A plumber charges his customers $90 for each hour he works. If Mr. Hall's bill for
plumbing services is $855, which equation could be used to determine the number of
hours the plumber worked?
Answers
The equation that represents the number of hours the plumber worked is
90(x) = 855.
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Given, A plumber charges his customers $90 for each hour he works.
Assuming the no. of hours to be 'x'.
∴ The equation that represents the number of hours the plumber worked is
90(x) = 855.
learn more about equations here :
https://brainly.com/question/29657992
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Related Questions
The diver's actions can be represented by the subtraction equation 3-4 = -1
1. Write a related addition sentence for the subtraction sentence.
Answers
4 + (-1) = 3
Answer:
jdtttttttttttttttttttjjfjyk
Step-by-step explanation:
thanks.
A bus is known to arrive every 10 minutes on average at a certain bus stop. You arrive at the bus stop, hoping to catch the bus. How long are you expected to wait for the bus
Answers
Answer:
10 minutes maximum
Step-by-step explanation:
well, based on the condition/fact that the bus takes and average of 10 minutes to arrive at a bus stop, you can assume that the previous bus just left(that is worst case scenario), so might have to weight for 1o minutes to get a bus.
Hence for the worst case it is expected that you would have to wait for 10 minutes maximum for the next bus to arrive, or you might even wait for a shorter time.
Holly checked her answer to a division problem by estimating the quotient which is the best estimation of the quotient 23.564 divided by 5.97
Answers
Answer: The best estimation is 4
Step-by-step explanation: I rounded 23.564 to 24 and I rounded 5.97 to 6. I did 24 divided by 6. I got 4.
Answer:
A
Step-by-step explanation:
Are 12:21 and 7:16 equivalent
Answers
Answer:
no
Step-by-step explanation:
12/21 is not equal to 7/16
Divide.
5/6 ÷ -2/3
A. -5/4
B. -5/9
C. 5/9
D. 5/4
Answers
Answer:
the answer is A
Step-by-step explanation:
i think this is the answer
The perimeter of the rectangle below is 176 units. Find the value of x.
3x + 1
4x + 3
Answers
3x+1=4x+3 which gives you -2
Evaluate q - r if q = -14 and r=-6.
Answers
Answer:
-8
Step-by-step explanation:
q - r
-14 - (-6)
-14+6
-8
Convert 0.119cL to L
Answers
Elena walked 12 miles and then she walked 1/4 that distance how far did she walk together
Answers
Answer:
15 miles
Step-by-step explanation:
1/4 = .25
12 ÷ 4 = 3
12 + 3 = 15
Answer:
12 1/4 miles
Step-by-step explanation:
Convert the mixed number to a fraction and reduce 7 2/8
Answers
Answer:
29/4
Step-by-step explanation:
7 2/8
58/8=29/4
Answer:
29/4
Step-by-step explanation:
multiply 7 and 8 which is 56 then add 2 which will be 58 for the numerator, the denominator stays the same. 58/8 simplify by dividing 58 divided by 2 and 8 divided by 2 which will get u the answer as 29/4
Pls mark as brainliest thank you, have a nice day!!!!
a square has a side length represented by the expression 2x + 5. write the expression that represents the area of the square
Answers
Answer:
4x+25
I hope this helped ;)
Cam can't figure what to eat. He is going to randomly select a piece of fruit from his pantry. These are 4 apples and 5 bananas in his pantry.
Answers
Answer:
the total number of fruits are 4+5=9
probability of picking an apple 4/9
probability of picking a banana 5/9
Answer:
0.44
Step-by-step explanation:
P(select an apple)= 4/9 = 0.44
Khan Academy
Which of the following measurements is
smallest?
a. 12 inches
b. 216 inches
c. 412 inches
d. 12/4 inches
Answers
According to a random sample taken at 12 A.M., body temperatures of healthy adults have a bell-shaped distribution with a mean of F and a standard deviation of F. Using Chebyshev's theorem, what do we know about the percentage of healthy adults with body temperatures that are within standard deviations of the mean? What are the minimum and maximum possible body temperatures that are within standard deviations of the mean? At least nothing% of healthy adults have body temperatures within standard deviations of F. (Round to the nearest percent as needed.)
