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Phantasy [73]
3 years ago
14

Simplify 2x2 - y for x = 3 and y = -2.

Mathematics
1 answer:
Bingel [31]3 years ago
8 0

Answer:

16

Step-by-step explanation:

2x2-y

2(3)2-2

2(9)-2

18-2

16

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Please help me with this​
Tatiana [17]
<h2><u>Given</u> :</h2>

The given equations are :

\longrightarrow15b + 10g = 8640 \:  \:  \:  \:  \:   - (1)

\longrightarrow b + g = 708 \:  \:  \:  \:  \:  \:  - (2)

Let's solve for g in equation (2) :

\longrightarrow b + g = 708

\longrightarrow g = 708 - b \:  \:  \:  \:  \:  - (3)

now, let's plug value of g from equation (3) into equation (1) :

\longrightarrow15b + 10g = 8640

\longrightarrow15b + 10(708 - b) = 8640

\longrightarrow15b - 10b + 7080 = 8640

\longrightarrow5b = 1560

\longrightarrow b = 312

plugging value of b in equation (3) :

\longrightarrow g = 708 - b

\longrightarrow g = 708 - 312

\longrightarrow g =39 6

since " g " represents ground seats, number of ground seats :

=》396

And " b " represents balcony seat, therefore it is equal to :

=》312

\mathrm{ ☠ \: TeeNForeveR \:☠ }

4 0
4 years ago
J = K (1+ p/100) make p as a subject
olganol [36]

Answer:

p = 100(J/K - 1)

Step-by-step explanation:

When we want to make a variable the subject of an equation, we want to get that variable by itself on one side of the equation - to unwrap it from all the operations attached to it.

Here's what the process looks like for p:

J=K(1+p/100)\\J/K=1+p/100\\J/K-1=p/100\\p=100(J/K-1)

8 0
3 years ago
In the equation y = 6.7x, what is the constant of proportionality
devlian [24]

The constant in an equation would be the number multiplied to x,

In the equation y - 6.7x, the constant would be 6.7

4 0
3 years ago
I really need help with this along with the steps. Please help &amp; I will mark brainliest.
RSB [31]

the awnser is x=17 first you combine 3x and 2x then it leaves x-5=12 then you add 5 to 12 makes 17 then divide by 1 and you get x=17. this is the godly awnser!

4 0
3 years ago
Can somebody help me solve them
lora16 [44]

Answer:

Step-by-step explanation:

4 0
4 years ago
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