Answer: t = 1/3
Divide both sides by 60.
<u>4 x 10 x 1.5</u><u><em>t</em></u><em> = </em> 20/60
60
Athena purchased a chain for $5 and sold it for $ 15, her profit for each chain is $15-$5. So for 2 chains, her net profit = 2*(15-5)
She also purchased bracelets for $8 and sold them for $9, her profit for each chain is $9-$8 . So for three 3 bracelets, her net profit = 3*(9-8)
Net profit from chains = 2*(15-5) or 2*15 - 2*5 (distributive property)
Net profit from chains = 2*10 or 10*2 (Commutative property)
Net profit from chains= $20
Net profit from bracelets = 3*(9-8) or 3*9 -3*8 (distributive property)
Net profit from bracelets = 3*1 or 1*3 (Commutative property)
Net profit from bracelets = $3
1. 23,763 + 20 = 23,783
2. 23,763 + 200 = 23,963
3. 75,379 - 5 = 75,374
4. 476,932 - 1,000 = 475,932
Greater than = Add
Less than = Subtract
Comment if you need any help.
Answer:
4
Step-by-step explanation:
Answer:
a. 80 students
b. 92 students
Step-by-step explanation:
Represent arts students with A and Dance students with D.
So, we have,
n(A) = 35
n(D) = 57
Required
Determine n(A or D)
Solving (a):
Here, we have:
n(A and D) = 12
n(A or D) is calculated as thus:
n(A or D) = n(A) + n(D) - n(A and D)
n(A or D) = 35 + 57 - 12
n(A or D) = 80
b. From the given details
n(A and D) = 0 because both students are not mixed up as in (a) above
Using the same formula as (a).
n(A or D) = n(A) + n(D) - n(A and D)
n(A or D) = 35 + 57 - 0
n(A or D) = 92
