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steposvetlana [31]
3 years ago
7

Pls help I need help plsss

Mathematics
1 answer:
cupoosta [38]3 years ago
4 0
Whats up? What do you need help with
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Find the sum using fraction bars or a paper and pencil. Write your answer in simplest form.
vlabodo [156]
Find the LCD = 18

5/6 = 15/18
3/9 = 6/18

15/18 + 6/18 = 21/18 = 7/5 or 1 2/5
3 0
3 years ago
If 7 liters of petrol cost $14.70, calculate the cost of 15 liters of petrol.​
Alex73 [517]

Hi

7 = 14.70

15= X

so :  X =  15*14.70 /7 = 31.5

15 liters  of petrol cost  31.5

5 0
3 years ago
Read 2 more answers
A game designer must decide how to color four buildings that are in a row. Using only the colors yellow, green, red, and blue, e
topjm [15]

Answer:

The number of ways are there to paint the four buildings is 48.

Step-by-step explanation:

I) let the first building be any color. Therefore the first building can be painted with any of the 4 colors.

Therefore the first building can be colored in 4 ways.

ii) the second building can be colored in 3 ways since it cannot be colored the

same color as the first building.

iii) the third building can also be colored in 3 ways.

iv) the last building can be colored in 2 ways because it cannot be the same color as the first building or the color of the adjacent building.

Therefore the total number of ways the buildings can be colored = 4 \times 3 \times 3  \times 2 = 48.

7 0
3 years ago
Two numbers are graphed on the number line below. Consider the inequality t values graphed on the number line make the inequalit
Black_prince [1.1K]

Answer: t=7 and r=-3

So if you t<r + 5 count the number line

Step-by-step explanation:

8 0
2 years ago
The graph of the function, f, is shown. What is the domain of f?
pentagon [3]

Answer:

D : [-2,0) U (0, infinity) ; -2<=x<0 U x>0

6 0
3 years ago
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