Isabella spent less than $14.00 for glass beads ,paintbrushes ,poster board, and paint she spends $1.68 on beads and $3.96 on paint she buys more than 3 poster bards and more than 3 paintbrushes find how many ounces of glass beads and how many jars of paint she buys then suggest the number of poster boards and paintbrushes she might buy for the total spent. glass beads cost $0.28 per ounce, paintbrush cost 0.95,poster boards cost $0.75,paint cost $0.99.

Isabella bought

Step-by-step explanation:

COST OF ITEMS

Glass beads cost $0.28 per ounce

Paintbrush cost $0.95

Poster boards cost $0.75

Paint cost $0.99

How many ounces of glass beads bought at the cost of $1.68 =1.68/0.28 = 6 Ounces

She bought 6 Ounces of Glass beads

How many jars of paint she bought at $3.96 = 3.96/0.99 = 4 Jars

She bought 4 jars of paint

Money spent so far = 14 – (1.68 + 3.96) = $8.36

Cost of 1 paintbrush plus cost of 1 poster board =0.95 + 0.75 = $1.7

The number of paintbrushes and poster boards that can be bought with the cash left is =8.36/1.7 = 4.92, so we can buy approximately 4 each of paintbrush and poster board, which is more than 3 as required.

I will suggest she buy 4 paintbrushes and 4 poster boards.

4 paintbrushes will cost 4*0.95 =$3.8

4 poster boards will cost 4*0.75 = $3

Total amount spent for all four items= (1.68 + 3.96) + (3.8 + 3) = $12.44

This shows that the total amount spent ($12.44) is less that $14

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.