Mathematics College

-x+y=1
-6x+3y=-12
Solve

Answers

Answer 1

Answer:

-x = -y + 1

x = 0.5y + 2

Step-by-step explanation:

Related Questions

HELP!!!!!!!!!!! !!!!!!!!!!

Answers

Answer:

second one is 3, the last one is 4560

Step-by-step explanation:

A Red Queen is multiplying 32 x 17. She says the answer is going to be greater than 17. Do you Disagree or Agree with her?Why?

Answers

Answer:

Yes

Step-by-step explanation:

Because 17 times 32 equals 224

please help me with this math project (photo linked). (7th grade unit 3) check my other questions plsss (last one)

Answers

1.  -3x - 17

2. -24x + 25

3. 2x + 4

4. -9x -9

5. 7x - 2

A retail ice cream salesman divides his working days into 'sunny', 'medium', and 'cold'. He estimates that the probability of it being sunny is 0.2, and cold 0.3. If his gross sales on these three types of day are $50, $35, and $10 respectively on average and his average daily costs are $18 on any day.

Required:
a. Complete the probability distribution.
b. Find his expected profit per day.

Answers

Answer:

30.5

Step-by-step explanation:

Let ;

Sunny = S ; Medium = M ; Cold = C

_____ S _____ M ___ C

__X : 50 ____ 35 ___ 10

P(X) : 0.2 ____ 0.5 __ 0.3

P(M) = 1 - (0.2 + 0.3)

P(M) = 1 - 0.5 = 0.5

Expected profit per day, E(X)

E(X) = sum of (X * p(x)

E(X) = (50 * 0.2) + (35 * 0.5) + (10 * 0.3)

E(X) = 10 + 17.5 + 3

E(X) = 30.5

In solving the equation, 1/4x = 4, what does 'x' equal?

Answers

Answer:

16

Step-by-step explanation:

Answer:

1/16

Step-by-step explanation:

4          = 1 / 4x       /* 4x

4 * 4x  = 1

16 * x    = 1              /:16

x = 1/16

Given below are descriptions of two lines.

Line 1: Goes through
(
−
5
,
−
9
)
and
(
12
,
42
)


Line 2: Goes through
(
−
9
,
6
)
and
(
−
3
,
4
)


The slope of Line 1 is
m
=



The slope of Line 2 is
m
=



Finally, which of the following is true?
Line 1 is parallel to Line 2.
Line 1 is perpendicular to Line 2
Line 1 is neither parallel nor perpendicular to Line 2

Answers

Answer:

Yes

Step-by-step explanation:

Need the answer ASAP

Answers

Answer:

63

Step-by-step explanation:

To find the area of a trapezoid you have to use the formula

a+b/2 h

So we would substitute them

3 + 15 / 2 x 7

Which would equal

63

Hope this helps :)

Five less than 10 times a number is -13.

Answers

Answer:

10 x X - 5 = -13

Answer:

Step-by-step explanation:

10x-5= -13

10x= -13+5

10x= -8

x= 10/-8

x= -1.25 or 5/-4

How do I solve this? Will mark brainliest

Answers

Answer:hi

Step-by-step explanation:

its d

season the Texans won 4 out of 12 games. What percent of games the Texans in last season?​

Answers

Answer:

This question sounds incomplete

If you're asking for the percentage of the games they've won:

33.33%

If you're asking for the percentage of the games they've lost:

66.66%

Need help please ASAP.
The school has 6 rows of lockers. Each row has 35 lockers. For the first 5 rows, all of locker are taken. For the last row, 3/5 of the locker are taken , 3/4 of all locker that are taken have decorated name tag. How many locker at school have decorated name tags.
a) 145
b) 141
c) 143
d) 147

Answers

The number of locker at school have decorated name tags is 147. Therefore, option D is the correct answer.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, the school has 6 rows of lockers. Each row has 35 lockers.

For the first 5 rows, all of locker are taken.

