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Leya [2.2K]
3 years ago
8

Write an expression that is equivalent to 3/5 (3y + 15). A. y + 9 B. y + 9 C.y + 15 D. y + 15

Mathematics
1 answer:
Alexus [3.1K]3 years ago
5 0
<span>Write an expression that is equivalent to 3/5 (3y + 15). A. y + 9 B. y + 9 C.y + 15 D. y + 15

</span>\dfrac{3}{5}( 3y+15) =   \dfrac{3*3y}{5}+ \dfrac{3*15}{5}=  \dfrac{9}{5}y+ \dfrac{45}{5}= \boxed{\dfrac{9}{5}y+9}<span>
</span>
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80.8=8(m+2.8) what is this answer
Aleonysh [2.5K]
The answer is 7.3, If you use the order of operations, When you divide 58.4 by 8 you get 7.3
8 0
3 years ago
How do you estimate 175.32 ÷ 3 =
geniusboy [140]

Answer:

  ≈ 58

Step-by-step explanation:

Estimation usually means you want an answer good to one or maybe two significant figures. That usually means you want to round the numbers involved to one or two significant figures.

Doing that here transforms the problem to 180/3 = 60, an answer with one significant figure.

You can improve the estimate a bit by recognizing that it is a little high (the numerator is higher than 175.32, but the denominator is the same). Since the numerator is high by about 5, the estimate is high by about 5/3 or a little less than 2. A closer estimate will be 60 - 2 = 58.

_____

The degree to which you refine the estimate will depend on the error requirements you have. Certainly an estimate of 60 is within 10% of the true value, so is "close enough" for many purposes.

7 0
3 years ago
What is the volume of a hemisphere with a radius of 3 cm, rounded to the nearest tenth of a cubic centimeter?
Kaylis [27]

Formula: V = (2/3) π r 3.

Radius is 3cm.

So, now we can plug it in to solve for the volume.

V = (2/3) π 3^3

First, let's multiply 3^3.

3^3 = 27

Then, 27 x π = 84.82

After, multiply by 2/3.

84.82 x 2/3 = 56.55

Lastly, round 56.55 to the nearest tenth of a cubic centimeter.

56.55 = 56.6

Therefore the volume of a hemisphere with a radius of 3cm is 56.6cm^3.

8 0
2 years ago
Read 2 more answers
Was I correct?- thank you
sergey [27]

Answer:

Yes

Step-by-step explanation:

5 0
2 years ago
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Help me please i dont understand
notka56 [123]

Answer:

96 ft^2.

Step-by-step explanation:

Area of shaded region = area of the original rectangle - area of the one removed

= 8 * 16 - 8*4

= 128 - 32

= 96

5 0
2 years ago
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