Frequency describes the number of waves that pass a fixed place in a given amount of time.
Answer:
y=-2/5x+1
y=x+1
y=249/10
y=23
y=x+5
Step-by-step explanation:
Let's solve for x.
y=x+5
Step 1: Flip the equation.
x+5=y
Step 2: Add -5 to both sides.
x+5+−5=y+−5
x=y−5
Answer:
x=y−5
Answer:
Brainliest please
Step-by-step explanation:
perimeter is to add all sides
73m= 16+B+C
{ use algebra}
C is a, B is twice C, hence 2a
a+2a(+16)=73
3a=73-16= 57
3a=57, divide
a= 19
B=19×2= 38m
C=19m
C is 19m
9514 1404 393
Answer:
$19.36
Step-by-step explanation:
Any average is the sum of numbers, divided by the number of them.
Here, the numbers are grouped, but the computation of the average works the same way.
The total value of donations received is ...
$100×10 +$50×20 +$20×30 +$10×100 +$5×35
= $1000 +1000 +600 +1000 +175 = $3775
The total number of donations received is ...
10 +20 +30 +100 +35 = 195
Then the average (mean) donation is the total value divided by the total number ...
$3775/195 ≈ $19.35897 ≈ $19.36 . . . mean donation