4(2x+1) = 3(x+8)
8x + 4 = 3x + 24
5x = 20
∴x = 4
I know that the answer for number 10 is the first option
Mean is same as average
to find average
add up terms
divided that sum by the number of terms you have
example
mean of x,y,z
x+y+z
3 terms
(x+y+z)/3=mean
so
represent next test score as x
89+94+82+84+98+x
count how many terms ther are (6 terms)
mean is 90
(89+94+82+84+98+x)/6=90
add the like terms
(447+x)/6=90
multiply both sides by 6 to clear fraction
447+x=540
subtract 447 from both sides
x=93
she needs a score of 93 on next test
Answer:
D. $3.00
Step-by-step explanation:
3,500 multiplied by 3 is equal to $10,000
<span>Is 24° 59' 60" is equivalent to 25°? Answer: </span>yes.
60" = 1'
(59+1)' = 60' = 1 degree
24+1 =25 degree
