Consider the system of equations below. What could be the first step in solving by elimination? 3x + 5y = 16 and 3x + 2y = 10

A. Add the two equations together.
B. Add 5 to both sides of the first equation.
C.Add 5 to both sides of the first equation.
D.Multiply the second equation by 2.

Answers

Answer 1

Answer:

I think C :)

Step-by-step explanation:

Answer 2

Answer:

c would be the answer

Step-by-step explanation:


Related Questions

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 9 inches.

Part A: Write a list of 6 ordered pairs to show the height of the candle in inches (y) as a function of time in hours (x) from the first hour after it started burning. For example, the point (0, 9) would represent a height of 9 inches after 0 hours. Explain how you obtained the ordered pairs. (5 points)

Part B: Is this relation a function? Justify your answer using the list of ordered pairs you created in Part A. (2 points)

Part C: If the rate at which the candle burned was 0.45 inches per hour instead of 0.5 inches per hour, would the relation be a function? Explain your answer using input and output values. (3 points)

Answers

B is a function that the only one ik

HELP I AM TIMED W WILL MARK BRAINLEST
How many groups of Two-thirds are in Three-fifths?

A fraction bar labeled 1. Under the 1 are 5 boxes labeled one-fifth. Under the 5 boxes are 3 boxes containing one-third. Under the 3 boxes are 15 boxes labeled StartFraction 1 Over 15 EndFraction.

Answers

Answer:

1

Step-by-step explanation:

Answer:

1 and 4/15 or 2

Step-by-step explanation:

Henry made himself a sandwich that was StartFraction 11 Over 12 EndFraction of a foot long. He put pepperoni on Three-fourths of his sandwich. What length of the sandwich did not have pepperoni on it? StartFraction 11 Over 48 EndFraction of a foot StartFraction 5 Over 16 EndFraction of a foot StartFraction 11 Over 16 EndFraction of a foot StartFraction 9 Over 11 EndFraction of a foot

Answers

Answer:

D

Step-by-step explanation:

Answer:

The answer is A on the edge.

Step-by-step explanation:

HELP!! I WILL GIVE YOU BRAINLIEST!!!

Answers

Answer:

A

C

D

E

I believe thats the answer:)

Step-by-step explanation:

The answer is c because I did this a while bavk

I need hlp
Explain your reasoning

Answers

1. the boy would weight about 10 pounds because u divide the weight by 6

2. 22.7 lbs
1. the boy would weigh about 10 pounds because you would divide the weight by 6!!
2. (22.7 pounds)

The vertex of the parabola described by the equation 3y=2x^2-16x+18 is (m,n). What is m+n?

Answers

Answer:

the aswer is 32

Step-by-step explanation:

The vertex of the parabola described by the equation 3y=2x^2-16x+18 is (m,n). the sum of m + n is 178/27.

To find the vertex of the parabola described by the equation 3y = 2x^2 - 16x + 18, we first need to put the equation in the standard form of a parabola, which is y = a(x - h)^2 + k, where (h, k) represents the vertex.

Let's begin by dividing the entire equation by 3 to simplify it:

y = (2/3)x^2 - (16/3)x + 6

Now, we need to complete the square to rewrite the equation in the form y = a(x - h)^2 + k:

y = (2/3)(x^2 - (8/3)x) + 6

Next, we need to find the value that completes the square for the expression inside the parentheses. To do that, we take half of the coefficient of x and square it:

(8/3) / 2 = 4/3

(4/3)^2 = 16/9

Now, we add and subtract 16/9 inside the parentheses:

y = (2/3)(x^2 - (8/3)x + 16/9 - 16/9) + 6

Now, we group the first three terms and factor the perfect square trinomial:

y = (2/3)((x - 4/3)^2 - 16/9) + 6

Next, distribute the (2/3):

y = (2/3)(x - 4/3)^2 - (2/3)(16/9) + 6

Now, simplify:

y = (2/3)(x - 4/3)^2 - (32/27) + 6

Finally, bring everything together:

y = (2/3)(x - 4/3)^2 + (142/27)

Now we can see that the vertex of the parabola is at the point (h, k) = (4/3, 142/27).

