Answer:
(a)9
(b)I. 0.28125
II. 0.46875
III. 0.25
Step-by-step explanation:
There are a total of 32 students, therefore the number of elements in the Universal set, n(U)=32
(a)The Venn diagram is attached below.
Therefore, 9 students play both the violin and piano.
(b)
I. Probability that the student plays the violin but not the piano
Number of Students who play violin only =18-x=18-9=9
ii.Probability that the student does not play the violin
Number of Students who does not play violin only =17-x+7=17-9+7=15
P(does not play violin only)
iii.Probability that the student plays the piano but not the violin
Number of Students who play piano only =17-x=17-9=8
Answer:
4x + 7y
Step-by-step explanation:
4(x+y) + 3y
Distribute
4x+ 4y+ 3y
add like terms
4x + 7y
Answer:
b
Step-by-step explanation:
i did the test
Answer:
Question 1: how much more does 1 1/4 pounds of beef cost than 1 1/4 pounds of turkey?
$4.25/pound (beef) / 4 = $1.06 per 1/4 lb = $4.25 + $1.06 = $5.31 per 1 1/4 lb
$2.85/pound (turkey) / 4 = $0.71 per 1/4 lb = $2.85 + $0.71 = $3.56 per 1 1/4 lb
$5.31 - $3.56 = $1.75 the beef is more expensive by this much compared to the 1 1/4 lb of turkey
Question 2: question 2. brad has 10 dollars to spend at ruby's. He orders 1/2 pound of sausage and 1 1/4 pounds of chicken. How much money will he brad have after he pays for this order?
$3.25 / 2 = $1.62 per 1/2 pound of sausage
$2.50 / 4 = $0.62 per 1/4 lb of chicken + $2.50 = $3.13 per 1 1/4 lb of chicken
$1.62 (1/2 lb sausage) + $3.13 (1 1/4 lb chicken) =$4.75
$10 (budget) - $4.75 (total expense) = $5.25 Brad will have this left
Answer:
-2/-2 = 1
Step-by-step explanation:
0-2 = -2
4-6 = -2
-2/-2=1
