Answer:
notebook: $2.5
pen: $1.5
part B, he can buy 3 pens
Step-by-step explanation:
A
let the cost of notebook be n, cost of pen be p
1. 4n + 3p = 14.5
2. 5n + 6p = 21.5
by 1, you can get 3p = 14.5 - 4n, put it into 2
5n + 2(14.5 - 4n) = 21.5
5n + 29 - 8n = 21.5
3n = 29 - 21.5 = 7.5
n = 2.5
put n = 2.5 into 1
4(2.5) + 3p = 14.5
3p = 4.5
p = 1.5
B
Waseem buy 3 notebooks for each pen, let number of pen be m, then the number of notebook will be 3m
m(2.5) + 3m(1.5) < 27
2.5m + 4.5m = 7m < 27
m < 27/7
maximum integer value for m = 3
Answer: The number can be used to express the change in temperature= -14
Step-by-step explanation:
Given: The temperature in evening dropped by .
Thus, the change in temperature =
Since the temperature in evening is dropped or decreased , thus in integers the change in temperature =
Therefore, the number can be used to express the change in temperature= -14
Answer:
A recent census found that 52.2% of adults are female, 10.2% are divorced, 6.1% are divorced females. For and adult selected at random,
Step-by-step explanation:
Answer:
114
Step-by-step explanation:
Angle made at the center with same arc is always equal to the measure of the arc. so m_ FGH is 114
Answer:
Area = π r 2
C
360
where:
C is the central angle in degrees
r is the radius of the circle of which the sector is part.
π is Pi, approximately 3.142
Step-by-step explanation: