4x+10=90
4x=80
x=20
Why 90°? This is because the angle subtended in a semi-circle to the circumference is 90°.
Answer:
p=(l+b) 2
p=38
l+ b= 38/2=19
if=7.
l=19-7
= 12
Step-by-step explanation:
Answer: D
Step-by-step explanation:
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
She can dance for four months with $400 dollars
Step-by-step explanation:
14 - 10 1/6
14 - 10.16
= 3.84