Topic 5 Writing Equations

Mathematical Equivalence

ON

True or False: When solving equations, the goal is to isolate the variable.

Isolate= to be by itself.

• True

• False

Write an equation to represent the following description.  let n =number

At a ​ dinner, an equal number of guests was seated at each of 5 large​ tables, and 4 ​late guests were seated at one smaller table.

There were 44 guests in all.

Let n=the number of people seated at each of the large​ tables.

What equation could you use to find the value of​ n?

Write an equation in y=mx+b form.

Mathematical Equivalence

ON

Write an equation to show the height of the tomato plant.

Mathematical Equivalence

ON

Answer explanation

Tags

CCSS.MATH.CONTENT.HSA.CED.A.2

CCSS.MATH.CONTENT.HSS.ID.C.7

Which of these descriptions does the given equation​ represent?

• Three more than nine times a number is 6.

• If you subtract nine times a number from three​, you get 6.

• Nine less than three times a number is 6.

The math club is having a car wash to raise $325.00 in profit. 

The have to spend $25 to pay for the supplies. 

They will wash 40 cars that day.

What is the equation that represents this relationship.

Let x= the amount they will have to charge each car.

• 8

• 17

• 25

• 33

Robin braided g inches. Olivia braided 12 less than 1/3 of what Robin braided. What is an expresion that would represent inches braided by Olivia.