Ryan and Kaylee are arguing about who got a better score on their recent test. Ryan took the ACT and scored a 22. Kaylee took the SAT and scored a 1450. Research shows that ACT scores follow a N(21,2.5) distribution and that SAT scores follow a N(1235,100) distribution. Use the z-score for Kaylee's SAT score to estimate what her score would have been on the ACT (assuming Kaylee performed the same on both tests). Enter that ACT score as your answer rounded to the nearest whole number.

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!

at least two

step-by-step explanation: