Help me on 4 multiple choice questions? Best answer gets 10 points?

Question

Question 1 (Multiple Choice Worth 1 points)

[7.04] MA.6.A.5.1

Which expression calculates 81% of 59?

A) 0.81 • 5.9
B) 0.81 • 59
C) 59 • 81
D) 0.59 • 0.81

Question 3 (Multiple Choice Worth 1 points)

[8.04] MA.6.A.3.4

The circle formed by the blades of a fan has a circumference of 81 5/7 inches. What is its diameter? Use 22/7 for pi.

A) 12 in.
B) 18 in.
C) 21 in.
D) 26 in.

Question 4 (Multiple Choice Worth 1 points)

[5.06] MA.6.A.3.2

The 14 students in Mateo's computer programming class are using the computer lab. Some computers are shared by pairs of students, and 2 students work alone. Which equation could you use to determine how many computers are shared in the computer lab? Let c be the number of shared computers.

A) c/2 - 2 = 14
B) 2c - 2 = 14
C) 2c + 2 = 14
D) c/2 + 2 = 14

Question 6 (Multiple Choice Worth 1 points)

[7.05] MA.6.A.5.3

Which is the most reasonable estimate for 25% of 817?

A) 150
B) 160
C) 200
D) 270

Answer 1

Hi Hazel Eyes



Question 1 (Multiple Choice Worth 1 points)

Which expression calculates 81% of 59?



B) 0.81 • 59



Question 3 (Multiple Choice Worth 1 points)

The circle formed by the blades of a fan has a circumference of 81 5/7 inches. What is its diameter? Use 22/7 for pi.

.

D) 26 in.



Question 4 (Multiple Choice Worth 1 points)

The 14 students in Mateo's computer programming class are using the computer lab. Some computers are shared by pairs of students, and 2 students work alone. Which equation could you use to determine how many computers are shared in the computer lab? Let c be the number of shared computers.



C) 2c + 2 = 14



Question 6 (Multiple Choice Worth 1 points)

Which is the most reasonable estimate for 25% of 817?



C) 200





Shy

Answer 2

Which expression calculates 81% of 59?

81% = 0.81

B) 0.81 • 59



The circle formed by the blades of a fan has a circumference of 81 5/7 inches. What is its diameter? Use 22/7 for pi.

C = pi * D

D = C / pi

= (81 5/7) / (22/7)

= (81 * 7 + 5) / 22

= 26

D) 26 in.



The 14 students in Mateo's computer programming class are using the computer lab. Some computers are shared by pairs of students, and 2 students work alone. Which equation could you use to determine how many computers are shared in the computer lab? Let c be the number of shared computers.

1 pair = 2

C) 2c + 2 = 14



Which is the most reasonable estimate for 25% of 817?

817 * 25%

=817 / 4

=204.25

C) 200

Answer 3

1) 81% = 81/100 = 0.81

81% of 59 = 0.81 x 59 (47.79) (ans B)



2) Circumference = Pi x Diameter

81 5/7 = 572/7 = 22/7 x D

D = 572/7 x 7/22 = 572/22 = 26in (ans D)



3) 1 shared computer = C and there are 2 people per shared computer, so number of people using shared computers is 2C. since two work alone, 14 = 2C + 2 (ans C)



4) 25% = 1/4, 1/4 x 817 = approx 200 (200 x 4 = 800) note, 270 x 4 = 1080>> 817 (ans C)

Answer 4

Tyree sold t-shirts for a Math Club fundraiser. During the first week, he sold 6 t-shirts, which was 30% of his inventory. How many t-shirts were in his inventory? C) 20 Which shows the values in increasing order? C) 55%, 5 for every 8, 0.7, 4/5 If one outlier is excluded from a data set, what happens to the mode? It depends whether the outlier is a high outlier or a low outlier. Which fraction in simplest form is equivalent to 0.4? D) 24/60