Question

Sadie is 3 years older than Kareem, and Kareem is twice as old as Nadra. The sum of their ages is 33.
A student used the steps below to find each person’s age.
Step 1 Write an equation, letting x represent Kareem’s age:
(x + 3) + x + 2 x = 33
Step 2 Solve the equation:
(x + 3) + x + 2 x = 33. 3 + 4 x = 33. 4 x = 30. x = 7 and one-half.
Step 3 Sadie is 10 and one-half, Kareem is 7 and one-half, and Nadra is 3 and three-fourths.
Which corrects the student’s first error?
In Step 1, the student should have used One-half x to represent Nadra’s age, and written the equation (x + 3) + x + one-half x = 33.
In Step 2, the student should have added 3 on both sides of the equation to find a solution of x = 9.
In Step 3, the solution represents Sadie’s age. Therefore, Sadie is 7 and one-half, Kareem is 4 and one-half, and Nadra is 2 and one-fourth.
In Step 3, Nadra’s age is the difference between 33 and

Answer 1

Answer:

hiii

Step-by-step explanation:

have a great day dear

Answer 2

Answer:

the equation is wrong

Step-by-step explanation:

given

sadie = 3years + kareem age

kareem = 2 * nadra age

let nadra age be x

therefore

kareem age = 2 * x

sadie = 3 years + 2x

given

sadie+kareem+nadra = 33

(3+2x) + 2x + x = 33

5x = 30

x = 6years is nadra

kareem = 2 * x

= 2 * 6

= 12 years

sadie = 3+2x

= 3+2(6)

= 15 years