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Morgarella [4.7K]
4 years ago
11

33=-2a+7 equation and inequalities

Mathematics
2 answers:
dem82 [27]4 years ago
4 0
Subtract 7 from both sides leaving you with
26=-2a
Divide -2 from both sides leaving to you then with
-13=a and this is the answer

ser-zykov [4K]4 years ago
3 0

Answer:

(-13 = a) or (a = -13)

Step-by-step explanation:

33 = -2a + 7

-7            -7

26 = -2a

26 ÷ -2    -2a ÷ -2

-13 = a

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A movie is 17/8 hours long after 45 minutes how much time is left
Luda [366]

Answer:

82.5 minutes

Step-by-step explanation:

We have to figure out how many minutes are in 17/8 hours.  17/8 = 2 1/8 hours.  We know that 2 hours is 120 minutes.

1/8hours x 60 min = 7.5 minutes.

120 + 7.5 = 127.5 minutes then subtract out 45.  That leaves 82.5 minutes.

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1 year ago
What is the median for the data set? 978, 988, 994, 905, 964, 971, 928, 910, 984, 994
tekilochka [14]
974.5 is the answer to what you are trying to solve


4 0
3 years ago
PLEASE ANSWER QUICK!!! 30 POINTS
shusha [124]

Answer:

Solution given;

<ABD=<BAC+<ACB

<u>Since</u><u> </u><u>exterior</u><u> </u><u>angle</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>triangle</u><u> </u><u>is</u><u> </u><u>equal</u><u> </u><u>to</u><u> </u><u>the</u><u> </u><u>sum</u><u> </u><u>of</u><u> </u><u>two</u><u> </u><u>opposite</u><u> </u><u>interior</u><u> </u><u>angle</u>

26x+20=19x-15+9x+25

solve like terms

26x+20=28x+10

subtracting both by 10

26x+20-10=28x+10-10

Subtracting both side by 26x

10=28x-26x

2x=10

dividing both side by 2

2x/2=10/2

x=5

Now

<ABD=26*5+20=l50°

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4 0
3 years ago
Read 2 more answers
The area of a rectangle is x^2−4/2x in^2 and its length is (x+2)^2/2 in. What is the width in inches?
lara31 [8.8K]

Answer:

The answer to your question is  Width = \frac{x - 2}{x + 2}

Step-by-step explanation:

Data

Area = (x² - 4)/2 x in²

Length = (x + 2)² / 2 in

Width = ?

Process

1.- Write the formula of the area of a rectangle

     Area = length x width

-Solve for width

     Width = Area / length

2.- Substitute the values

     Width = (x² - 4)/2 / (x + 2)² / 2

-Simplify

     Width = (x² - 4) / (x + 2)²

-Factor both numerator and denominator

      Width = (x - 2)(x + 2) / (x + 2)(x + 2)

- Simplify

      Width = (x - 2) /(x + 2)  or Width = \frac{x - 2}{x + 2}

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3 years ago
A ball is thrown vertically so that its height above the ground after t
Alina [70]
Answer is below.......

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3 years ago
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