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cupoosta [38]
4 years ago
9

I dont get it yall help​

Mathematics
1 answer:
docker41 [41]4 years ago
5 0

Answer:

(-2,6)

Step-by-step explanation:

The solution to the system of equations should be true for both equations.  This means that if you substitute -2 into both equations, you should get 6 as the y value for both equations.

They gave you a graph, and to find the solution from the graph, you just look at which point is shared by both lines, or at which point both lines intersect.

There is also a mathematical way to do it using substitution and elimination, but you should master the graphing method first before moving onto those.

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A ​$220 suit is marked up by 20​%.<br> What is the selling price?
kotegsom [21]

Answer: The selling price is $176

Step-by-step explanation:

3 0
3 years ago
-8 - something = 3<br>I need help​
nydimaria [60]

Answer:

-8 - -11 = 3

Step-by-step explanation:

-8-x=3\\\\-8-x-3=3-3\\\\-11-x=0\\\\-11-x+x=0+x\\\\-11=x

Therefore, the missing number is -11

4 0
2 years ago
Solve. 90^x = 27. Explain every step.
DaniilM [7]

Answer:

The answer is ⇒ x = 0.73244

Step-by-step explanation:

∵ 90^x = 27 ⇒ insert log in both sides

∴ log(90)^{x}=log(27)

∵ 90 = 9 × 10 , 27 = 3³

∵ log(a)^<em>b</em> = <em>b</em><em> </em>log(a)

∴ log(9 × 10)^x = x log(9 × 10)

∴ xlog(9*10)=log(3^{3})

∵ log(a × b) = log(a) + log(b)⇒log(9 × 10) = log(9) + log(10)

∴ x[log(9)+log(10)]=3log(3)

∵ log(10) = 1 , 9 = 3²

∴ x[log(3)^{2}+1]=3log(3)

∴ x[2log(3)+1] = 3log(3)

∴ x = (3log3)/[2log(3)+1]

∴ x = 0.73244

3 0
3 years ago
Read 2 more answers
Which of the following numbers is located to the right of / on the number line?
Brut [27]

Answer:

the right answer is d

I hope it is helpful for you

6 0
3 years ago
87 is 58% of what number
crimeas [40]
87       58%
_          _

x           100%               = 8700/58 = 150.862069  = 150.86
3 0
3 years ago
Read 2 more answers
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