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3 years ago

7b ÷ 12 = 4.2 What is b?

Mathematics

2 answers:

BlackZzzverrR [31]3 years ago

7 0

7b / 12 = 4.2

4.2 * 12 = 50.4

50.4 / 7 = 7.2

saw5 [17]3 years ago

5 0

$\frac{7b }{12} = 4.2 \ \ /*12 \\ \\7b=4.2*12\\ \\7b= 50.4 \ \ \/:7\\ \\\frac{7}{7} \ b= \frac{50.4 }{7}\\ \\b= 7.2$

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Mice21 [21]

B is the correct answer. If you use the distributive property correctly you will see why.

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3 years ago

MULTIPLE CHOICE QUESTION

Lostsunrise [7]

Answer: C. 4

Step-by-step explanation:

First, we can prime factorize 52.

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13 is not a square number, but 4 is a square number because it equals 2 squared.

Therefore, the correct answer is C. 4

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2 years ago

Write the sum of the numbers as the product of their GCF and another sum.

8090 [49]

Answer:

See explanation

Step-by-step explanation:

1. Find the GCF of 40 and 44:

$40=\underline{2\cdot 2}\cdot 2\cdot 5\\ \\44=\underline{2\cdot 2}\cdot 2\cdot 11\\ \\GCF(40,44)=2\cdot 2=4$

So,

$40+44=4\cdot 10+4\cdot 11=4\cdot (10+11)$

2. Find the GCF of 13 and 52:

$13=\underline{13}\\ \\52=2\cdot 2\cdot \underline{13}\\ \\GCF(13,52)=13$

So,

$13+52=13\cdot 1+13\cdot 4=13\cdot (1+4)$

3. Find the GCF of 15 and 81:

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So,

$15+81=3\cdot 5+3\cdot 27=3\cdot (5+27)$

4. Find the GCF of 64 and 28:

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3 years ago

3(12)=2(y-1) *plzz answer my question*

Leona [35]

Step-by-step explanation:

3(12)=2(y-1)

36=2y-2

36+2=2y

38=2y(Divide both sides by two)

y=19

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3 years ago

Please no one is helping me I truly need help pls

vampirchik [111]

Answer:

104 cm^3

Step-by-step explanation:

2(1/2(6*4))+2(1/2(4*10)+(4*10)

2(1/2(24)+(2(1/2(40)+(40)

2(12)+2(20)+40

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104 CM^3

3 0

3 years ago