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
monitta
3 years ago
11

Three siblings- Kate, Sarah, and Dave comitted themselves to volunteer 160 hours for a homeless charity to build new housing. Da

ve worked 15 hours more than Kate. Sarah worked 20 hours fewer than Kate. How many hours did each of these siblings volunteer?
Mathematics
1 answer:
MAXImum [283]3 years ago
4 0

Answer:

Kate 55 hours

Dave 70 hours

Sarah 35 hours

Step-by-step explanation:

Let k be Kate's hours

Dave = 15 + k

Sarah = k- 20

Dave + Kate + Sarah = 160

15 + k + k + k - 20 = 160

3k - 5 = 160

3k = 165

k = 55

Kate worked 55 hours

Dave worked 70 hours

Sarah worked 35 hours

You might be interested in
Please can someone explain how to work out this
wariber [46]

Answer:

T = 4B + 10C

Step-by-step explanation:

Since there are 4 doughnuts in a bag then there are 4B doughnuts in B bags

Since there are 10 doughnuts in a carton then there are 10C doughnuts in C cartons, thus summing the two quantities gives

T = 4B + 10C

6 0
3 years ago
What is the factorization of 84
Vladimir79 [104]

Answer:

2×2×3×7

Step-by-step explanation:

84 is even, so divisible by 2. 84 = 2×42

42 is even, so divisible by 2. 82 = 2×2×21

21 has a sum of digits of 3, so is divisible by 3. 84 = 2×2×3×7

4 0
3 years ago
If a triangle has a height of 12 inches and a base of 5 inches, what is its area
Alina [70]
Area of a Triangle = base * height

Area = 12 inches * 5 inches

Area = 60 inches²
4 0
3 years ago
Read 2 more answers
7(3r - 1) - (r + 5) = -52<br><br> Please step by step help
MrMuchimi
7(3r-1)-(r+5)=-52

21r-7-r-5=-52

21r-r-5-7=-52

20r-12=-52

Add 12 to both sides

20r=-40

Divide by 20

r=-2
4 0
3 years ago
Read 2 more answers
If function g(x) = x2 + 2 is a transformation of the quadratic parent function, f(x) = x2, where is the y-intercept of function
Sonbull [250]

Answer:

The y-intercept of function g located at (0,2)

Step-by-step explanation:

Function :g(x)=x^2+2

g(x) is a transformation of the quadratic parent function

We are supposed to find the where is the y-intercept of function g located

y intercept = the y-coordinate of a point where a line, curve, or surface intersects the y-axis i.e. x =0

So, substitute x = 0 in function

g(x)=x^2+2

g(0)=0^2+2

g(0)=2

So,(x,y)=(0,2)

So, The y-intercept of function g located at (0,2)

6 0
3 years ago
Read 2 more answers
Other questions:
  • In a certain game, each player scores either 2 points or 5 points. if n players score 2 points and m players score 5 points, and
    12·1 answer
  • To convert degrees Fahrenheit (F) into degrees Celsius (C) use the formula 2003-05-04-00-00_files/i0150000.jpg. Rewrite the equa
    15·1 answer
  • What is the length of the altitude drawn to the hypotenuse using 7 15
    13·1 answer
  • A paper company needs to ship paper to a large printing business. The volume of each small box is 7 cubic feet and the volume of
    11·1 answer
  • Which could be the function?
    8·2 answers
  • What is the 1st step of finding 35% of 125 miles? I forgot &amp; i don't have my notes
    11·2 answers
  • Please help me guys!
    13·1 answer
  • Two step equations
    15·1 answer
  • On a number line, there are two numbers, 535 and -8, how far are these two from each other? plz, answer ILL GIVE BRAINLIEST!!!!!
    12·1 answer
  • What is the inequality 4x-7&lt;5
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!