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12345 [234]
2 years ago
8

Which answer is a solution for z if x/4 = 21?

Mathematics
1 answer:
maksim [4K]2 years ago
5 0

Answer:

x=84

Step-by-step explanation:

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One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant rate from 8 p.m. to midnight. At mi
aliina [53]

Answer:

- 4.2 degrees

Step-by-step explanation:

If the drop was from temp 0 at 8 pm to temp -16.8 at midnight (4 hours later)

then,the drop is given by the rate: -16.8/4 = - 4.2 degrees per hour

Therefore, at 9 pm the temperature was:

0 degrees - 4.2 degrees = - 4.2 degrees

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3 years ago
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Find 12 1/2 % of 96men
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Step-by-step explanation:

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What is the surface area of this square pyramid?
OLEGan [10]
240cm2 is the answer
3 0
2 years ago
Find the values of x and y.
Harrizon [31]
4x+5x = 90
9x = 90
x = 10

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answer
<span>d) x = 10, y = 12</span>
5 0
3 years ago
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A restaurant has 20 and 1/2 pounds of bananas to make smoothies a check uses 1/8 lb of bananas per smoothie. how many smoothies
torisob [31]

Step-by-step explanation:

I assume you meant :

the restaurant has 20 1/2 pounds of bananas.

one smoothie uses 1/8 pound of bananas.

how many smoothies can be made with the amount of available bananas ?

the answer is as many as the times 1/8 fit into 20 1/2.

so, we actually calculate

(20 1/2) / (1/8)

first we will convert the mixed number into a true fraction :

20 1/2 = 40/2 + 1/2 = 41/2

so we have

41/2 / 1/8

and then, when dividing fractions we have 2 choices (they do both the same, of course, but start looking differently) :

a/b / c/d = a×d / b×c

a/b / c/d = a/b × d/c = a×d / b×c

so,

41/2 / 1/8 = 41×8 / 2×1 = 41×4 = 164

they can make 164 smoothies.

7 0
1 year ago
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