14-01-2019
Mathematics

contestada

john spends $112 total. He buys 11 items total. Staplers are $7 and 3 hole punches are $12. how many of each did he purchase?

Respuesta :

offguard offguard

14-01-2019

Let x=staplers and y=hole punches.

We have:

x+y=11

7x+12y=112

7x+7y=77

5y=35

y=7

x+7=11

x=4

Therefore, he bought 4 staplers and 7 hole punches.

Answer Link

Otras preguntas

HELP PLZ Warmer air masses are most likely to come from what regions. A.Tropical B.temperate C.polar D.none of the above

What is a line or group of lines repeated throughout a poem

What factor influenced African Americans to migrate from the South to Northern cities?

Multiply. –6 • (–13)

true or false:cells cannot use the energy of glucose directly because a glucose molecule contains too much energy.

Use the figure below to find the exact values of the double angles. Find sin β/2, cos β/2, tanβ/2, sin α/2, cos α/2, and tan α/2.

Solve using elimination. 3x − 5y = 18 -10x + 5y = 10

help with my government homework! Thx

higher order thinking math problem

what were families like in early africa