16.Eliot spent 24 minutes solving 8 math problems.At that rate, how many math problems can he solve in 54 minutes?
a.12
B.16
C.18
D.24
A?
17.Ronald got 92% of the problems correct on a test.Which number could also represent 92%?
A.9.2
B.0.092
C.9/2
D.46/50
D
18.Lakeshmi made a table showing the area of squares with different side lengths
Side length Area
4 16
5 25
6 36
7 49
How could Lakshmi find the area of a square with side length s inches?
A.Multiply s x 4
B.Multiply s x s
C.Add s + s
D.Add s+12
B
19.Marijorite built different rectangular prisms with different numbers of blocks.She wrote down the volume of each prism as she built it
Length Width Height Volume
2 4 5 40
4 6 5 120
2 3 7 42
5 2 8 80
Using the data in the table which formula can be used to find the volume of a rectangular prism?
A.V=l+w+h
B.V=lxwxh
C.V=2l+2w+2hw
D.V=2lx2wx2h
B
16 is wrong. The others are correct.
16. To find out how many math problems Eliot can solve in 54 minutes, you can set up a proportion using the given information. Since Eliot solved 8 math problems in 24 minutes, you can write the proportion as: 8/24 = x/54. To solve for x, you can cross-multiply and then divide: (8 * 54)/24 = x. This gives you x = 18. So, Eliot can solve 18 math problems in 54 minutes. Therefore, the answer is C. 18.
17. To determine which number represents 92%, you can convert the percentage to a decimal. To do this, you divide the percentage by 100. In this case, 92/100 = 0.92. So, the answer is A. 0.92.
18. To find the area of a square with a side length s inches, you can use the formula for the area of a square, which is side length squared. In this case, the side length is s, so the formula becomes s^2. Therefore, the answer is B. Multiply s by s.
19. To find the volume of a rectangular prism, you can use the formula V = length x width x height. In this case, the length is represented by l, the width by w, and the height by h. So, the formula becomes V = l x w x h. Therefore, the answer is B. V = l x w x h.