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Musya8 [376]
3 years ago
13

Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics
1 answer:
nevsk [136]3 years ago
8 0

Answer:

For every 7 books Ethan read, Sadie read 3 books.

Step-by-step explanation:

For every 21 books Ethan read, Sadie read 9 books.

Unsimplified Ratio = 21:9

21 and 9 have a common factor of 3.

Because 21 and 9 share a common factor we can simplify the ratio

21 / 3 = 7

9 / 3 = 3

The new ratio is 7 to 3

So for every 7 books Ethan read, Sadie read 3 books.

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aliina [53]

Answer:

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Step-by-step explanation:

the answer is 780

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3 years ago
Which best describes the angles of some parallelograms? A. Four obtuse angles B. Four acute angles C. Two acute and two obtuse a
anyanavicka [17]
Some parallelograms have 2 obtuse and 2 acute angles.  

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5 0
3 years ago
Let ƒ(x) = x^2 + 2x and g(x) = 2x. Evaluate the composition (ƒ ∘ g)(2).
FinnZ [79.3K]

Answer:

The answer is option D.

Step-by-step explanation:

f(x) = x² + 2x

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To find (ƒ ∘ g) wherever you see x in f(x) replace it with g(x)

That's

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= 4x² + 4x

Substitute 2 into the expression

That's

(ƒ ∘ g)(2) = 4(2)² + 4(2)

= 4(4) + 8

= 16 + 8

= 24

Hope this helps you.

7 0
4 years ago
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nata0808 [166]
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3 years ago
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