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3 years ago

2.394inches per minute about how many inches will it travel in 7.489minutes.

Mathematics

2 answers:

DedPeter [7]3 years ago

6 0

So the ratios would look like this:

2.394 inches : 1 minute

x inches : 7.489 minutes

You need to do this: 7.489*1*2.394.

= 7.489*2.394

≈ 17.929 inches.

mylen [45]3 years ago

6 0

Answer:

about 3.12 minutes

Step-by-step explanation:

7.489/2.394= 3.12

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Simplify the expression when x = -3 and y = 4.* x+y²

patriot [66]

Answer:

Step-by-step explanation:

x= -3 and y is 4 the two over the y means multiply by two meaning 8. Since its -3 you subtract 3 making it 5

3 0

3 years ago

The length of an object object in feet is equal to 3 times it’s linked in yards the length of wall water side slide is 48 feet r

-BARSIC- [3]

<h3><u>Question:</u></h3>

The length of an object in feet is equal to 3 times its length in yards. The length of a waterslide is 48 feet. Write and solve a multiplication equation to find the length of the waterslide in yards.

<h3><u>Answer:</u></h3>

The length of waterslide is 16 yards

<h3><u>Solution:</u></h3>

Given that,

The length of an object object in feet is equal to 3 times it’s length in yards

The length of wall water side slide is 48 feet

Let "y" be the length of object in yards

Write and solve a multiplication equation to find the length of the waterslides in yard

From given,

Length in feet = 3 times length in yards

$48 = 3 \times y$

<em><u>Therefore, the multiplication equation is:</u></em>

$3y = 48$

Solve the equation for "y"

Divide both sides of equation by 3

$\frac{3y}{3} = \frac{48}{3}\\\\y = 16$

Thus length of waterslide is 16 yards

4 0

3 years ago

A repairman leans the top of an 26 foot ladder against the

aleksandr82 [10.1K]

Answer:

653.91 squared or 326.955 not squared

Step-by-step explanation:

We have a hyponuse of 26 and one leg of 4.7 and we are trying to figure out the missing leg!

The first step is

A^2 + B^2 = C^2

2 step

4.7^2 + B^2 = 26^2

3 step

4.7 x 4.7 = 22.09 and 26 x 26 = 676

4 step

22.09 + B^2 = 676

5 step

676 - 22.09 = 653.91

6 step

Answer

653.91 squared or 326.955 not squared!

hope this helps

7 0

3 years ago

A cylindrical cattle water storage tank is 14 feet in diameter and 8 feet tall. About how many cubic feet of water is needed to

natka813 [3]

Answer:

Step-by-step explanation:

4 0

3 years ago

The number of newly reported crime cases in a county in New York State is shown in

JulsSmile [24]

Answer:

The linear regression equation that represents the set of data is:

$y=1083.48+23.73x$

The predicted number of new cases for 2013 is 1368.

Step-by-step explanation:

The general form of a linear regression is:

$y=a+bx$

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>a</em> = intercept

<em>b</em> = slope

Compute the values of <em>a</em> and <em>b</em> as follows:

$\begin{aligned} a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} = \frac{ 6857 \cdot 55 - 15 \cdot 17558}{ 6 \cdot 55 - 15^2} \approx 1083.476 \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} = \frac{ 6 \cdot 17558 - 15 \cdot 6857 }{ 6 \cdot 55 - \left( 15 \right)^2} \approx 23.743\end{aligned}$

The linear regression equation that represents the set of data is:

$y=1083.48+23.73x$

Compute the predicted value of the number of new cases for 2013 (i.e. <em>x</em> = 12) as follows:

$y=1083.48+23.73x$

$=1083.48+(23.73\times12)\\\\=1083.48+284.76\\\\=1368.24\\\\\approx 1368$

Thus, the predicted number of new cases for 2013 is 1368.

8 0

3 years ago