The value of y varies directly with x. When y=80, x=1/2. What is the value of y when x is 2 1/4?
1 answer:
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Answer:
- 96
- 6.9
- 25%
- 8%
- 79
- 33.8
Step-by-step explanation:
Here is the complete question: Find each number. Round to the nearest tenth if necessary.
- 80% of 120.
- 115% of 6
- What percent of 128 is 32?
- 3 is what percent of 36?
- 23.7 is 30% of what number?
- 71/2% of what is 12?
1) 80% of 120
=
= 96
∴ 80% of 120= 96
2)
=
∴ = 6.9
3) What percent of 128 is 32?
=
=
4) 3 is what percent of 36?
=
=
5) 23.7 is 30% of what number?
Let the number be "x".
⇒
Cross multiplying
⇒
∴ x= 79.
6) 71/2% of what is 12?
Lets assume the required number be "x".
⇒
cross multiplying both side.
⇒x= 33.8
∴ 71/2% of 33.8 is 12
Answer:
C
Step-by-step explanation:
Since the graph hits 0 at x = 0, your y intercept is 0.
The graph is decreasing which means you have a negative slope.
They gave you a coordinate so use it to find the slope.
That's your slope.
C is the correct answer.