Step-by-step explanation:
x = hours Ali was charged for
150 + 50 x = 375
- 150 -150
50x = 225
÷ 50. ÷50
x = 4.5 hours
Answer:
The answer is x = -7.7 ans x = -1.3
Step-by-step explanation:
Here is the work I did. I used the quadratic formula. Sorry about my bad handwriting.
Answer:
If I am not mistaken, I believe the answers are 1.425 and 17.57, so A and D.
Step-by-step explanation:
As you are looking for 1.75 minutes (or 105 seconds), the best thing to do is to find how many words she can type in 0.25 minutes (this is a quarter, and you can divide 1.75 by this). To find a quarter, you have to divide by 4, 120/4= 30. Therefore, every 15 seconds, Dorothy can type 30 words. As you've got 105 seconds, divide this by 15, and this gives you 7. Then multiply 30 by 7, and this gives you 210.
Dorothy can type 210 words in 1.75 minutes
Hope this helps :)
The simplified form of the given expression is 
.
The given expression is 
.
We need to simplify the given expression.
<h3>What are the basic laws of exponents?</h3>
The basic laws of exponents are as follows:
Now, 
Therefore, the simplified form of the given expression is .
To learn more about the exponents visit:
brainly.com/question/26296886.
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