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
-3.5.-12=42<br> O True<br> O False
Xelga [282]
It’s false because if you take a negative number away from another negative number it would give you another negative number not a positive number!
5 0
3 years ago
Kari estimated the quotient of -12 1/5 divided by 4 2/5 to be -8. Which best describes her error?
liubo4ka [24]

Answer:

She divided wrong

Step-by-step explanation:

8 0
3 years ago
Is X greater than less than or equal to 106 degrees​
frez [133]

Answer:

Less

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Order these decimals
Serjik [45]
Least 8.334
67/8
8.38
Greatest 8 4/9
Give me brainliest please :))
8 0
2 years ago
Read 2 more answers
A cylindrical tank has a diameter of 2.5 feet and a height of 4.8 feet. what is the lateral surface area of the tank to the near
blsea [12.9K]

Answer:

This is approximately 37.7 ft^{2} to the nearest hundredth

Step-by-step explanation:

First of all, we will need to understand that to find the lateral surface area of the cylinder, we simply need to multiply the circumference of the circular base by the height of the cylinder.

In this case, the circumference of the circular base can be obtained by the formula

2 \pi r

Hence we will have the circumference as 2 \times \pi \times \frac{2.5}{2}=7.85 feet

Tp get the Lateral area, we will simply have to multiply this value (7.85 feet )

by the height (4.8 feet)

7.85 X 4.8 =37.68 feet ^{2}

This is approximately 37.7 ft^{2} to the nearest hundredth

8 0
3 years ago
Other questions:
  • The rectangle below has an area of x^2−4x−12, squared, minus, 4, x, minus, 12 square meters and a length of x+2x+2 x+2 x, plus,
    13·1 answer
  • What is the slope of the line that passes through the points (-2,-5) and
    12·1 answer
  • Sydelle can wax her SUV in 2 hours. Marques can wax the same SUV in 3 hours. If they work together how long will it take them to
    14·1 answer
  • According to the Rational Root Theorem, Negative two-fifths is a potential rational root of which function?
    6·2 answers
  • what is the surface area of a pyramid if the length and width is 10 inches and the height is 9 inches?
    11·1 answer
  • What is the distance between points v (3,3) and w (-2,-3) round to the nearest tenth if necessary
    11·1 answer
  • Sandra buys stamps that cost $0.65 each. She spends a total of $158.60 on the stamps. To determine how many stamps she buys, she
    12·1 answer
  • What is the equation for the line?
    6·1 answer
  • Determine all possibilities for the solution set of a system of 2 equations in 2 unknowns. I. No solutions whatsoever. II. One a
    5·1 answer
  • Solve the system by substitution.<br> 4x + 2y = 10<br> x − y = 13
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!