paul paints a room in 6 hours. joel paints the room in 3 hours. how long will it take them to paint togather?
Answers
Joel paints 1/3 of the room each hour.
Working together, they paint (1/6 + 1/3) of the room each hour.
In order to add the fractions, you need a common denominator.
6 will work:
(1/6 + 1/3) = (1/6 + 2/6) = 3/6 = 1/2
Together, they can paint at the rate of 1/2 room/hour .
This rate of work produces 2 hour/room.
2 hours
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1. Which of the following represents a function? x -2 -1 0 -1 -2y 2 3 4 5 6 x 1 1 0 2 2y 1 2 3 4 5x 1 2 3 4 5 y 2 2 3 3 4x 1 1 1 1 1y 2 3 4 5 62. What is the domain of the function: {(2, 1); (4, 2); (6, 3); (8, 4)}? {1, 2, 3, 4}{1, 2, 3, 4, 6, 8}{2, 4, 6, 8}{6, 8} 3. What is the range of the function: {(2, 1); (4, 2); (6, 3); (8, 4)}?{1, 2, 3, 4}{1, 2, 3, 4, 6, 8}{2, 4, 6, 8}{6, 8}4. Suppose p varies directly with d, and p = 7 when d = 3. What is the value of d when p = 28?4/31216140/35. Given the function T(z) = 7 − z, find T(−4).−1111−336. What is the equation of the graph?f(x) = − |x| + 2f(x) = − |x| − 2f(x) = − |x + 2|f(x) = − |x − 2|7. The number of calories burned, C, varies directly with the time spent exercising, t. When Dennis walks for 4 hours, he burns 800 calories. Which of the following equations shows this direct linear variation?C = tC = 800tC = 4tC = 200t
What is 3 1/4 minus 2 1/2?
Given the function y = 5x – 7, how does the y-value change as x increases by 1 A. The y-value decreases by 7. B. The y-value decreases by 2. C. The y-value increases by 12. D. The y-value increases by 5.
Answers
Answer:
7/3
Step-by-step explanation:
B) x+0.5x=3.15 one solution
C) x+0.05=3.15 one solution
D) 0.05x=3.15 no solution
Answers
Answer:
x+0.05x=3.15
Step-by-step explanation:x= the amount he pays for a pack of pen
x+0.05x=3.15 , which has one solution.
1.05x=3.15
x=3.15/1.05=3
he pays for a pack of pens 3
Answer: x+0.05x=3.15 , which has one solution.
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Answers
Hoped this helped you!
a = b − 2
What is the solution to the set of equations in the form (a, b)?
(−2, −2)
(−3, −1)
(−9, −7)
(−5, −3)
Answers
a − 3b = 4
a = b − 2
_______________
a − 3b = 4
b - 2 - 3b = 4
- 2b = 6
b = - 3
a = b − 2 = - 3 - 2 = - 5
(a, b) = (-5, -3)
The correct result would be (-5, -3).
Answers
c) RUBM is a rhombus Reason: Given
d) Reason: RUBM is identified as a rhombus. Thus, its sides are of equal length.
e) RUMH and RUBM are rhombus which have similar dimensions. Each sides of any rhombus is equal in length and since both are of similar dimensions, then, all of their sides lengths are equal with each other.
f) Rhombus have opposite sides that are parallel and its opposite angles are equal. Rhombus is also called a parallelogram.
Answer:
b) RH = UM = HM = RU Reason: Since they form a rhombus, its sides are of equal length.
c) RUBM is a rhombus Reason: Given
d) Reason: RUBM is identified as a rhombus. Thus, its sides are of equal length.
e) RUMH and RUBM are rhombus which have similar dimensions. Each sides of any rhombus is equal in length and since both are of similar dimensions, then, all of their sides lengths are equal with each other.
f) Rhombus have opposite sides that are parallel and its opposite angles are equal. Rhombus is also called a parallelogram.