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kirza4 [7]
3 years ago
7

The formula = 21+ 2m is used when calculating:

Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0
I’m pretty sure it’s B) perimeter of a rectangle, I’m sorry if it’s wrong
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Last year the depth of the river was 4.2 feet deep. This year it dropped 25%. Find the depth of the river this year to cross it.
Novosadov [1.4K]

Answer:

The river is 3.15 feet deep.

Step-by-step explanation:

First let's recognize what we need to find: the depth of the river

We know last year the river was 4.2 feet deep, but it dropped 25%. This means we also need to find how much it dropped. To find this, we need to know what 25% of 4.2 is. Write an equation for this.

y = 25% of 4.2

y = 0.25 • 4.2

y = 1.05

This means that the river dropped 1.05 feet. To know its depth now, we need to subtract 1.05 from 4.2. Write an equation for this.

d = 4.2 - 1.05

d = 3.15

The river is 3.15 feet deep.

Hope this helps!

4 0
3 years ago
Simplify the expression below.<br> 13y + x - 7y
Otrada [13]

\text{Simplify:}\\\\13y + x - 7y\\\\\text{Combine like terms}\\\\13y + x - 7y\\\\6x+y\\\\\text{Since you can't combine anything else, that will be your answer}\\\\\boxed{6y+x}

4 0
3 years ago
Read 2 more answers
You have 80 oz of egg noodles. You need 5 oz to make one serving of chicken noodle soup.
Colt1911 [192]
I believe that you can make at most 16 bowls of chicken noodle soup. Of course that’s what I think you are asking.
6 0
3 years ago
Find the least common denominator for these two rational expressions 7/n^2 -8/7n
lianna [129]

Answer:

7n²

Step-by-step explanation:

7/n² - 8/7n

Least common multiple will be the least common denominator

L.C.M = 7n²

Dividing the L.C.M by denominators and multiplying with numerators;

((7×7) - (n×8))/7n²

= (49 - 8n)/7n²

7n² is the least common denominator

8 0
3 years ago
Solomon graphs a point on the coordinate plane. Which point did Solomon graph?
Mkey [24]

Answer:

Try your best! I know you can do it!

5 0
3 years ago
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