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vazorg [7]
3 years ago
12

1) A tank can be filled by one pipe in 9 minutes and drained by another pipe in 12 minutes. Write an equation that could be used

to determine how long it will take to fill the tank if the two pipes are open at the same time.
A. 1/9 + 1/12 = 1/t
B. 1/12 - 1/9 = 1/t
C. 1/9 - 1/12 = -1/t
D. 1/9 - 1/12 = 1/t
E. -1/9 - 1/12 = -1/t
F. -1/9 - 1/12 = -9/t

2) Determine how long it will take the fill the tank in question 1.
A. 44 minutes
B. 25 minutes
C. 18 minutes
D. 3 minutes
E. 36 minutes
F. 9 minutes

3) A tank can be filled by a pipe in 8 hours. The tank can be emptied by another pipe in 12 hours. If the pool is empty, and both pipes are open, how long will it take to fill the tank?
A. 24 hours
B. 30 hours
C. 18 hours
D. 14 hours
E. 27 hours
F. 32 hours

4) Type A cream is 18% butterfat and type B cream is 24% butterfat. Set up a table to help you determine how many quarts of each type of cream must be used to create a 90 quart mixture that is 22% butterfat.
Answers are the attached photos.

5) Solve the problem in question 4.
A. 40 quarts of Type A cream and 50 quarts of Type B cream are needed.
B. 60 quarts of Type A cream and 30 quarts of Type B cream are needed.
C. 24 quarts of Type A cream and 66 quarts of Type B cream are needed.
D. 30 quarts of Type A cream and 60 quarts of Type B cream are needed.
E. 18 quarts of Type A cream and 72 quarts of Type B cream are needed.
F. 35 quarts of Type A cream and 55 quarts of Type B cream are needed.

Thanks!

Mathematics
1 answer:
Triss [41]3 years ago
8 0

Answer:

1). 1/9 - 1/12 = 1/t

2). 36 minutes

3). 24 hours

4). 30 quarts of Type A cream and 60 quarts of Type B cream are needed

Step-by-step explanation:

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Anyone know how to do this
svlad2 [7]

Answer:

The area of the rectangle on the left side is

9cm \:  \times 4cm = 36 {cm}^{2}

The area of the bottom rectangle is

6cm \times 2cm = 12 {cm}^{2}

The total area of the composite figure will be

36 {cm}^{2}  + 12 {cm}^{2}  = 48 {cm}^{2}

Step-by-step explanation:

The area of any given rectangle can be found by multiplying the length of that rectangle by its width. The rectangle on the left side has a length of 9cm but the width is unknown. To find the width, we subtract 6cm from the width of the bottom rectangle: 10cm. And that gives us 4cm.

Therefore, we can now calculate the area to be: length × width = 9cm × 4cm = 36cm²//

The area of the bottom rectangle can be found similarly by multiplying the length: 2cm by the width: 6cm of that rectangle. And the result gives us: 2cm × 6cm = 12cm²//

The total area of the composite figure is calculated by adding the results from the left and bottom rectangles together. And that gives us: 36cm² + 12cm² = 48cm²//

8 0
3 years ago
Nancy had 16 chocolate candies in a bag. Her mother put a handful of candies in the bag. When Nancy counts her chocolate candies
ryzh [129]

The equation should look something like:


x+16 = 32


or



16+x = 32

5 0
3 years ago
Read 2 more answers
What is 5 4/8 + 3 5/8 equal?
tatiyna
9 1/8 
4/8+5/8=9/8=1 1/8
5+3=8
8+1 1/8=9 1/8

8 0
3 years ago
Read 2 more answers
Determine whether the underlined value is a parameter or a statistic. One of the greatest baseball hitters of all time has a car
Ad libitum [116K]

Answer:

B. The value is a parameter because the career at-bats of a baseball player are a population.

Step-by-step explanation:

The hitter had a career batting average of 0.366.

This value comes from information about the population of every time he has ever gone up to bat. Therefore, it is a parameter.

If on the other hand, we take the batting average of 5 games, the 5 games will be a sample and the batting average will be a statistic.

5 0
3 years ago
I have a few questions!<br> a) x−1.27=4.09<br> b) 2.3−y=2.301<br> c) t+3.04=14.3<br> d) 1.1+k=5.67
maks197457 [2]

Answer:

a.)  x = 5.36

b.)  y = - 0.001

c.)  t =  11.26

d.)  k =  4.57

Step-by-step explanation:

a) x−1.27=4.09

b) 2.3−y=2.301

c) t+3.04=14.3

d) 1.1+k=5.67

Solving. right?

a.)  x = 4.09 + 1.27 = 5.36

b.)  y = 2.3 - 2.301 = - 0.001

c.)  t = 14.3 - 3.04 =  11.26

d.)  k = 5.67 - 1.1  =  4.57

5 0
3 years ago
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