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balu736 [363]
2 years ago
6

Kai and Julio put their money together and bought a electronic game.

Mathematics
2 answers:
bazaltina [42]2 years ago
7 0

Answer: A is 55  B is 101.25

Step-by-step explanation:

mojhsa [17]2 years ago
7 0
<h2>Use QUIZLET! I think that's what its called. Sorry if this doesn't help.</h2>

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PLEASE EXPLAIN...WILL MARK BRAINLIEST FOR BEST ANSWER
Ira Lisetskai [31]

Answer:

  • a(x) = 20 + 0.60x
  • domain [0, 50]; range [20, 50]
  • maybe

Step-by-step explanation:

a) If x liters are removed from a container with a volume of 50 L, the amount remaining in the container is (50 -x) liters. Of that amount, 40% is acid, so the acid in the container before any more is added will be ...

  0.40 × (50 -x)

The x liters are replaced with 100% acid, so the amount of acid that was added to the container is ...

  1.00 × (x)

Then after the remove/replace operation, the total amount of acid in the container is ...

  a(x) = 0.40(50 -x) +1.00(x)

  a(x) = 20 +0.60x . . . . . liters of acid in the final mixture

__

b) The quantity removed cannot be less than zero, nor can it be more than 50 liters. The useful domain of the function is 0 ≤ x ≤ 50. (liters)

The associated range is 20 ≤ a ≤ 50. (liters)

__

c) As we found in part b, the amount of acid in the final mixture may range from 20 liters to 50 liters. So, the percentage of acid in the final mix will range from 20/50 = 40% to 50/50 = 100%. The mixture could be 50% acid, but is not necessarily.

5 0
3 years ago
Please help me with trigonometry
NeX [460]

Answer:

cos R = .38

Step-by-step explanation:

First you need to find the length of the hypotenuse.

Use a squared + b squared = c squared

100 + 576 = c squared

square root of 676 is 26

CosR is adjacent over hypotenuse.

Adjacent is 10

Hypotenuse is 26

10/26 = .38

3 0
3 years ago
- The water level of a lake fell by 13 inches during
bezimeni [28]

Answer:

r = - 13 / 15 inches/week

Step-by-step explanation:

The numerator is 13

and the denominator is 15, then we have

r = - 13 / 15 inches/week

r < 0 since the water level of the lake fell

6 0
3 years ago
the disk in the hard drive of Stella's computer makes 90 full turns every second. How many minutes will it take for the disk to
noname [10]
First we have to divide 135,000 by 90, which equals 1,500.  Then we divide 1,500 (seconds) by 60 (60 seconds in a minute) and get: 25 Minutes.
8 0
3 years ago
there are 12 boys and 13 girls in a class. There are 10 boys and 15 girls in a second class. what is the probability that both s
o-na [289]
22 out of 50 would be the answer
3 0
3 years ago
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