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dimulka [17.4K]

3 years ago

10

1. There are 420 students at Virginia Middle School. The ratio of girls to boys is 4 to 3. Exactly how many more girls are there

than boys at Virginia Middle School?

1 answer:

Assoli18 [71]3 years ago

6 0

The answer would be 60

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A flying disc has a 12 3/4 inch radius. What is the approximate circumference, rounded to the nearest inch?

Umnica [9.8K]

Answer:

12.34

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Can you turn this sentence into an equation please? Three times twenty one more than a number is twelve. What is that number?

Zanzabum

X + 3 * 21 = 12
x + 63 = 12
x = 12-63
x = -51
The wording was a little odd, but I hope this is what you’re looking for!

3 0

4 years ago

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A man traveled 24 miles in 20 minutes and 18 miles in 15 minutes. Assume that the distance varies linearly with time. How far wi

Norma-Jean [14]

Step-by-step explanation:

First we need to get his speed:

speed = distance / time

If he travelled 24 miles in 20 mintues, his speed is 24 / 20 = 1.2 miles per minute

If he travelled 18 miles in 15 minutes, his speed is 18 / 15 = 1.2 miles per minute

Those two should give us the same answer since it says that the distance varies linear with time, which means that his speed is constant.

Then after 30 minutes he will have traveled: 1.2 x 30 = 36 miles

please mark me as brainliest

4 0

2 years ago

The point-slope form of the equation of line that passes through points (8, 4) and (0, 2) is y - 4 = 1/4(x -8). What is

Mekhanik [1.2K]

Answer:

y = 1/4x +2

Step-by-step explanation:

The slope-intercept form of the equation for a line can be found by solving the given equation for y. It can be written directly from the slope and the y-intercept.

<h3>Solve for y</h3>

It is helpful to simplify the equation first, then isolate the y-variable by eliminating non-y terms from that side of the equation.

y -4 = (1/4)(x -8) . . . . . . . given

y -4 = (1/4)x -2 . . . . . . . . eliminate parentheses

y = 1/4x +2 . . . . . . . . . . add 4. This is the desired form

<h3>Use given information</h3>

Alternatively, you can use the given information to write the slope-intercept equation directly. The slope in the point-slope form is the multiplier outside parentheses. In y-4 = 1/4(x -8), the slope is 1/4.

The y-intercept is the point where the line crosses the y-axis. Its coordinates always have an x-coordinate of 0. That is, the given point (0, 2) tells you the y-intercept is 2.

Using the slope and intercept in the slope-intercept form, you get the equation you're looking for:

y = mx +b . . . . . line with slope m and y-intercept b

y = 1/4x +2 . . . . . line with slope 1/4 and y-intercept 2

8 0

2 years ago

Which ordered pair makes both inequalities true?

kvasek [131]

Answer:

(3, 0)

Step-by-step explanation:

Given the inequality y > -2x + 3 and y ≤ x - 2

The graph of the inequalities are plotted using the geogebra graphing online calculator.

The portion of the graph that is shaded with dark blue, represents the portion that supports the equation.

All the ordered pair points given in the question are also labelled in the graph.

From the graph we can see that only point (3, 0) falls in the area that supports the equation. Hence (3, 0) makes both inequalities true.

6 0

3 years ago