In order to know the increase in the percentage, we can do this in various methods, however let's follow the method using only rule of 3; you can also do it by the variation index, however, rule of 3 is easier.

First, we need to know the difference between 756$ and 1580$:

1580 - 756 = 824$

Now let's set the rule of three, assuming that 756 is 100% innitial:

756$-------->100%

824$--------> X

Solving for X:

X = 824 * 100 / 756 = 109.9947%

And if you round this number: 109%

8 0

4 years ago

Jane's car will go 420 miles on 17.5 gallons of gasoline in highway driving.

bulgar [2K]

Answer:

a) 101.125 gallons.

b) 3312 miles.

Step-by-step explanation:

You know that Jane's car will go 420 miles on 17.5 gallons of gasoline in highway driving, therefore:

a) You can calculate the number of gallons it will take to drive 2427 miles from her house to a friend's house as following:

$\frac{420miles}{17.5gallons}=\frac{2427miles}{x}\\x=101.125gallons$

b) You can calculate the distance the car can be driven on 138 gallons of gasoline as shown below:

$\frac{420miles}{17.5gallons}=\frac{y}{138gallons}\\y=3312miles$

3 0

4 years ago

4(1/2+3/4)+(-2)<br><br> I need help

nirvana33 [79]

Answer:

Step-by-step explanation:

4(1/2+3/4)+(-2) Distribute.

2+3+(-2) Simplify.

2+3-2

5-2

Hope this helps!! Have an amazing day (｡･∀･)ﾉﾞ

5 0

3 years ago