Answer: Football = 35 children
<u>Step-by-step explanation:</u>
I created a Venn diagram and labeled it as follows:
Tennis only = x
Both Tennis & Football = y
<u>Football only </u>= <u>x + y </u>
Total children = x + y + x + y
42 = 2x + 2y
We are also given that y = 2x <em>(twice as many play both tennis & football as just play tennis)</em>
Now we have two equations and can use substitution to solve for x & y:
42 = 2x + 2y
y = 2x
42 = (y) + 2y
42 = 3y
14 = y
Now let's find x:
y = 2x
14 = 2x
7 = x
We are asked to find how many children play football.
Football = x + y
<u>Both Tennis & Football</u> =<u> y </u>
Total Football = x + 2y
= 7 + 2(14)
= 7 + 28
= 35
Answer:
91in^2
Step-by-step explanation:
SA of base = 7x7 = 49in^2
SA of each triangle = 1/2 x 7 x 3 = 10.5in^2
SA of all 4 triangles = 10.5 x 4 = 42in^2
SA Total = 49 + 42.= 91inch^2
Answer:
-1.166666667
Step-by-step explanation:
Since there are five lines in between -2 and -1 you need to divide 1 by 6 and when you do that you get .166666667. Since the point is on the first line you add that to one to get 1.166666667 and since it is on the negative side of the number line the number has to be negative.
The answer should be Twenty one