She raised the price by $0.65
14.25 divided by 3 =
$4.75 ( normal price per candle)
27 divided by 5 =
$5.40 (new price per candle)
$5.40 - $4.75 = $0.65
Answer:
Step-by-step explanation:
A regular quadrilateral has 4 congruent sides and 4 angles
- False. A regular quadrilateral has 4 angles- this bit is correct. But the bit about 4 congruent sides is not true, they could be different
Answer:
37 polio vaccinations and 23 measles vaccination.
Step-by-step explanation:
Let the number of polio vaccination given=x
Let the number of measles vaccination given=y
Dr. Potter gave a total of 60 vaccinations
x+y=60
Since each polio vaccination consists of 4 doses, and each measles vaccination consists of 2 doses. A total of 184 doses was given out.
4x+2y=184
To find the values of x and y, we solve the two equations simultaneously.
x+y=60 (1)
4x+2y=184 (2)
From (1), x=60-y
Substitute x=60-y into equation 2.
4x+2y=184
4(60-y)+2y=184
240-4y+2y=184
240-184=4y-2y
56=2y
Divode both sides by 2
y=23
Recall earlier that x=60-y
x=60-23=37
Dr Potter gave 37 polio vaccinations and 23 measles vaccination.
7 over 9 should be the answer
You have to factor by grouping.
(4a - 5) (a + 4)
