The computer cost is $3000
Step-by-step explanation:
The given is:
- The ratio of the price of a tv to the price of a computer is 13 : 15
- The tv 400 dollars cheaper than the computer
We need to find the cost of the computer
Assume that the price of the computer is $x
∵ The ratio between the prices of the tv and the computer is 13 : 15
∵ The price of the computer is $x
∵ The price of the tv 400 dollars cheaper than the computer
- That means the price of the tv is less than the price of the
computer by $400
∴ The price of the tv is $(x - 400)
By using the ratio method
→ tv : computer
→ 13 : 15
→ (x - 400) : x
By using the cross multiplication
∴ 15(x - 400) = 13(x)
- Simplify the left hand side
∴ 15x - 6000 = 13x
- Add 6000 to both sides
∴ 15x = 13x + 6000
- Subtract 13x from both sides
∴ 2x = 6000
- Divide both sides by 2
∴ x = 3000
The computer cost is $3000
Learn more:
You can learn more about the ratio in brainly.com/question/4847829
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Answer:
true they walk the same distance
Step-by-step explanation:
8/10 is equal to 0.8
also 12/15 is also 0.8
therefore walking the same distance
Answer:
i think its philip releases an arrow from a sholder height 4 ft.
Step-by-step explanation:
Answer:
Let s represent the number of student tickets sold.
Let g represent the number of general admission tickets sold.
s + g = 350
3s + 5g = 1450
Answer:
y=2x+5
Step-by-step explanation:
At 0, you sit at 5 dollars. The Y axis is money spent, and the X axis is hours parked.
