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yaroslaw [1]
2 years ago
9

Use the working backward method to find the solution of the equation.

Mathematics
2 answers:
shusha [124]2 years ago
4 0
Y=2 explanation because -1 on both sides divide both sides by 7
Dahasolnce [82]2 years ago
3 0

Answer:

y=2

Step-by-step explanation:

7y-1=13

+1 +1

7y=14

/7 /7

y=2

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At the movie theater, child admission is $5.20 and adult admission is $8.50. On Wednesday, 124 tickets were sold for a total sal
kozerog [31]

Answer:

75

Step-by-step explanation:

assuming that all are children(answer will be adult ticket at the end)

124×5.20=644.8

872.5-644.8=227.7

8.50-5.20=3.30

227.7÷3=75.9=75 tickets(no decimal cause tickets are sold as a whole)

5 0
3 years ago
A school custodian waxed a gymnasium floor that measured 20feet by 20 feet. How many square feet did she have to wax
Aleks04 [339]

Here the dimension of the waxed gymnasium floor is given which is 20 feet by 20 feet. It means the floor is of square shape . And we need to find how many square feet she have to wax. Here square feet is given, which means we have to find the area. SO we need to find the area of the gymansium floor . And area of square is side square. So area of gymnasium floor = 20 ft times 20 ft = 400 square feet .

8 0
3 years ago
Arrange in ascending order :
Musya8 [376]

Answer:  1/4, 4/7, 5/8

Step-by-step explanation:  There are three ways:

1.  <u>Convert each to a decimal: </u>

 1/4 = 0.25

 4/7 = 0.571

 5/8 = 0.625

2.  <u>Convert to a common denominator:</u>

 It looks like we can multiply each by a whole number that will result in a denominator of 56:

 1/4 *(14/14) = 14/56

 4/7*(7/7) = 35/56

 5/8 *(8/8) = 32/56

Now they can be directly compared to get the answer.

3.  <u>Estimate the values.  </u>

5/8 is clearly larger than 1/4.  4/7 is somewhere in between.  Therefore, 1/4, 4/7, 5/8

8 0
2 years ago
Read 2 more answers
How do you find the Median of a set of numbers.
Komok [63]

Answer:

Arrange your numbers in numerical order.

Count how many numbers you have.

If you have an odd number, divide by 2 and round up to get the position of the median number.

If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.

Step-by-step explanation:

4 0
3 years ago
Write four equivalent expressions for 3(6m+3)
Vadim26 [7]
1st. 18m+9
2nd. 3(3+6m)
3rd. 9+18m
4th. 3(6m+3)
5 0
3 years ago
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