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3 years ago

I'm not sure how to solve the systems of equations problem below

Mathematics

1 answer:

Viefleur [7K]3 years ago

3 0

Solve the lower equation first

+12 on each side
7x=51
divide by 7
x=51/7

then use that to solve the upper equation

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allochka39001 [22]

Answer:

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3 years ago

Explain why 6^3x7^3=42^3 is correct.

Orlov [11]

Answer:

${6}^{3} \times {7}^{3} = {(6 \times 7)}^{3} = {42}^{3}$

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3 years ago

Read 2 more answers

I will give brainliest to one of the correct answers.

statuscvo [17]

Answer:

1. 7/41

2. 7/15

Step-by-step explanation:

1. Probability that it is a multiple of 6 given that it is a 2 digit number: There are 7 numbers that are a multiple of 6 and are 2 digits: 12, 18, 24, 30, 36, 42, and 48. There are 41 numbers that are 2 digits. So, it is 7/41

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3 years ago

Solve the equation : x^(2)+5=3(x^(2)-3)

Fittoniya [83]

Answer:

x = ± 2

Step-by-step explanation:

Given

x² + 5 = 3x² - 3 ( subtract x² + 5 from both sides )

0 = 2x² - 8 ( add 8 to both sides )

8 = 2x² ( divide both sides by 2 )

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x = ± $\sqrt{4}$ = ± 2

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3 years ago

Use the distributive property to simplify 0.75(3.5a-6b)

Studentka2010 [4]

(0.75 * 3.5a) + (0.75 * -6b) = 2.63a -4.5b

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3 years ago