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Andre45 [30]
2 years ago
12

On Monday, Jill used 12 quart of paint in 34 hour. On Tuesday, Jill was distracted by texting and used 12 quart of paint in 54 h

our. What is the difference in her usage rates in quarts per hour?
A.14


B.23


C.415


D.1615
Mathematics
1 answer:
shepuryov [24]2 years ago
3 0

Answer:

(1/2) qt/(3/4) hr = (1/2)*(4/3) qt/hr = (2/3) qt/hr

The rule for division of fractions is: invert the denominator and multiply.

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Sean used 1-3/4 cup of sugar to make a dozen brownies. How many cups of sugare are used for 6 dozen brownies?
alisha [4.7K]

Answer:

10 1/2

Step-by-step explanation:

We need to convert 1 3/4 to an improper fraction

1 3/4 = (4*1+3)/4 = 7/4

Multiply this by the number of batches

7/4*6 = 42/4 = 21/2

Change this back to a mixed number

2 goes into 21   10 times with 1 left over

10 1/2

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3 years ago
TanA+tan(60+A)+tan(120-A)=3tan3A​
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Answer: not and identity

Step-by-step explanation:

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2 years ago
Using the given points, determine the slope. (5,-6)and(2,15)
Hunter-Best [27]
Subtract the y-coordinates. This is the rise.
Subtract the x-coordinates in the same order. This is the run.
Slope = rise/run.

Subtract the y-coordinates: -6 - 15 = -21. rise = -21
Subtract the x-coordinates in the same order:5 - 2 = 3. run = 3

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6 0
3 years ago
Iana started to evaluate the function f(x) = 2x2 – 3x + 7 for the input value 2.
Sati [7]
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Read 2 more answers
The area of the rectangle as a single expression
Ne4ueva [31]

Answer: A=15x^2+6x-48

Step-by-step explanation:

The area of a rectangle can be calculated with this formula:

A=l*w

Where "l" is the length and "w" is the width.

You can identify from the figure that the length and the width of this rectangle are:

length=3(x+2)\\width=5x-8

Then, you need to substitute this lenght and this width into A=l*w:

A=3(x+2)(5x-8)

Now, apply Distributive property:

A=(3x+6)(5x-8)\\\\A=15x^2-24x+30x-48

Finally, you need to add the like terms. Then, you get:

A=15x^2+6x-48

5 0
3 years ago
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