Number of lockers in 5 rows are 35×5=175

For the last row, 3/5 of the locker are taken is

3/5 ×35 =21

So, the total number of lockers taken = 175+21

= 196

3/4 of all locker that are taken have decorated name tag

Now, 3/4 ×196

= 3×49

= 147

Therefore, option D is the correct answer.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ1

I need help :( on math and I forgot to study!:

When is the additive relationship used? Select all that apply.

1.When subtracting the same amount to an x-value.
2.When dividing the same amount to an x-value.
3.When multiplying the same amount to an x-value.
4.When adding the same amount to an x-value.

Answers

Answer:

3 and 4

Step-by-step explanation:

Answer:

1st and last one just did the question and it was right

PLS HELP AND ANSWER QUICK

Answers

Answer:

ACB=44°

DCE=35°

BCD=101°

Step-by-step explanation:

ACB is a triangle and all triangles are 180 degrees

78+58=136

180-136=44

DCE is also a triangle

85+60=145

180-145=35

a straight line is 180 degrees, we already know what the other two is.

35+44=79

180-79=101

A person earns ​$23 comma 600

one year and gets a​ 5% raise in salary. What is the new​ salary?

Answers

Answer:

la respuesta que buscas es bastante simple pero no lo sé

Step-by-step explanation:

Gabrielle spends $12 of her weekly allowance on lunch. If this amount is 60% of her weekly allowance, what is her total weekly allowance? Use a proportion to solve.

Answers

Answer:

don't type that link it's a scam dawg

I need help with these QUESTIONS ANYONE ?????!!!!!

Answers

I think it’s the Second one

POSSIBLE POINTS. 1
On the written portion of her driving test, Leslie answered 65% of the questions correctly. If Leslie answered 78 questions correctly, how many questions were on
the driving test?
What part is missing?
O percent
a
ASAP!!!

Answers

Answer:

Step-by-step explanation:

Which is true about the area of the parallelogram? The area of the parallelogram is 15 units2

Answers

Answer:

equal to

Step-by-step explanation:

got it right on edge 2021

Answer:

equal to

Step-by-step explanation:

187÷20=??
Plz help me and plz show your work.

Answers

Answer:

9.35

Step-by-step explanation:

This is a simple division problem all you have to do is 187 by 20 to get 9.35

Answer:

9.35

Step-by-step explanation:

In order to solve this, we need to use a method called long division. Long division is dividing but on a bigger scale. You would set up the problem like this:

187 ÷ 20

Now you see how many times 20 goes into 187.

Since it goes into 187 9 times, we know that our whole number is going to be 9. You would then need to figure out how many times 2 goes into 7. Because 2 goes into seven 3 1/2 times, we can now put our answer together. 9.35 is the answer.

You could also just use a calculator. Using a calculator would be much faster and simpliler.

I hope this helps. Please let me know if you need any more help. Have a great day!

solve for the missing side ​

Answers

Answer: 8

Step-by-step explanation: you have to cross multiply 6 and 4 to get 24. 24/3 is 8

Hope this helps

Mr. Jackson and Ms. Collins 3rd grade classes are going on a field trip to the science museum. There are 20 children in one classroom and 22 students in the other. The students will tour the museum in groups of 7 How many groups will there be 49 47 8 7 6​

Answers

the answer is 6 because 42 divided by 7 = 6

Tarzan is making his mom a card for her birthday. He drew a model of the card before he created it. The model is shown below.

The front of the card is shown. If Tarzan covers the whole front side of the actual card with decorative paper, how much paper would he need? you may use exact answers or round to the nearest hundredth.

