Math
posted by Grant
1. 2(y + 1) for y = 2 (1 point)
6
5
7
8
2. start fraction lower d plus lower g over lower h end fraction for d = 29, g = 16, and h = 9 (1 point)
8
2.375
5.375
5
3. The cost in dollars of a school banquet is 74 + 12n, where n is the number of people attending. What is the cost for 52 people? (1 point)
$550
$698
$624
$138
4. Write a word phrase for p – 4. (1 point)
a number plus 4
a number decreased by 4
the product of a number and 4
the quotient of a number and 4.
5. A basketball player scores 10 points per game. Write an algebraic expression to show how many points she might score in n games. (1 point)
10n
10 + n
10 ÷ n
n – 10
Use mental math to solve the equation.
6. x – 15 = 19 (1 point)
4
34
–4
–34
7. Jake scored about twice as many points as Willie. Jake scored 22 points. Write an equation and use it to estimate the number n of points Willie scored. (1 point)
n + 2 = 22; about 20 points
n – 2 = 22; about 24 points
2n = 22; about 11 points
n ÷ 2 = 22; about 44 points
8. –13x = –65 (1 point)
–845
845
–5
5
9. Solve.
start fraction r over 9 end fraction equals negative 4 (1 point)
negative 36
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