1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Illusion [34]
3 years ago
5

Liz polishes rings for a jeweler. She can polish 9 rings per hour. How many rhours will it take her to polish 315 rings?

Mathematics
2 answers:
ycow [4]3 years ago
6 0

its super duper easy divide ok divide 9 ÷ 315 we give you 35.


Annette [7]3 years ago
3 0
315 divided by 9 = 35 hours
You might be interested in
A) how many 15-year old students took part in the survey?
trapecia [35]

Answer: 60 or something near that sorry if wrong

Step-by-step explanation:

8 0
3 years ago
johnathan class has 30 boys of the students in his class 60% are girls how many girls are in johnathans class
Gekata [30.6K]

Answer:

45 girls

Step-by-step explanation:

If 60% of the class is girls then 40% of the class is boys.

30 boys are in the class, meaning that 40% of the class comprises those 30 boys

First, we need the total number of class members: 30/x = 40/100 -> 40x=3000 -> x=3000/40 -> x=75

Now that we know the total class members, at 75, we can calculate the number of girls in the class. You can do this:

0.6*75=45

or

60/100=x/75 and solve for x

5 0
3 years ago
PLEEASSEEEE Answer ASAP. Due in 5 Minutes. 25 points!!!!!!!!!
jonny [76]

Answer:

Here we will use the relationships:

a^n*a^m = a^{n + m}

(a^n)^m = a^{n*m}

\frac{a^n}{a^m} = a^{n - m}

And a number:

a^n

is between 0 and 1 if a is positive and larger than 1, and n is negative.

if a is positive and 0 < a < 1, then we need to have n positive such that:

0 < a^n < 1

A) 5^3*5^{-4} = 5^{3 + (-4)} = 5^{-1}

This is between zero and 1,

B) \frac{3^5}{3^{-6}} = 3^{5 - (-6)} = 3^{11}

This is greater than 1, because the exponent is positive.

C) (\frac{1}{4})^3*( \frac{1}{4})^2 = (\frac{1}{4})^{2 + 3} = (\frac{1}{4})^5

Because a is smaller than 1, and the exponent is positive, then the expression is between 0 and 1.

D) \frac{(-7)^5}{(-7)^7} = (-7)^{5 - 7} = -7^{-2}

The exponent is negative (and pair) then the expression is between 0 and 1.

Remember that when the exponent is pair, we always have that:

(-N)^m = (N)^m

So (-7)^-2 = 7^-2

4 0
3 years ago
A rectangle has a length that is three times the width . The perimeter of the rectangle is 40 feet.what is the area of the recta
charle [14.2K]

Answer:

The area is 15 feet

Step-by-step explanation:

So you are going to need two different equations-

l = w(3)

2l + 2w = 40

Insert the first equation into the second-

2(3w) + 2w = 40

Simplify this equation-

6w + 2w = 40

8w = 40

Divide both sides by 5

w = 5

Solve first equation

l = 5(3)

l = 15

Then find the area-

5 x 15 = 75

7 0
3 years ago
Estimate the product. Then find the actual product.
Artist 52 [7]

Answer:

it  is in the steps 4443.6 actual product

estimate is 4444

Step-by-step explanation:

483*9.2=4443.6 actual product

6 0
2 years ago
Read 2 more answers
Other questions:
  • Sally works as an estimator for G&amp;J Electric. She has determined that 550 feet of electrical cable will be needed to wire a
    5·2 answers
  • A person has two times as many nickels as quarters. if the total face value of these coins is $4.55, how many of each type of co
    5·1 answer
  • an 8th grade slacker only has $51.26. he never dies his homework either and has to pay a 7th grader $5 for each math assignment
    13·2 answers
  • 6+0=6 is what properties
    14·2 answers
  • pls help me with A and B. my calculator isn't working. if you could put a picture of the graph that would be great too ;)
    7·1 answer
  • Write an expression for each
    10·2 answers
  • Please help this is due soon
    12·2 answers
  • The square of the product of 4 and a number.
    15·2 answers
  • Lines 1 || m, then Zz= <br>a. 120 b. 60 c. 180 d. 90​
    5·1 answer
  • On Tuesday, the baker makes 60 total cupcakes. How many chocolate cupcakes does the baker make on Tuesday?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!