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Bad White [126]
3 years ago
8

Simpligy the expression 7(x+7)-3(x+3)

Mathematics
1 answer:
Irina18 [472]3 years ago
6 0

We will use the distributive property, where a(b+c) = ab+ac and a(b-c) = ab-ac.

7(x+7)-3(x+3)

=7x+49-(3x+9)

=4x+40

Therefore, the simplified expression is 4x+40.

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The answer would be $6.49.
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Answer:

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Step-by-step explanation:

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To find the total cost, multiply the cost per pound ($3.20) with the amount of pounds Sara is going to buy (4):

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~

3 0
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I’m confused on this question, please help me. (Ignore the black coloring, sorry.)
neonofarm [45]
To answer this question you will find out the total number of cupcakes donated and then calculate the amount of each flavor based on the percentage that is stated.

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1. 12 x 10 x 12 (12 classes each donating 10 dozen) = 1440

2. 0.55 x 1440 (55% are chocolate) = 792 chocolate

3. 1440 - 792 (the remaining number of cupcakes)=648

4. 1/3(33 1/3%) x 648 = 216 red velvet

5. 1440 - 792 (chocolate) - 216 (red velvet) = 432 vanilla cupcakes

Chocolate-792
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3 0
3 years ago
Two friends argue over who brushes their teeth more often. Who is more likely to brush both morning and evening? Assume all even
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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