Answer:
Step-by-step explanation:
Adding 2a to both sides
Taking sqrt on both sides
1050.28 Kerry’s money (10years later)
1364.56 Kerry’s money(20years later)
1159.4 Andy’s money (10years later)
1636.8 Andy’s money(20 years later)
Answer:
11/19
Step-by-step explanation:
Firstly, we need to know the total number of instructors. This is equal to 7+5+4+3 = 19 instructors.
The probability of selecting a science instructor is 4/19
The probability of selecting a math instructor is 7/19
The probability of selecting either a science or a maths instructor is 4/19 + 7/19 = 11/19
Answer:
1 5/12 i think im sorry if i get it wrong.
Step-by-step explanation:
x and y are the packs of organic and inorganic fertilizer, respectively.
pounds of nitrogen added = 2x + 6y = 120
pounds of potassium added = 3x + 2y = 54
eliminate the y terms. subtract the first equation from 3 times the second equation.
9x + 6y = 162
-2x - 6y = -120
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7x = 42
x = 6
y = 18
