-20 because 40 is a positive and spent is negative
Answer:
The percentage increase in Jayana's postcard collection is 15%
Step-by-step explanation:
Jayana had 20 postcards last year
With 3 more postcards this year
From the given equation Quantity = Percent x Whole
Here;
Let P = Percent/100%
Quantity = Increment in postcard = 3 postcards
Whole = The total postcards from last year = 20 postcards
Hence,
3 postcards = P x 20 postcards
P = 3/20 = 0.15
Recall P = Percent/100%
∴ Percent = P x 100% = 0.15 x 100% = 15%
The percentage increase in Jayana's postcard collection is 15%
Answer:
15 bulbs are red.
Step-by-step explanation: Because 75 is 3 times as big as 25 so every 1 green light bulb 3 red light bulbs will be deflective.
Answer:
12 yd.
Step-by-step explanation:
Answer:
A= 5278.34 in ²
Step-by-step explanation:
A= r² × 3.14 (pi)
Radius = Diameter ÷ 2
82 ÷ 2 = 41
41²= 1681
1681 x 3.14 = 5278.34
hope this helps