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2 years ago

Solve for x 15x+5x 14x-6

Mathematics

1 answer:

ValentinkaMS [17]2 years ago

8 0

Look at the picture.

[tex\alpha+\beta=180^o[/tex] - supplementary angles

Therefore we hve the equation:

$(14x-6)+(15+5x)=180\\\\(14x+5x)+(-6+15)=180\\\\19x+9=180\qquad\text{subtract 9 from both sides}\\\\19x=171\qquad\text{divide both sides by 19}\\\\\boxed{x=9}$

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In making a fruit punch for a party, you mixed 1⁄2 gallon of grape juice with 3⁄4 gallon of orange juice. How many gallons of pu

weqwewe [10]

This is very simple.

2/4 (or 1/2) + 3/4 = 5/4 gallons of punch

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2 years ago

Read 2 more answers

James is 8 years old. Last year, his father was 4 times as old as he was. In how many years' time will their combined age be 51?

Snowcat [4.5K]

Last year He was 7 years old.

His father is 4 times the age 7 x 4 = 28

Last year his dad was 28, so this year he is 29.

Combined age this year = 29 + 8 = 37

51 - 37 = 14 years

14/ 2 people = 7 years

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It will take 7 years.

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2 years ago

To get a B in math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests were 82,74,82,and 74.Wha

motikmotik

Answer:

88 score.

Step-by-step explanation:

Given:

To get a B in math, Alexandria Pappas must<u> average 80</u> on five tests.

Scores on the first four tests were <em>82, 74, 82, and 74.</em>

Question asked:

What is the lowest score that she can get on the last test and still get a B?

Solution:

Let lowest score she can get on the last test = $x$

As we know:

$Average=\frac{Sum\ of \ observations}{Number\ of\ observations}\\ \\ 80=\frac{82+74+82+74+x}{5} \\ \\$

By cross multiplication:-

$80\times5=312+x \\ \\400=312+x\\Subtracting\ both\ sides\ by\ 312\\400-312=312-312+x\\88=x$

Thus, she can get 88 score on the last test to get a B in math.

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3 years ago

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The greatest common factor of 10 is 10 and the least common factor of 15 is 15
Hope I helped!!!!!

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2 years ago

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