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3 years ago

A plumber charges $47.50 per hour plus a

Mathematics

1 answer:

aniked [119]3 years ago

5 0

Answer:

445 dollars

Step-by-step explanation:

You are given he charges 47.5 per hour so 47.5x is how much you will pay for x hours and he charges a 65 dollar service fee.

So together he is charge you 47.5x+65 for x hours.

If it spends 8 hours, the cost will be 47.5(8)+65=445.

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Calculate the area of a circle with a dime tier of 16cm pi=3

Mashcka [7]

The area of every circle is (pi) (radius²) .

Radius = 1/2 of the diameter, so the area of your circle is

(pi) x (8 cm)² = 201 cm² . (rounded)

(pi) is not 3 . There's nothing wrong with approximating (pi),
but 3 is more than 4.5% wrong, and that's too much. There's
no reason why 3.14 should be too hard to handle.

7 0

3 years ago

Read 2 more answers

The equation y=2x+3 represents the cost y (in dollars) of mailing a package that weighs x pounds. a. Graph the equation. b. Usin

FinnZ [79.3K]

Answer:

B. Slightly more than $5

Step-by-step explanation:

y = 2x + 3

Firstly we check variables to make sure we understand.

y = dollars

x = pounds

On the scale, it says 1.126 lb. Which means 1.126 pounds.

And so, x = 1.126

y = 2x + 3

y = 2(1.126) + 3

y = 2.252 + 3

y = 2.252

The graph for part a and park b. It is underneath. I wrote 1.1, because it is rounded down from 1.126 lb, which is part b. The one with one line and no dots is part a.

4 0

2 years ago

Explain how to add linear expressions without using numbers in you explanation.

yanalaym [24]

Answer:

Like terms

Same number of equations as unkowns

Step-by-step explanation:

To add linear equations you need the amount of equations to match the number of unknowns.

The equations must have like terms.

All like terms will be added to each other and might even cancel out and solve one term if equal terms have opposite signs.

6 0

3 years ago

Anthony found a sweater on sale for 15% off! The discount price of the sweater before tax is $22.74. What is the regular price o

kiruha [24]

9514 1404 393

Answer:

$26.75

Step-by-step explanation:

The after-discount price is 85% of the original price. So, the original price is ...

0.85 × p = 22.74

p = 22.74/0.85 = 26.75 . . . . . divide by the coefficient of p

The regular price is $26.75.

8 0

2 years ago

Points A and B are to be mapped onto a number line according to two equations. The solutions to the equation 2/3A=-24 is the coo

Ymorist [56]

Answer:

$\boxed{A=-36} \\ \\ \boxed{B=4}$

Step-by-step explanation:

In mathematics, a number line is graph of a straight line that shows a representation of real numbers. In this problem, points A and B are to be mapped onto a number line according to two equations. So we can find these two points by isolating A from the first equation and B from the second one as follows:

$\frac{2}{3}A=-24 \\ \therefore A=\frac{3(-24)}{2} \\ \\ \therefore \boxed{A=-36}$

$20=\frac{-B}{0.2} \\ \\ \therefore B=-(0.2)(20) \\ \\ \therefore \boxed{B=4}$

4 0

3 years ago