Pupils that chose Band: 60%
Pupils that chose Chorus: 40%
Boys in band: 70%
Boys in chorus: 30%
Probability of choosing boy = Probability of boy in band + Probability of boy in chorus
P = 0.6 x 0.7 + 0.4 x 0.3
P = 0.54
The answer is D.
Answer:
i thnk 10
Step-by-step explanation:sorry
Complete question :
The sugar maple tree in Joshua's yard is 1/4 the age of the oak tree in his yard. The sugar maple tree is 20 years old. How old is the oak tree?
Answer:
80 years
Step-by-step explanation:
Given that :
Sugar maple tree = 1/4 age of oak tree
Age of sugar maple tree = 20
Age of oak tree = x
20 = 1/4 * x
20 = x / 4
Multiply both sides by 4
20 * 4 = (x / 4) * 4
80 = x
Hence, Age of oak tree = 80 years
Sharon runs a screen-printing business.to print t-shirt each day,it costs her $200 in labor plus $5 per t-shirt for materials.her income is $15 for each t-shirt she sells.how many t-shirts does sharon need to
Sell each day in order for her coast to equal her income for that day?
Answer:
Answer A
Step-by-step explanation:
slope= (c+d-(c-d))/(c-d-(c+d))=2d/(-2d)=-1
