56213 o 75082106
Step-by-step explanation:
espero te sirva
X+y+z=51
y=2z
z=9+x
subsitute those
x+2z+9+x=51
x+2(9+x)+9+x=51
x+18+2x+9+x=51
4x+27=51
minus 27 both sides
4x=24
divide by 4
x=6
sub back
z=9+x
z=9+6
z=15
y=2z
y=2(15)
y=30
the numbers are
6,30,15
Mrs. Smith donated $20
The constant proportionality is $1 because no matter what, Mrs. smith will donate $1 for each mile. So if Sam were to only walk 1 mile, mrs. smith would donate $1. Or seen as a 1:1 proportion.
Answer:
C) 10 inches
Step-by-step explanation:
I think the simplest way to do this is as follows:
divide 75 by 15 to get how many times you need to multiply 2in by
75/15=5
since 15(5)=75 or the actual size of the airplane,
2(5)=10 which is the size of the model airplane
Answer: 24cm
Step-by-step explanation:
R = 25 cm
S = 7 cm
T = ?
The square of equals to the addition of the square of S and the square of T.
R^2 = S^2 + T^2
25^2 = 7^2 + T^2
T^2 = 25^2 - 7^2
T^2 = 625 - 49
T =✓576
T = 24cm
