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Irina-Kira [14]
3 years ago
7

 Divide 1 hour in the ratio 1 : 9 : 10

Mathematics
1 answer:
olganol [36]3 years ago
5 0

Answer:

3 minutes; 27 minutes; 30 minutes

Step-by-step explanation:

Let the common multiplier of the given ratios be x. So, the ratios 1: 9 : 10 will become x, 9x and 10x respectively.

Therefore,

x + 9x + 10x = 1 \: hour \\  \\ 20x = 60 \: minutes \\  \\ x =  \frac{60 \: minutes}{3}   \\  \\ x = 3 \: minutes \\  \\ 9x = 9 \times 3 = 27 \: minutes \\  \\ 10x =  10 \times 3 = 30 \: minutes

Thus, 1 hour in the ratio 1 : 9 : 10 can be divided as:

3 minutes; 27 minutes; 30 minutes

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Answer: 6 hours

Step-by-step explanation:

Taylor cannot spend over $260.

Subtract the cost of the part needed for the repair:

= 260 - 80

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As the labor costs $30 and now she cannot exceed $180 for labor, the total number of hours the mechanic can work is:

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3 years ago
Find the area and perimeter of each composite figure use 3.14 for pi round your answer to the nearest 10th
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1. Perimeter is 3 + 3 +3 +4 +5 = 18 feet

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   Area = 3*.5 = 1.5, 3*2=6,  6+1.5 = 7.5 square meters

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4. surface area = 2*π*6*20+2*π*6^2= 980.2 yards

Volume = π*6^2*20 = 2261.9 cubic yards

5.surface area = 2*(9*7+2*2+2*9) = 190 cm

 Volume = 2*7*9 = 126 cubic cm

6. surface area = <span>2*(11*11+11*11+11*11) = 726 mm</span>

<span>  Volume = 11 *11*11 = 1331 cubic cm</span>


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Please help!! ASAP!!!!
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