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Alex Ar [27]
2 years ago
8

Please help! Look at the picture.

Mathematics
1 answer:
trasher [3.6K]2 years ago
3 0

Answer:

It took each girl 1/8 hour to print their project.

Step-by-step explanation:

1/2 hour = 30 minutes

30 minutes / 4 girls = 7.5 minutes for each girl to print their project

7.5 minutes / 60 minutes in an hour = 0.125 or 1/8 hour

Hope this helps!

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A company mixes two kinds of cleansers to get a blend they sell for 59 cents a liter. One of the cleansers costs 50 cents per li
Lilit [14]

Answer:

Cleanser that costs 50 cents is 1400 liters, Cleanser that costs 80 cents is 600 liters.

Step-by-step explanation:

We can solve this by using <em>simultaneous equations</em>:

  1. Let us express the question in terms of equations

Let a be cleanser at 50 cents and let b be the cleanser at 80 cents.

Equation 1: 0.5a + 0.8b = 0.59(a+b)

Equation 2: a + b = 2000

From equation 2, a = 2000 - b (Let's call this equation 3)

    2. Substituting equations 2 and 3 in Equation 1:

0.5a + 0.8b = 0.59(a+b)

0.5(2000 - b) + 0.8b = 0.59(2000)

1000 - 0.5b + 0.8b = 1180

0.3b = 180

b = 600

Substitute in equation 3:

a = 2000 - 600

a = 1400

As a note, I formed equation 1 because I know for a fact the cost per liter of a and b. I also know it is sold at 0.59 cents per liter. We are selling 2000 liters in this instance, therefore 0.59(2000) = 1180, which in this case is the selling price.

4 0
3 years ago
Peggy bought two racing cars for 5x dollars each and three model motorcycles for 3 eggs dollars each find the amount of money Pe
Sever21 [200]

Answer:

  19x

Step-by-step explanation:

The cost of the racing cars was ...

  2(5x) = 10x

The cost of the model motorcycles was ...

  3(3x) = 9x

Peggy paid in total ...

  10x + 9x = 19x

7 0
3 years ago
9. Put these numbers in greatest to least order: 2/3, 60%, 0.06, 3/4
Iteru [2.4K]

Step-by-step explanation:

  1. 0.06
  2. 60%
  3. 2/3
  4. 3/4

hope it's right :)

8 0
3 years ago
1) After striking a pair of arcs from each endpoint of a line segment, what is the next step in constructing the segment's perpe
qaws [65]
After striking a pair of arcs from each endpoint of a line segment, just join the intersection point of the 1st pair (above the segment) with the intersection point
of the 2nd pair (under the segment)
And this is how you construct the segment's perpendicular bisector


6 0
3 years ago
Read 2 more answers
Write expression of the following phrase. <br> x is at least 7
SIZIF [17.4K]

Answer:

  x ≥ 7

Step-by-step explanation:

"Is at least" means the same as "is greater than or equal to". Then "x is greater than or equal to 7" is expressed in symbols as ...

  x ≥ 7

5 0
3 years ago
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