Substitution
2x-y=7
3x-2y=10

Answers

Answer 1

Answer:

x=4

y=1

Step-by-step explanation:


Related Questions

AMONG US!
CODE-MRXLFF

Answers

Answer:

I have no idea but thanks for point

Answer:

YASSS AMOUNG USSSSSS

⚠️⚠️⚠️⚠️NEED HELP MARKING PEOPLE AS BRAINLIST!

Answers

Answer:

I think its C

Step-by-step explanation:

Thats my guesa

What is the probability of drawing a month that has 31 days?

Answers

Answer: 5/12

Step-by-step explanation:

-2x + y = 1
7x - y = -1

Answers

-8x+y

9-y

this is the answer because it is

Answer:

i dont know what you want but i will give you it to you in slope intercept form and the x and y intercept for both eqautions

Step-by-step explanation:

first equation:

y=2x+1

x intercept:(-1/2,0)

y intercept: (0,1)

second equation:

y=7x+1

x intercept:(-1/7,0)

y intercept: (0,1)

hope this helps pls mark brainliest this took me a long time to do :)

Triangle FGH is rotated and then dilated by a scale factor of n to form triangle F’G’H’.

If FGH F’G’H’ what is the value of n

Answers

Answer:

B. [tex] n = \frac{1}{3} [/tex]

Step-by-step explanation:

If ∆FGH ~ ∆F'G'H', then their corresponding side lengths would be proportional. This means:

F'G'/FG = G'H'/GH = F'H'/FH = n

The ratio of any of their corresponding side lengths will give you the value of n.

Therefore:

n = F'G'/FG

F'G' = 5

FG = 15

Thus,

[tex] n = \frac{5}{15} [/tex]

[tex] n = \frac{1}{3} [/tex]

The scale factor which is a fraction implies that the size of ∆FGH was reduced after dilation.

Darius paid 8.5% sales tax when he bought a new phone for $100. What was the total price of his new phone?
A. $108.05
B. $109
C. $105.50
D. $108.50

Answers

Answer:

To get the total amount plus sales tax you simply multiply 100 by .085 and you’d get 8.50$. So the answer is ‘D’.

Answer:

D

Step-by-step explanation:

108.5

Solve the system by finding the determinants and using Cramer's Rule:
2x - y = 4
3x + y = 1

Answers

Answer:

(1, - 2)

Step-by-step explanation:

2x - y = 4

3x + y = 1

A = [tex]\left[\begin{array}{cc}2&-1\\3&1\end{array}\right][/tex] = 2(1) - 3( - 1) =2 + 3 = 5

[tex]A_{x}[/tex] = [tex]\left[\begin{array}{cc}4&-1\\1&1\end{array}\right][/tex] = 4(1) - 1(- 1) = 4 + 1 = 5

[tex]A_{y}[/tex] = [tex]\left[\begin{array}{cc}2&4\\3&1\end{array}\right][/tex] = 2(1) - 4(3) = 2 - 12 = - 10

x = [tex]\frac{A_{x} }{A}[/tex] = 1

y = [tex]\frac{A_{y} }{A}[/tex] = - 2

(1, - 2)

Which statement best describes the relationship between inherited traits and genes

Answers

Where The Picture. ? Or Whole Problem

Answer:

options please

Step-by-step explanation:

What is a number that when you multiply it by 9 and then add
6 to it, you get 60?

Equation:

Solution:

Answers

Answer:

equation: 9x+6=60

solution: 6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

6×9=54

54+6+=60

Find the area under the standard normal curve to the right of z= 1.

Answers

Answer:

 

Step-by-step explanation:

A magazine costs 4.95 per month. If you buy a one year subscription, it's 30% cheaper. How much will you pay in one year with the discount?

Answers

Answer:

41.48/year

Step-by-step explanation:

4.95 x 12 = 59.40

59.40 × .30 = 17.82

59.40 - 17.82 = 41.48

1+6 pls help me nowwwwwww

Answers

Answer:

7

Step-by-step explanation:

Your answer would be 7

HELP please
David goes to LongHorn with his friend Alice. Their bill comes out to be $45.90. They decide to tip the waiter 25%. What is their total amount they leave?

Answers

Answer:

$57.38

Step-by-step explanation:

The total bill is $45.90.

They decided to tip the waiter 25%.

Therefore, the total amount they leave will be the total bill plus the amount they will tip.

They amount they tipped is 25% of the total bill. Therefore, the tip is 0.25(45.9) or approximately $11.48 (rounded up).

So, the amount they will leave is the original amount plus the tip. So, in total, they left:

$45.90+$11.48 or $57.38

Answer:

57.38

Step-by-step explanation:

percent means per one hundred, or 1/100.

25%=25/100

45.90 times 25/100= 11.475

Since money doesn't have a thousandthes digit, I just rounded it up to 11.48.

11.48+45.90=57.38

Another way you could do it would be to just mutiply 45.90 by 125/100 to get 57.375, which rounds to 57.38.

Select the correct months.
The balance of Jim's account on the first day of the month for the first six months of 2013 is given. Identify the months when the balance was
less than the balance in January.

Please answer.

Answers

Answer:

June I got u bro it was easy but there u got

Answer:

june,april,march

Step-by-step explanation:

yeeeeeeeeeeeeeeee i <3 waaaaaaaaafuls

Please help with the problem in the picture ^ I’ll give brainliest if you give me a small explanation! :)

Answers

Answer:

it is c if you add 2x8 wich makes 16

Last week, Kira drove 291 miles. This week, she drove n miles. Using n, write an expression for the total number of miles she drove in the two weeks.

Answers

Answer:

d = 291 + n

Step-by-step explanation:

Given that,

Last week, Kira drove 291 miles. Then this week she drove n miles.

We need to find an expression for the total number of miles she drove in the two weeks. It can be calculate by adding distance force 2 weeks. So,

d = 291 + n

Hence, this is the required solution.

three less than the sum of a number and
twelve

Answers

Answer:

(x + 12) - 3

Step-by-step explanation:

I used x for "a number".

Hope this helps and pls do mark me brainliest:)

Mae ling earns a weekly salary of 400 plus a 6.5 commission on sales at a gift shop how much would she make in a work week if she sold 4300 worth of merchandise

Answers

Answer:

Mae Ling will make $679.5 in a week if she sells 4300 worth of merchandise.

Step-by-step explanation:

Given that

Weekly salary of Mae Ling = $400

Commission rate = 6.5%

Mae ling's total weekly earning will be her salary plus her commission on the sales she does in the week.

Given that her sales for the said week are: $4300

Her commission will be:

[tex]Commission = 6.5\%\ of\ sales\\ = 0.065*4300\\=\$279.5[/tex]

Now to calculate her total salary, we will add the weekly salary and commission.

[tex]Total\ weekly\ Earning = Weekly\ Salary +\ Commission\\= \$400+\$279.5\\=\$679.5[/tex]

Mae Ling will make $679.5 in a week if she sells 4300 worth of merchandise.

Simplify 6/4.
Thank tou

Answers

Answer:

2 1/2

Step-by-step explanation:

6/4=3/2=1 1/2

Answer:

6/4= 3/2

so you now divide 2 by the 3 which will give you;

1.5

The expression 4x − 2(5x − 1) is equivalent to the expression 2 + 6x.

True
False

Answers

I wanna say it’s true

It is false that the expressions 4x − 2(5x − 1) and 6x + 2 are equivalent expressions

How to determine the true statement?

The expression is given as:

4x − 2(5x − 1)

Open the bracket

4x − 2(5x − 1) = 4x − 10x + 2

Evaluate the like terms

4x − 2(5x − 1) = − 6x + 2

− 6x + 2 and 6x + 2 are not equal expressions

Hence, 4x − 2(5x − 1) and 6x + 2 are not equivalent expressions

Read more about equivalent expressions at:

https://brainly.com/question/2972832

#SPJ2

which of the following equations is perpendicular to y=3/4+4 and passed through the point (6,-12)

Answers

Answer:

The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept. Using the slope-intercept form, the slope is 4 4 . The equation of a perpendicular line to y=4x−5 y = 4 x - 5 must have a slope that is the negative reciprocal of the original slope.

Step-by-step explanation:

Solve five and three sixths minus two and one third.

(GIVING BRAINLIEST AND EXTRA POINTS ON THIS ONE!! PLS HELP ASAP!)

A) Two and three eighteenths

B) two and two ninths

C) three and two ninths

D) three and three eighteenths

(Here is an image if needed) :

Answers

Answer:

3 3/18

Step-by-step explanation:

5 3/6-2 1/3

We first need to turn our mixed numbers into fractions by multiplying the while number by the denominator, then adding the numerator. When we do this, 5 3/6 turns into 33/6 and 2 1/3 turns into 7/3. Now we have this:

33/6-7/3

Now we need to find the Least common multiple of the denominators in order to find our common denominator, which in this case is 6. 33/6 already has a denominator of 6, so we do not need to do anything to it. To give a denominator of 6 to 7/3, however, we must multiply by 2, giving us this:

33/6-14/6

Now we can subtract the numerators.

19/6

To turn this back into a mixed number, we divide 19 by 6, which gives us 3 with a remainder of 1. Therefore, our answer is 3 1/6. This is an equivalent fraction to the fourth answer, 3 3/18.

HTH :)

Answer:

3 3/18

Step-by-step explanation:

A is what percent of B? c A = 10 km, B = 1 km

Answers

Answer:

1000%

Step-by-step explanation:

Answer:

1000%

Step-by-step explanation:

The comparison is 10km and 1km, right?

A is 10 times bigger than B.

100% times 10 is 1000%

Hope this helps. :)

If x is the principal square root of 7, what must be true?

Answers

Are there any answer choices that you can give to me

I just picked a random answer idk which one is it someone help

Answers

Answer:

I think your answer is correct #.#

Step-by-step explanation:

You’re answer is totally correct!!!

12,320 yd = how many MI

Answers

Answer:

7 mi

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

12,320 yds

Step 2: Define conversion

1 mi = 1760 yds

Step 3: Find mi

[tex]12,320 \ yds(\frac{1 \ mi}{1760 \ yds} )[/tex] = 7 mi

What is the approximate ratio of the difference in means to the MADs of the data sets? 4 6 7 31

Answers

Answer: The answer is 6

Step-by-step explanation:

Edginuity

Answer:

B: 6

Step-by-step explanation:

edg2020

2.5% of Iphones tested were defected. How many Iphones out of 5000 would be defected?

Answers

Answer:

I think the answer would be 125 iPhones.

Step-by-step explanation:

So basically the question is what is 2.5% of 5000.

Just multiply 5000 * 0.025 = 125

A commercial apple grower estimates from past records that if 50 trees are planted per acre, then each tree will yield an average of 70 pounds of apples per season. If, for each additional tree planted per acre (up to 30), the average yield is reduced by 1 pound, how many trees should be planted per acre to obtain the maximum yield per acre? What is the maximum yield?

Answers

Answer:

i) 60 trees

ii) 3600 apples

Step-by-step explanation:

50 trees per acre

Total pounds produced per acre ( ideally ) = 70 * 50 = 3500 pounds

Assumption :

lets assume the additional tree = X

Therefore the number of trees planted per acre = ( 50 + x )  where x ≤ 30

calculate average yield per tree =   ( 70 - x )

Total yield per acre = number of trees * average yield per tree

                                 = ( 50 + x ) * ( 70 - x )

                           Y(x)   =  3500 + 20x - x^2

i) Number of trees that should be planted per acre to obtain maximum yield per acre

y'(x) = 20 - 2x = 0   hence X ( number of additional trees ) = 20 / 2 = 10

Number of trees that should be planted per acre = 50 + 10 = 60 trees

ii) Calculate maximum yield

where ; X = 10

number of trees planted per acre = ( 50 + x ) = 50 + 10 = 60

hence maximum yield  = ( 50 + x ) * ( 70 - x ) = ( 60 ) * ( 60 ) = 3600 apples

The difference between the sample value and the true value in the population under study is referred to as _______.

Answers

Answer:

a. sampling error

Step-by-step explanation:

These are options for the question below;

a. sampling error

b. random error

c. measurement error

d. chance correlation

e. none of these

Sampling error can be regarded as statistical error, this do occur when the person analysing the data just select portion out of the data, which doesn't fully cover for the whole population of the data, and after the analysis the gotten result doesn't resemble the kind of result that could have gotten if the whole population of Data is used. It occurs where there is more difference exist between population parameter and a sample statistic.

Mathematically sampling error can be calculated using below formula

Sampling error= Z √[p(1-p)/n] [1-√(N/n)

Where

N= population size

n=sample size

Z= score for the selected confidence level

P= proportion of people surveyed

It should be noted that The difference between the sample value and the true value in the population under study is referred to as sampling error

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