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Flura [38]
4 years ago
9

Machine A takes a hours to make 100 bolts, and machine B takes b hours to make 100 bolts. How many

Mathematics
1 answer:
Temka [501]4 years ago
4 0

Answer:

100(1/a + 1/b)

Step-by-step explanation:

Machine A takes a hours to make 100 bolts

  • Then machine A makes 100/a bolts in one hour

Machine B takes b hours to make 100 bolts

  • Then machine B makes 100/b bolts in one hour

<u>Two machines will make:</u>

  • 100/a + 100/b = 100(1/a + 1/b)

bolts in one hour

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faust18 [17]

Answer:

The overall change in temperature over the time period ∆T = -12.6°F

Step-by-step explanation:

Rate of change of temperature r = -2.8°F per hour

Time t = 4.5 hours

The overall change in temperature ∆T = Rate of change of temperature × time period

∆T = r × t

∆T = -2.8°F per hour × 4.5 hours

∆T = -12.6°F

The overall change in temperature over the time period is -12.6°F

Step-by-step explanation:

7 0
3 years ago
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Answer:

-54

Step-by-step explanation:

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3 years ago
The area of a playing card is 48 square centimeters. It is 8 centimeters tall. How wide is it?
il63 [147K]

Answer:6

Step-by-step explanation:

Area of a rectangle = length × width

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Breadth = ?

Area = 48

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8 × B = 48

Divide both sides by 8

B = 48 ÷ 8

B = 6

3 0
3 years ago
Preston drew a blueprint of an additional room he is planning to add to his house. On the blueprint, 1 centimeter is equal to 4
Yuri [45]
It would be 3 cm by 4 cm because you just divide the number of feet by 4.
7 0
3 years ago
If 5 x 5=X and 5 x Y=Y but X is not equal to Y but X times Y equals Y than what is X and what is Y
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Answer:

x=0 y=1

Step-by-step explanation:

if x equals 0 then itll automatically bew diferent

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