Ask question

Ask question

All categories

3 years ago

11

Suppose that 18 inches of wire costs 54 cents.

2 answers:

matrenka [14]3 years ago

8 0

Answer:

162 cents

Step-by-step explanation:

18 times 3 to get 54 then do 54 times 3 is 162

Zinaida [17]3 years ago

4 0

Answer:

159 cents

Step-by-step explanation:

divide the cost of 18 inches (54) by 18 inches to get the price per inch of wire. That leaves you with 3. Multiply the price per 1 inch (3 cents) by the amount of wire you need (53 inches) to get your price of 159 cents.

You might be interested in

A line passes through point A (14,21). A second point on the line has an x-value that is 125% of the x-value of point A and a y-

seropon [69]

Answer:

The equation of the line in point-slope form is $y-21 = - \frac{3}{2}\cdot (x-14)$ .

Step-by-step explanation:

According to the statement, let $A(x,y) = (14,21)$ and $B(x,y) = (1.25\cdot x_{A},0.75\cdot y_{A})$ . The equation of the line in point-slope form is defined by the following formula:

$y-y_{A} = m\cdot (x-x_{A})$ (1)

Where:

$x_{A}$ , $y_{A}$ - Coordinates of the point A, dimensionless.

$m$ - Slope, dimensionless.

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

In addition, the slope of the line is defined by:

$m = \frac{y_{B}-y_{A}}{x_{B}-x_{A}}$ (2)

If we know that $x_{A} = 14$ and $y_{A} = 21$ , then the equation of the line in point-slope form is:

$x_{B} = 1.25\cdot (14)$

$x_{B} = 17.5$

$y_{B} = 0.75\cdot (21)$

$y_{B} = 15.75$

From (2):

$m = \frac{15.75-21}{17.5-14}$

$m = -\frac{3}{2}$

By (1):

$y-21 = - \frac{3}{2}\cdot (x-14)$

The equation of the line in point-slope form is $y-21 = - \frac{3}{2}\cdot (x-14)$ .

5 0

3 years ago

A photocopy machine can print 405 copies in 9 minutes. what is the unit rate the machine can produce in 1 minute

Zolol [24]

Answer:45

Step-by-step explanation: divide 405 by 9

3 0

3 years ago

How to find the x and y intercepts for linear equations

balandron [24]

Answer:

plug in 0 for y and solve for x

to find y plug in 0 for x

Step-by-step explanation:

6 0

3 years ago

Please help me with these two math questions! Thank you ! :)

notka56 [123]

I think it might be c hope that helps you

5 0

3 years ago

Han has 4 dimes. What percent of a dollar does Han have?

Mama L [17]

Answer:

40%

Step-by-step explanation:

4 dimes = 40 cents

1 dollar = 100 cents

40 $\frac{40}{100}$ = 40%

7 0

3 years ago