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Igoryamba
3 years ago
14

fifteen children voted for their favorite color. the votes for red and blue together were double the votes for green and red. Ho

w did the children vote?
Mathematics
1 answer:
stira [4]3 years ago
4 0
Five voted for green or yellow and 10 voted for red or blue
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Coffee beans worth $ 10.50 $10.50 per pound are to be mixed with coffee beans worth $ 13.00 $13.00 per pound to make 50 50 pound
MAVERICK [17]

Answer: 30 pounds of coffee beans worth $10.50 per pound was used.

20 pounds of coffee beans worth $13.00 per pound was used.

Step-by-step explanation:

Let x represent the number of coffee beans worth $10.50 per pound that should be mixed.

Let y represent the number of coffee beans worth $13.00 per pound that should be mixed.

50 pounds of beans worth $11.50 per pound is to be made. The total cost of the mixture would be

50 × 11.5 = 575

This means that

10.5x + 13y = 575 - - - - - - - 1

The total number of pounds of each type of coffee used is 50. This means that

x + y = 50

Substituting x = 50 - y into equation 1, it becomes.

10.5(50 - y) + 13y = 575

525 - 10.5y + 13y = 575

- 10.5y + 13y = 575 - 525

2.5y = 50

y = 50/2.5 = 20

x = 50 - 20= 30

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3 years ago
At a glass vase store, 8 out of the last 20 vases shipped were chipped.
Juli2301 [7.4K]

Answer:

Step-by-step explanation: I have no idea

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Help find DC Please
Ymorist [56]

Answer:

Step-by-step explanation:

3 0
3 years ago
A cookie factory uses 1/5 of a bag of flour in each batch of cookies. The factory used 3/5 of a bag of flour yesterday. How many
Anni [7]
The factory made 3 batches of cookies. 
(See my work below)

7 0
3 years ago
Read 2 more answers
Helppppp plsss solve for x
pogonyaev
The two triangles we can see in the diagram are similar, which means that their measurements are proportional. Line MN on the larger triangle MNP is 71.5ft long, and its corresponding line, MA, on the smaller triangle is 71.5-22= 49.5ft long. This means that the scale factor from the bigger to the smaller triangle is 71.5/49.5=13/9.
If line MP on the bigger rectangle is 97.5ft long, then its corresponding line, MB, must be 97.5÷13/9=67.5 ft long.
Therefore, x=67.5 ft
8 0
3 years ago
Read 2 more answers
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