Will give brqinlist if correct

Mathematics

1 answer:

BARSIC [14]4 years ago

5 0

Answer:

7 + 8x

Step-by-step explanation:

-11 + 2 (4x -1) + 6

=> -11 + 8x -2 + 6

=> -13 + 8x + 6

=> -7 + 8x

So, the simplified expression is 7 + 8x.

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1.)12.5+(-31.5)=<br>2.)-31.91+(-16.7)=<br>3.)1/6+(-11/12)+2/3=<br>4.)29+(-15.7)+(-31.05)=

Xelga [282]

1. = Step 1. Simplify Brackets and you get $12.5 - 31.5$ Step 2. Simplify and you get $-19
$ which is your answer.

2. = Step 1. Simplify Brackets and you get $-31.91-16.7$ Step 2. Simplify and you get $-48.61$

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4 years ago

A class has a total of 135 absences over 18 weeks. what is the mean number of absences per week?

Butoxors [25]

135 divided by 18 is 7.5 so I would guess 7 each week and maybe possibly 8 on some weeks

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4 years ago

What is the length of the altitude of the equilateral triangle below

ale4655 [162]

Using Sine.

Sine = Opposite / Hypotenuse

sin 60° = a / (6√3) But sin60° = √3/2

√3/2 = a/(6√3)

Cross multiply

2*a = 6√3 * √3

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2a = 6*3

a = 6*3/2

a = 3*3 = 9

Option E.

Hope this helps.

4 0

3 years ago

Colin has several bottles of water. Each bottle of water holds 3 cups. During the day, he drinks 7 cups of water. How many bottl

Natasha_Volkova [10]

Divide total cups he drank by the # of cups in each bottle.

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ANSWER: 3 bottles

Hope this helps! :)

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3 years ago

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aleksley [76]

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3 years ago