Mathematics Middle School

PLEASE HELP!

an electrician charges $80 an hour. his apprentice earns $42 an hour. the apprentice works on a job 3 hours less than the plumber. together they earn $850. how many hours did they each work?

Answers

Answer 1
The electrician works for 8 hours, while his apprentice works for 5 hours. 8(80) = 640. 5(42) = 210. 640 + 210 = 850. This took a bit of trial and error, hope it helps! :)

Related Questions

A dealer sells a carpet that measures 6 by 5 feet. A buyer requests that a similar carpet be sold to him that is related by a scale factor of 2. what is the perimeter of the carpet that the buyer wants?

Answers

The perimeter is 44 feet

Find the surface area of the figure. A) 280 cm2 B) 288 cm2 C) 296 cm2 D) 320 cm2

file:///storage/emulated/0/Download/12564.jpg

Answers

Answer:

320

Step-by-step explanation:

To find the surface area of the figure, add up all of the areas of the faces. The surface area of the rectangular prism on the left is 3(10 x 4) + 2(4 x 4) + (6 x 4) and the one on the right is 4(8 x 4) + (4 x 4). The surface area of the entire figure is 320 cm2.

Order -3.25, -3 1/8, -3 1/4 , and -3.1 from least to greatest . Explain

Answers

Make all of them either a decimal or all as fractions. the least is the furthest from 0 if it on the left side of 0 on a number line. Negatives are to the left.
-3 and 1/8 = -3.125
-3 and 1/4 = -3.25
so your numbers are now
-3.25, -3.125, -3.25, -3.1
Least to greatest
-3.25, -3 1/4, -3 1/8, -3.1

The ascending order of the numbers will be;

⇒ - 3.25, - 3 1/4, - 3 1/8, - 3.1

What is Ascending order?

The numbers arrange in order to least to greatest number is called Ascending order.

Given that;

The numbers are,

⇒  -3.25, -3 1/8, -3 1/4 , and -3.1

Now,

Since, The numbers are,

⇒ -3.25, -3 1/8, -3 1/4 , and -3.1

Hence, We get;

⇒ - 3 1/8 = - 25/8

             = - 3.125

⇒ - 3 1/4 = - 13/4

             = - 3.25

Thus, The ascending order will be;

⇒ - 3.25, - 3 1/4, - 3 1/8, - 3.1

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Select the appropriate tool for each type of measurement. Cecilia needs to determine the mass of a coin. Dmitry needs to determine the temperature of salt water. Gustav needs to measure out 12.5 mL of distilled water. Julianne wants to measure the height of her laboratory table

Answers

Answer:

Hope this helps!:)

Step-by-step explanation:

Charlottle brought packages of hot dogs for $4 each each package contains $8 hotdogs if she spends $16 on hotdogs how many hotdogs did she buy

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Divide total amount paid by price per package to find number of packages purchased.

$16 ÷ $4= 4 packages purchased

Then multiply number of purchased packages by number of hotdogs per pack.

4 * 8= 32 hotdogs

ANSWER:
32 hotdogs were purchased

Hope this helps! :)

If LM=41-2x and NP=7x+5, find LM

Answers

Answer:
LM = 33 units

Explanation:
From the drawing:
LM = NP
41 - 2x = 7x + 5
41 - 5 = 7x + 2x
36 = 9x
x = 9

This means that:
LM = 41 - 2x 
LM = 41 - 2(4) 
LM = 33 units

Hope this helps :)

Write and solve an equation to answer the question. 83% of 20 is what number a

Answers

Of means multiply
(83/100) * 20
166 / 100
16.6 <<<<answer.

Final answer:

83% of 20 is 16.6.

Explanation:

To find 83% of 20, we need to understand that percent means per hundred.

So, to calculate 83% of a number, we can convert the percentage to a decimal by dividing by 100 and then multiply by the number.

