Question

Find two consecutive integers whose sum is 67.

Which of the following equations could be used to solve the problem?

2x = 67
2x + 1 = 67
2x + 2 = 67
x2 + 1= 67

Answer 1

also Peggy had three times as many quarters as nickels. She had $1.60 in all. How many nickels and how many quarters did she have?

Which of the following equations could be used to solve the problem?
n + 3n = 1.60
n + 3n = 160
5n + 75n = 1.60
5n + 75n = 160

Answer 2

also The cost to mail a package is $7 for the first 2 pounds and 30 cents for each additional ounce.

Which of the following functions represents the cost to mail a package if x is the number of ounces over 2 pounds?

f(x) = 7 + 0.3x
f(x) = 14 + 0.3x
f(x) = 0.3(x + 2)

Answer 3

For the first one,
I would say 2x+1=67
where x=33
so 2x+1 would equal (33+33)+1

Answer 4

next What is the equation of the line that passes through (0, -2) and has a slope of 0?

y = -2
y = 2
x = 2