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ella [17]
3 years ago
11

How do you solve 3(15.9 - 3.9) Step by step? I need help

Mathematics
2 answers:
N76 [4]3 years ago
5 0

Answer:

36

Step-by-step explanation:

3(15.9 - 3.9)

3 · (15.9 - 3.9)

3(15.9) - 3(3.9)

47.7 - 3(3.9)

47.7 - 11.7

36

mote1985 [20]3 years ago
4 0

Answer:

I believe the answer is 15

Step-by-step explanation:

15.9 - 3.9 (line up the decimals correctly)

then subtract it and you get 12.0

add 12.0 + 3 (under the 2)

12.0

+3

and you get 15 as your answer :)

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Anna is saving to buy a new cell phone. Her mother is helping Anna by contributing money each month. What is the ratio between t
Dmitry [639]

Answer:

Option D. 3:1, $120

Step-by-step explanation:        

The complete question in the attached figure    

Part 1) What is the ratio between the amount of money contributed by Anna and the amount contributed by her mother?      

Let    

x -----> the amount of money contributed by Anna      

y ----> the amount of money contributed by her mother    

we know that    

Looking at the table  

The value of x is equal to   x=\$30+\$60+\$90+\$120=\$300  

The value of y is equal to   y=\$10+\$20+\$30+\$40=\$100    

Find the ratio  x/y  

substitute the values  

\frac{x}{y}=\frac{300}{100}=\frac{3}{1}  

Part 2)  What was the total amount saved in April?    

we know that        

To find out the  total amount saved in April, adds Mon's contribution in April plus Anna's contribution in April            

so            

(\$30+\$90)=\$120                          

3 0
3 years ago
Read 2 more answers
What are the solutions to the equation?
Rzqust [24]

Answer:

Hello! Your answer is 276

Step-by-step explanation:

Let's just break up the equation:

(3.x2) + (6x45)

  6    +     270

<u><em>Hence, the answer is 276</em></u>

<u><em></em></u>

<u><em></em></u>

<u><em></em></u>

<u><em>Hope This Helps :)</em></u>

<u><em>Please mark brainliest</em></u>

8 0
2 years ago
In the figure below, Ken's company has placed sprinkler heads at the center of the two small semicircles. The radius
Novay_Z [31]

Answer:

The answer is below

Step-by-step explanation:

The sprinklers have a radius of 5 ft each. Since the larger semicircle (entire lawn) has a diameter that is formed from the 2 semicircles, therefore the radius of the larger semicircle is 10 ft.

Area that wont be watered can be gotten by subtracting the area of the two smaller circles from the area of larger semicircle.

Area that wont be watered = 1/2(π * 10²) - 2[1/2(π * 5²)] = 50π - 25π = 25π ft²

6 0
2 years ago
What is the least common multiple of <br> 16, 20, and 50
IRINA_888 [86]

Answer:

400

Step-by-step explanation:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

3 0
3 years ago
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A ball is thrown into the air with an upward velocity of 24 ft/s. Its height h in feet after t seconds is given by the function
Natalija [7]
<span>D. 0.75 s; 16 ft is the best choice

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6 0
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