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DanielleElmas [232]
3 years ago
6

A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution available.

Mathematics
1 answer:
True [87]3 years ago
5 0

Answer:

hindi ko po maintin dihan sorryyyyyyyyyy

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The perfect squares between 2 and 17.
postnew [5]

Answer:

4...9...16

Step-by-step explanation:

2^{2}=4

3^{2}=9

4^{2}=16

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3 years ago
18 of the 30 horses were blue what percent of the Horseshoe blue
Minchanka [31]
18 divided by 30 equals .6
0.6=60%
Hope this helps and please give brainliest!
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3 years ago
What is a 8096 rounded to 1 significant figure<br>​
guajiro [1.7K]

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Y Me Angry U Hungry Me And Me Angry Way Back together Me Y He Angry Me He Angry Me Angry:(

5 0
3 years ago
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Find the point on the parabola y^2 = 8x at which the ordinate is double the abscissa.​
aliya0001 [1]

Answer:

Step-by-step explanation:

Let's make a complex of functions

y^2 = 8x

y = 2x

Now let's solve it

(2x)^2 = 8x

4x^2 - 8x = 0

4x(x - 2) = 0

x = 0, 2

y = 0, 4

So the answer is (2, 4)

Hope you like it, study well

3 0
3 years ago
The current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel
JulijaS [17]

If the current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel 49 miles upstream then the speed of the boat in still water is 21 miles per hour.

<h3>What is speed?</h3>

Speed is the distance covered by an object in a certain time period. It is also known as velocity. The formula of speed is as follows:

Speed=Distance/ Time.

<h3>How to calculate speed?</h3>

We have been given that the speed of stream is 7miles per hour.

Let v be the speed of the boat, and t the time to travel

98=t*(7+v) (1)

49=t(v-7) (2)

(1)+(2) => 2tv=147

7t+(49+7t)=98

14t+49=98

14t=49

t=49/14

t=7/2

Put the value of t in equation 1 to get the value of v:

98=t(7+v)

98=7/2(7+v)

196/7=7+v

28=7+v

v=28-7

v=21

Hence if the current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel 49 miles upstream then the speed of the boat in still water is 21 miles per hour.

Learn more about speed at brainly.com/question/4931057

#SPJ2

6 0
1 year ago
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