First you subtract 2 from both sides
then you have <span>X^2 + 6x - 7
this can factor into x-1 and x+7
this is correct because both factors multiply to negative seven and add to six</span>
Answer:
a. -175
b. -470
c. -50
d. 400
e. 350
Step-by-step explanation:
The equation for Person A is y=5x+50 while the equation for Person B is y=15x. You want to set these two rates equal to each other to find out when they’re going to be the same price and just solve it out.
1) 5x+50=15x
2) 50=10x
3) x=5
So your answer is they will charge the same amount for 5 hours.
The ratio of the months with 30 days to the months with other than 30 days is 4 : 7.
<h3>Definition of ratio </h3>
Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s).
<h3>The ratio of the months with 30 days to the months with other than 30 days</h3>
There are 4 months that have 30 days and 1 month that has 28 days. The months with more than 31 days is 7 months.
The ratio is 4 : 7.
To learn more about ratios, please check: brainly.com/question/25927869
Answer:
In Mathematics, surds are the values in square root that cannot be further simplified into whole numbers or integers. Surds are irrational numbers. The examples of surds are √2, √3, √5, etc., as these values cannot be further simplified.
Step-by-step explanation:
