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mart [117]
3 years ago
9

Between 10 P.M. and 7:45 A.M.​, the water level in a swimming pool decreased by 3/8 inches . Assuming that the water level decre

ased at a constant​ rate, how much did the water level drop each​ hour?
Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Answer:

0.03846154... inches/hour

Step-by-step explanation:

between 10 P.M. and 7:45 A.M. = 9.75 hours

(3/8) inches / 9.75 hours = 0.03846154... inches per hour

EDIT: in fraction form

Answer:

1/26 inches/hour

Step-by-step explanation:

between 10 P.M. and 7:45 A.M. = 9 and 3/4 hours, or 39/4 hours

(3/8) inches / (39/4) hours = 1/26 inches per hour

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adell [148]

9514 1404 393

Answer:

  (0.5, -2.5)

Step-by-step explanation:

Each of the coordinates of B(1, -5) is multiplied by the scale factor, 0.5:

  B' = (0.5·1, 0.5·(-5)) = (0.5, -2.5)

The coordinates of B' are (0.5, -2.5).

3 0
3 years ago
You want to buy three books that are on sale at 20% off. The original prices of the books are $2.50, $4.95, and $6.00. How much
Veseljchak [2.6K]

Answer:

$2.69

Step-by-step explanation:

The original prices of the books are $2.50, $4.95, and $6.00.

You want to buy three books that are on sale at 20% off (or 0.2 as decimal).

In total, you'll save:

0.2\cdot \$2.50+0.2\cdot \$4.95+0.2\cdot \$6

Uce distributive property:

0.2\cdot \$2.50+0.2\cdot \$4.95+0.2\cdot \$6\\ \\=0.2\cdot (\$2.50+\$4.95+\$6.00)\\ \\=0.2\cdot \$13.45\\ \\=\$2.69

5 0
3 years ago
3. Use an inequality symbol (<, >, 2, =) to compare -26_54
Viefleur [7K]

It would be A or < since 54 is positive and -26 isn't, that makes 54 greater than -26.

8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=-2%283%20-%202x%29%20%3D%20-6x%20%2B%208%28x%20%2B%202%29" id="TexFormula1" title="-2(3 - 2x)
vovikov84 [41]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{x = 11}}}}}

Step-by-step explanation:

\sf{ - 2(3 - 2x) =  - 6x + 8(x + 2)}

Distribute -2 through the parentheses

Similarly, Distribute 8 through the parentheses

\dashrightarrow{ \sf{ - 6 + 4x =  - 6x + 8x + 16}}

Collect like terms

\dashrightarrow{ \sf{ - 6 + 4x = 2x + 16}}

Move 2x to left hand side and change it's sign

Similarly, move 6 to right hand side and change it's sign

\dashrightarrow{ \sf{4x - 2x = 16 + 6}}

Collect like terms

\dashrightarrow{ \sf{2x = 16 + 6}}

Add the numbers : 16 and 6

\dashrightarrow{ \sf{2x = 22}}

Divide both sides by 2

\dashrightarrow{ \sf{ \frac{2x}{2}  =  \frac{22}{2} }}

Calculate

\dashrightarrow{ \sf{x = 11}}

Hope I helped!

Best regards! :D

5 0
3 years ago
Find the value of x in the triangle <br> X=??
o-na [289]
25 degrees since all triangles add up to 180 56 and 99 together make 155 and subtract 180 by 155 and you get 25
5 0
3 years ago
Read 2 more answers
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