Answer:
see the explanation
Step-by-step explanation:
Let
x ----> number of tennis balls
y ----> number of tennis rackets
we know that
To find out the ratio of tennis balls to tennis rackets, divide the number of tennis ball by the number of tennis rackets
In this problem we have
so
That means
The number of tennis balls is three-fifths times the number of tennis rackets
see the attached figure to better understand the problem
It’s 52 because there are two sides with 64 degrees (the bottom two sides) and you add those to sides together and subtract your combine angle of the bottom 2 sides by 180 degrees which is the degree of all triangles combine and get 52
Answer:
Step-by-step explanation:
This is about sums.
Use the numbers in the table to find respective sums.
1. Sum of all fi
- ∑fi = 3 + 5 + 7 + 8 + 12 + 10 = 45
2. Sum of all xi
- ∑xi = -2 + 5 + 4 - 3 + 7 + 6 = 17
3. Sum of all yi
- ∑yi = 3 + 3 - 7 + 2 - 5 - 1 = - 5
4. Sum of fi*xi
- ∑(2 to 4)fi*xi = 5*5 + 7*4 + 8*(-3) = 29
5. Sum of (xi + yi)
- ∑(1 to 3)(xi + yi) = (-2 + 3) + (5 + 3) + (4 - 7) = 6
Answer:
4⅝
Step-by-step explanation:
7¾ − 3⅛
Write as improper fractions.
7¾ = (7×4+3)/4 = 31/4
3⅛ = (3×8+1)/8 = 25/8
31/4 − 25/8
Find the common denominator (in this case, 8).
62/8 − 25/8
Subtract:
37/8
Convert to proper fraction. 8 goes into 37 4 times with a remainder of 5.
37/8 = 4⅝