Question 1.how to find simple interest

Mathematics

1 answer:

maria [59]4 years ago

7 0

Answer:

answer for qn.1

Simple Interest Formulas and Calculations:

Use this simple interest calculator to find A, the Final Investment Value, using the simple interest formula: A = P(1 + rt) where P is the Principal amount of money to be invested at an Interest Rate R% per period for t Number of Time Periods.

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What is the solution to the equation 1/4x-1/8=7/8+1/2x?

PolarNik [594]

First multiply them all by 8
2x - 1 = 7 + 4x
Subtract 2x
-1 = 7 + 2x
Subtract 7
-8 = 2x
Divide by 2
X = -4

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3 years ago

What percent of $200 is $40?

forsale [732]

To find the answer to the question we do the equation $40/200*100$

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4 years ago

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Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about

LenKa [72]

Answer:

Coefficient of determination = 0.149769

Step-by-step explanation:

We are given the following in the question:

Coefficient of correlation, r = -0.387

We have to find the coefficient of determination.

Coefficient of determination =

$r^2 = (-0.387)^2 = 0.149769 = 14.98\%$

Coefficient of determination:

It tells us about the variation explained in the model.
This correlation of determination tells that 14.98% of the variation is explained in the model that is we can say that the independent variable explains 14.98% changes or prediction in the dependent variable.
It ranges from 0 to 1 and a correlation of determination of 1 means that the dependent variable is 100% predicted by the independent variable.
Correlation of determination of 0 means that the dependent variable cannot be predicted by the independent variable.

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3 years ago

in an election about 500,000 people voted in all which number could be the exact number of people who voted in the election

GREYUIT [131]

I think this question is asking for the closest number to 500,000, which is 533,736. I don't know how to show work for this, except for saying this number is about 33,000 away from 500,000 which is the closest out of 429,455, 441,689, 533,736, and 550,198.

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4 years ago

Write the equation in slope-intercept form of the line passing through (2,7) and (-5,2).

sasho [114]

Hello!

Explanation:

Slope-intercept form: → $y=mx+b$