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Zigmanuir [339]
3 years ago
8

Sally can paint a room in 9 9 hours while it takes steve 4 4 hours to paint the same room. how long would it take them to paint

the room if they worked​ together?
Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0
If it is 99 and 44 it would take 55 I guess but if it is 9.9 and 4.4 then it would 5.5 hours
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A race is 3 miles long. There are water stations every 3/4 mile along the route. How many water stations are along the route?
Vilka [71]
There will be 4 water stations.

Why?

3/4 = .75 as a decimal

Personally, I believe that it’s easier to use decimals, I can explain the way in fractions in the comments if you’d like, just ask.

Anyway, .75 • 4= 3

or 3 / .75 = 4 (division is easier with bigger numbers)

so, there will be 4 water stations, given that the one race is 3 miles long.

If this explanation seems unclear, I’d be happy to explain. Feel free to ask in the comments!! I’m happy to help.

Hope this helps!

(If you find this answer helpful, please consider marking me brainliest, Thanks!)
6 0
3 years ago
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g100num [7]

Step-by-step explanation:

The total amount of seat in the train is the total number of carriages multiplied by the number on each carriages = 32 × 15 = 480seats

A. number of trains needed for 350,000 passengers = 350,000/ 480 = 729 trains approximately

4 0
3 years ago
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2(2x + 3) = 4x + 7<br> Does it have infinite solutions, one solution, or none?
Semmy [17]

Answer:

None

Step-by-step explanation:

Distribute the 2 to the parentheses:

2(2x + 3) = 4x + 7

4x + 6 = 4x + 7

Subtract 4x from both sides:

6 = 7

6 \neq 7

This not true, since 6 can never be equal to 7.

This means there are no solutions

3 0
3 years ago
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Find the value of x and y if 50=x+y
solong [7]
180-50=130
x-y=130
x+y=50
2x=180
x=90
90+y=50
y=50-90
y=-40
6 0
3 years ago
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Andrews [41]

Answer:

870

Step-by-step explanation:

6190-5320=870

4 0
3 years ago
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