Two students went to the school store. Each had a $20 bill. Jacob bought 3 of an item and received change. Quinn bought 7 of the same item and also received
change. The total amount of change between them was $25. Write and solve an
equation to find which item the students bought.*

T-Shir
$15.00
Many schools have a student store run by
students. Different school stores sell
different types of items. Some things you
might find in a school store are school
supplies, such as pencils and notebooks,
school merchandise such as a sweater with
the school mascot, and snacks.
COS COB
SCHOOL
School Store Prices
Pencil
0.10

Pen
0.25
Poster board
1.50
Notebook
3.00
Eraser
0.10

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

2 x 503

step-by-step explanation:

its 1006