Answer: B
Step-by-step explanation:
Step-by-step explanation:
<em>Since, the ratio of big stickers to small stickers are </em>5:2
Therefore,
Let, the big stickers and small stickers be 5x and 2x respectively,
Now,
- 5x+2x=140
- 5x+2x=1407x=140
- 5x+2x=1407x=140x=140/7
- 5x+2x=1407x=140x=140/7x=20
Now,
putting the value of x in 5x and 2x we get,
- Big stickers=5x=5×20=100
- Small stickers=2x=2×20=40
X = 5 - y...so sub 5 - y in for x in the other equation
5(5 - y) - 4y = 7...distribute thru the parenthesis
25 - 5y - 4y = 7...simplify
25 - 9y = 7....subtract 25 from both sides
-9y = 7 - 25
-9y = - 18...divide both sides by -9
y = -18/-9
y = 2
x = 5 - y
x = 5 - 2
x = 3
solution is (3,2)
Answer:
5/18, 13/18
Step-by-step explanation:
The basic probability of anything is Specific Outcome / Total Outcomes
The specific outcome here is pulling a purple marble. We see there are 5 purple marbles therefore there are 5 ways to get them. The total outcomes are the total number of marbles which is 18. Therefore, the answer is 5/18
The complement of a probability is 1 minus the original probability, so, it would be 1 - 5/18 here getting us 13/18 as the answer.
Step-by-step explanation:
24 ÷ 3:4
= 24 / 3 / 4
Basics
a / b / c = a / b / c / 1
....1 is normally invisible since a number
divided by 1 is itself. i wrote 1 down to show the reciprocal property.
a/b/c/1 = a/b × 1/c = a/bc ...Flip the number you're dividing with.
24/3/4 = 1/24 × 3/4 = 3 / 96 = 3 × 1 / 3 × 32 ...cancel the 3s'
= 1 / 32.