5 × 70 = 5 × 7 tens = 350
WHY?
1 ten = 10 ones
70 ÷ 10 = 7
So 7 tens.
Hope I helped ya!
With that information we can create the equation
10x + 5000 = 20x
where x is the number of earphones produced
10x is the cost to make each earphone, 5000 being the fixed costs of manufacturing, and 20x being the total revenue of selling each earphone for $20
Now to solve the equation:
subtract both sides by 10x
10x - 10x + 5000 = 20x - 10x
5000 = 10x
Now divide both sides by 10
5000/10 = 10/10 x
500 = x
Answer: D
Hope it helps :)
7:4 is the original ratio.
Apples to oranges
14:x
7*2 = 14
4*2 = 8
14:8
Answer: There are 8 oranges
You need to be more specific and show me the problem.