In this case, the equation to find 83% of 20 is:

(83 ÷ 100) × 20 = x

Which simplifies to:

0.83 × 20 = x

Now, we do the multiplication:

0.83 × 20 = 16.6

Therefore, 83% of 20 is 16.6.

Scott bought three bags of candy with 75 pieces each one. He plans to divide all the candy evenly among seven friends. How many pieces of candy will Scott have left for himself

Answers

STEP 1
Find total number of pieces
75 per bag * 3 bags= 225

STEP 2
Divide total number of pieces by 7 friends
225 ÷ 7= 32.14

STEP 3
32 * 7 friends= 224 pieces divided among friends

STEP 4
225 total pieces - 224 pieces divided among friends= 1 pieces left for him

ANSWER: Each friend gets 32 pieces and he has 1 piece left for himself.

Hope this helps! :)

Find the quotient. Do not round. 55.328 ÷ 3.8

Answers

hello

the answer is 14.56

Have a nice day



Your answer will turn out to be 14.56. Hope this helps!

Find the slope of an line with the endpoints of (3,7) and (9,4)

Answers

Y2 -y1
X2-x1


4-7 = -3
9-3 = 6


Slope = -3/6 which mean -1/2


Y= -1/2x+b
Find b

4= -1/2(4) + b

4= = -2+b
Add 2 from both sides

6= b


Y= -1/2+6

This would help

Which one is the closest length of PQ

Answers

Final answer:

The question is about finding the charge on different points using Coulomb's law. The charges at R and T are approximately the same, whereas S has about twice the charge based on the distances provided.

Explanation:

The student's question pertains to the concept of electric fields and forces in physics, specifically in the context of the Coulomb's law which defines the relationship between two charged objects. The equation used is derived from Coulomb's law, which is q1q2/r², where q represents the charges and r is the distance between them. Since qr/d² = qs/D², and taking into account the given distances (D as 6 units and d as 4 units), we conclude that the charge on S is about twice as much as that on R and T given that D²/d² equals 2.25.

Can somebody tell me the answer and how to get answers

Answers

since AB and QR are parallel, than angle 2 is the same as the given angle 70 degrees

than angle 1 would be 180 - 70 = 110 degrees

answer: 1 = 110
              2 = 70

What is the equation of the line that passes through the point (4,7) and has a slope of 0?

Answers

The equation would be, 


y = 0x + 7


or simplified,


y = 7

The equation of the line with a slope of 0 passing through the point (4, 7) is: y = 7.

What is the equation of the line?

To find the equation of a line with a slope of 0 that passes through the point (4, 7), you can use the point-slope form of a line, which is:

y - y1 = m(x - x1)

In this case, the slope (m) is 0, and the point (x1, y1) is (4, 7).

So, the equation becomes:

y - 7 = 0(x - 4)

Since the slope is 0, the equation simplifies to:

y - 7 = 0

Now, add 7 to both sides to isolate "y":

y = 7

So, the equation of the line is simply:

y = 7

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find the measure of the missing side of a right triangle to the nearest tenth if one leg is 36cm in the hypotenuse is 39 cm

Answers

a^2+36^2=39^2
a^2+1296=1521
a^2=225
a=15

your dog's water bowl is 3/4 full after taking a drink the water bowl is 1/3 foot what fraction of the ball did your dog drink

Answers

5/12 this is easy plz hit the thanks button

write two division equations for 15 times 2/5= 6

Answers

Two division equations:
6 divided by 2/5 = 15.
6 divided by 15 = 2/5.

Just to the opposite of multiplication.

The two division equations for 15 times 2/5 = 6 are 15÷(5/2) = 6 and

15 = (5/2)(6) + 0.

What is a fraction?

A fraction is written in the form of p/q, where q ≠ 0.

Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.

We know, N = DQ + R.

First type,

15×(2/5) = 6.

15÷(5/2) = 6.

Second type,

N = DQ + R.

