3 years ago

Unit Test: A

Mathematics

1 answer:

Marizza181 [45]3 years ago

7 0

Answer:

D................ .......

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Which graph does NOT represent y as a function of x?

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A
since it doesn’t pass the vertical line test, which proves if a graph is a function.

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The number of tourists at the beach per weekend in July was 55,000. In November, the number of tourists per weekend was 18,000.

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55 minus 18 is 37 and then it would be 37,000 and then you just convert it so it is 37% of 100 (the answer is 37%)

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Step-by-step explanation:

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Maria rents a car for one day. The charge is $30 plus the $0.15 per mile. She wants to spend

Levart [38]

Answer:

Maria can drive 400 miles.

Step-by-step explanation:

30 + 0.15x = 90

0.15x = 60

x = 60/0.15

x = 400

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3 years ago

A cleaning company uses 10 lbs each of chemicals A, B and C for each house it cleans. After some quality complaints, the company

umka21 [38]

Answer:

25%

Step-by-step explanation:

Let us first derive an equation for the productivity.

Given

No. of houses = 1 (Assumption)

Amount of Chemicals = 30 (10 x A, B, C)

Now the formula for productivity is as follow

Productivity % (P) = (Output/Input) * 100

Assuming the current productivity is 100%. We get the value for required output but using the value of 30 (Amount of Chemicals) as Input

$100 = \frac{x}{30}*100\\ x = 30$

Since we now know the value for desired output. We replace the value of input by 40, since 10 lbs of Chemicals have been increased per house.

$Productivity(P) = \frac{30}{40}*100\\ Productivity(P) = 75$

The new Productivity is 75%

There is a reduction of 25% in productivity

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4 years ago