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NISA [10]
3 years ago
8

A pump can move 42 gallons of water in 7 minutes. Find the unit rate

Mathematics
1 answer:
Crazy boy [7]3 years ago
6 0
In 1 min the thing can pump 6 gallons of water
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Find the perimeter pf a rectangular parking lot that has a width of 3x+2 and a<br> length of 5x-7.*
uranmaximum [27]

Answer:

<u>Perimeter</u><u> </u><u>is</u><u> </u><u>1</u><u>6</u><u>x</u><u> </u><u>-</u><u> </u><u>1</u><u>0</u>

Step-by-step explanation:

{ \sf{perimeter = 2(length + width)}} \\ p = 2 \{(5x - 7) + (3x + 2) \} \\ p = 2(8x - 5) \\ p = 16x - 10

8 0
3 years ago
Which is the same as moving the decimal point 3 places to the left in a decimal
Ludmilka [50]
Multiplying the number by 1,000
5 0
3 years ago
Use the given information to write an equation and solve the problem.<br> (28-31 in the picture)
tia_tia [17]

Answer:

28. 120 degrees

29. 30 degrees

30. 56 degrees & 124 degrees

31. 72 degrees, 108 degrees, and 18 degrees

Step-by-step explanation:

We assign variable x for the answer we are looking for (28-29).

28.

Supplement means x + y = 180 degrees. We also know x = 2y. Substitution gives us 3y = 180 degrees, so y = 60 degrees and x = 120 degrees.

29.

Complement means x + y = 90 degrees. We are given 2x = y. Substitution brings us 3x = 90 degrees, x = 30 degrees.

30.

Supplement means x + y = 180 degrees. We are told that y = 2x + 12, so we substitute. This gives 3x + 12 = 180 degrees, x = 56 degrees. Substituting that back into the equation for y, we get 124 degrees.

31.

Supplement means x + y = 180 degrees. Complement means x + z = 90 degrees.  Using our given info, we know y = 6z. We can substitute that in to get x + 6z = 180. Subtracting our second and third equations, we get 5z = 90, z = 18 degrees.  Therefore, x = 72 degrees, y = 108 degrees.

3 0
2 years ago
Read 2 more answers
A sandbox is being built in a park. The diagram shows the four vertices of the sandbox. Each unit in the
____ [38]

Answer:

the answer is 90 square feet.

Step-by-step explanation:

the length is 10, and the height is 9.

10×9=90

5 0
2 years ago
If you are buying at item at a store for a price of $17, and there is a 8.7% tax added on top, what would be the total amount du
anyanavicka [17]

Answer:

$18.48

Step-by-step explanation:

To find a percentage you just multiply the amount x the percentage in decimal form.

17 x 0.087 = 1.479 tax

Then you add that number too the original total.

17+1.479 = 18.479

Then you round to the nearest cent.

18.48

Total:

$18.48

8 0
3 years ago
Read 2 more answers
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