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KATRIN_1 [288]
3 years ago
8

A large concrete mixing machine can mix a certain amount of concede in 12 hours, while a smallet one can mix

Mathematics
1 answer:
Andrews [41]3 years ago
5 0

Answer:

[(1/12)(5/5) + (1/20)(3/3)](x hours) = 1

(5/60 + 3/60)x = 1

(8/60)x = 1 we can reduce 8/60 by dividing out a 4

(2/15)x = 1 x both sides by 15/2

x = 15/2

x = 7 1/2 or 7.5 hours

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Jerry's return trip took 2/5 hour longer. How long did his return trip take?
Vedmedyk [2.9K]
It took him 4 1/5 hours to get home
5 0
3 years ago
Darnell is comparing three loan options to determine which one is best for his situation. Match each loan option with the correc
shusha [124]

Answer:

Option T - Lowest

Option R - Highest

Option S - Neither

Explanation:

Option T $334.43 x 48 = $16,052.64 -- adding $52.64 in interest

Option R $203.67 x 72 = $14,664.24 -- adding $664.24 in interest

Option S $256.24 x 60 = $15,374.4 -- adding $374.4 in interest.

T = $52.64 (Lowest)

R = $664.24 (Highest)

S = $374.4 (Middle)

4 0
3 years ago
What is the fifth term of the geometric sequence 5,15,45,...
denpristay [2]

Answer:

405

Step-by-step explanation:

This is a geometric sequence, so we need the common ratio and the first term

To find the common ratio, we take the second term and divide by the first term

15/5 =3

The common ratio is 3

We are multiplying by 3 each time

The first term is 5

The formula is

an = a1 * (r) ^ (n-1)  where n is the term number

We want the 5th term

a5 = 5 * (3) ^ (5-1)

a5 = 5 *3^4

    = 5 *81

    = 405

7 0
4 years ago
Help 5 minutes 10 points
Brums [2.3K]

Answer:

could you add a clearer pic

Step-by-step explanation:

blurry

8 0
3 years ago
I didn't go to class for a week and my quiz is due tomorrow can someone help/explain
Marizza181 [45]
A) 14900(1+5.3%)^11
=26296.52 (2dp)

b) 14900(1+5.3%)^27
=60083.094
So it will be 27 years
6 0
3 years ago
Read 2 more answers
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