Answer:
Step-by-step explanation:
Letters are variables and those variable can store a number
Ex: x=5 y=2
evaluate : 3x+2y
we know that x is 5, so we know that 3x would be 15
we know that y is 2, so we know that 2x would be 4
then it says to add 3x and 2y, we would add 15 and 4 to get 19
(This is a very simple example, when you get older, the expression would be much more confusing.
Answer:
13 pounds of grass.
Step-by-step explanation:
You need 20 pounds of grass seed to plant inside the baseball diamond.
The Baseball Diamond is a square of side = 90 ft
The Softball Diamond is a square of side = 60 ft
The ratio of the size of the Baseball Diamond to that of Softball Diamond is:
90: 60 = 3:2
If 3 represents 20 pounds, then 2 represents;
× 20 = 13.33333333 pounds = 13 pounds (rounded to nearest pound)
Answer:
x = 80
Step-by-step explanation:
x + 30 = 110 (Opposite angles are equal)
x = 110 - 30
x = 80
Answer: 32.23°
Suppose the setpoint of a helicopter is A and that of a car is C and that of the road is B
The distance from the helicopter to the car and the road forms a right triangle
=> ΔABC is a right triangle at B
=> the angle of depression from the helicopter from the car is ∠ACB
we have: ΔABC is a right triangle => sin ∠ACB = 24/45
=> m∠ACB = 32.23°
Step-by-step explanation:
This is a relatively easy question to solve. You want to find 19.3% OF 126, meaning that you have to use multiplication. So you would do 126*0.193 which would equal 24.318 which can be rounded to 24.3