To find m + n, we simply add the x-coordinate (h) and the y-coordinate (k):

m + n = 4/3 + 142/27

To add these fractions, we need to find a common denominator, which is 27. Convert 4/3 to have a denominator of 27:

4/3 = (4/3) * (9/9) = 36/27

Now we can add the fractions:

m + n = 36/27 + 142/27

m + n = (36 + 142)/27

m + n = 178/27

To know  more about  vertex of the parabola:

https://brainly.com/question/29267743

#SPJ2

what is 5(​x​ + 2)+10 simlified?

Answers

Answer:

Step-by-step explanation:

5(X+2) =  5x +10 +10  5x=10-10=-20

-20/5=  -4

to be honest these might not be right but maybe 2

HELP WILL GIVE BRAINLEST FOR CORRET ASWER

Answers

1.) -15
2.) 104
3.) 220
4.) -11
5.) -9
6.) 705

The table below shows the amounts of cherry juice and soda used in each container of cherry soda. The ratio of cherry juice to soda is 1:r, where r is the unit rate. Use the table to determine r. (4 points) Cherry Juice (cup) Soda (cup) one-fourth 1 2 8 3 12
Group of answer choices
A. one-fourth
B. 4
C. 2
D. two-thirds

Answers

Answer:

is d i did the test c is wrong

Step-by-step explanation:

Please answer question correct.

Answers

Answer:

A 13.75

Step-by-step explanation:

because you said the you 1 ponit for every right ans and -0.25 for incorret ans so 15 right ans would give you 15 ponits and 5 incorret ans would give you -1.25  so i add up  

15+-1.25=13.75 or 55/4

i did do the math so it is right

Solve.
ASAP
90 = 5x + x

Answers

Answer:

15

Step-by-step explanation:

LEtS Do It PrOpeRly

90=5x+1x

90=6x

x=

[tex] \frac{90}{6} [/tex]

if we divide 90÷6=15

A sporting goods company has three stores, all about the same size, within the city. The graph shows last month’s sales figures for one of the stores. Which statement is best supported by the information in the graph?

Answers

the answer should be “25% of.....was in the athletic department” the total sales is 60,000 and athletic department made 15,000 with is 1/4 (25%) of the total sales

Answer:

b

Step-by-step explanation:

The graph shows the amount of money paid when purchasing bags of peanuts at the zoo: A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 13. Four points are shown on the graph on ordered pairs 0, 0 and 1, 4 and 2, 8 and 3, 12. These points are joined by a line. The label on the x-axis is Bags of peanuts. The title on the y-axis is Total cost in dollars. What is the cost of one bag of peanuts? (4 points) Group of answer choices
A. $0
B. $4
C. $8
D. $12

Answers

Answer: B. $4

Step-by-step explanation:

Which expression is equivalent to 2(m − 4) + 1? 2m − 7 2m − 3 2m + 9 2m + 10

Answers

Answer:

2m - 7

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

2(m - 4) + 1

Step 2: Simplify

Distribute 2:                    2m - 8 + 1Combine like terms:       2m - 7

2m - 7

take it from the experts ^

Sam and his family go out to eat for his birthday. The total bill is $123.79. If his dad leaves the waitress a 15% tip, how much will the waitress receive?

Answers

Answer:

$18.5685 or $18.56

Step-by-step explanation:

The answer is $18.56 because 123.79 multiplied by 15% is $18.56

Answer:

about $18.75

Step-by-step explanation:

15% of 123.79 is 18.5685

Which trend line has been drawn correctly using the divide-center method?

Answers

A but I'm not sure so can you tell me what it is

Distances in space are measured in light-years. The distance from Earth to a star is 4.1 × 1013 kilometers. What is the distance, in light-years, from Earth to the star (1 light-year = 9.46 × 1012 kilometers)? (5 points)


0.23 light-year

2.36 light-years

4.33 light-years

5.36 light-years

Answers

Answer:

5.36 light years

Step-by-step explanation:

if a light-year = 9.46 x 1012

9.46 x 1012 = 9512.8

4.1 x 1013 = 4153.3

After that you would subtract

9512.8 - 4152.3 = 5.360.5

the real answer is 5.36 light years

So the distance in light years from earth is 5.36 light years

Hope this helps

The table shows the amount of red paint that can be added to different amounts of white paint while making a custom paint color: Paint Color Quarts of Red Paint Quarts of White Paint 4 20 5 25 7 35 8 40 Which statement is true about the ratio of red paint to white paint in the paint color? (4 points)
Group of answer choices
A. It is 1:16.
B. It is 16:1.
C. It is 5:1.
D. It is 1:5.

