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balandron [24]
3 years ago
7

What is the first step to solving the following equation?5x –11 = 42

Mathematics
1 answer:
alexdok [17]3 years ago
3 0

Answer:

add the 11 to both sides to cancel it out.

Step-by-step explanation:

so basically

5x - 11 + 11 = 42 +11

5x = 53

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A movie theater sold 800 tickets and made $4400 in one night. If an adult ticket costs $8 and a children's ticket costs $4, how
zhenek [66]
Let x = adult tickets
Let y = children's tickets

x + y = 800
8x + 4y = 4,400

From the first eq, x = 800 - y, plug this in to the second eq
8(800-y) + 4y = 4,400
6400 - 8y + 4y = 4,400
2000 = 4y
500 = y

x = 800 - 500
x = 300

300 adult tickets were sold.
4 0
3 years ago
To thase who missed the other ones 4+5-6/7*8-7
hoa [83]

Answer:

-6.67 im pretty sure

Step-by-step explanation:

4+5=9

9-6=3

3/7=0.43

0.43-7=-6.67

the calculator says sum else but like who cares right? lol

4 0
3 years ago
Read 2 more answers
What is the value of c? <br><br> 50<br><br> 100<br><br> 84
kkurt [141]
THE VALUE C IS NUMBER 4 WHICH IS 84 DEGREES WHICH IS AND OBTUSE ANGLE 
4 0
3 years ago
Read 2 more answers
The length of a rectangle is 3 times the width if the area is 147 what is the perminer
spayn [35]
Formula for are of a rectangle:
        A =L * W
1st isolate W
   147 = 3W * W
   147 = 3W^2
divide 147 by the by 3 on bot sides
    29 = W^2
get ride of the square by square rooting on both sides
     7 = W

2nd find the perimeter
    P = 2(7) + 2(21)
    P = 14 + 42
    P = 56
7 0
3 years ago
Mr. Williams is building a sand box for his children. It cost $228 for the sand if he builds a regular-sandbox with dimensions 9
erastovalidia [21]

Answer:

It will cost $512.73

Step-by-step explanation:

9 in by 6 in sandbox cost $228

i.e., 9*6 = 54 in²

54 in² cost $228

1 in² will cost $228/54

≈ $4.22

If the new dimension is 13 1/2 in by 9 in

then area will be 13 1/2*9

27*9/2 = 121.5 in²

The cost of 121.5 in² will be

121.5*4.22 = $512.73

3 0
3 years ago
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