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Rufina [12.5K]
2 years ago
10

Volunteers at Sam's school use some of the student council's savings for a special project. They buy 3 backpacks for $7 each and

fill each backpack with paper and pens that cost $6. By how much did the student council's savings change because of this project?
The savings was changed by
dollars.
Mathematics
2 answers:
Black_prince [1.1K]2 years ago
7 0
The student councils savings decreased by $39.
nydimaria [60]2 years ago
3 0

Answer:

Sam's student council spent $39 on backpacks + paper and pens.

Step-by-step explanation:

They bought 3 backpacks for $7 each. 3 x 7 = $21.

They also filled those backpacks with paper and pens costing $6 each. 3 backpacks x $6 = $18.

Now, add the two prices.

18 + 21 = 39

<em>hope this helps :)</em>

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Oksi-84 [34.3K]

Answer:

[See Below]

Step-by-step explanation:

❶ It is irrational because to make it repeating it must be <u>EXACT</u>. In this case it is adding a 0 after every 1. So it'd be irrational since it doesn't have an end.

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~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

3 0
3 years ago
What is the area of the right triangle 5 centimeters high with a base of 9 centimeters
seropon [69]

The area of the given right triangle is: 22.5 cm².

<h3>How to Find the Area of a Right Triangle?</h3>

The area of a right triangle with a base of "b" and an height of "h" can be determined using the following formula:

Area of triangle = 1/2bh = 1/2(base)(height).

Given that the right triangle has the following dimensions:

Height (h) = 5 cm

Base (b) = 9 cm

Area of triangle = 1/2bh = 1/2(5)(9)

Area of triangle = 1/2(45)

Area of triangle = 22.5 cm²

Thus, the area of the right triangle is: 22.5 cm².

Learn more about the area of triangle on:

brainly.com/question/21735282

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8 0
1 year ago
&lt; ADF measures 2x degrees and &lt; FDC measures x + 12 degrees. What is the measure
gtnhenbr [62]

Answer:

<h2>Angle ADF is equal to 52° and angle FDC is equal to 38°.</h2>

Step-by-step explanation:

In the image attaches, you can observe that angles ADF and FDC are complementary angles, because they sum 90°.

\angle ADF + \angle FDC = 90\°

And we know that

\angle ADF=2x\\\angle FDC = x+12

Replacing these expressions, we have

2x+x+12=90\°\\3x=90\° - 12\°\\x=\frac{78}{3}\\ x=26

Then, we replace this value in each expression to find both angles measures.

\angle ADF= 2(26)=52\°\\\angle FDC = 26+12=38\°

Therefore, angle ADF is equal to 52° and angle FDC is equal to 38°.

7 0
2 years ago
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GREYUIT [131]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Rolls are being prepared to go to grocery stores. Divide 72 rolls into 2 groups so the ratio is 3 to 5.
tekilochka [14]
To do this, nice it to add 3 and 5, then divide 72 by the result of sum 3 and 5. Finally multiply it by 3 and by 5 to get the result.
Lets do this
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8 0
3 years ago
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