Answers

Sorry to say this but the answer isn't C it is D. It is 1:5 I did the test and past sorry i came so late

but i hope this helps ^.^

Which equation is true? *

831 x 10^2 = 8,310
406 x 10^3=406,000
915 x 10^4 = 915,000
257 x 10^2 = 257,000

Answers

The answer would be a.
the answer it’s A i used a calculator

Find the sum of the absolute deviations of the following data set.

8, 5, 15, 12, 10

Answers

Answer:

1

Step-by-step explanation:

8/1=8

5/1=5

15/1=5

12/1=12

10/1=10

So I think that answer is 1.

Answer:

I think the answer is 2.8.

Step-by-step explanation:

Absolute Deviation is where N is the number of observed values, X-bar is the mean of the observed values and XI are the individual values.

What is the surface area, in centimeters, of a cube with a side length, s, of cm?

Use the formula of surface area = 6s²

Answer: ⬜

Use / for a fraction. Example 1/2

Answers

Answer:

216cm

Step-by-step explanation:

i think that's right

Area is 6s^2 and that’s one side: a cube has 6 sides so the surface area is 6(6s^2) = 36s^2 cm

Karen earns $5 by delivering newspapers each week. She saves $3 and she spends the rest. How many weeks will it take her to save enough money to buy a $35 gift card? (Use the table to help you solve the problem; you will need to copy it onto a piece of paper

Answers

Answer:

12 Weeks.

( Is this what you were asking for? <3 )

Please help ASAP I will also give brainiest :)

Determine the intercepts of the line.

Answers

x intercept is (5/2,0)
y intercept is (0,5)

Answer:

x: (5/2,0)

y: (0,5)

Step-by-step explanation:

To solve for x-intercept, substitute 0 for y.

-4x+7=2(0)-3

-4x+7=-3

-4x=-10

x=10/4 or 5/2

To solve for y-intercept, substitute 0 for x.

-4(0)+7=2y-3

7=2y-3

10=2y

y=5

Is the percent increase from 50 to 70 equal to the percent decrease from 70 to 50? Explain.

Answers

Answer:

No. The amounts of change are the same, but the original amounts are different.

Answer:

Step-by-stepNo. The amounts of change are the same, but the original amounts are different. explanation:

I have two questions and one will be on topic so please don't report.

1. Can someone give me a summary of Linear relationships? I still can't get a grip on it which is making me fail math.
&
2. Why do people report the memes on here? Like they are supposed to be left here and uplifting. Not deleted and forgotten just because.

Answers

Linear is basically a straight line on a graph and in a table when why changes it choice change the same amount through out for example 3,6,9,12,15 it’s by three if it’s like 2.1.3.3 it wouldn’t be linear bcuz it goes -1,+2,0

Question below answer asap please

Answers

Answer:

I think flip and rotate

D=A which means D gets to the spot where A is.

The answer would be D=A

Which model is NOT a function? (i accidentally clicked on b ignore that lol)

Answers

Answer:

C

Step-by-step explanation:

It's the only one where an x-axis has more than one y-axis.

I hope this explanation helps.

i need help with this

Answers

Answer:

im not good at math

Step-by-step explanation:

What is the diagonal space of a cube? Can someone detail it to me with an example? Thanks

Answers

Answer:

four

Step-by-step explanation:

Space diagonals contrast with face diagonals, which connect vertices on the same face (but not on the same edge) as each other. For example, a pyramid has no space diagonals, while a cube (shown at right) or more generally a parallelepiped has four space diagonals.

what is -3/4, -3, 0.75, -1.8, -3.5 ordered greatest to least i need the full order thx

Answers

Answer:

0.75, -3/4, -1.8, -3, -3.5

Step-by-step explanation:

Answer:

0.75, -3/4, -1.8, -3.5

Hope this helps :)

Step-by-step explanation:

-3/4 is also -0.75

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