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Dmitry [639]
3 years ago
15

What does 4.5 miles equal in yards

Mathematics
1 answer:
IgorLugansk [536]3 years ago
8 0

4.5 miles is equal to 7920 yards

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Please help if you're good at geometry
Norma-Jean [14]

Answer:

6:00 a.m.

Step-by-step explanation:

4 0
2 years ago
A chemist wishes to mix a 30% acid solution with a 65% acid solution to obtain 175 quarts of 55% acid solution . How many quarts
Eva8 [605]

x = quarts of 30% acid solution

y = quarts of 65% solution

x + y = 175

Each quart of the 30% solution contributes 0.30x quarts of acid; similarly, each quart of the 65% solution contributes 0.65y quarts of acid. So

0.3x + 0.65y = 0.55*175 = 96.25

That is, the chemist wants 175 quarts of a new mixture with a 55% concentration of acid, which comes out to 95.25 total quarts of acid. The total amounts of acid from either sides of this equation must balance out.

Now solve for x and y:

x + y = 175  ==>  y = 175 - x

0.3x + 0.65y = 96.25  ==>  0.3x + 0.65(175 - x) = 96.25

==>  0.3x + 113.75 - 0.65x = 96.25

==>  17.5 = 0.35x

==>  x = 50  ==>  y = 125

7 0
2 years ago
Molla is making greeting cards for 5 of her friends each card is to have 4 ribbons what is the number of ribbons used?
qwelly [4]
The answer is 20 because five times four is 20 so all you do is multiple
4 0
3 years ago
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ryzh [129]

Answer:

Convection! :)

Step-by-step explanation:

5 0
3 years ago
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What is the midpoint of AB if A = (−2, 2) and B = (3, −1)?
Irina-Kira [14]
Midpoint formula (x1 + x2) / 2, (y1 + y2)/2
(-2,2)...x1 = -2 and y1 = 2
(3,-1)...x2 = 3 and y2 = -1
now we sub
m = (-2 + 3) / 2 , (2 - 1) / 2
m = (1/2, 1/2) <===
6 0
3 years ago
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