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yarga [219]
3 years ago
5

In 1987 the average price of gasoline was $0.94. Today the price of gas is about $3.00. What is the percent increase from 1987 t

o today?
Mathematics
1 answer:
aleksklad [387]3 years ago
3 0

Answer:

219.15% (2DP)

Step-by-step explanation:

The difference between 0.94 and 3 is 2.06

Percentage change = (change in value/ original amount) X100.

(2.06/0.94) X 100

Which equals 219.15%

The price of gas has increased by 219.15%

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Y varies inversely with x, and k (the constant of variation) = 1.24. What is the value of y when x = 4.96?
V125BC [204]

Answer:= y = 0.25 to the nearest hundredth.

Step-by-step explanation:

In inverse variation, both variables move in opposite directions. This means that as variable 1 increases, variable 2 reduces and as variable 1 reduces, variable 2 increases.

Y varies inversely with x.

So as y increases, x reduces and as y reduces, x increases.

We would proceed by introducing a constant of variation, k

y = k/x

From the information given,

The constant of variation, k = 1.24

The value if x = 4.96

To find the value of y

y = k/x = 1.24/4.96

= 0.25 to the nearest hundredth.

6 0
3 years ago
One angle is a right angle
igomit [66]

Answer:

an angle with 90 degree is a right angle

7 0
2 years ago
Imelda, Susan, and Clara are driving go-carts around a track. Imelda takes 14 minutes, Susan takes 18 minutes, and Clara takes 1
RoseWind [281]

Answer:

630 minutes.

Step-by-step explanation:

That would be the lowest common multiple of 10, 14 and 18

10 = 2 x 5

14= 2 x 7

18 = 2 x 3 x 3

The LCM = 2 x 3 x 3 x 5 x 7

= 630.

4 0
3 years ago
How can emily use the above to make an estimate for 576 ÷8
Grace [21]

Given the equation :

576\div8​

We will use estimation to find the value of the given expression

So, the best estimation for the number 576 is = 600

The best estimation for the number 8 is = 10

So, the given expression is approximately = 600 ÷ 10 = 60

===================================================================

We can calculate the error of the approximation as following :

The actual value is : 576 ÷ 8 = 72

So, the difference is = 72 - 60 = 12

so, the percentage of error will be :

\frac{12}{72}\cdot100=16.7\%

7 0
1 year ago
Charlie is 4 more than twice as old as Frank. Frank is 3 years younger than Bob,
marysya [2.9K]

Answer:

16

Step-by-step explanation:

x + 3= 9

x = 6

2x + 4= 2*6 + 4

2x + 4 = 12 + 4

2x + 4 =16

Charlies 16

hope it helps

7 0
2 years ago
Read 2 more answers
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