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MA_775_DIABLO [31]
3 years ago
15

A hairdresser combined three bottles of shampoo into one bottle. The first bottle had 4.8 ounces of shampoo, the second bottle h

ad 5.4 ounces, and the third bottle had 6.6 ounces. The hairdresser used 2 5of the shampoo from the new bottle when she washed her hair. How many ounces of shampoo did she use? Describe two different ways to solve the problem.

Mathematics
1 answer:
Korvikt [17]3 years ago
6 0

Answer:

about 20

Step-by-step explanation:

its kindergarden math

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a city worker is painting a stripedown the center of main street. main street is 8/10 mile long the worker painted 4/10 mile of
harina [27]
Subtract 8/10 from 4/10 but just the numerator (the top number) and you will get 4/10
8 0
3 years ago
What is the percent decrease from 72 to 45
Marizza181 [45]

Answer:

37.5%

Step-by-step explanation:

72-45=27

27/72=x/100

2700/72=x

x=37.5

37.5%

5 0
3 years ago
if 2 binders of the same size take up 3 inches on the shelf how much space will be needed for 28 of these binders?
Anna [14]

Answer:

84

Step-by-step explanation:

28x3=84

I hope i did that right

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7 0
2 years ago
Please help thanks gryrrjfjti
lara [203]

9514 1404 393

Answer:

     207.24 in²

Step-by-step explanation:

The "r" in the formula stands for the radius of the cylinder. That is half the diameter, so is 3 in. The "h" in the formula stands for the cylinder height, shown as 8 in. Put these values in the formula and do the arithmetic.

  SA = 2πr(r +h) = 2(3.14)(3 in)(3 in + 8 in) = 6.28(33 in²)

  SA = 207.24 in²

5 0
3 years ago
the lateral area of a cone with a diameter of 15 yards is about 287.5 square yards. to the nearest tenth, what is the slant heig
irina1246 [14]
Lateral area of the cone is given by:
LA=πr√(h²+r²)
where:
h=height
r=radius
Given that LA=287.5 yd² and r=(15/2) yds, then the height will be:
287.5=7.5π√(h²+7.5²)
solving for h we get:
(287.5/7.5π)²=h²+7.5²
thus
h²=(287.5/7.5π)²-7.5²
h²=63.1851597
 To get the slant height we use Pythagorean theorem.
c²=a²+b²
a²=h², b²=7.5²
thus
c²=h²+7.5²
c²=63.1851597+56.25
c²=119.4351597
c=10.92864~10.9 yards
3 0
3 years ago
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