Answer:
A can paint in 3days and B in 6 days
Step-by-step explanation:
From the question we were told
Person A can paint the neighbors house 2 times as fast as Person B
Let A only paint the neighbors house in X days
Let B only paint the neighbors house in 2X days
If we express the given information from the question in terms of fraction we have,
1/X + 1/2X = 1/2
3/2X = 1/2
if we cross multiply we have
6= 2X
X= 6/2
X= 3
Then A can paint the house in 3 days and B in 2(3)= 6days.
Franks plan is proportional because it goes through the orgin and Allie's plan doens't
(2x - 8) - (4x + 8)
first look at the x
2x - 4x = -2x
-2x is left over
then look at the numbers
8 - (-8)
in the case of having two negatives, it becomes positive, and so it is really 8 + 8
8 + 8 = 16
-2x - 16 is your answer
hope this helps
Answer:
a. 100.48
b. 1,004.8
c. 1,105.28
Step-by-step explanation:
a. a cone with volume = ⅓×3.14×4²×6=
100.48
b. a cylinder with volume = 3.14×4²×20=
1,004.8
c. total volume = 100.48+1,004.8
= 1,105.28
Answer:
f(x) = -5/3x + 5/3
Step-by-step explanation:
if x = 4 ; f(x) = -5
if x = -2 ; f(x) = 5
f(x) = ax + b
-5 = 4a + b <em>(</em><em>1</em><em>)</em><em> </em>
and
5 = -2a + b <em>(</em><em>2</em><em>)</em>
<em>(</em><em>1</em><em>)</em><em> </em><em>+</em><em> </em><em>(</em><em>2</em><em>)</em><em> </em>
2a + 2b = 0
a = -b
<em>(</em><em>1</em><em>)</em><em> </em>-5 = 4a - a
-5 = 3a
a = -5/3
<u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u> </u><u>:</u>
f(x) = -5/3x + 5/3
