MATHEMATICS MIDDLE SCHOOL

What is the solution for the following system of equations? Use ANY method to solve. 2x + 8y = 4 x = -3y + 5 Question 4 options: x = 14, y= -3 x = 2, y = -3 x = -3, y = -3 x = 12, y = 5

Answers

Answer 1
Answer:

Answer:

x = 14, y= -3

Step-by-step explanation:

Solve the following system:

{2 x + 8 y = 4 | (equation 1)

{x = 5 - 3 y | (equation 2)

Express the system in standard form:

{2 x + 8 y = 4 | (equation 1)

{x + 3 y = 5 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + 8 y = 4 | (equation 1)

{0 x - y = 3 | (equation 2)

Divide equation 1 by 2:

{x + 4 y = 2 | (equation 1)

{0 x - y = 3 | (equation 2)

Multiply equation 2 by -1:

{x + 4 y = 2 | (equation 1)

{0 x+y = -3 | (equation 2)

Subtract 4 × (equation 2) from equation 1:

{x+0 y = 14 | (equation 1)

{0 x+y = -3 | (equation 2)

Collect results:

Answer:  x = 14, y = -3

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A gasoline tank is leaking at a rate of n gallons un t hours. If the gasoline cost $2 per gallon, what is the value of the gasoline that will be lost in m minutes?

Start time: 7:15 A.M. Elapsed time: 2 hrs 20 mins End time?

Answers

The time would be 9:35 am
Hi, Mystic0user0!
So the question is asking for the time 2 hours and 20 minutes after 7:15.

It's a lot like adding numbers.

So first add the minutes. 15+20 minutes. That would give you 35 minutes.

Then add the hours. 7+2. That would be 9 hours since there is no carry over from the minutes.

The End Time would be 9:35 AM.

Hope this helps :)

Abhasra had some candy to give to her 4 children. She first took 9 piecesfor herself and then evenly divided the rest
among her children. Each child received
4 pieces. With how many pieces did
she start?

Answers

Answer:

25 pieces

Step-by-step explanation:

She took 9 pieces for herself, which means that we already know that she had at least 9 pieces. She has 4 children and gave them each four, so you times 4 children times 4 pieces each.

That gives us 16. 16=9=25

So 25 pieces. Hope it helps!

What's 1 whole minus 2/3 ?

Answers

The solution of 1 minus 2/3 is 1/3.

What are mathematical operations?

Calculate the answer using a math operator is referred to as a mathematical operation.

Basic mathematical operations are addition, multiplication, subtraction and division.

The given numbers are 1 and 2/3,

To find 1 minus 2/3

Take difference of 1 and 2/3 by using mathematical operations,

1 - 2 / 3

= (3 - 2) / 3

= 1 / 3

The required difference is 1/3.

To learn more about Mathematical operations on :

brainly.com/question/22469627

#SPJ2
1 becomes 3/3. Then you do 3/3-2/3 = 1/3

Your answer is 1/3

Round the number to the given place value. 1.044; hundredths    A.1.5  B.1.4  C.1.05  D.1.04i think it is D. Am i correct?

Answers

Yes, you are correct. The answer is D. 1.04.

What is the distance between the points (–3, 5) and (2, –6)? Round your answer to the nearest tenth.

A.
1.4 units

B.
5.1 units

C.
12.1 units

D.
16.0 units

Answers


the answer is C.12.1 units
Distance between the points is d. 16.o units

pamela wants to buy a new mercedes.The mercedes wheel has a radius of 35', what is the area of the mercedes wheel?

Answers

pamela wants to buy a new mercedes.The mercedes wheel has a radius of 35', what is the area of the mercedes wheel? the answer would be 3848.45
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