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tangare [24]
3 years ago
9

34) Apply the distributive property to simplify the expression. 5(3x − 7) A) 15x + 35 B) 15x − 35 C) −15x + 35 D) −15x − 35

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
8 0

Answer:

B. 15x-35

Step-by-step explanation:

We are asked to simplify the expression 5(3x-7) using distributive property.

Distributive property states that we can multiply a quantity to sum by multiplying each addend separately and then add the products as:

a(b+c)=a\cdot b+a\cdot c

Using distributive property, we will multiply 5 by 3x and -7 as:

5\cdot 3x-5\cdot 7

15x-35

Therefore, the simplified form of the given expression would be 15x-35 and option B is the correct choice.

Fofino [41]3 years ago
7 0

Answer:

Answer:

B.

Explanation:

If you want to multiply a parenthesis by a number, you simply distribute the number to all the terms in the parenthesis.

Step-by-step explanation:

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lutik1710 [3]

Answer:

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Step-by-step explanation:

B3=3B

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Answer:

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Explanation:

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6 0
3 years ago
Find the missing factor 2n^2(n-3)-4(n-3)=( )(n-3)
wariber [46]
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We presume your missing factor is
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7 0
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alukav5142 [94]
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7 0
3 years ago
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sally has 20 coins in her piggy bank,all dimes and quarters. The total amount of money is $3.05. How many of each coin does she
Dafna11 [192]
Let d = number of dimes, q = number of quarters 

<span>Sally has 20 coins in her piggy bank, so </span>
<span>d + q = 20 </span>

<span>The total amount of money is $3.05. </span>
<span>Use the value of each coin multiplied by its number to get total value </span>
<span>.10d + .25q = 3.05 </span>
<span>multiply everything by 100 to clear the decimal places </span>
<span>10d + 25q = 305 and </span>
<span>d + q = 20 </span>

<span>solve the second equation above in terms of either d or q - lets do d </span>
<span>d = 20 - q </span>
<span>sub that into the first equation </span>
<span>10d + 25q = 305 </span>
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<span>200 - 10q + 25q = 305 </span>
<span>15q = 105 </span>
<span>q = 105/15 = 7 </span>
<span>and from above </span>
<span>d = 20 - q = 20 - 7 = 13 </span>

<span>so, there are 13 dimes and 7 quarters </span>
<span>verify with orig problem </span>
<span>13 + 7 = 20, OK, and $1.30 + $1.75 = $3.05 
</span>
5 0
3 years ago
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