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ira [324]
3 years ago
14

70% of a number is 98.

Mathematics
1 answer:
Anni [7]3 years ago
8 0
Set up the proportion:
70% - 98
90% - x

\frac{70\%}{90\%}=\frac{98}{x} \\
\frac{7}{9}=\frac{98}{x} \\
\frac{7}{9}x=98 \\
x=98 \times \frac{9}{7} \\
x=14 \times 9 \\
x=126

The answer is D. 126.
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One point on the trend line is 200,6 using this point and the y-intercept find the slope of the trend line.
Marina CMI [18]

Step-by-step explanation:

Use the formula (Y2 - Y1)/(X2 - X1) to find the slope between two points

We'll make Point 1 (which is X1 and Y1) the Y-intercept so

X1, Y1 = (0, 5.00)

And we'll make Point 2 (which is X2 and Y2) the point on the trend line

X2, Y2 = (200, 6.00)

Plug into the formula:

(6.00 - 5.00)/(200 - 0)

= 1/200 or 0.005

Slope: 1/200 or 0.005

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6 0
3 years ago
What is (1,5) and (-2,-1) in slope intercept form
Tasya [4]

Answer: y=2x+3

Step-by-step explanation:

y=mx+b

slope: 2

Y-intercept: 3

I'm sorry if this is wrong!

5 0
2 years ago
Tessa bought stock in a restaurant for $160.00. Her stock is now worth $224.00. What is the percentage increase in the value of
Gala2k [10]

Answer:

64.00 was incressed

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I dont understand this question, i did the factor of 36x^2 - 49 but I dont understand the second part
Nadya [2.5K]

Answer:

a = 6

b = 7

Step-by-step explanation:

Since both 36 and 49 are perfect squares, you can find their square roots which are 6 and 7.

To check to see if it is correct, replace the a with 6 and replace the b with 7, then evaluate the exponents.

8 0
2 years ago
What the vaule of x in the equation 3x-4y=65, when y =4
lana [24]

Answer: x=27


Step-by-step explanation:

3x-4(4)=65

3x-16=65

3x=65+16

3x=81

3x/3=81/3

X=27



7 0
3 years ago
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