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Svetach [21]
3 years ago
8

What will be 50% of 42

Mathematics
2 answers:
zimovet [89]3 years ago
7 0
Twenty one is the answer
Airida [17]3 years ago
7 0

To find 50% of 42, first write 50% as a decimal by moving the decimal point 2 places to the left to get .50.

Next, the word "of" means multiply, so we have to multiply.

(.50) × (40) = 21

Therefore, 50% of 42 is 21.

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Solve for the variable. 3/4x = -24​
sleet_krkn [62]

Hello!

Answer:

\huge\boxed{x = -32}

3/4x = -24

To isolate the "x" variable, divide both sides by 3/4 (multiply by its reciprocal, or 4/3)

3/4x · 4/3 = -24 · 4/3

x = (-24 · 4) / 3

x = -32.

8 0
3 years ago
Read 2 more answers
Opal makes $15 per hour working for a photographer. She also coaches a competitive soccer team for $10 per hour.
Jlenok [28]

The system of inequalities that represents the given situation are x + y ≤ 20 and 15x + 10y ≥ 90.

The parameters needed to model the inequalities;

  • amount made by Opal working for a photographer = $15 per hour
  • amount made in the soccer team = $10 per hour
  • minimum amount Opal needs to make a week = $90
  • maximum number of hours Opal needs to work = 20 hours

Let the number of hours Opal works for a photographer = x

Let the number of hours Opal works in soccer team = y

The first system of inequality in the given situation is represented as;

x + y ≤ 20

The second system of inequality in the given situation is represented as;

15x + 10y ≥ 90

Thus, the system of inequalities that represents the given situation are x + y ≤ 20 and 15x + 10y ≥ 90.

learn more here: brainly.com/question/9774970

7 0
2 years ago
Which pair of numbers have a GCF of 7?
Inessa [10]
A GCF is the greatest common factor. It is the largest number that fits into other numbers. A seven cannot fit into a number smaller than itself, that doesn't work. Try to fit 7 into a smaller number like 4, it doesn't work.

Option A is 21 and 3 and Option C is 7 and 1. Those can be eliminated because 7 is larger than 3 and 1.

Option B is 7, 14. 7 Is the largest number that goes into 7 and it goes into 14. So B works.

28 and 7 is Option D. 7 is the largest number that goes into 7 and it goes into 28, so D works.
6 0
3 years ago
A 13 foot ladder is leaning against a wall. If the point where the ladder meets the wall is 12 feet above the ground, how far fr
pashok25 [27]


5 feet bc...

12^2 + B^2 = 13^2

7 0
3 years ago
Read 2 more answers
Line g is dilated by a scale factor of 1/2 from the origin to create line g'. Where are points E' and F' located after dilation,
Sholpan [36]

Answer:

The locations of E' and F' are E'(-2,0) and F'(0,1), and lines g and g' are parallel.

Step-by-step explanation:

I got it right on my test! :)

7 0
3 years ago
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