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allochka39001 [22]
3 years ago
11

If y = 12 when x = 9 find, x when y = 4

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
6 0

Answer:3

Step-by-step explanation:

12/4=3, 9/3=3

hope it helps

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Tiffany is packing her bags for her vacation. She has 8 unique toy animals, but only 4 fit in her bag. How many different groups
dalvyx [7]

Answer:

70

Step-by-step explanation:

GIVEN: Tiffany is packing her bags for her vacation. She has 8 unique toy animals, but only 4 fit in her bag.

TO FIND: How many different groups of 4 toy animals can she take.

SOLUTION:

Total unique toy animal Tiffany has =8

Total animal that fit in her bag =4

Now,

Tiffany has to select 4 toy animals from 8 animals.

Number of ways of selecting 4 toy animals =^8C_4

                                                                       =\frac{8!}{4!4!}

                                                                       =70

Hence Tiffany has 70 different ways to select group of 4 unique toys.

4 0
3 years ago
The length of a rectangle is 3 1/6 cm to longer than its width If the perimeter of the rectangle is 15 1/3 cm, What is the width
alisha [4.7K]

The width and length of this rectangle are 3 7/12cm and 4 1/12cm respectively.

Hope this helped! ^v^

7 0
3 years ago
Please help me?!!!!!!!!
Lerok [7]

Answer:

I am Koy sor

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Step-by-step explanation:

5 0
3 years ago
An aircraft has a maximum of 30 first class seats and 220 economy seats.
Sidana [21]

Answer:

x\leq 30

y\leq 220

240x+120y

Step-by-step explanation:

Let

x ----> the number of first class seats

y ----> the number of economy class seats

we know that

An aircraft has a maximum of 30 first class seats

so

x\leq 30

An aircraft has a maximum of 220 economy seats

y\leq 220

A flight will be cancelled if the money taken for the seats is less than $28,800.

so

240x+120y

therefore

Three inequalities that represent the situation are

x\leq 30

y\leq 220

240x+120y

8 0
3 years ago
The price of a 9-minute phone call is $1.35. What is the price of a 16-minute phone call?​
sleet_krkn [62]
1.35/9=0.15 which is the amount for one minute so multiple it by 16 to get 16 minutes
0.15x16=2.4 dollars
7 0
3 years ago
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