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jasenka [17]
3 years ago
8

Which is the approximate solution to the system y = 0.5x + 3.5 and y = −x + shown on the graph?

Mathematics
1 answer:
Archy [21]3 years ago
8 0
I'm assuming there is a graph with both functions plotted. The solution would be the point at which these two functions intersect. That coordinates of x and y for that point will yield the solutions for x and y that solve the system of equations.
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. A textbook company states that the average time a student needs to take a quiz from its book is 30 minutes with a standard dev
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The conclusion that is valid based on the result of the test would be : A. Her students on average, do not take 30 minutes on the quiz, contrary to what the textbook company stated

we can see in the statement that the average student only need about 25 minutes to take the quiz

hope this helps

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Over which interval is the function increasing
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Step-by-step explanation:

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2 years ago
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What is 15/16 minus 12/16
Ksju [112]
15/16 - 12/16 = 3/16
6 0
3 years ago
What are the steps to find the solution to an inequality?
kifflom [539]

Answer:

Very similar to solving an equation.

Step-by-step explanation:

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4 0
3 years ago
Resuelve el siguiente sistemas de ecuaciones por el método
marishachu [46]

Answer:

x=10 and y=12

Step-by-step explanation:

To solve this quadratic equation we will use two method

1. Elimination method

2. substitution method

first of we use elimination method

we either eliminate x or y

we will be eliminating y

83x-20y=590..........(eq1)

60x+18y=816...........(eq2)

y will be eliminated by multiplying

(eq1) by 9

(eq2) by 10

which will give

747x-180y=5310.........(eq3)

600x-180y=8160.........(eq4)

see that y has the same value that is (-180y and +180y)

so to eliminate y completely you have to add eq1 and eq2 because if you don't add them together you wont eliminate y

747x-180y=5310

+

600x+180y=8160

=

1347x+0=13470

1347x=13470

x=13470/1347

x=10

Now to find y we use substitution method ie put x=10 in any of the equation above(eq1,eq2,eq3, eq4) you will get the same answer

eq1

83x-20y=590..... where (x=10)

83(10)-20y =590

830-20y=590

like terms

-20y=590-830

-20y= -240

divide both sides with -20

y= -240/-20

y=12

OR

eq2

60x+18y=816..... where x=10

60(10)+18y=816

600+18y=816

like term

18y=816-600

18y=216

y=216/18

y= 12

or eq3 or eq4 you will still get the same answer......

7 0
3 years ago
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