1.

Write the following ratio in simplest form: 32 min:36 min

8:9
8:36
32:9
128:144

2.
Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has left?

43:8
8:51
43:51
59:51

3.
The price of 8.4 ounces of crackers is $2.42. What is the unit price? Round your answer to the nearest cent.

$0.15 per ounce
$3.47 per ounce
$28.81 per ounce
$0.29 per ounce

4.
Jonah needs to purchase 30 juice packs for his class. While shopping, Jonah discovers the following prices for comparable juice packs. Which offers the best unit price?

15 packs for $3.95
5 packs for $2.20
20 packs for $6.20
10 packs for $3.20

5.
Solve the proportion. Where necessary, round to the nearest hundredth.

8/2 = x+3/4

13
1
7
16

6.
A dozen apples cost $2.55. At this rate, how much would 8 apples cost?

$20.40
$3.83
$0.21
$1.70

7.
Use cross products to determine which of the following pairs of ratios cannot form a proportion. (1 point)

1/3, 3/9
2/3, 4/9
2/3, 4/6
1/3, 2/6

8.
Solve the following proportion.

2/15 = 13/x

390
1.73
2.31
97.5

My answers:
1. 8:9
2. ?????
3. 0.29 per ounce
4. ????
5. 13
6. $1.70
7. 2/3, 4/9
8. 97.5

I desperately need help with 2 nd 4, can you explain how to do them please? And also, can you check the rest of my problems? Thanks!

These are all of the answers i took the test

1.A
2.C
3.D
4.A
5.A
6.D
7.B
8.D
9.D
10.C

1. Write the following ratio in simplest form: 32 min:36 min (1 point)

Correct answer (1 pt) 8:9
Unselected answer (0 pts) 8:36
Unselected answer (0 pts) 32:9
Unselected answer (0 pts) 128:144
1 /1 point
2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has left? (1 point)
Unselected answer (0 pts) 43:8
Unselected answer (0 pts) 8:51
Correct answer (1 pt) 43:51
Unselected answer (0 pts) 59:51
1 /1 point
3. The price of 8.4 ounces of crackers is $2.42. What is the unit price? Round your answer to the nearest cent. (1 point)
Unselected answer (0 pts) $0.15 per ounce
Unselected answer (0 pts) $3.47 per ounce
Unselected answer (0 pts) $28.81 per ounce
Correct answer (1 pt) $0.29 per ounce
1 /1 point
4. Jonah needs to purchase 30 juice packs for his class. While shopping, Jonah discovers the following prices for comparable juice packs. Which offers the best unit price? (1 point)
Correct answer (1 pt) 15 packs for $3.95
Unselected answer (0 pts) 5 packs for $2.20
Unselected answer (0 pts) 20 packs for $6.20
Unselected answer (0 pts) 10 packs for $3.20
1 /1 point
5. Solve the proportion. Where necessary, round to the nearest hundredth.

Start Fraction 8 over 2 End Fraction equals Start Fraction x plus 3 over 4 End Fraction (1 point)
Correct answer (1 pt) 13
Unselected answer (0 pts) 1
Unselected answer (0 pts) 7
Unselected answer (0 pts) 16
1 /1 point
6. A dozen apples cost $2.55. At this rate, how much would 8 apples cost? (1 point)
Unselected answer (0 pts) $20.40
Unselected answer (0 pts) $3.83
Unselected answer (0 pts) $0.21
Correct answer (1 pt) $1.70
1 /1 point
7. Use cross products to determine which of the following pairs of ratios cannot form a proportion. (1 point)
Unselected answer (0 pts)
Correct answer (1 pt)
Unselected answer (0 pts)
Unselected answer (0 pts)
1 /1 point
8. Solve the following proportion.

Start Fraction 2 over 15 End Fraction equals Start Fraction 13 over x End Fraction (1 point)
Unselected answer (0 pts) 390
Unselected answer (0 pts) 1.73
Unselected answer (0 pts) 2.31
Correct answer (1 pt) 97.5
1 /1 point
9. ΔABC and ΔDEF are similar. Find the values of x and y.
Triangle ABC is shown with side AB labeled y, side BC labeled 12, and side CA labeled 21. Triangle DEF is shown with side DE labeled 6, EF labeled 4, and FD labeled x. (1 point)
Unselected answer (0 pts) x = 7, y = 12
Unselected answer (0 pts) x = 21, y = 12
Unselected answer (0 pts) x = 14, y = 18
Correct answer (1 pt) x = 7, y = 18
1 /1 point
10. The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle? (1 point)
Unselected answer (0 pts) 24m2
Unselected answer (0 pts) 192m2
Correct answer (1 pt) 72m2
Unselected answer (0 pts) 108m2
1 /1 point

2.

Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has left?

43:51

4.
Jonah needs to purchase 30 juice packs for his class. While shopping, Jonah discovers the following prices for comparable juice packs. Which offers the best unit price?

15 packs for $3.95 >> Multiply each by 2
5 packs for $2.20 >> Multiply each by 6
20 packs for $6.20 >> Multiply each by 1.5
10 packs for $3.20 >> Multiply each by 3

OMG BOOP, YOU WERE RIGHT!

The answers is

1.A
2.A
3.c
4.a
5.d
6.b
7.a
8.b
9.a
10.a

BOOP IS SUPER WRONG I GOT A 2/10

Actually BOOP was right! :) Great job

1. 8:9

2. 9:5
3. $0.30 per ounce
4. 60 km/h
5. 27
6. 10
7. 40
8. (2/3),(4/9)
9. 9
10. 2:1
This is for cennexus

1.A

2.C
3.D
4.A
5.A
6.D
7.B
8.D
9.D
10.C

BOOP IS RIGHT. JUST GO WITH BOOP PEOPLE.