Answer:
D.20x+25y=210
She bought 5.2 skirts
She cannot buy part of a skirt, so if she spent exactly 210 she cannot buy 4 shirts and 5.2 skirts. NO
Step-by-step explanation:
Total cost = shirts * cost per shirt + skirts * cost per skirt
210 = x *20 + y * 25
If she bought 4 shirts x=4
210 = 4*20 + 25y
210 = 80 + 25y
Subtract 80 from each side
210-80 = 80-80 +25y
130 = 25y
Divide by 25
130/25 = 25y/25
5.2 = y
Part A
20x + 25y = 210 --> D.
Part B
If jane purchased exactly 4 shirts she must have purchased Exactly ___ skirts. (round to the nearest tenth)
20*4 + 25y = 210 --> y = 5.2
is it possible for jane to purchase exactly 4 shirts? ____(yes or no)
no, because she can't buy 5.2 skirts.
3- 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
4- 4, 8, 12, 16, 20, 24, 28, 32, 36, 40
7- 7, 14, 21, 28, 35, 42, 49, 56, 63, 70
HOPE IT HELPED
market
<u>Market</u>
1 dozen bagels = 12 bagels
⇒ Cost per bagel = $7.00 ÷ 12 = $0.58 (nearest cent)
<u>Bagel shop</u>
Cost per bagel = $0.60
As $0.58 < $0.60 the market is a better buy
50 seconds.
Hope this helps!
It will take 2.2 hours for the trains to meet.
Given,
Distance between two trains = 396 miles
Speed of one train = 95 mph
Speed of other train = 85 mph
Combined speed of trains = 95+85 = 180 mph
Distance = Speed * Time
Time =
Time = 2.2 hours
Keywords: speed, distance
Learn more about distance at:
#LearnwithBrainly