Mathematics High School

John called a plumber to fix a leak in his bathroom. The
plumber charged $30 to come to the house and $25 an hour
while fixing the leak. If the final bill was $105, how many
hours was the plumber at John's house?

Answers

Answer 1

Answer:

3 hours

Step-by-step explanation:

$105 - $30 = $75

$75 ÷ $25 = 3 hours

Related Questions

Find value of X please​

Answers

Answer:

x=7

Step-by-step explanation:

Step #1- Set the two lines equal to each other

10+12=x+15

Step #2- Solve for the line you have all values for

10+12=22

Step#3- Plug 22 back into the equation where the two lines are set equal to each other

22=x+15

Step #4- Solve for X algebraically

22=x+15

22-15=x

7=x

If it is 7:25 A.M. and Antonio started his run 25 minutes ago, what time did Antonio start running?

Answers

7:00 lololololololollololol

What is the value of the expression (30 - 6b) when b is 3.5

Answers

Answer:

9

Step-by-step explanation:

30 - 6(3.5)

30 - 21

9

I need some help on this

Answers

Answer:

y = 0

Step-by-step explanation:

what is bd?
(b is far off to the left but was cut out because image was too big) ​

Answers

Answer:

bd is a medical term meaning twice a day

If you bought a stock last year for a price of $139, and it has risen 5.4% since
then, how much is the stock worth now, to the nearest cent?
PLS ANSWER I HAVE LITTLE TIME

Answers

Answer:

To the nearest cent, the stock will be worth $ 146.51

Step-by-step explanation:

Hope this helped ;)

HELP WILL GIVE 15 POINTS, GOOD RATING AND BRAINIEST

Answers

This is 5 points not 15 smh

Joe is saving for a new online video game. He has some money already in his savings, and he can add $2.50 each week. This relationship is shown in the graph. Write an equation and explain what the slope and the y-intercept mean in this situation?

Answers

Answer:

Y=2.50×+b

Step-by-step explanation:

y-intercept and put that into b and theres ur equation the y- intercept (B) represents the initial money that joe had in his savings the 2.50× part or the slope is the money that he states he can add each week.

♡Have a nice day♡

What is the slope of the line 3y=6x-1

Answers

Answer:

2

Step-by-step explanation:

Simplify 3y=6x+1;

y=2x-1/3

y=mx+b , where m represents the slope.

Slope; 2

Answer:

slope=2

Step-by-step explanation:

PLEASE HELP!! Thank you in advance.
The formula for the lateral surface area of a cylinder is S=2πrh , where r is the radius of the bases and h is the height.

Solve for h.

Answers

Answer:

Solving for h gives us:

[tex]h = \frac{S}{2\pi r}[/tex]

Step-by-step explanation:

Given that

Lateral surface area of cylinder = S = [tex]2\pi rh[/tex]

Solving the equation or formula for a particular variable involves isolating the variable on one side of the equation without any factor or denominator.

In the given formula:

Dividing both sides by 2πr

[tex]\frac{S}{2\pi r} = \frac{2\pi rh}{2\pi r}\\h = \frac{S}{2\pi r}[/tex]

Hence,

Solving for h gives us:

[tex]h = \frac{S}{2\pi r}[/tex]

A) An empty bulldozer weighed 5 8 ⁄10 tons. If it scooped up 7 1 ⁄10 tons of dirt, what would be the combined weight of the bulldozer and dirt?











B) Gwen's new puppy weighed 8 5 ⁄8 pounds.Her new kitten weighed 2 2 ⁄8 pounds. How much more did the puppy weigh than the kitten?









C) Amy walked 2 5 ⁄6 miles in the morning and another 3 3 ⁄7 miles in the afternoon. What was the total distance she walked?








D) A recipe called for using 2 6 ⁄8 cups of flour before baking and another 3 1 ⁄2 cups after baking. What is the total amount of flour needed in the recipe?









E) 113 – 2







F) 215 – 4

Answers

Answer: 12 9/10 and 10 7/8

Step-by-step explanation:

5 8/10 plus 7 1/10 equals 12 9/10

8 5/8 plus 2 2/8 equals 10 7/8

PLEASE HELP describe the slope of a line then find the slope

Answers

Answer:

0?

Step-by-step explanation:

the line is fully horizontal meaning there isn't a slope

Triangle MNO on a coordinate plane is translated 6 units up to create triangle M' N' O'. Which one of the following rules describes this transformation? Help

Answers

Answer:

you answered correct it is d

Step-by-step explanation:

5(3x+ 9)−2x = 15x−2(x−5)

Answers

Answer:

yes

Step-by-step explanation:

The three sides of a triangle are in the ratio 2:4:5. If the perimeter is 22 m, find the
length of the shortest side.

