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Tanzania [10]
3 years ago
14

I can’t solve this. Please explain!

Mathematics
2 answers:
babunello [35]3 years ago
6 0
Sorry I can’t help....
stepan [7]3 years ago
6 0
I can’t help you soory
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Mark’s Pool Repair charges $50 for a service call, plus $40/h for labour. Jennifer’s Pools and Spas charges $30 for a service ca
tatyana61 [14]

Multiply each hourly rate by x ( time to complete the work) add it to the service call for each and then set the equations equal:

50 + 40x = 30 +45x

Subtract 30 from both sides:

20 + 40x = 45x

Subtract 40x from both sides:

20 = 5x

Divide both sides by 5

x = 4

The length is 4 hours.

3 0
3 years ago
The missing number in the series?
RoseWind [281]
A)48

Explanation:

2^3 - 2^2 = 8 - 4 = 4
3^3 - 3^2 = 27 - 9 = 18
4^3 - 4^2 = 64 - 16 = 48
5^3 - 5^2 = 125 - 25 = 100
6^3 - 6^2 = 216 - 36 = 180
7^3 - 7^2 = 343 - 49 = 294
8^3 - 8^2 = 512 - 64 = 448
7 0
3 years ago
Please help thank you
Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

B

3 0
3 years ago
There are 300 students. for every 8 are boys, and for every seven are girls. how many boys?
katen-ka-za [31]
8+7=15
300/15=20
8 x 20 =160 Boys
7 x 20 = 140 girls

140 + 160 = 300

Hope this helps!

4 0
3 years ago
What is C/a + 4 when a=2, and c= 10
tigry1 [53]

Answer:

4 and 10/2 so actually 9

Step-by-step explanation:

6 0
3 years ago
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