Please help me answer this for my grade !! I will give braisnlt

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

6 0

Step-by-step explanation:

2x+3y=23 2x+3.7=23 2×1 + 3×7 = 23

3y= 23 2×+21= 23 2 + 21 = 23

23÷3 = 7 2x= 23-21

y=7 2x= 2

x= 1

5x+3y=17 5×4+3y=17

5x=17+3 20+3y=17

5×=20 20=17+3y

14÷5 = 4 20=20+y

x=4 y=20-20

y=0

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who walks at a faster rate: someone who walks 60 feet in 10 seconds or someone who takes 5 seconds to walk 25 feet?

Natasha2012 [34]

Answer:

Someone who walks 60 feet in 10 seconds

Step-by-step explanation:

It takes someone else 5 seconds to walk 25 feet.

25 feet x 2 is 50 feet.

5 seconds x 2 is 10 seconds.

That means that person is walking 50 feet per second, and 50<60.

I hope this helps!

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3 years ago

The perimeter of a rectangle is 200 yards. What are the dimensions of the rectangle if the length is 60 yards more than the wid

puteri [66]

Answer:

L=80

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Step-by-step explanation:

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3 years ago

Evaluate each expression for g = -7 and h = 3 and match it to its value.

Molodets [167]

The given expressions are solved and matched

<h3><u>Solution:</u></h3>

To match the given expressions we need to solve the expressions with the given values of g and h and find their value.

Given that g = -7 and h = 3

$\begin{array}{l}{\text { 1) } g+h=-7+3=-4} \\\\ {\text { 2) } g-h=-7-3=-10} \\\\ {\text { 3) } h-g=3+7=10} \\\\ {\text { 4) } g h=-7 \times 3=-21} \\\\ {\text { 5) } g+h^{2}=-7+3^{2}=-7+9=2} \\\\ {\text { 6) } g^{2}-h=(-7)^{2}-3=49-3=46}\end{array}$