For solving varible's and for real life questions.
EXAMPLE when you want to figur out what does X eqles
X×4=12 you have to take 12÷4 and that eqles 3
Answer:
Step-by-step explanation:
From the Venn diagram, n(AUB)=31
The given probabilities in the option are calculated below:
The only correct option is the probability of B which is
its been a minute since ive done this but im pretty sure the answers are
1.C
2.A
3.C
4.B
5.A
hope it helps
First, let's make all the mixed fractions into improper fractions. To do that, we multiply the whole number by the denominator and add the numerator; this new number becomes the numerator while we keep the same denominator, thus:
3 2/7 = 3 * 7 + 2 / 7 = 21 + 2 / 7 = 23/7
1 6/7 = 1 * 7 + 6 / 7 = 7 + 6 / 7 = 13/7
Our new problem is
23/7 - (13/7 + 2/5)
The next step to be able to simplify this is to have common denominators. To do that here, we will multiply the first two fractions by 5/5 and the third fraction by 7/7, thereby making all three fractions have a denominator of 35:
5/5(23/7) - [5/5(13/7) + 7/7(2/5)]
115/35 - (65/35 + 14/35)
Finally, we can add the fractions in the parenthesis, and then subtract that number from 115/35:
115/35 - 79/35
36/35
Answer:
36/35