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PolarNik [594]
3 years ago
13

Solve the system of equations. 2x y = 7 5x y = 9

Mathematics
1 answer:
lana [24]3 years ago
7 0
Are you missing something?
2xy=7
5xy=9 
does not have a solution.
If you mean
2x+y=7
5x+y=9
please say so.
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Guilia runs an average of 15 minutes each day.She has a goal of running 10 to the power of two minutes in 7 days. Will she compl
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yes, to complete her goal she would need to run roughly 14.3 so this is more than enough

3 0
3 years ago
Find an equation of a line that has a slope 7 and passes through the point 3,11
choli [55]
You’re given that m=7 (slope is 7), so setup the slope-intercept form with that info: y = 7x + b.

Now you need to find b. Plug in (3,11) for x and y, x=3 and y=11.

11 = 7*3 + b

Notice the only variable left is b, so you’ll find b this way.

11 = 21 + b and then subtract 21 from both sides:

11 - 21 = b

-10 = b

Plug that back into the equation and you have y = 7x -10
5 0
3 years ago
The function is f(x) = -5x + 2. <br><br> How would the function change if f(x) + 3?
suter [353]

Answer:

f(3) = -13

Step-by-step explanation:

To answer this question, we plug 3 into the place of x, so the equation now looks like;

f(3) = -5(3) + 2

We simply apply PEMDAS by multiplying -5 and 3, then adding 2 to get;

f(3) = -13

Hope this helps!

-Lacy

3 0
3 years ago
I need answers for the question below to end a debate. Explain why that is the answer too.
IRINA_888 [86]
PEMDAS. Parenthesis comes first. 3+2 = 5 which is then multiplied to 6/2 which is 3 so 3 x 5 is 15. 
7 0
3 years ago
Read 2 more answers
-6-4(3x2)+5^2<br> show step by step pls!
storchak [24]
PEMDAS
-6-4(3x2)+5^2

-6-4(6)+5^2

distribute
-6-24+5^2

-6-24+25= -5
4 0
2 years ago
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