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ivanzaharov [21]
3 years ago
5

What is 4/5 of 2 hours​

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
8 0

Answer:

\frac{8}{5}~hours~~or~~1.6~hours}

Step-by-step explanation:

\frac{4}{5}~of~2~hours =

= \frac{4}{5} \times 2~hours

= \frac{4}{5} \times \frac{2}{1}~hours

= \frac{4 \times 2}{5 \times 1}~hours

= \frac{8}{5}~hours

= 1.6~hours

soldier1979 [14.2K]3 years ago
5 0

Answer:

1.6 hours

Step-by-step explanation:

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A tree casts a shadow 12 meters long , while a bush nearby casts a shadow 3.5 meters long. If the tree is 3.2 meters tall, how t
Lynna [10]
X = height of bush
12/3.5 = 3.2/x  [cross multiply]
(12)(x) = (3.2)(3.5)
12x = 11.2 [Divide 12 on both sides]
x = 0.93 m

The height of the bush is 0.93 meters. 
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6 0
4 years ago
Find the two square roots of 144.
spin [16.1K]

Answer:

The square root function

sqrt(144) or √144 produces a single positive value, 12.  

However if you have an equation

x² = 144, then you have two possible values for x, 12 and -12.  

Two ways to look at it.  

x² - 144 = 0

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x = ±√144

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x = -12, 12

4 0
4 years ago
Read 2 more answers
The radius of a circle with area A is approximately √A/3. The area of a circular mouse pad is 54 square inches. Estimate its rad
Gnesinka [82]

Answer:

4.2

Step-by-step explanation:

First I did 54 divided by 3 which is 18.  Then I found the square root of 18.

3 0
3 years ago
A pair of boots that originally sold for $75.32 are on sale for 22% off.
Vesnalui [34]

Answer:

The boots will be $58.75

Step-by-step explanation:

first you cross multiply

\frac{x}{75.32} x \frac{22}{100}

you then get 1,657.04= 100x, so divide by 100 on both sides to get

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Subtract X (the 22% discount amount) from the original price to get the new price of $58.75!

3 0
3 years ago
Can someone explain how to do this and add the formula please
lisabon 2012 [21]

Answer:

5 is 35 and 6 is 50

Step-by-step explanation:

To solve 5, you need to know how many degrees is the line, which is 180 because lines are 180 degrees. You then subtract 110 from 180 which equals to 70. What you have left now is 2k. A number times 2 will equal to 70, so k=35.

For 6, if you ever see two lines intersecting each other, it means that it is 360 degrees. We already have one angle, which is 120. The other angle is d+70 degrees, and any angle that is reflecting the other angle will have the same value. So, d equals 50

(sorry if you still can't understand it I'm not good at English

6 0
3 years ago
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