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
iVinArrow [24]
3 years ago
15

One month, Ruby worked 8 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 112 hour

s. Find the number of hours each person worked.  
Mathematics
1 answer:
melamori03 [73]3 years ago
3 0
R=8+I
S=4R

R+I+S=112
R+R-8+4R=112
6R=120
R=20

So therefore, Ruby worked 20 hours, Svetlana worked 80 hours, and Isaac worked 12 hours.

<span />
You might be interested in
Larry wants to buy some carpeting for his living room the length of the room is 2 times width and the total area of the room is
cluponka [151]
Draw a diagram!  Lets say the width is x, then the length must be 2x.
   
                       Area = length x width
                          2x x  x    = 8sq meters
                         2x^2       = 8
                          x^2        =4
                           x      =  √4
                            x    = 2

we found the width the length is two times the width, making it 4 meters.



7 0
3 years ago
Find the product (8/6n-4)(9n^2-4)
Leokris [45]

Answer:

4(3n+2) or 12n+8

Step-by-step explanation:

Given expression is:

(\frac{8}{6n-4})(9n^{2}-4)

The numerator of the fraction will be multiplied with 9n^2- 4

So, Multiplication will give us:

=\frac{8(9n^2-4)}{6n-4}

We can simplify the expression before multiplication.

The numerator will be broken down using the formula:

a^2 - b^2 = (a+b)(a-b)\\So,\\= \frac{8[(3n)^2 - (2)^2]}{6n-4}\\ = \frac{8(3n-2)(3n+2)}{6n-4}

We can take 2 as common factor from denominator

=\frac{8(3n-2)(3n+2)}{2(3n-2)}\\After\ cutting\\= 4(3n+2)

Hence the product is 4(3n+2) or 12n+8 ..

6 0
3 years ago
Can someone explain this, please?
Lostsunrise [7]
If you notice the terms, they're

7, -21, 63, -189 and so forth.

7*-3 = -21  and -21 * -3 is 63 and so forth, meaning the "common ratio" is -3.

now, for a common ratio say "r", which is a fraction, namely less than ±1 and more than 0, or |r| < 1 ,  you do have a convergent sequence.

however this one notice, |-3| is 3, and that's greater than 1 clearly, therefore is divergent, meaning the summation has no finite value.
6 0
3 years ago
I need help with this asap please
Lorico [155]

Answer:

The perimeter is 100 feet. This means that all the sides of the shape must add up to equal 100.

x + x + 5 + x - 3 + x + 4 = 100

4x + 5 - 3 + 4 = 100

4x + 6 = 100

4x = 94

x = 94/4

x = 23.5 feet

3 0
3 years ago
What is the measure of angle x?<br>Enter your answer in the box.<br>X =<br>9​
Svet_ta [14]

Answer:

X=9?

90°

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?
    8·2 answers
  • Write two 5-digit addends whose sum would give an estimate of 60,000
    7·1 answer
  • Carlos says there are a total of 6,000 hundreds in the number 6,000,000 is carlos correct? a. yes, carlos is correct. b. no, car
    9·1 answer
  • To decrease an amount by 70%, what single multiplier would you use? How do i work this out?
    10·1 answer
  • What set of values could be the side lengths of 30-60-90 triangles
    5·1 answer
  • Find surface area asap pls
    14·1 answer
  • Leis car averages 14.5 miles per gallon while romans car averages 28.5 miles per gsllon.Use estimation to find how many times as
    9·1 answer
  • Can someone please help me with these two
    5·1 answer
  • Solving systems of 3 equations <br> 2x-y-3z=4<br> 4x+2y+z=10<br> 4x-y+4z=-8
    7·1 answer
  • Segment AB is tangent to T at B. What is the radius of T?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!