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Eddi Din [679]
3 years ago
8

Evaluate the expression if x = 3 and y = 11. 3x + 2y 21 31 42 244

Mathematics
1 answer:
Dmitrij [34]3 years ago
5 0

Answer:Here, Just substitute their values, 4x + 3y= 4(3) + 3(6)= 12 + 18= 30In short, Your Answer ...

Step-by-step explanation: i am good at math lol

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Simplify. (-2)^-3 <br> ?????
Licemer1 [7]
Remember
(ab)^c=(a^c)(b^c) and
x^{-m}= \frac{1}{x^m}
so
(-2)^{-3}= \frac{1}{(-2)^3}= \frac{1}{(-1)^3(2)^3}=\frac{1}{(-1)(8)}=\frac{1}{-8}=\frac{-1}{8}
3 0
3 years ago
80% is what fraction
Mariana [72]
80% as a fraction is 4/5
6 0
3 years ago
I NEED HELP ITS DUE IN A FEW MINUTES HHHHEEELLLLPPP
mel-nik [20]

Answer:

Question 11 - B

Question 12 - C

Step-by-step explanation:

11). 4 chairs per table --> B

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12). The 24 pack is a better buy (C).

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8 0
3 years ago
How do I change 2and 2/5 to a decimal?
Kobotan [32]
2 2/5 = 5/5+5/5+2/5 or 12/5

<span>to change a fraction to a decimal you use a calculator of you change it to a fraction then to a decimal

if you multiply a fraction by its recipricol (the number fliped upside down) the you will get 1 so if you multiply 1/2 by 2/1 then you will get 1
</span>
so  you multiply 12/5 with 100/x=1200/5x=240

you change the percent to a fraction by moving the decimal place two places to the left or divide it by 100

so 240%=2.4 answer
4 0
3 years ago
Read 2 more answers
Leo reads 14 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page?
SVEN [57.7K]

Answer:

1:28 |  1:1/28

Step-by-step explanation:

We can show the first two numbers as a ratio:

14:1/2

But we want that second number to be 1 so we can multiply by 1:

28:1 <------ Pages per hour

But now we need the left to be 1, so we divide by 28:

1/28:1

Then flip:

1:1/28

6 0
3 years ago
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