Which of the following ratios is equivalent to 12/15

Answers

Answer 1

Answer:

4/5 because 12/15 was simplified using 3.

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Write an algebraic expression for 15 decreased by twice a number

Answers

15-2x= that would be the algebraic equation. Remember that decrease usually means minus. A number is always represented by a variable, and then anything that by is usually a multiplication or division depending on how its stated.

An algebraic expression is, obviously, an expression with a variable.

"A number" would represent a variable, which, in this case, we'll use y.

So, 15 decreased by twice x.
15 - y x 2 =

I hope this helped :)

Sandra has 46 fewer coins than martha. Sandra has 57 coins. A. How many coins does Martha have? B. How many coins do Sandra and Martha have?

Answers

Martha has 103 and together Sandra and Martha have 170 coins.

A. Martha has 103 coins.

B. Sandra 57+ Martha 103 = 160

What is the arc length of an angle of 7pi/6 radians formed on the unit circle?A) pi/6

B) 5pi/6

C) 7pi/6

Answers

Arc length is7 pi / 6.The distance between two places along a segment of a curve is known as the arc length.

How do you calculate the arc's length?

Using the formula Length of an Arc = r, where is in radians, one may determine the arc length of a circle given its radius and central angle. Arc length is equal to (r/180), where r is the radius in degrees.

The distance between two places along a segment of a curve is known as the arc length.

Remember that an arc is a section of a circle. The use of degrees is one method of arc measurement. An arc's length is equal to the length of the center angle it corresponds to.

Detailed explanation:

Angle * Radius = Arc Length (in radians)

arc length equals 1/7 pi/6

arc length = 7 pi / 6.

To learn more about Arc length refer to:

brainly.com/question/28108430

#SPJ2

Answer:

Step-by-step explanation:

arc length = radius * angle(in radians)

arc length = 1*7pi/6

arc length =7pi/6

Wat is the answer to5n-16-8n=-10

Answers

n=−2 is the answer and tell me if you need the steps

-3n-16=-10
-3n=-10+16
-3n=6
N=6/-3
N=-2

Question on circumference photo attached

Answers

A
as the radius is always half of the circumference to next time think first, what is the half of the circumference

Andy estimated that he would need 71 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 60 feet. What was the percent error of Andy's estimation?18.33%

15.49%

11%

84.51%