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antoniya [11.8K]
3 years ago
11

Why is 315 the lcm of 21 and 45?

Mathematics
1 answer:
Maurinko [17]3 years ago
3 0
I hope this helps you

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160 is 120% of what number?
LuckyWell [14K]
120 % = 160

---------------------------------------------------------------------------
Find 1 % :
---------------------------------------------------------------------------
120% = 160
1% = 160 ÷ 120
1% = 4/3

---------------------------------------------------------------------------
Find 100% :
---------------------------------------------------------------------------
1% = 4/3
100% = 4/3 x 100
100% = 133 1/3

---------------------------------------------------------------------------
Answer: 160 is 120% of 133 1/3
---------------------------------------------------------------------------
8 0
2 years ago
Read 2 more answers
Bill wants to rent a car.Rental Company A charges $35 per day plus $0.10 per mile driven.Rental Company B charges $25 per day pl
zlopas [31]

Answer:

m = 200 miles

Step-by-step explanation:

Rental Co. A:  A(m) = $35 + ($0.10/mile)(m), where m is the number of miles driven

Rental Co. B:  B(m) = $25 + ($0.15/mile)(m)

Set these two dollar amounts equal to each other and solve for m:

$25 + ($0.15/mile)m = $35 + ($0.10/mile)(m).  Combine like terms, obtaining:

($0.05/mile)m = $10; then m = ($10) / ($0.05/mile), or 200 miles.

The price charged by the two companies would be the same when the car has been driven 200 miles.

7 0
3 years ago
Running at a continuous 5.0 mph it takes me 3:06 minutes to complete one full lap around a track. If I want to run 2 miles in un
shepuryov [24]
To get this answer you would have to have a pace calculator!
7 0
2 years ago
Read 2 more answers
Simplify 7-5x-(3+5x)​
galben [10]

Answer:

-10x +4

Step-by-step explanation:

8 0
2 years ago
It takes Billy fifteen minutes to complete 1/8 of a recipe. At this rate go long will it take for him to complete the recipe
vichka [17]

well, a WHOLE is 1, in this case is 8/8, that'd be a whole.


so Billy does 1/8 in 15 minutes, well, there are 8/8, so do the whole recipe that'd be 8 * 15 minutes, or 120 minutes, or 2 hours.


or you can see it this way, 1/8 is 15 minutes, since there are eight 1/8's, then it'd take 15+15+15+15+15+15+15+15 minutes.

8 0
3 years ago
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