Do the ratios 1:2 and 7:14 form a proportion?
yes
1 x 7= 7
2 x 7 = 14
-8 x 5?
-40
n + 80= 126
n= 46
The measure of an angle is 81°. What is the measure of its complementary angle?
9 degrees
A package of party favors contains 14 favors, of which 7 are glitter balls.What is the probability that a randomly selected favor will be a glitter ball?Write your answer as a fraction or whole number.P(glitter ball)=
1/2
Are the ratios 3:5 equivalent to 12:20
yes
3 x 4= 12
5 x 4 = 20
-28 + - 35?
-63
5n = 15
n = 3
The measure of an angle is 101°. What is the measure of its supplementary angle?
79 degrees
Gabby is a makeup artist and carries a lot of makeup around with her. She has 20 cosmetics in her bag, including 4 eye shadows.
What is the probability that a randomly selected makeup item from her bag will be an eye shadow?
4/20
A 2-gallon container of window cleaner costs $11.28. What is the price per quart?
$5.64
-5 - 2?
-7
n - 212 = 422
n = 634
The measure of an angle is 143°. What is the measure of its supplementary angle?
37 degrees
What is the median of the following numbers?
( 5, 6, 7, 5, 4, 3, 2)
5
What is 25% of 68?
17
1/4 + 2/3
11/12
(3y + 5) + (6y + 5)?
9y + 10
Angles that are adjacent means they _______ to each other.
next
What is the mode of the following numbers?
( 5, 6, 7, 5, 4, 3, 2)
5
How much money does Molly need to buy 7 crystal vases and 8 rugs?
rug: $55
crystal vase: $88
ceramic vase: $80
$1,056
What is the product of -5.3 and 2?
-10.6
2(3c)?
6c
A right angle equal ___ degrees?
A straight angle equals ______ degrees?
90/ 180
What is the range of the following numbers?
( 28, 30, 40, 15)
40-15= 25