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pashok25 [27]
3 years ago
9

How do I solve this problem?

Mathematics
1 answer:
Brrunno [24]3 years ago
8 0
A. x=the cost of one lunch. 60.25=5x+3(x-5.25)

b. 60.25=5x+3x-15.75                    60.25+15.75=8x-15.75+15.75

 76=8x                  76/8=8x/8              9.50=x

A lunch is $9.50. If you are not sure, check my answers. Hope this helped.
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What's the error? Jerry says that a cube with edges that measure 10 cm has a volume that is twice as much as a cube with sides t
disa [49]
The quick way to dispute something like this is to simply do the calculation and then create a ratio. 

Cube One (Large Cube)
The formula for a cube is V = e^3 
e = the measurement of an edge. In this case.
e = 10 cm
V = e^3
V = 10^3 = 10*10*10
V = 1000 cm^3

Cube 2 (Small Cube)
V = e^3
e = 5 cm
V = 5*5*5
V = 125 cm^3

Ratio
Large Cube / Small Cube = 1000 / 125 = 8/1.

The difference in size is 8 to 1 not 2 to 1.

Explanation
He's right if he sticks to one side. The ratio of one side of the large cube to the small one is 2 to 1. But once you put that into the formula for volume, three sides are multiplied together and that 2 shows up everytime you multiply the sides together. 

4 0
3 years ago
A membership to the gym costs $25 per person in 1995. The membership cost has increased by an average of $6 per person for each
inysia [295]

Answer:

The cost of a gym membership would be 109

Step-by-step explanation:

2009-1995=14

thats how many years apart from each other

so its been 14 years $6 for each year so 14x6=84

so the regular price was $25 and went up 84 dollars last 14 years.

25+84=109 so the price of gym membership would be $109

6 0
3 years ago
Need help on this question anyone?
professor190 [17]

Answer:c


Step-by-step explanation:

24≥(0.75*32) any number 32 or smaller would make this true

24<32

7 0
3 years ago
Read 2 more answers
Pls help!
olga nikolaevna [1]

Answer:

$11.25

Step-by-step explanation:

1.25 × 9 = 11.25

6 0
2 years ago
Read 2 more answers
THIS IS ONE STEP EQUATIONS
loris [4]

Answer:

$48.56

Step-by-step explanation:

look, 2 friends each get $24.28. multiply by two for two friends: $48.56

5 0
2 years ago
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