Answers
Answer:
At least 89% of the data
Minimum = 96.34 F
Maximum= 100.06 F
Step-by-step explanation:
According to the Chebyshev's theorem 89% of the data are within the 3 standard deviations of the mean.
The mean body temperature is 98.20 F and standard deviation is 0.62 F
Mean- 3SD= 98.20 F- 3(0.62)= 98.20 F- 1.86= 96.34 F
Mean + 3SD= 98.20 F + 3(0.62)= 98.20 F+ 1.86= 100.06 F
A sample of 4 different calculators is randomy selected from a group containing 12 that are defective and 36 that have no defects. What is the probability that a least one of the calculators is defective?
Answers
Answer: 0.69727
Step-by-step explanation:
Given: Sample size : n= 4
Number of defective calculators = 12
Number of non-defective calculators = 36
Total calculators = 12+36=48
Let X = Number of defective calculators.
The probability that a least one of the calculators is defective will be :
[tex]P(X\geq1)=P(X=1)+P(X=2)+P(X=3)+P(X=4)\\\\=\dfrac{^{12}C_1\times\ ^{36}C_{3}}{^{48}C_4}+\dfrac{^{12}C_2\times\ ^{36}C_{2}}{^{48}C_4}+\dfrac{^{12}C_3\times\ ^{36}C_{1}}{^{48}C_4}+\dfrac{^{12}C_4\times\ ^{36}C_{0}}{^{48}C_4}\\\\=\dfrac{12\times7140}{194580}+\dfrac{66\times\ 630}{194580}+\dfrac{220\times\ 36}{194580}+\dfrac{495\times\ 1}{194580}\approx0.69727[/tex]
Hence, the required probability = 0.69727
Una sirena y una persona se acercan entre sí con velocidades de 20 m/s cada una. La sirena emite un sonido de 300 Hz de frecuencia. Halle la frecuencia percibida. (Recuerde que la velocidad del sonido es 343 m/s).
Answers
Answer:
La frecuencia percibida es 337,2 Hz.
Step-by-step explanation:
Dado que tanto el emisor del sonido como el receptor se están acercando, la frecuencia percibida es:
[tex] f' = f*\frac{v + v_{r}}{v - v_{e}} [/tex] (1)
En donde:
f': es la frecuencia recibida
f: es la frecuencia emitida = 300 Hz
v: es la velocidad del sonido = 343 m/s
[tex]v_{e}[/tex] es la velocidad del emisor = 20 m/s
[tex]v_{r}[/tex] es la velocidad del receptor = 20 m/s
Sustituyendo los valores en la ecuación (1) tenemos:
[tex]f' = f*\frac{v + v_{r}}{v - v_{e}} = 300 Hz*\frac{343 + 20}{343 - 20} = 337,2 Hz[/tex]
Por lo tanto, la frecuencia percibida es 337,2 Hz.
Espero que te sea de utilidad!
Will give BRAINLIEST
Answers
Answer:
b
Step-by-step explanation:
Answer:
(0, 4)
Step-by-step explanation:
g(x)=-3x+4
y intercept is (0, 4)
Please help. (look at image)
Answers
2-> write the products of power
4-> add
5-> subtract
Mark brainliest plzz also may be rusty I haven’t done this in like 3 years
What is an equation of the line that passes through the points (2, -6) and (-1, 6)?