Answers

Answer:

what are primary numbers

Answer:

the length of the shortest side would be 4

Step-by-step explanation:

2:4:5

2 + 4 + 5 = 11

4 + 8 + 10 = 22

4:8:10

what is an equation of the line that passes through the points 0,-1 and 6,1
put answer in fully reduced form

Answers

Answer: x - x1/ x2- x1 = y -y1 / y2-y1

x - 6/ -6-6= y - 1/ -1 -1

x -6/-12 = y -1 /-2

-2(x-6) = -12 (y-1)

-2x +12 = -12y +12

12y = 2x +12-12

y= 2x/12

y= x/6

Step-by-step explanation:

Answer:

y=1/3x-1

Step-by-step explanation:

y= 1 over 3x minus 1

Please help me with this one ☝️

Answers

Wjebbeevbejejeeheb ienebebdebeh it IS BBB TRUST NE

if x+y=12,and xy =22,find x^2+y^2​

Answers

Here,

x+y=12 and xy=22

we know that,

[tex]\tt{(x+y)^2=x^2+y^2+2xy }[/tex] ⠀

according to the question,

[tex]\tt{ (12)^2=x^2+y^2+2×22 }[/tex] ⠀

[tex]\tt{ x^2+y^2=144-44 }[/tex] ⠀

[tex]\tt{x^2+y^2=100 }[/tex] ⠀

244×6=4×....
Yukarıdaki matematiksel ifade de eşitliğin sağlanabilmesi için noktalı yere hangi sayı gelmelidir ? acil​

Answers

Answer:

a)366

Step-by-step explanation:

244×6=1464÷4=366

Arrange numbers in ascending order (smallest on top, largest at the bottom)
38, 175, 0, -50, -49
A) 175
B) 38
C) -50
D) -49

Answers

Answer:

1. -50

2. -49

3. 38

4. 175

Step-by-step explanation:

hope it helps

Answer:

C,D,B,A

Step-by-step explanation:

The more the negitive number is, it's smaller. So, the answer would be C,D,B,A

What two equations have a solution of (3, 6)

Answers

Answer:

y=2x and y=-x+9

Step-by-step explanation:

Kasha drove 135 miles and used 5.4 gallons of gas . The fuel efficiency of her car remains consistent and gas costs $2.59 per gallon, how much money can she expect to fill up her tank for an upcoming 300-mile roadtrip?

Answers

Answer:

31.80

Step-by-step explanation:

12 x 2.59 =$31.08

Can you guys help me ?

Answers

The graph should look like this
Pattern for each point is up 2 over 3 because the slope is 2/3


When y = 30, x = 6
a)
Work out an equation connecting
and x.

Answers

Answer:

y+x=36

Step-by-step explanation:

Answer:

30=k6

Step-by-step explanation:

because it is directly proportional, it has to be written as y=kx

i hope i helped

please mark it as brainliest!!<3

5. From the choices below, choose an expression that is equivalent to the
expression below.
22

Answers

Answer: -(22/4)

Step-by-step explanation:

BRAINLIEST IF RIGHT Solve for y
-4(y-2)=12
Y = 6
Y = -4
Y = -2
Y = -1

Answers

Answer:

-1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−4(y−2)=12

(−4)(y)+(−4)(−2)=12(Distribute)

−4y+8=12

Step 2: Subtract 8 from both sides.

−4y+8−8=12−8

−4y=4

Step 3: Divide both sides by -4.

−4y

−4

=

4

−4

y=−1

Answer:

Step-by-step explanation:

Here you go mate

PEMDAS

Parenthesis

Exponent

Multiplication

Division

Addition

Subtraction

Step 1

-4(y-2)=12  Remove parenthesis

-4y+8=12

Step 2

-4y+8=12  Subtract -8

-4y=4

Step 3

-4y=4  Divide both sides by 4

-4/4+4/4

answer

y=-1

Question 3
1 pts
Question 19
How many sides does a regular polygon have if the measure of each interior angle is 160
degrees?
[blank1]
Question 4
4 pts

Answers

Answer:

18

Step-by-step explanation:

each exterior angle=180-160=20

number of sides=360/20=18

If f(x) = -2x^2 + 3 then f (-3) =
1) -15
2) 21
3) 39
4) -18

Answers

Answer:

1) -15

Step-by-step explanation:

Hi there!

In order to solve this problem, plug in -3 for all the x-values.

Your equation will become[tex]-2(-3)^2 +3.[/tex]  

Now all you have to do is solve!

[tex]-2(9) + 3[/tex]

[tex]-18 + 3[/tex]

[tex]-15[/tex]

f(-3) = -15

I hope this helped!

What is a square plus b square equal c square

Answers

That is the Pythagorean’s theorem, used to find the largest side on a right (90 degree) triangle.

Subtact: (9x + 5) - (4x + 3)​

Answers

Answer:

5x+2

Step-by-step explanation:

(9x+5)-(4x+3)

5x+2

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