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nirvana33 [79]
3 years ago
15

Two mechanics worked on a car. First mechanic worked 20 hours, and the second worked 5 hours. Together the charged $1800. What w

as the rate charge by each if the some of both rates was 135 per hour?
Mathematics
1 answer:
kipiarov [429]3 years ago
6 0

Answer:

Step-by-step explanation:

let one charge=x

second charge=135-x

20x+(135-x)5=1800

4 x+135-x=360

3x=360-135=225

x=75 $

first charges $ 75 for 20 hours

second charges =135-75=$60 for 5 hours.

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10 km, 7 km, 13 km<br> Is the triangle acute, right, or obtuse
LiRa [457]

Answer:

The triangle is acute.

Step-by-step explanation:

This is because each side is less than 90 degrees which would make the angles acute which would make the whole triangle acute.

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3 years ago
A student measured the dimensions of a table and recorded the length as 103.50cm and the width as 73.75cm. according to the stud
PolarNik [594]
The table is usually the shape of a rectangle. The area is equal to the length times the width. To make sure, let's recalculate the solution.

Area = length × width
Area = 103.50 cm × 73.75 cm
Area = <span>7,633.125 cm</span>²

So, we established that the answer is correct. Now, I'll introduce the concept of significant figures. There are rules regarding significant figures to be applied conventionally in measurements and calculations. This is to increase precision of the data. Significant figures are digits that carry meaning. When you are given data with a specific number of significant figures, the final answer should also contain the same number of significant figures. In convention, the rule says that the zero's after non-zero digits after the decimal point are significant. Also, all non-zero digits are significant. The value 103.50 has 5 significant figures, and 73.75 has 4. When it comes to multiplication, the answer should contain the least significant figures. So, we should have 4 significant figures. Therefore, the final answer to be reported should be 7,633 cm².
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3 years ago
A kangaroo can jump 6 times the length of its body. For a kangaroo that is 5 feet long, how many feet can it jump? *
Sindrei [870]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
HELP QUICK THIS IS DUE IN FIVE MINUTES!!!!!
Komok [63]
2 x (5-2)^3
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3 years ago
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let the number be X

6x-19.85=29.77

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