How do you do question number 20 and 21 and 22

Answers

Answer 1

Answer: x+2y= 23
2y=-x+23
y= $(-1)/(2) x+ (23)/(2)$

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The cheerleaders are making a banner that is 8 feet wide. The length of the banner is 1 1/3 times the width of the banner. How long is the banner?

Answers

The banner is around 10.6 feet. It's because all you need to do is to divide 8 by 3, and then add it with 8 times 1 (since it's 1 1/3 times the width of 8 feet). Once you add up the two answers that we first got, you will be able to get 10.66666, or just simply 10.6 feet.

Which is the value of this expression when a=5 and k=-2

Answers

The answer is C. Hope this helps!

C) 25/9

I just took the quiz on edge

Solve the equation 6/7x-11/42=1/7x-5/6

Answers

6/7x-11/42=-1/7x-5/6x-11/42=-5/6x=-4/7

In a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches. What is the length of the other leg in inches?

Answers

Solutions

To solve this problem we have to use the Pythagorean theorem. You can only use the Pythagorean theorem in Right Triangles. The longest side of the triangle is called the "hypotenuse". C² is the longest side so it is the hypotenuse . To calculate c² we have to do α² + β² = c².

Given

In a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches.

$c^2 = 20 in$

$a^2 = 15 in$

$b^2 = Unknown$

------------ Calculations

$b^2 = c^2 - a^2$

$b^2 = c^2(20) - a^2(15)$

$b^2 = 400 - 225$

$b^2 = 175$

$b = √(175)$

$b = 13.2287565553$

What value is equivalent to 13 − 2(1 − 15) ÷ 4?A) -38.5
B) -26
C) 7.25
D) 20

Answers

Answer:

D 20

Step-by-step explanation:

13 − 2(1 − 15) ÷ 4

PEMDAS says parentheses first

13 − 2(-14) ÷ 4

Then multiply and divide from left to right

13 +28 ÷4

13+7

Then add and subtract

Answer:

D. 20

Step-by-step explanation:

Follow PEMDAS

- Hope that helps! Please let me know if you need further explanation.

A certain field is a rectangle with a perimeter of 940 feet. the length is 190 feet more than the width. find the width and length of the rectangular field.

Answers

$140 + 330$

$90 + 280$

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