Answer:
x=9/7
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
So let's give each letter a variable
If b is 90% of c that means:
b=.9c
If a is 30% of C that means:
a=.3b
So take that second equation (a=.3b), and use the first equation to plug in for b. We get:
a=.3(.9c)
.3*.9=.27 which means:
a=.27c
.27=27%
ANSWER:
a is 27% of c
If you want to check you could give c a number.
Let's say c=100
If b is 90% of c that means . 9(100)=b
.9(100)=90=b
To get a, multiply b by 30%
.3(90)=27=a
It checks out because 27 is 27% of 100
Answer:
k=0
Step-by-step explanation:
Answer:
Ex 1: f(2)-f(1)+f(1÷2)=9÷4
Step-by-step explanation:
f(2)=2²-2×2+2=4-4+2=2
f(1)=1²-2×1+2=1-2+2=1
f(1÷2)=(1÷2)²-2×(1÷2)+2=5÷4
A= y*z- w*(z-x)=10*5-5*(5-3)=50-5*2=50-10=40 in.^2
B is the answer