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valkas [14]
3 years ago
12

The water level in a lake was 22 inches below normal at the beginning of March. The water level decreased by 3 1/6 inches in Mar

ch and increased by 1 6/7 inches in April
Mathematics
1 answer:
Vinvika [58]3 years ago
8 0
At the beginning it was 22 inches below normal (-22).
Then it decreased by 3 1/6 (-19/6).
Then increased by 1 6/7 (+13/7)

-22 - 19/6 + 13/7
-924/42 - 133/42 + 78/42
-1057/42 + 78/42
-979/42
-23 13/42

It was 23 13/42 inches below normal after April.
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What is the sum of 13+52 as the product of their GCF and another sum
vova2212 [387]
GCF(13; 52) = 13

13 = 13 · 1
52 = 13 · 4

13 + 52 = 13 · 1 + 13 ·4 = 13·(1 + 4)

Used distributive property: a(b + c) = ab + ac
4 0
3 years ago
What is the perimeter of the shape below?
Mashcka [7]

None of these choices are correct

The down side of the shape is unknown and cannot be found, therefore you cannot find the perimeter of the shape.

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2 years ago
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STatiana [176]
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7 0
3 years ago
The variables x, y, and z vary jointly.
serious [3.7K]

Answer:

k = 18

when x = 4, y = 3, z = -24

Step-by-step explanation:

x = k * y * z

Find k when x = 4, y = 3, and z = 24

4 = k * 3 * 24

4 = k * 72

4 = 72k

k = 72/4

k = 18

find z when x = -3 and y = 4

x = k * y * z

-3 = 18 * 4 * z

-3 = 72 * z

-3 = 72z

z = 72/-3

z = -24

4 0
3 years ago
Mr. Stanton bought 2.6 yards of fabric for $8.94. About how much was the cost per yard?
lapo4ka [179]

In order to find CPU (Cost per unit) we must take the cost, and divide it by the number of units.

So,

\$8.94\div2.6=\$3.4384

Since we are talking about money, it is implied to round to the nearest cent, so the final answer is

$3.44

4 0
3 years ago
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