3 years ago

4. Explain and correct the error made by a student who simplified this expression.

1 answer:

3 0

Answer:

I notice that the first equation has a 7x, term and the second equation has a -7x term. These terms will cancel if we add the equations together—that is, we'll eliminate the the x terms:

Step-by-step explanation:

2y+7x= -5 + 5y-7x=12

You might be interested in

A party rental company has chairs and tables for rent. The total cost to rent

dlinn [17]

I do not have any idea and any operation did you do it wrong or something because I do not get it

6 0

3 years ago

eight out of 10 dentist prefer Crest toothpaste.What is the ratio of dentist whi prefer Crest to those who do

crimeas [40]

The ratio would be 8:2

6 0

3 years ago

Kendra is participating in a fundraiser walk-a-thon she walks 4 miles in 60 minutes how many minutes will it take to walk 7 mile

Lemur [1.5K]

Answer:

105 min

Step-by-step explanation:

60 minutes ÷ 4 miles= 15 minutes per mile

15min per mile x 7 miles = 105 minutes

8 0

3 years ago

Margaret and Donovan are twins. They have each kept track of their heights every year since they were 5.

guapka [62]

Answer: Margret grew faster than donovan

Step-by-step explanation:

5 0

2 years ago

What is the value of x

slega [8]

Answer:

Step-by-step explanation:

A tangent line makes a right angle with the radius to the point of tangency. Hence this triangle is a right triangle, and x° is the complement of 36°:

x° = 90° -36° = 54°

The value of x is 54.

3 0

3 years ago