Cement
а
b
a construction supplier is
determining which type of cement
sells the best. the table shows the
rates at which each type sold. a
workday is 8 hours, and each
pound of cement sells for $4.50.
list the types of cements in order
from highest to lowest unit rate of
pounds sold per day. 7.rp.2, 7.rp.2b
selling rate
forty pounds were sold in one day.
6y = 2x, where x is in pounds and y is in
hours
after 3 hours, $45 worth had been sold.
the ratio of days to pounds sold was 2: 60.
с

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

10+4√2 is the answer. i dont have the time to explain.

the ratio would be 4: 3, the four being for jackson, and the three being not for him.