Answer:
decimal: 0.013744
Step-by-step explanation:
kinda confused if x is x or u mean multiply
The probabilities of picking a red, blue, and yellow marble must be equal to 1. so
P(R)+P(Y)+P(B)=1
1/6+1/2+P(B)=1 making all terms have a common denominator of 6 we have:
1+3+6P(B)=6
4+6P(B)=6
6P(B)=2
P(B)=2/6
P(B)=1/3
The weight of the hamburger is 160g after two bites.
Each bite takes away 20% of the weight of the burger, so we'll divide the initial weight by a percentage to find the weight before the bite.
The starting weight is 160g. Because 20% of the weight was removed from a bite, we'll divide this weight by the percentage of the burger remaining after the bite:

80% of the burger is left after a bite. Convert this fraction into a decimal by dividing by 100:

Divide the initial weight by this decimal:

The weight of the burger before the second bite was 200.
We'll do the same procedure for the first bite. The initial weight is 200, and there is 80% of the burger remaining after the first bite. Because 80% is 0.8 in decimal form, divide 200 by 0.8:

The starting weight of the burger before the bites was
250 grams.
Answer:
6 different groups.
Step-by-step explanation:
This is the number of combinations of 2 fro m 4:
4C2 = 4! / 2! 2!
= 4 * 3 *2 *1 / (2*1*2*1
= 24/4
= 6 groups.