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Mrrafil [7]
3 years ago
7

Before the clowns arrived, only 35% of the children wore happy faces. If 117 children did not wear happy faces, how many childre

n were there in all?
Mathematics
1 answer:
denis-greek [22]3 years ago
4 0

Answer:

180

Step-by-step explanation:

If 35% did not wear happy faces, then 100% -35% = 65% did wear happy faces.

Then we have ...

... 117 = 65% × (all children)

... 117/0.65 = all children = 180 . . . . . . divide by 65% = 65/100 = 0.65

There were 180 children in all.

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The table shows the relationship between a, the area of a rectangle, and h, its height, when the base remains constant.
olganol [36]

Answer:

a = 4h.

Step-by-step explanation:

Area (a) = base (b) * height (h).

When h = 2, a = 8:

a =  bh

6 = 2b

b = 4

The result 4 is the same for  h = 5, 7 and 12.

So the required equation is

a = 4h.

4 0
3 years ago
A rainwater collection barrel has the dimensions shown.
Kipish [7]

Answer:

56

Step-by-step explanation:

if it is lenght by width then you would multiply the two numbers

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3 years ago
Read 2 more answers
Jim had a box full of baseball cards on Monday he gave 1/3 of them to John on Tuesday he gave 10 of them to Jeff finally on Wedn
larisa [96]

Answer:

120 baseball cards

Step-by-step explanation:

15 × 2 = 30

30 + 10 = 40

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Therefore there were 120 cards in the back

<em>I just did the inverse of each process starting from the last step and ending at the first</em>

5 0
3 years ago
Find the value of x.
Allisa [31]

A straight line is 180°, so you can do:

109 + ? = 180 (? is the top angle of the triangle)

? = 71°

Because the triangle is an isosceles triangle, the other angle is 71° too.

71 + 71 + ? = 180

? = 38

You subtract 38 with 90 to find the other angle.

90 - 38 = 52°

To find ∠2 you subtract 52 with 180.

180 - 52 = 128

∠2 = 128

128 = 11x + 18

110 = 11x

10 = x

5 0
3 years ago
CAN YOU HELP ME PLEASE I NEED THIS RIGHT NOW I DONT UNDERSTAND
Neporo4naja [7]

Answer:

divide the smaller number by the larger number

Step-by-step explanation:

54.8% or 55%

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