19. Frank and Jenny want to cut a plank for a sandbox they are making. If the plank is

Mathematics

1 answer:

elena-s [515]2 years ago

7 0

Answer:

it is 3 inches

3 x 4 = 12

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Unit rate of 14.25 for 3 pounds of deli meat

Neko [114]

To find the unit rate, you have to find how much each pound costs

so 14.25/3 is the expression that will get you the answer

14.25/3= 4.75

4.75 per pound is your answer

hope this helps

6 0

3 years ago

Read 2 more answers

What is one of the solutions to the following system of equations? y2 x2 = 53 y − x = 5 (−10, −5) (−7, −2) (7, 2) (5, 10).

Aliun [14]

The solution of the system of equation is (-7, -2).

<h2>Given</h2>

The system of the equations;

$\rm y^2 + x^2 = 53 \\\\y -x = 5$

From equation 1

$\rm y -x=5\\\\y = 5+x$

Substitute the value of y in equation 1

$\rm y^2+x^2=53\\\\(5+x)^2+x^2=53\\\\25+x^2+10x+x^2=53\\\\2x^2+10x+25-53=0\\\\2 x^2 + 10x - 28 = 0 \\\\Divide \ by \ 2 \ both \ side \ the \ equation\\\\x^2 + 5x - 14 = 0\\\\x^2-7x+2x-14=0\\\\x(x-7) + 2(x-7) =0\\\\(x-7) \ (x+2)=0\\\\x-7=0 \ \ x = 7\\\\x +2 =0 \ \ x=-2$