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Vera_Pavlovna [14]
3 years ago
7

I NEED HELP ASAP!!!!

Mathematics
1 answer:
N76 [4]3 years ago
8 0
1.5h is the answer you're looking for
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A scientist has two solution which she labelled, solution A and solution B, each continue salt,she knows that solution A is 65%
Lorico [155]
A = oz of the solution A

b = oz of the solution B



The scientist knows that solution A is 45% salt and solution B is 95% salt. She wants to obtain 80 ounces of a mixture that is 65% salt.



a + b = 80



0.45a + 0.95b = 0.65*80



by solving the above system of equations you'll find····



a = 48 oz



b = 32 oz

~I hope this helped~

If it doesn't make since, I can try to switch up the wording ^^

7 0
3 years ago
Can someone help me quickly with math hw?
Iteru [2.4K]
I need a question to answer first.

8 0
3 years ago
Will u help me?
sergey [27]

Answer:

Charles practiced for the relay race for D. 9 hours last week.

Step-by-step explanation:

First, I would find the ratios the ratios for converting hurdle to javelin and javelin to relay.

Hurdle : Javelin ; 5 : 1.5

Javelin : Relay ; 2.5 : 5 or  1 : 2

Next, find the factors compared to the original numbers for hurdle to javelin.

15 / 5 = 3

To find the amount of javelin time they did, multiply 1.5 by the factor we got, 3.

1.5 * 3 = 4.5

Finally, double 4.5, since Charles does twice as much relay than he does javelin.

4.5 * 2 = 9 hours

3 0
3 years ago
Explain how to find the upper quartile of a box-and-whisker plot.
kirza4 [7]
B. The upper quartile is the median of the upper half of the data.

if I am wrong please let me know.
8 0
3 years ago
Read 2 more answers
Write the point-slope form of an equation of the line through the points (-1, 4) and (-2, 2).
kozerog [31]

Answer:

Point-slope form: y-4=2(x+1)

Slope intercept form: y=2x+6

I hope this helps!

5 0
3 years ago
Read 2 more answers
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