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Wewaii [24]
2 years ago
10

What is the rate of change represented in the graph below?

Mathematics
1 answer:
Sever21 [200]2 years ago
4 0

Answer:

I'm confused you did not provide the graph that is referenced on this question...

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A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 lit
FromTheMoon [43]

Let

x-------> the amount of 2\% solution

y--------> the amount of 7\% solution

we know that

2\%=0.02\\7\%=0.07\\3.5\%=0.035

so

x+y=1

y=1-x -------> equation A

0.02x+0.07y=0.035 -------> equation B

substitute equation A in equation B

0.02x+0.07(1-x)=0.035

0.02x+0.07-0.07x=0.035

0.05x=0.035

x=0.7\ liters

find the value of y

y=1-x

y=1-0.7=0.3\ liters

therefore

The student need 0.7\ liters of 2\% solution and 0.3\ liters of 7\% solution

<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

8 0
3 years ago
Read 2 more answers
Solve. <br> x^2-15x+50<br><br> (x-5)(x+10)<br> (x+5)(x+10)<br> (x-10)(x-5)<br> (x-10)(x+5)
fgiga [73]
C.)<span>(x-10)(x-5)
and that is grouping the factors </span>
7 0
3 years ago
In the given diagram , TY is a tangent to the circle TVS . If &lt;SVT = 48° and |VS| = |ST| . What is &lt; VTY.​
ycow [4]

Answer:

  • 84°

Step-by-step explanation:

∠VTY is the tangent chord angle

  • Tangent chord angle is the half of the intercepted arc

∠TSV is the inscribed angle.

  • Inscribed angle is the half of the intercepted arc

<u>Since both of the mentioned angles refer to same arc, they are of same value.</u>

  • ∠VTY = ∠TSV

ΔTVS is isosceles as VS = ST, therefore the opposite angles are same.

  • m∠T = m∠V = 48°

<u>The measure of angle S</u>

  • m∠S = 180° - 2*48° = 84°

<u>The required angle</u>

  • m∠VTY = 84°
4 0
3 years ago
Read 2 more answers
Which statement best explains the relationship between numbers divisible by 9
AVprozaik [17]

Answer:

Step-by-step explanation:

A number divisible by 9 is also divisible by 3  because 3 is a factor of 9.

4 0
3 years ago
Fill in the missing factor to show that 2/3 equivalent to 8/12.
Studentka2010 [4]

Answer:

4/4

Step-by-step explanation:

2/3 * what = 8/12

Multiply the top and bottom by 4/4

2/3 *4/4 = 8/12

3 0
3 years ago
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