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3 years ago

The area of Hawaii is 40.47x100 square kilometers. What is Hawaii's area?

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

40.47×100=4047 so just multiply it and the the answer is 4047

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Write and solve an equa

MariettaO [177]

Answer:

Steven is 15 and one half years old now

Step-by-step explanation:

Linear equations

Sometimes we need to know the value of a variable in a given equation and that variable is given as a polynomial of degree 1. Solving for that variable means isolating it and replacing the other known values

Steven was 7 years old eight and one-half years ago. If we call x as the actual age of Steven, his age eight and one-half years ago was

$x-8\frac{1}{2}$

We know he was 7 years old then, so

$x-8\frac{1}{2}=7$

We need to know his actual age, so let's solve for x, adding $8\frac{1}{2}$ to each side of the equation

$x-8\frac{1}{2}+8\frac{1}{2}=7+8\frac{1}{2}$

Simplifying

$x=15\frac{1}{2}$

Steven is 15 and one half years old now

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3 years ago

Write a linear equation that goes through the points (0,4) and (4,10). A. y =3⁄2x + 4 B. y =3⁄2x – 4 C. y =2⁄3x – 4 D. y =2⁄3x +

Elena L [17]

Answer:

Step-by-step explanation:

To write the equation, find the slope of the line using the two points. Find the difference in y values over the difference in x values.

$\frac{y_2-y_1}{x_2-x_1} = \frac{10-4}{4-0}=\frac{6}{4}=\frac{3}{2}$

Write the equation using the slope m=3/2 and the point slope form.

$y-y_1=m(x-x_1)\\y-10=\frac{3}{2}(x-4)$

This is the equation of the line. You can convert it to slope intercept form:

$y-10=\frac{3}{2}(x-4)\\y-10 = \frac{3}{2}x - 6\\y=\frac{3}{2}x +4$

4 0

3 years ago

Find the other endpoint of the line segment with the given endpoint and midpoint.

BARSIC [14]

Answer:

Step-by-step explanation:

16, -11

6 0

2 years ago

A math teacher’s midterm is worth 200 points. The mean of the test is 143 and the standard deviation is 15.7. If the scores have

Klio2033 [76]

The answer is D: about 95%.

7 0

3 years ago

Read 2 more answers

3 4/7 minus 2 1/5 by rounding to the nearest half

mylen [45]

Answer:

$1 \frac{13}{35}$

Step-by-step explanation:

$3 \frac{4}{7} - 2 \frac{1}{5}$

you can solve for the fractions first, but you have to give them a common denominator

$\frac{20}{35}- \frac{7}{35}$

$= \frac{13}{35}$ which is in simplest form

then solve for the whole numbers

3-2=1

therefore, the answer is $1 \frac{13}{35}$

6 0

3 years ago