Answers

Answer:

The area of a triangle uses the equation:

A = ab/2

a = 12

b = 9

A = 12 * 9 / 2

A = 54 inches

54 / 3 = 18

He needs 18 feet of paper

Tarzan need 18 feet of paper to make his mom a birthday card

Real answer not a scam

Answers

Answer:

Area = 240 cm²

Step-by-step explanation:

Area of the shape = area of rectangle + area of triangle

= L*W + ½*bh

L = 18 m

W = 10 m

b = 10 m

h = 30 - 18 = 12 m

Plug in the values

Area of the shape = 18*10 + ½*10*12

= 180 + 60

= 240 cm²

A store bought a golf club at a cost of $176 and marked it up 25%. Jen bought it and paid 10% sales tax. What was her total cost.​

Answers

176 x .25 = 44
176 + 44 = 220
220 x .10 = 22
220 + 22 = $142 total cost

Answer:

176 x .25 = 44

176 + 44 = 220

220 x .10 = 22

220 + 22 = $142 total cost

Step-by-step explanation:

Can someone help me and not be a troll.... I’ll reward points + brainalist

Answers

Answer:

The answer is 69.5

Step-by-step explanation:

First u wanna find the area of the rectangle and since it already gives you the the height and width you want to multiply them together 13×4= 52

meanwhile triangle is 5ft tall and the base is 7ft

using the formula to solve for area of a triangle you would multiply height and base and divide by 2

you should end up with 17.5 then u add that to 52 and get 69.5 ♡ Hope this helps.

Solve the following proportion for
y
y
4
=
11
17
Round your answer to the nearest tenth.
please helppp

Answers

yes oh is it for a new pfp year anniversary of thanksgiving day at the same time and i dont

$668 at 9.25% for 15 months

Answers

3. $668 at 9.25% for 15 months​4. $285 at 8.5% for 2 ½ years


​$77.24

Sandra saves 12% of her salary for retirement. This year her salary was $3,000 more than in the previous year, and she saved $4,200. What was her salary in the previous year?write an equatio____.sandre's salary in the previous year was___

Answers

Answer:

44

Step-by-step explanation:

5. Your students have been working on algebra equations involving inequalities. The
rule for learning the > sign is:
ОООО
A) the arrow has nothing to do with numbers.
B) the arrow always points to the largest side.
the arrow always points to the smallest side
D) the opening of the arrow is always on the smallest side.

Answers

Answer:

C) the arrow always points to the smaller side

Step-by-step explanation:

if you struggle to remember think of it as a crocodile going for the highest amount of 'food', in this case the food is the number

Answer: C, the arrow always points to the smallest side.

Step-by-step explanation:

A way of remembering which way the '>' sign goes is to think of it as a crocodile mouth (the open bit) and the crocodile wants the most food (the biggest number).

Ralph opened up his checking account with $100. On Monday, he withdrew $45 to purchase a pair of jeans. On Wednesday, he deposited a $25 check he received for his birthday from his uncle. On Friday, he used his debit card to buy a $98 football ticket. What is the balance in Ralph's checking account?

Answers

Answer:

The answer is -18

Step-by-step explanation:

He starts off with $100 in his account. He then take so $45 to purchase a pair of jeans, so we have to subtract 45 from 100 and that gives us $55. He now has $55 in his account, he then adds another $25 to his account, so we have to add 25 to 55 and that will give us $80 in his account. Finally on Friday he takes out $98 of his checking account. He takes out more than he has in his checking account so we have to subtract $80 from $98 and we will get $18, but since he takes out more than what he has in his account the answer will be negative and we end up with -18 dollars in his checking account.