Answers
Answer: (Point-Slope) y+6=-1/4(x-2)
Step-by-step explanation:
1. Find slope (y2-y1)/(x2-x1) = -3/12 simplifies to -1/4
2. Point slope form: y-y1=m(x-x1)
Answer:
The equation is y= - 4x+2 .
what is the base of the expression 11 12
Answers
Answer:
B. 11
Step-by-step explanation:
Edge 2021 :)
which expression is equalivent 7 - 4(2x - 3)
Answers
5.3 pounds of almonds cost $20.67. 1.4 pounds of pecans cost $9.45. How much more does pecans cost per pound?
Answers
Answer:
2.85 dollas
Step-by-step explanation:
Answer:
$2.85 more
Step-by-step explanation:
divide 20.67 by 5.3 and get 3.90
divide 9.45 by 1.4 and get 6.75
then you do 6.75-3.90 and get 2.85 as you answer
so the cost of almonds per pound is $3.90, and pecans cost $2.85 more per pound
Hope this Helps!!
:)
What are the points?
Answers
(0,4)
(3,0)
(6,-4)
if this helped pls mark me brainliest <3
n= 9c-80 solve for c
Answers
Answer:
[tex] c = \frac{n + 80}{9}[/tex]
Step-by-step explanation:
[tex]n = 9c - 80 \\ \\ n + 80 = 9c \\ \\ \frac{n + 80}{9} = c \\ \\ \huge \red {c = \frac{n + 80}{9}}[/tex]
someone know the answer ? please
Answers
Answer:
B
Step-by-step explanation:
-9x + 10x = 1
-y + y = 0
10 - 9 = 1
Candice spent 3 ⅘ hours, and Shane spend 2 ⅒ hours at track practice over the weekend. How many more hours did Candice spend than Shane at track practice?
Answers
Answer:
1 7/10
Step-by-step explanation:
2 1/10 - 3 4/5= 1 7/10 but if you don't understand this then...
Take the wholes and minus both of them which makes 1 (BTW this will be your whole number) Then convert 4/5 into tenths (easier way: draw 4 circles and cut them in half, then count all the halves. That will be your answer, in this case my answer would be 8/10) Now since Shane spent 2 1/10 hours on track we are going to take the fraction beside the whole number (AKA 1/10) and minus it by our 4/5 (AKA 8/10) Now we have 7/10. Our answer would be 1 7/10.
What is the slope of the function?
Answers
Answer: Your answer should be, (4)
Determine if the ordered pair (1,4) is a solution of 5y - 2x = 16
Show work
Answers
Answer:
No, it is not
Step-by-step explanation:
5(4) - 2(1) = 16
20 - 2 = 16
18≠16
Willie left the mall and traveled toward the town hall at an average speed of 40 km/h. Gabriella left two hours later and traveled in the opposite direction with an average speed of 70 km/h. Find the number of hours Gabriella needs to travel before they are 410 km apart.
a) 1 hour
b) 3 hours
c) 4 hours
d) 2 hours
Answers
Answer:
b) 3 hours
Step-by-step explanation:
Given;
speed of Willie , s = 40 km/h
speed of Gabriella, s = 70 km/h
when they are 410 km apart:
Willie's time = t
Gabriella's time = t- 2
2 hours later, the position of Willie = 40t
2 hours later, the position of Gabriella = -70 (t-2) (since he is traveling in opposite direction)
the difference in their positions = 410 km
40t - {-70 (t-2)} = 410
40t -{-70t + 140} = 410
40t + 70t - 140 = 410
110t = 410 + 140
110t = 550
t = 550 / 110
t = 5 hours
Gabriella's time = t- 2
Gabriella's time = 5 - 2 = 3 hours
Thus, Gabriella needs to travel 3 hours before they are 410 km apart.
A PAIR OF SHOES IS DISCOUNTED BY 25%. THE DISCOUNTED PRICE WAS $93.75. WHAT WAS THE ORIGINAL PRICE AHHH SOMEONE ANSWER
Answers
Answer:
$70.31
Step-by-step explanation:
Hope this helps
Answer:
$117.19
Step-by-step explanation:
93.75 * .25 =23.4375
23.4375+93.75 = $117.1875
(rounded:$117.19)