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Luden [163]
3 years ago
15

A medium water hose can fill a pool in 30 minutes. A larger water hose can fill the same pool in 20 minutes. If both hoses are t

urned on at the same time, how long will it take to fill the pool?
Mathematics
1 answer:
Reptile [31]3 years ago
5 0
10 minutes I'm pretty sure. My calculations may be off but at least I tried
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A bank teller knows that she received 34 dimes and nickels from a customer. If the change totaled $2.05, how many dimes and nick
ivanzaharov [21]
D = # of dimes
n= # of nickles

d + n = 34 so d = 34 - n
.10d + .05n = 2.05

substitute d = 34 - n into .10d + .05n = 2.05

.10d + .05n = 2.05
.10( 34 - n) + .05n = 2.05
3.4 - .1n + .05n = 2.05
     -.05n = -1.35
  n = 27

d = 34 - n
d = 34 - 27
d = 7

answer

<span>she received 7 dimes and 27 nickels</span>
7 0
3 years ago
What is just the coefficient of the 3rd term of (3x + 5y)^8 ?
Burka [1]

Answer:

i hope this is correct, i might be wrong(i am so sorry if i am wrong), but im thinking it is 8

Step-by-step explanation:

6 0
3 years ago
If n is equal to 9×7 what should be added to n to make it 233​
iris [78.8K]
170 should be added because 9x7 is 63 and you would subtract 63 from 233
4 0
3 years ago
Why us the answer 20-2 (5+5)
nadya68 [22]
20 - 2(5 + 5)
20 - 2(10)
20 - 20
0
4 0
2 years ago
Read 2 more answers
4+9 because i need to waste my points
Annette [7]

Answer:

ummmmm i think apple?

Step-by-step explanation:

because if 4 equals green and you put the square root of branch in there you will get branch×apple tree+water=apple my bad its green apple

i did it wrong i just redid the question and found the right answer. so if you put branch×square root of 9 apples+apple tree=9 apples right? well yes but if you add branch+square root of 4 more apples you will get in total 13 apples.

3 0
2 years ago
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