Answer:
multiply 3 by 2 and add 1 to get 7
Step-by-step explanation:
3x2+1=7
Divide it into chunks of area you can find. One way to divide it is
.. a rectangle 2 mi x 5 mi at upper left.
.. a rectangle 8 mi x 6 mi down the middle
.. a rectangle 3 mi x 4 mi at lower right
.. a triangle 5 mi x 6 mi at lower left
Then the sum of areas is
.. (2 mi)*(5 mi) +(8 mi)*(6 mi) +(3 mi)*(4 mi) + (1/2)*(5 mi)*(6 mi)
.. = 10 mi^2 +48 mi^2 +12 mi^2 +15 mi^2
.. = 85 mi^2
Answer:
x = 25
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse x is equal to the sum of the squares on the other two sides, that is
x² = 20² + 15² = 400 + 225 = 625 ( take the square root of both sides )
x = 
= 25
Answer:
1. 4(a-44) = 64
2. Sarah is 60 years old
Step-by-step explanation:
Given that 64 is 4times the difference between a and 44 and she is older than 44:
1.
4(a-44) = 64
Next is solve,
2.
4(a-44) = 64
a - 44 = 16
a = 60
Answer:
480 because 50% is just haf and half has to be equal to the 240 so you just add 240 to 240
Step-by-step explanation:
