Answer:
Ashley bought 6 rainbow stickers and 8 balloon stickers for her little sister.
Step-by-step explanation:
Let the number of rainbow sticker be x and number of balloon stickers be y.
Cost a single rainbow sticker= 6 cents
Cost a single balloon sticker= 4 cents
Cost a single x rainbow sticker= 6 cents × x
Cost a single y balloon sticker= 4 cents × y
Total number of stickers bought = 14
x + y =14 ..[1]
Total money spend on stickers = 68 cents
6x cents+4y cents=68 cents
...[2]
Putting value of from [1] into [2];
x = 14 - y
x = 14 -y =14 - 8 = 6
Ashley bought 6 rainbow stickers and 8 balloon stickers for her little sister.
Answer:
7:8
Step-by-step explanation:
First, you need to find out how many men there are. 150-80=70 men. The ratio would be 70:80. Then you need to simplify it. the simplified answer is 7:8
Answer:
(8x - 5y)(8x + 5y)
Step-by-step explanation:
To factor the expression, use the difference of squares pattern. A difference of squares is subtraction between two perfect squares and factors as a² - b² = (a-b)(a+b).
The expression has the perfect squares 64x² and 25y². Take the square root of each. The factors become (8x - 5y)(8x + 5y).
3:1 ......................................................
Answer:
a) 0.705
b) 0.976
c) 0.01
d) 0.09
Step-by-step explanation:
We have to find the area under the standard normal curve.
a) area under the standard normal curve that lies outside the interval between z= −1.98 and z=0.61.
b) area under the standard normal curve to the left of z=1.98
c) area under the standard normal curve to the right of z= 2.34
d) area under the standard normal curve that lies between z= −0.94 and z= −0.63
