Answer:
9.6p + 0.4q + 2.2r meters (answer A)
Step-by-step explanation:
We sum up the three side lengths to obtain the perimeter of the triangle:
(6.2p + 4.5q) meters, , and (2.9r – 4.1q) meters
+ (3.4p – 0.7r) meters
+ (2.9r – 4.1q) meters
---------------------------------
9.6p + 0.4q + 2.2r meters (answer A)
If Nate paints the wall in 4 hours, it means that he can paint 1/4 of the wall every hour.
Similarly, if Jill paints the wall in 7 hours, it means that he can paint 1/7 of the wall in one hour.
So, together, they paint the following fraction of the wall in one hour:
.
At this rate, they need 28/11 hours to paint the whole wall, in fact, after that amount of time they paint
i.e. the whole wall
Less because half of 46 is 23
Answer:
<u>A = 2 , B = 10 and C = 18</u>
Step-by-step explanation:
Let the the missing numbers in the boxes are: A , B and C.
Given:
Time : Distance
A : 3
6 : 9
B : 15
12 : C
From the second raw, we can deduce that:
When the time = 6, the distance = 9
We will use the ratio and proportional to find A , B and C
So,
A/6 = 3/9 ⇒ A = 6 * 3/9 = 2
6/B = 9/15 ⇒ B = 6*15/9 = 10
6/12 = 9/C ⇒ C = 9*12/6 = 18
<u>So, A = 2 , B = 10 and C = 18</u>
Answer:
Graph B
Step-by-step explanation:
Given
Graphs A, B and C
Required
The graph with no solution
Each of the graphs have two parallel lines.
<u>For Graph A</u>
There is a point of intersection between both lines
<u>For Graph B</u>
No visible point of intersection between both lines
<u>For Graph C</u>
Both lines are the same
<em>Since graph B has no point of intersection between the two lines, it has no solution</em>
