Answer:
Step-by-step explanation:
Estimating a sum by rounding to get the best estimate is the goal of this lesson. Notice that we try to estimate. We don't need to have an exact answer!
Notice that for numbers with two digits, there can only be one estimate because you can only round to the tens place.
Estimate the following sums: 36 + 21, 74 + 15, and 85 + 24
36 + 21 = 40 + 20 = 60
74 + 15 = 70 + 20 = 90
For one since since the angles should add up to 180 degrees we must start by adding 55 and 25 which is 80 so 180-80=100 which means c is 100 degrees and for the other I'm going with C
OQ is equal to QP so the first option is correct
Answer:
x=10
Step-by-step explanation:
Use pythagorean theorem, a^2+b^2=c^2
24^2 + b^2 = 26^2
576 + b = 676
676-576=100
=10
Answer:
3x
Step-by-step explanation:
If we let "a number" be x , then the algebraic expression would be 3x