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xeze [42]
3 years ago
11

Anyone know this ? step-by-step please

Mathematics
1 answer:
Helga [31]3 years ago
3 0

Answer:

9.3

Step-by-step explanation:

substitute the given values for c and d into the expression

(0.9 × 15 ) - (2.1 × 2 )

= 13.5 - 4.2 = 9.3


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What is the answer?<br> Please and thanks
Paha777 [63]

59 is prime number so there's only 1 factor pair  of 59

1 and 59

Answer

1 and 59

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3 years ago
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The figures below are based on semicircles and squares. Find the perimeter and the area of each shape. Give your answer as a com
Nuetrik [128]
To find the area, move each semicircle to fill up the square, you'll see there are three squares, each with an area of 4*4=16, so the total area is 3*16=48
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perimeter of each semicircle: (1/2)π*4=2π
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3 years ago
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kipiarov [429]

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5 0
3 years ago
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A pump fills 25 of a tank in 23 hour. At this rate, how much of the tank will the pump fill in an hour?
Sophie [7]

60% or 3/5 of the tank will be filled in an hour.

The pump will fill 2/5 of the tank in 2/3 hours.

In order to find out how much of the tank will be filled in an hour, use direct proportion and assume portion of the tank that will be filled up in an hour is x.

<em>2/5 of tank        :            2/3 hours </em>

<em>x of tank            :             1 hour </em>

Cross multiply to get:

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x = 2/5 x 3/2

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In conclusion, 60% of the tank will be filled in an hour.

<em>Find out more at brainly.com/question/14336804.</em>

6 0
2 years ago
What is -6 to the negative third power
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(-6)^-3 is the same as
\frac{1}{(-6)^{3}}
Which is
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5 0
3 years ago
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