3 years ago

What is the answer to 8-(-9)+(-3)-5-12

Mathematics

1 answer:

Alexus [3.1K]3 years ago

8 0

Answer:

-3

Step-by-step explanation:

as shown in the picture

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3 years ago

The admission fee at a zoo is $2 for children and $4 for adults. If 1800 people enter the zoo and $6000 is collected, how many a

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Answer:

The number of adults is $1,200$

Step-by-step explanation:

Let

x------> the number of children

y------> the number of adults

we know that

$x+y=1800$ -------> equation A

$2x+4y=6000$ -------> equation B

Multiply equation A by $-2$

$-2(x+y)=-2*1800$ --------> $-2x-2y=-3600$ ------> equation C

Adds equation B and equation C

$2x+4y=6000\\-2x-2y=-3600\\---------\\4y-2y=6000-3600\\2y=2400\\y=2400/2\\y=1200$

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3 years ago

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Which equation can be used to find the volume of a sphere that has a radius of 9 miles?

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V=(4/3)pir^3

r=9
V=(4/3)pi9^3
V=12pi243
V=972pi

aprox pi=3.14
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3 years ago

What is the surface area of the following cylinder in square centimeters? 25 mm 1 cm 471 cm 2 2 31.4 cm 47.1 cm 2 54.95 cm 2

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Answer:

54.95 cm 2.

Step-by-step explanation:

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I just need to find this data set out, please anyone?

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Answer:

Ok so...

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Median: 72

Range: 85

Step-by-step explanation:

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