Math

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Write a ratio for the situation in three ways, comparing the first quantity to the second quantity.
A zoo has 19 monkeys and 10 chimpanzees.

19 to 10, 19:10, (This)
10 to 29, 10:29,
19 to 29, 19:29,
10 to 19, 10:19,


Write three ratios equal to 5/40.

2/14, 3/21, 4/28
1/8, 2/16, 3/24
1/9, 2/18, 3/27
5/40, 5/45, 5/50


Use the unit price to find the total price.

9 gallons at $1.92 per gallon

$8.64
$18.18
$17.28
$21.33

5. You pay $1.75 for 5 bagels. What is the unit price?

$0.09 per bagel
$0.45 per bagel
$0.35 per bagel
$0.44 per bagel

6. Which is the best buy?

$12.60 for 7 bottles of juice
$10.98 for 6 bottles of juice
$18.10 for 10 bottles of juice
$16.38 for 9 bottles of juice

Determine which ratio forms a proportion with 7/2 by finding a common multiplier.

35/8
70/20
28/10
70/8 (This)


Determine which ratio forms a proportion with 10/6 by using cross products.

15/12
30/9
20/9
30/18


A truck needs 7 gallons of fuel to travel 56 miles. Can the truck travel 48 miles with 6 gallons of fuel? Explain.

No; 7/56 and 48/6 are not proportional because 7 × 6 48 × 56.
Yes; 7/56 and 48/6 are proportional because 7 × 6 = 48 × 56.
No; 7/56 and 48/6 are not proportional because 7 × 48 6 × 56.
Yes; 7/56 and 48/6 are proportional because 7 × 48 = 6 × 56.


A machine takes 4.2 hours to make 7 parts. At that rate, how many parts can the machine make in 28.8 hours?

48 parts
41 parts
172 parts
17 parts

11. In a survey, one out of ten people named blue as their favorite color. Three out of five named red. If 1,100 people were included in the survey, how many named blue or red as their favorite color?

330 people
770 people
440 people
660 people


Solve the proportion using cross products. Round to the nearest hundredth if necessary

22 miles/55 hours = 12 miles/h hours

48
30
45
22


Los Angeles is about 385 miles from San Francisco. How far apart would the cities be on a map with a scale of 1 in. = 25 mi? If necessary, round to the nearest hundredth.
15.4 in.
16.04 in.
15.65 in.
14.4 in.

A package of spaghetti weighs 266 grams. How many ounces does the package weigh? 1 oz ≈ 28 g.


18. a. Determine whether the ratios 10/20 and 30/60 can form a proportion by finding a common multiplier.
b. Show that the ratios in part (a) are equal by writing them in simplest form.

  • Math -

    My answers;
    19 to 10, 19:10,
    5/40, 5/45, 5/50
    $17.28
    $0.35 per bagel
    $18.10 for 10 bottles of juice
    70/8
    20/9
    No; 7/56 and 6/48 are not proportional because 7 × 48 does not equal6 × 56.
    48 parts
    330 people
    22
    9.5 oz
    I have no idea what the last answer would be.

  • Math -

    Write three ratios equal to 5/40

  • Math -

    You need to learn to do your own work. Okay? Your education is gonna go downhill but whatever.

  • Math -

    7/8

  • Math -

    total cheating

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