Answer:
Sister Is a PIG
Step-by-step explanation:
and Your Friends Gets her Scraps
All of possible ratios of boys to girls that could be made is 8:16; 4:8; 2:4; 1:2
Hope it helps, Brainliest if it <3
Answer:
(0.392 ; 0.508)
Step-by-step explanation:
Given that :
p = 45% = 0.45
α = 1 - 90% = 0.1
Zα/2 = Z0.01/2 = Z0.05 = 1.645 (from Z standard table).
Using the relation :
p ± Z0.05*sqrt((p(1-p))/n)
p ± 1.645 * sqrt(0.45(0.55)/200)
p ± 1.645 * sqrt(0.0012375)
p ± 1.645 *0.0351781
0.45 - (1.645 * 0.0351781) = 0.3921320255
0.45 + (1.645 * 0.0351781) = 0.5078679745
(0.392 ; 0.508)
Answer:
The number of packages Justin needs to buy to get x cards is x divided by 3.
- <u>Rule as an algebraic expresssion:</u>

Explanation:
This is a direct variation problem.
Since each package has the same number of cards, the number of cards is proportional to the number of packages.
12 baseball cards in 4 packages means that there are 12/4 = 3 cards per package, so:
- The number of cards is 3 times the number of packages.
- The number of packages is the number of cards divided by the number of 3.
So, the <em>rule in words</em> for the number of packages Justin needs to buy x cards is one third of x. This table may help you to visualize it:
Number of packages: 1 2 3 4 5
Number of cards: 3 6 9 12 15
To find the <em>algebraic expression</em> that describes the same rule, you can set the following proportion:

Where y is the number of packages and x is the number of cards.
And from that you solve for y:
