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2 years ago

The width of a rectangle is 1/3 its length, l .

1 answer:

5 0

The correct expression for perimeter is 2(l+1/3l). If you solve this for 56; 2(l+1/3l) = 56. You find that l = 21. If l = 21, then the width is 7, and Area = l * w, so the area of the rectangle is 147 square inches.

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A recipe for bread calls for 4 1/4 cups of flour. Which expression gives the number of cups of flour needed if you want to make

lubasha [3.4K]

We know that It calls for 4 1/4 of flour

We have to multiply

What is 4 1/4 * 3 1/2= 14 7/8

You need 14 7/8 cups of flour to make 3 1/2 batches
Hope this helped!

4 0

2 years ago

Read 2 more answers

An equilateral triangle has a perimeter of 48 cm. What is the area?

KiRa [710]

Answer:

$A=64\sqrt{3}\ cm^2$

Step-by-step explanation:

we know that

An equilateral triangle has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

The perimeter is equal to

$P=3b$

where

b is the length side of the equilateral triangle

we have

$P=48\ cm$

substitute

$48=3b$

solve for b

$b=48/3\\b=16\ cm$

Find the area

The formula of area applying the law of sines is equal to

$A=\frac{1}{2}b^2sin(60^o)$

substitute the value of b

$A=\frac{1}{2}(16)^2sin(60^o)$

$sin(60^o)=\frac{\sqrt{3}}{2}$

$A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})$

$A=64\sqrt{3}\ cm^2$

6 0

2 years ago

A small town wants to compare the number of students enrolled in public and private schools. The polynomials below show the enro

Zolol [24]

Answer:

-19c2

Step-by-step explanation:

6 0

2 years ago

PLS HELP ME 50 POINTS!!!!! I NEED AN ANSWER ASAP!!!!!!

Sholpan [36]

Answer:

They went up 16 levels.

Step-by-step explanation:

You can find that by finding the distance from -2 to 14.
To find the distance from two numbers, $a$ and $b$ , we can substitute both in the formula $d = |b - a|$ , where d is the distance between them.