Solving Equations with Rational Numbers

Question 1

x =

Revolt · Accepted Answer

4.7

Question 2

x =

Revolt · Accepted Answer

2.6

Question 3

Which equation represents the scenario?6.25x + 12x = 30.75✔ 6.25x + 12 = 30.756.25x + 30.75 = 1230.75 + 12 = 6.75x

Revolt · Accepted Answer

✔ 6.25x + 12 = 30.75; 6.25x + 12 = 30.75; 3

Question 4

How many people went to the movies?2✔ 345

Revolt · Accepted Answer

✔ 3

Question 5

Which steps can be used to solve StartFraction 6 Over 7 EndFraction x + one-half = StartFraction 7 Over 8 EndFraction for x? Check all that apply.

Revolt · Accepted Answer

Subtract from both sides of the equation.; Divide both sides by .; Multiply both sides by .

Question 6

In which step did Jerry make an error?

Revolt · Accepted Answer

In step 5, he should have multiplied both sides by .

Question 7

Bobby claims that Peter started with 21 cards. Which statements are true about verifying Bobby’s claim? Check all that apply.

Revolt · Accepted Answer

Substitute 21 for x in the original equation.; Bobby’s claim that x = 21 is correct.; The result of verifying Bobby’s work is 9 = 9.

Question 8

These equations represent different possibilities for a waiter earning $11.25 for waiting on one table for one hour. The constant is the hourly rate and the coefficient represents the fraction of the bill, b, the customers left as a tip. Which equation correctly represents the hourly rate and tip for a bill of $30.00?

Revolt · Accepted Answer

5.25 + b = 11.25

Question 9

Carrie’s allowance was $.

Revolt · Accepted Answer

24

Question 10

Question 12

Revolt · Accepted Answer

6.25x + 12 = 30.75; 3

Solving Equations with Rational Numbers Answers

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