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Anika [276]
3 years ago
9

Stefan can tar a roof in 11 hours. Kim can tar the same roof in 14 hours. How long would it take them if they worked together

Mathematics
1 answer:
Dovator [93]3 years ago
8 0
12.5 it takes 12.5 hours
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Can someone help me with this question please? ASAP
Lorico [155]

Answer:

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Step-by-step explanation:

4 0
3 years ago
How do you solve 10≤2x≤x+9? The answer says it's 5≤x≤9 but i have no idea how it got there
Tanya [424]

Answer:

Step-by-step explanation:

so why this kind of problem is so confusing is b/c it's 2 problems in one

if you were to expand this it look like this

10 ≤2x

and

2x ≤x+9

This is really saying.. that x has a range.. and that the 1st equations is the lower stop point,  and that the 2nd equations is the upper stop point

once it's taken apart.. I bet you can solve it pretty quickly.

5≤x

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then just put it back together in that confusing .. yet handy way to write it,

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5 0
3 years ago
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MArishka [77]
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3 years ago
1 3/5 + 2 5/10 what does that equal
Strike441 [17]

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Step-by-step explanation:

1 3/5 + 2 5/10 = 26/10 +25/10 = 51/10

5 0
3 years ago
Read 2 more answers
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mr_godi [17]

Answer:

83 degrees

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4 years ago
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