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3 years ago

Select True or False.

Mathematics

2 answers:

Vlad1618 [11]3 years ago

8 0

Answer:

true

Step-by-step explanation:

3x -4(2x-5)

3x-8x+20

5x+20

nikdorinn [45]3 years ago

5 0

Answer:

true

Step-by-step explanation:

$3x - 4(2x - 5) = \\ 3x - 8x + 20 = \\ - 5x + 20 = \\ 20 - 5x = > \: true$

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Please help solve this. (Answer is not 80)

blondinia [14]

Answer:

Step-by-step explanation:

180 -(60+65) = 180 - 125 = 55

180 - (50 + 55) = 180 - 105 = 75

180 - (35 + 75) = 180 - 110 = 70

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3 years ago

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MissTica

The answer is A - 5.

7 0

4 years ago

Gage's math teacher entered the seventh-grade student in a math competition. There was an enrollment fee of $30 and also $11 cha

Amanda [17]

Answer:

110 test

Step-by-step explanation:

Let

x ----> the number of packet of 10 test

y ----> the total cost

we know that

The number of packet of 10 test purchase multiplied by $11 plus the enrollment fee of $30 must be equal to $151

The linear equation that represent this scenario is

$y=11x+30$

we have

$y=\$151$

substitute

$151=11x+30$

Solve for x

subtract 30 both sides

$11x=151-30$

$11x=121$

Divide by 11 both sides

$x=11$

The number of packets purchase was 11

To find out the number of test, multiply the number of packets by 10

$11(10)=110\ test$

4 0

3 years ago

Can you help on word problems?

Ne4ueva [31]

Uh sure if you give me the problem I could help

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3 years ago

Compute the norm of v when v = (-8,7,4)

dexar [7]

Answer:

the norm of V = =11.357816691601..

Step-by-step explanation:

$\left\vert \overrightarrow{V} \right\vert =\sqrt{\left( -8\right)^{2} +\left( 7\right)^{2} +\left( 4\right)^{2} }$

$=\sqrt{64+49+16}$

$=\sqrt{129}$

$=11.357816691601...$

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2 years ago