3 years ago

predict how many students in the school have at least one grandparent who belongs to a social network

Mathematics

1 answer:

noname [10]3 years ago

3 0

80-90 students have at least one grandparent who belongs to a social network

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20 is how much less than 30? What percent less?

LenKa [72]

Answer:

33.3333% decrease

Step-by-step explanation:

Percent change formula: $\frac{(x-y)}{|y|} *100$ , where x is the new value and y is the starting value.

Plug in values and solve:

$\frac{20-30}{30} *100\\\frac{-10}{30} *100\\-0.3333*100\\$

-33.3333% change, or a 33.3333% decrease.

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4 years ago

A scented candle is in the shape of a cylinder that is 8 inches tall. The diameter of the candle is 3.5 inches. Find the volume

blagie [28]

To find volume you use V=πr2h
V=3.14x1.75x2x8
answer: 76.97

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3 years ago

Y=10 when x=25, what is x when y=16

zavuch27 [327]

22 I think it’s probably wrong but I tried

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4 years ago

Sophie surveyed 30 random students in her school and 18 said they enjoy watching baseball. A total of 1,050 students are in the

Kitty [74]

Answer:

630 people

Step-by-step explanation:

Ratios:

$\frac{18}{30} =\frac{x}{1050} \\\\30x=18900\\x=630$

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3 years ago

What number is the opposite of -69?<br><br> What number is the opposite of the opposite of -69?

grandymaker [24]

Answer:

69, -69

Step-by-step explanation:

If the number is positive, the opposite of it is the same number, but negative.

If the number is negative, the opposite of the number is the same number, but positive.

So, -69 would be 69.

69 is the opposite of -69, so the opposite of 69 would go back to -69.

8 0

3 years ago

Read 2 more answers