Answer:
<u><em>You will need to purchase 16 more gallons that cost $2.29 each for your final amount to be $36.64</em></u>
Step-by-step explanation:
You need to find how many miles you can get per gallon to use 160 miles on 5 gallons.
= . Meaning your unit rate for this would be 32 miles for 1 gallon
You then need to find out how many gallons you will need if you're going to 640 miles and get 32 miles per gallon.
= 20
Meaning you will need 20 gallons.
Now since you already know how many gallon you have which is 4. Then you know how much you need, 20 - 4 = <u>16</u>
Then since they will be $2.29 each, multiply 2.29 by 16 to get <u>$36.64</u>
Meaning you will need to <u><em>16 gallons costing 2.29 each</em></u> and you will spend <u><em>$36.64 dollars on the trip</em></u>
Answer:
10
Step-by-step explanation:
1. 3 x 6 = 18
2. 2 x 4 = 8
3. 18 - 8 = 10
<em>A. </em>10
Answer:
They averaged 79 km per hour
Step-by-step explanation:
To find the average distance, take the kilometers and divide by the hours
1106 km/ 14 hours
79 km / hours
They averaged 79 km per hour
Answer:
Step-by-step explanation:
6 - 3(x + 1) = 18 ⇔ 3 - 3x = 18 ⇒ <em>x = 5</em>
y - 6 = 17 ⇒ <em>y = 23</em>
z - 3 = 4z ⇒ <em>z = - 1</em>
18 - 3(0) = 9w ⇒ <em>w = 2</em>
========================
I'm going to solve for you some another question you asked, I did not see the right answer... :)
There are two scenarios, because the expression under the module can be positive and can be negative: | 3x + 2| - 2 > 3 ⇔ | 3x + 2| > 5
<em>(1).</em> If <u><em>(3x + 2) is positive</em></u> then
3x + 2 > 5 ⇒ <em>x > 3</em>
<em>(2).</em> If <u><em>(3x + 2) is negative</em></u> then
- (3x + 2) > 5
- 3x - 2 > 5
- 3x > 7 ⇒ x < -
The final answer is <em>x < - 2.3 or x > 1</em>