Answer:
a. 8 years
b. $49.20
Step-by-step explanation:
The computation is shown below:
a. The mark age is
Given that
232 is 8 times of the sum of mark and his sister ages
And, his sister is 21
So,
Let us assume the mark age be x
now
8(x + 21) = 232
x + 21 = 29
x = 29 -21
x = 8
b. The original price of the socks is
As each pair get $3 off
And she bought 6 pairs for $31.20
= $31.20 + 6 × $3
= $31.20 + 18
= $49.20
Answer:
a type of plot or mathematical diagram using coordinates to display values for typically two variables for a set of data
Step-by-step explanation:
In a scatter plot has is a line of best fit which shows the closest values to the many on the plot.
Answer:
3*9 = 27
5*5 = 25
27 + 25 = 52 < 60
She doesn't have enough cloth. She needs 8 square feet of cloth.
Answer:
w = 10
Step-by-step explanation:
10w + 3w + w + 40 = 180 Combine like terms
14w + 40 = 180 Subtract 40 from both sides
14w = 140 Divide 14 from both sides
w = 10
Answer:
choosing 1 white marble replacing it, and then choosing another white one.
Step-by-step explanation:
there is 50% chance you pick any of the blue or red marbles, but you have a higher chance to pick another white one if the first one you chose was replaced.
