Answer:
105
Step-by-step explanation:
It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
(91+89+X)/3 =95
91+89+X =95*3
180+X =285
X =285 - 180
=105
Answer:
Not going to lie I can only give you a guess which is -72 sorry if that didn't do much.
Step-by-step explanation:
Answer:
The polygons are similar
Explanation:
They both have the same proportions, just the one on the left is scaled down a bit.
Answer:
3. All you did was switch the numbers, so it will still equal the same :)
4. 8a and the other 8a cancel each other out, so since 8 has no variables, it ends up by itself.
Answer:
Step-by-step explanation:
Hayley: y = 10x + 155
Hank: y = -15x + 230
10x + 155 = -15x + 230
25x + 155 = 230
25x = 75
x = 3 weeks
