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Murljashka [212]

3 years ago

8

Erica scored 40 points on a test. This was 80% of the total possible score. Find the total possible score. (PLEASE SHOW THE STEP

S!!!)

1 answer:

OLga [1]3 years ago

5 0

40=80%
divide both sides by 4 and you have:
10=20%
There are 5 20s in 100 so you multiply both sides by 5 so it is:
50=100%

Hope this helps :)

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I need this to be in less than 5 minutes

sergij07 [2.7K]

Answer: the awnser is 9, 40, 41 mark me brainlist

Step-by-step explanation:

Sum of the squares of the two side = Square of longest side

a² + b² = c²

a)

So let's check 7, 24, 25

Is 7² + 24² = 25² ?

7*7 + 24*24

49 + 576

=625.

Let us perform the other side 25²

25² = 25 * 25 = 625

Therefore the left hand side = Right hand side.

Therefore 7, 24, 25 is a Pythagorean Triple

b)

Let's check 9, 40, 41

Is 9² + 40² = 41² ?

9² + 40²

9*9+ 40*40

81 + 1600

=1681

Let us perform the other side 41²

41² = 41 * 41 = 1681

Therefore the left hand side = Right hand side.

Therefore 9, 40, 41 is a Pythagorean Triple.

Read more on Brainly.com - brainly.com/question/1471164#readmore

4 0

3 years ago

A square technology chip has an area of 25 square centimeters how long is each side of the chip

grigory [225]

ANSWER

Each side of the chip is 5 centimeters long.

<u>EXPLANATION</u>

The chip is in the form of a square.

The formula for finding the area of a square is

$Area=l^2$

We were given in the question that, the area is 25 square centimeters. This means that,

$25=l^2$

We take the square root of both sides to get,

$\sqrt{25}=l$

$\Rightarrow 5=l$

Hence the length of the square technology chip is 5 centimeters

5 0

4 years ago

X+5/5=x+9/7 x equals?

satela [25.4K]

X+5/5=X+9/7
-X. -X
5/5=9/7
there is no solution

8 0

3 years ago

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Graph the image of the given triangle under a dilation with a scale factor of 1/4 and center of dilation (0, 0)

schepotkina [342]

Answer:

The image in the attached figure

Step-by-step explanation:

we know that

The dimensions of the image of the given triangle are equal to the original dimensions of the pre-image multiplied by the scale factor

In this problem the scale factor is 1/4

The height of the pre-image is 4 units

The base of the pre-image is 8 units

Find out the dimensions of the image

The height of the image is $(4)\frac{1}{4}=1\ unit$

The base of the image is $(8)\frac{1}{4}=2\ units$

The image in the attached figure

6 0

4 years ago

What is twenty six million four hundred five thousand twenty in standard form?

andrew-mc [135]

Answer:

26,405,020

Step-by-step explanation:

6 0

3 years ago

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