Juanita and Keenan ordered 85 flashlights and 17 sleeping bags.
Step-by-step explanation:
Given,
Cost of each flashlight = $12
Cost of each sleeping bag = $45
Total cost = $1785
Let,
x represent the number of flashlights ordered
y represent the number of sleeping bags ordered
According to given statement;
12x+45y=1785 Eqn 1
x = 5y Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 105
Putting y=17 in Eqn 1
Juanita and Keenan ordered 85 flashlights and 17 sleeping bags.
Keywords: linear equation, substitution method
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Answer:
x = 52
Step-by-step explanation:
-multiply both sides by 5
5 times 1/5 (x - 2) = 10 times 5
-simplify
x - 2 = 50
-add 2 to both sides
x - 2 + 2 = 50 + 2
-simplify
x = 52
:)
Answer:
Step-by-step explanation:
Hello,
At the beginning the population is 240,000
After 1 year the population will be
240,000*(1+7.75%)=240,000*1.0775
After n years the population will be
So after 7 years the population will be
So rounded to the nearest whole number gives 404,699
Hope this helps
Answer:
84cm
Step-by-step explanation:
l = 302-(67*2)/2
l = (302cm - 134)/2
l = 168/2
l = 84cm
Answer:
C) 8000 at 6%; 2000 at 11%
Step-by-step explanation:
Let x represent the amount invested at 11%. Then the total interest earned is ...
0.11x +0.06(10000 -x) = 700
0.05x = 100 . . . . . . . . . subtract 600, collect terms
x = 2000 . . . . . . . . . divide by 0.05
8000 is invested at 6%; 2000 is invested at 11%.