15÷(5/2) = 6.

15 = (5/2)(6) + 0.

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What’s the measure of angle x

Answers

so a circle is divided into 360 equal degree,so that a right angle ie 90 degree

How many inches are in 8 feet

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There are 96 inches in 8 feet.

Hope this helped!
There are 96 inches in 8 feet. 12(8)=96

a car weighs more than 2000 pounds (write an inequality)

Answers

The answer

X > 2000

Hope this helps.

The answer is x>2000.

Hope this helps!! ;))
Have a grat day!! <3

each day Marvin exercises for 48 minutes how many days will it take him to exercise for 576 minutes?

Answers

The answer is 12 because 576 divided 48 is 12 .
576 / 48 = 12

It would take Marvin 12 days to exercise for 576 minutes.

What is the mean for the data set?
{79, 42, 86, 103, 79, 111}
Drag and drop the correct answer into the box.

mean


7982.583.386

Answers

83.3
Just add up all the numbers and divide by 6, as there are six numbers in this set of numbers
Hello there!

When calculating the mean in this time of math problem, we would first do.

(Add everything together).

79+42+86+103+79+111= 500.

Then, we divide it by how many numbers are shown, there are 6 numbers above.

We do 500÷6=83.3333.

I hope this helps you!

Frank averages 3 strikes for every 10 frames that he bowls. If he bowled 42 strikes in a season, how many frames did frank bowl?

A. 126 frames
B. 140 frames
C. 156 frames
D. 164 frames

Answers

For this case we can make the following rule of three:
 3 strikes ---------> 10 frames
 42 strikes -------> x
 From here, we clear the value of x.
 We have then:
 [tex]x = (42/3) * (10) x = 140 frames[/tex]
 Answer:
 frank did bowl about:
 B. 140 frames

Which is NOT a way to state the meaning of the expression h + 7?

A) 7 more than a number
B) A number added 7 times
C) A number increased by 7
D) 7 is added to a number

Answers

B. A number added seven times

Answer:

B) A number added 7 times

∠1 and ​ ∠2 ​ are vertical angles. ∠2 ​ has a measure of 93°. What is the measure of ​ ∠1 ​?
Enter your answer in the box. |___| °

Answers

93 if they really are vertical angles. Vertical angles are equal.

93 it tells you vertical are the same so if <2 is 93 <1 is 93 to :P

Tyler buys 2 pairs of shoes every year. Which of the following expressions shows the total number of shoes he buys in z years?

Answers

2z i guess so and if not then 2+z 
Let me know what is the answer
It's 2z. If there is a number and a variable right next to eachother that means they are being multiplied, and in this problem, he is buying two pairs of shoes each year, which implies that you are multiplying.

Mrs.Hilt read 21 books.Each book had exactly 2,010 words in it. She sold five of her books for $4.95 each.How many words did Mrs.Hilt read?

Answers

Find the words Mrs.hilt read
2010 x 21 = 42210 words
Find the money of 21 books

21 x 4.95 = $103.95

how do you find a complementary and supplementary angles

Answers

Complementary angles add up to 90
Supplementary angles add up to 180

12 - Complement - 78
12 - Supplement - 168

45 - Complement - 45
45 - Supplement - 135

83 - Complement - 7
83 - Supplement - 97

63 - Complement - 27
63 - Supplement - 117

4 - Complement - 86
4 - Supplement - 176

Christopher’s back yard is in the shape of a trapezoid.The bases of his back yard are 30 and 40 feet long.The area of his back yard is 525 square feet.Write and solve an equation to find the height of Christopher’s back yard.

Answers

The height is 15 sqr. ft. the equation to solve this is:

2*525/30+40

Help asap pleasee will give brainliest

Answers

x and 71 are complementary angles

Witch is greater? 8,456 mL or 9 L

Answers

If im not mistaken 9 L
9l if I’m not even mistaken
Other Questions
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