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Vikki [24]
3 years ago
15

4 (-3-5) - (10+4x) helpppppp​

Mathematics
1 answer:
Lilit [14]3 years ago
7 0

Answer:

The answer would be -4x - 42.

Step-by-step explanation:

Goal: Simplify the equation.

  1. You need to distribute the - sign where it isn't. So the equation should look like this now: 4(-3-5)+-1(10+4x).
  2. Now multiply -1(0+4x): (-1)(10) + -1(4x) to get 4(-3-5) +-10+-4x
  3. Now multiply 4(-3-5): (4)(-3)= -12 / (4)(5) = 20 / -12-20 = -32
  4. The equation should now look like: -32 + -10 + -4x
  5. Next, we need to combine like terms and since the like terms are -32 and -10, the equation should look like: -4x + (-32 + -10).
  6. Add -32 with -10: -32 + -10 = -42.
  7. You can't do anything with the -4x so therefore, the equation would be -4x - 42.
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Paul and Tom both commute to work. Paul's commute on the train takes 15 minutes more than one third as many minutes as Tom's com
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Answer:

  45 = (one third)x + 15

Step-by-step explanation:

If x represents the number of minutes Tom commutes, then (1/3)x is "one-third as many minutes as Tom's commute." 15 minutes more than that is ...

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We are told this is the length of Paul's commute, and that it is 45 minutes. So, the appropriate equation is ...

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2 years ago
The Lewis family and the Perry family each used their sprinklers last summer. The water output rate for the Lewis family's sprin
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The Lewis family and the Perry family each used their sprinklers last summer. The water output rate for the Lewis family's sprinkler was 15 L per hour. The water output rate for the Perry family's sprinkler was 40 L per hour. The families used their sprinklers for a combined total of 65 hours, resulting in a total water output of 1850 L . How long was each sprinkler used

Answer:

Hours of use of sprinkler by Lewis family is 30 hours.

Hours of use of sprinkler by Perry family is 35 hours.

Step-by-step explanation:

Let W = hours of use by Lewis family

65 - W = hours of use by Perry family

Then;

15W + 40*(65 - W) = 1850

15W + 2600 - 40W = 1850

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Therefore;

W = 30

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Hours of use by Lewis family is 30 hours.

Hours of use by Perry family is 35 hours.

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Answer:

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Step-by-step explanation:

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Each square side has area 9 ft^2.

The area of a square is the square of the side, so the side of a square is the square root of the area.

side = sqrt(9 ft)^2 = 3 ft

The volume of a cube is the cube of the side.

volume = (3 ft)^3

volume = 27 ft^3

4 0
3 years ago
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