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My name is Ann [436]

3 years ago

7

HELP ASAP!! What is the unit rate for the situation in terms of centimeter/minute?

1 answer:

vesna_86 [32]3 years ago

4 0

The unit rate is 5cm per 1min

5:1

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The perimeter of an equilateral triangle is 77 inches more than the perimeter of a square, and the side of the triangle is 55 i

miv72 [106K]

Answer:

143 inches

Step-by-step explanation:

Let the triangle be $s$ inches long.

Then the perimeter of the equilateral triangle will be $s+s+s=3s$ inches.

Let the length of the square also be $l$ inches.

Then the perimeter is $4l$

It was given that the perimeter of the equilateral triangle is 77 inches more than the perimeter of the square.

So we can write the relation

$3s=4l+77$

$\Rightarrow 3s-4l=77..eqn1$

Also, the side of the triangle is 55 inches longer than the side of the square.

So we write $s=l+55$ or $l=s-55...eqn2$

We put equation (2) into equation (1) to get;

$3s-4(s-55)=77$

We expand the bracket to get;

$3s-4s+220=77$

$3s-4s=77-220$

$-s=-143$

$s=143$

Hence the triangle is 143 inches long.

8 0

3 years ago

Please help! :) (Whoever answers first I'll give Brainlest!)

Irina-Kira [14]

Answer:

87

Step-by-step explanation:

Do what's inside the paranethesis first

2+(9*3)=2+27=29

29*3=87

7 0

3 years ago

The combined area of two squares is 45 square centimeter each side of one square is twice as long as the side of another square

Roman55 [17]

Let $x$ be the side length of the small square. Then, the side length of the big square is $2x$ .

The respective areas are $x^2$ and $(2x)^2=4x^2$

So, the sum of the areas are $x^2+4x^2=5x^2$

We have

$5x^2=45 \iff x^2=9 \iff x=\pm 3$

We can't have negative lengts, so we choose $x=3$

So, the side length of the larger square is 6.

8 0

3 years ago

What is the area of the figure

BigorU [14]

Answer:

which one r u trying to do?

Step-by-step explanation:

6 0

3 years ago

,.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Bingel [31]

Answer:

what exactly is this question

Step-by-step explanation:

5 0

3 years ago