Answer:72

Step-by-step explanation:

Other Questions
Why was the peace corps created? What was its purpose ? Which is the equation for the line that has a slope of 12 and passes through the point (3, 20)? I need helpppp ASAP!!!!!! 3. What is the general pattern of current flow and temperature within the Atlantic basin? In your own words, explain the six major ways in which Turkle says that computers are changing the way people think. Why does she think it is important that we pay attention to these changes? I need help ASAP marking braniiest 328 x 36 Step by step What is the radius and diameter of the following circle? Find the equation, in slope-intercept form, of a line with a slope of 5/2 which goes through the point (-2, 4). QUESTIONWhat is the exigence of the piece and how does that factor into theauthor's purpose? Find the area of a trapezoid. Help me pls for 13 points f(x) = -2x^2-4x+11in the standard formf(x) = a(x h)^2+k What is the rocks velocity when it reaches the bottom? How do you know? Martin and Clara decide to keep track of the number of different colors in two brands of tennis shoes, brand A and brand B. Their results are represented by the dot plots. The mean absolute deviation for brand A is . The mean absolute deviation for brand B is . The mean absolute deviations for the two brands similar. Find the slope of the line graphed A news article estimated that only 4% of those age 65 and older who prefer to watch the news, rather than to read or listen, watch the news online. This estimate was based on a survey of a large sample of adult Americans. Consider the population consisting of all adult Americans age 65 and older who prefer to watch the news, and suppose that for this population the actual proportion who prefer to watch online is 0.04. (a) A random sample of n = 100 people will be selected from this population and p, the proportion of people who prefer to watch online, will be calculated. What are the mean and standard deviation of the sampling distribution of p? (Round your standard deviation to four decimal places.) mean 0.04 standard deviation 0.0196 (b) Is the sampling distribution of p approximately normal for random samples of size n = 100? Explain. The sampling distribution of p is approximately normal because np is less than 10. O The sampling distribution of p is approximately normal because np is at least 10. The sampling distribution of p is not approximately normal because np is less than 10. The sampling distribution of p is not approximately normal because np is at least 10. The sampling distribution of is not approximately normal because n(1-P) is less than 10. (c) Suppose that the sample size is n = 400 rather than n = 100. What are the values for the mean and standard deviation when n = 400? (Round your standard deviation to four decimal places.) mean 0.03 standard deviation 0.0085 Does the change in sample size affect the mean and standard deviation of the sampling distribution of ? If not, explain why not. (Select all that apply.) 2 When the sample size increases, the mean increases. When the sample size increases, the mean decreases. When the sample size increases, the mean stays the same. The sampling distribution is always centered at the population mean, regardless of sample size. When the sample size increases, the standard deviation increases. When the sample size increases, the standard deviation decreases When the sample size increase the standard deviation stays the same. The standard deviation of the sampling distribution is always the same as the standard deviation of the population distribution regardless of sample size. Suppose that the sample size is n = 400 rather than n = 100. What are the values for the mean and standard deviation when n = 400? (Round your standard deviation to four decimal places.) mean 0.03 standard deviation 0.0085 Does the change in sample size affect the mean and standard deviation of the sampling distribution of p? If not, explain why not. (Select all that apply.) When the sample size increases, the mean increases. When the sample size increases, the mean decreases. When the sample size increases, the mean stays the same. The sampling distribution is always centered at the population mean, regardless of sample size. When the sample size increases, the standard deviation increases. When the sample size increases, the standard deviation decreases. When the sample size increases, the standard deviation stays the same. The standard deviation of the sampling distribution is always the same as the standard deviation of the population distribution, regardless of sample size. (d) is the sampling distribution of p approximately normal for random samples of size n = 400? Explain. The sampling distribution of p is approximately normal because np and n(1 - p) are both at least 10. The sampling distribution of p is approximately normal because np and n(1 - 0) are both less than 10. The sampling distribution of p is not approximately normal because np and n(i - p) are both at least 10. The sampling distribution of p is not approximately normal because np and n(1-P) are both less than 10. The sampling distribution of p is not approximately normal because only np is at least 10. u r perfect the way you are dont let anyone tell you different Please help me with 1,2,3,4,5 dont give me a link Hogg favored a Railroad Commission that would -. give small loans to farmers to pay their debtsB. help stock market investors earn greater returnsC. assist immigrants in finding jobs in the railroad industryD. use government policies to end unfair business practices The measures of the angles of a triangle are shown in the figure below. Solve for x.