Mathematics High School

a rectangle has a perimeter of 158 cm and the given area of 804 cm^2 Its length is 7 more than five times its width. Write and solve a system of equations to find the dimensions of the rectangle.

Answers

Answer 1
so i'm using the letter l for length w for width p for perimeter and a for area


l = 5w + 7
a = (5w+7) x w

p =2(5w+7) + 2w
= 10w + 14 +2w
p = 12w + 14
158cm = 12w + 14
12w = 144
w = (144/12) = 12

l = 5w + 7
so 5 x 12 + 7 = 67

width = 12cm length = 67cm

proven: area = 804cm^2 which is 12 x 67

hopes that u can understand my workings and that this helps :)


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Answers

Answer:

D) because the sum of two sides must be greater than the third side

Step-by-step explanation:

in this 10+14=24 which is not greater than 26

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Answers

Answer:

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Answers

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Step-by-step explanation:

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Step-by-step explanation:

If f(x) = x^2 and g(x) = 5x, then

f(g(x)) = (5x)^2 = 25x^2

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Answers

1. 2x^2-x-15=0
A = 2
B = -1
C = -15

2. 10^2-2x=0
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C = 0

3. x^2–3x-40=0
A = 1
B = -3
C = -40

4. x^2+3x-2=0
A = 1
B = 3
C = -2

5. 4x^2-17x+8=0
A = 4
B = -17
C = 8

Remember the equations should look like Ax^2+Bx+C=0 (in this order!!)

1 point
The speed of light is about 3 . 10^8 meters/second. How far is a lightyear?
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Answers

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AB=
Round your answer to the nearest hundredth.
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Answers

Answer:

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

8. Bir sınıftaki öğrenciler sıralara ikişerli oturduğunda 3 öğrenci
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Buna göre sıra sayısını veren denklem hangi seçenekte
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B) 2x + 3 = 3x - 1
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​

Answers

Answer:

cvp B çünkü o iki kavram birbiriyle eşit

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Answers

Answer:

48 cups

Step-by-step explanation:

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Answer:

48 cups

Step-by-step explanation:

there are apx. 16 cups of milk in one gallon.

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HELP PLS ASAP



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a = -12

Remember that when a variable is times with a number, you divide the number on both sides.

When a variable is divided by a number, you multiply the number on both sides.

Hope this helps you. Thank you !!

Which pair of expressions has equivalent values?
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Answers

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Answers

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Step-by-step explanation:

boom roasted.

I NEEEED YOUR HELP DOES ANYONE KNOW HOW TO COMPLETE THISSS

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Step-by-step explanation:

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um ok first you spell that wrong and put firat

Step-by-step explanation:

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Answers

MY WORK:

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The middle rectangle: 12 ( 6 times 2 )

The top rectangle: 8 ( 4 times 2 )

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My apologies if this is wrong but I hope I helped a little bit!

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Answers

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The tree will keep growing each year 3 feet.

Answer:

Your Answer is When the number of years increases, the number of feet increases

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Answers

Just a guess Bc I’ve no idea what you’re talking abt, but 3. Would set 30/6 and 15/y cross multiply, solve for y and get y =3
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Answers

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i think you have written wrong equation

Step-by-step explanation:

quivaler
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Help me please explain how you did it too

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have a great day.

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Answers

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