The three scores are 86, 74, and an unknown score x. The average (i.e. the sum divided by how many there are) is 80, so we have
Multiply both sides by 3 and you get
Subtract 160 from both sides to get
Note: you could solve this exercise very quickly if you notice that the two numbers, 86 and 74, are symmetrical with respect to 80, which is the average. So, the third number must be the average.
Answer:
1/9 pint
or 2/9 cup
Step-by-step explanation:
This question is asking us to <em>divide </em>2/3 pint among 6 cans.
2/3 ÷ 6
2/3 × 1/6
= 2/18
= 1/9 pint or 2/9 cup additive
1 year have <span>8760 hours。
So, 34.5 years have 8760x34.5=</span>302220 hours.
That's your answer.
Answer:
14 in
Step-by-step explanation:
4+12+4+4+4=28/2= 14
Answer:
Step-by-step explanation:
Solving (47):
To solve for B, we have:
--- sum of angles in a triangle
This gives
Collect like terms
Solving (48):
To solve for Y, we have:
--- sum of angles in a triangle
This gives
Where
-- angle on a straight line
Solve for X
So, we have:
