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nika2105 [10]
3 years ago
15

Sue washes 25 cars in 5 hours. Find the unit rate in cars per hour.

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
7 0

the answer is 5 car / hr.........................................

Nimfa-mama [501]3 years ago
5 0
She washes 5cars and hour or (5/1)
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What happens when the line and the slope increase and decrease
Ilya [14]
When you use this formula slope = rise/run like rise over run than you find the slope. rise me y and run means x. So when the line slopes downwards to the right it became negative slope as x increases and when line sloped upward to the right the slope become positive as y decreases. 

formula to find slope: slope = rise/run or y/x
8 0
3 years ago
Use elimination to solve the system.
julia-pushkina [17]

Answer:

the answer to your question is (9,3)

4 0
3 years ago
Which expression is equivalent to the given expression?<br><br> (10c6d-5)(2c-5d4)
Vlad1618 [11]

Answer:

120c²d - 1200cd² -10c + 100d

Step-by-step explanation:

We will first of all evalute inide the bracket then we expand it.

(10c6d-5)(2c-5d4)

=(60cd-5)(2c-20d)

= 60cd*2c -60cd*20d -5*2c +5*20d

= 120c²d - 1200cd² -10c + 100d

8 0
3 years ago
Why is the product of 3\5 and 250 smaller than 250?
victus00 [196]
Because you are not multiplying 250 by a number larger than 1. If you multiply 250 by a number larger than 1 the product will be larger than 250. If you multiply 250 by a number less than 1 the product will be less than 250.

Hope that helps!
7 0
3 years ago
Read 2 more answers
When no more than 110 units are produced, the cost of producing y units is given by C(x).
Maslowich

Producing 73.8 units gives the lowest possible average cost.

The average cost (AC) is the ratio of the total cost to the number of units produced. It is given by:

AC = C(x) / x

AC = (0.2x³ – 24x² + 1514x +30064) / x

AC = 0.2x² - 24x + 1514 + 30064/x

The lowest possible average cost is at AC' = 0. Hence differentiating the average cost, gives:

AC' = 0.4x - 24 - 30064/x²

0.4x - 24 - 30064/x² = 0

0.4x³ - 24x² - 30064 = 0

Solving the cubic polynomial gives:

x = 73.8 units

Therefore the lowest possible average cost is when 73.8 units are produced.

Find out more at: brainly.com/question/20346871

6 0
3 years ago
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