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storchak [24]
3 years ago
10

Subject: Finding Range Using a Graph

Mathematics
1 answer:
grigory [225]3 years ago
5 0

Answer:

4.7

Step-by-step explanation:

The red I think is hinting to the x.

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Pete wants to mix 4 quarts of 20% orange juice concentrate with some 60% pineapple juice concentrate to get a 50% punch concentr
Tamiku [17]

Pete starts with 4 quarts of 20% juice, which contains

0.20 • (4 quarts) = 0.8 quarts

of juice.

If he mixes this with <em>x</em> quarts of 60% juice, which contains

0.60 • (<em>x</em> quarts) = 0.6<em>x</em> quarts

of juice, then he would end up with a mixture with a volume of (<em>x</em> + 4) quarts that contains (0.8 + 0.6<em>x</em>) quarts of juice. The mix has to have a concentration of 50% juice, which means

(0.8 + 0.6<em>x</em>) / (<em>x</em> + 4) = 0.50

Solve for <em>x</em> :

0.8 + 0.6<em>x</em> = 0.50 (<em>x</em> + 4)

0.8 + 0.6<em>x</em> = 0.5<em>x</em> + 2

0.1<em>x</em> = 1.2

<em>x</em> = 12

So Pete needs 12 quarts of the 60% juice.

7 0
3 years ago
What is the value of (2 + 3i) + (6 - 4i)?
user100 [1]

Answer:

The answer is C

Step-by-step explanation:

(2 + 3i) + (6 - 4i) = 8 - i

3 0
3 years ago
Read 2 more answers
Which calculation IS equivalent to 12 x (24 + 17)?
Nitella [24]

The answer is d 41 X 12= 492

Step-by-step explanation:

12 (12 + 17)

12(41)

= 492

5 0
2 years ago
Is 4/5 greater than 9/19
ExtremeBDS [4]
Yes. I just did this question on a test actually
5 0
3 years ago
Jollibee employs a total of 10 cashiers and 15 kitchen crews. The manager selects a team of 2 cashiers and
Airida [17]

Answer:

The manager can select a team in 61425 ways.

Step-by-step explanation:

The order in which the cashiers and the kitchen crews are selected is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In how many ways can the manager select a team?

2 cashiers from a set of 10.

4 kitchen crews from a set of 15. So

T = C_{10,2}*C_{15,4} = \frac{10!}{2!(10-2)!}*\frac{15!}{4!(15-4)!} = 45*1365 = 61425

The manager can select a team in 61425 ways.

7 0
2 years ago
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