Answer:
70
40 % of 70 is 28
Step-by-step explanation:
Answer:
In both cases, we have similar figures.
This means that the shape of the figures is the same, but the size is different:
PQST is similar to STNR and to NRPQ
VUYZ is similar to YZWX and to VUWX
this means that, for example, in problem 18, the ratio between ST and NR must be the same as the ratio between PQ and ST. This happens because the measure increases by the same scale factor.
With this in mind, we can solve the problem:
18)
ST = 7.5
NR = 5.5
Then the quotient ST/NR is:
ST/NR = 7.5/5.5
And, as we said above:
PQ/ST = ST/NR
PQ/7.5 = 7.5/5.5
PQ = (7.5/5.5)*7.5 = 10.23
19) Here we should have:
YZ/VU = WX/YZ
Then:
22.9/35 = WX/22.9
(22.9/35)*22.9 = WX = 14.98
Remember that you can do anything to an equation as long as you do it to both sides
so
I=PRT
divide both sides by RT
=P
P=?
I=40
R=10%=0.1
T=5
plug it in
=P
=P
80=P
answer is B, $80
Answer:
x=5
Step-by-step explanation:
2(x+4)+2x+3=3x+16
One solution was found :
x = 5