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andreyandreev [35.5K]
4 years ago
8

Find the coordinates

Mathematics
1 answer:
Irina-Kira [14]4 years ago
4 0

Answer:

The answer to your question is   -3, 7

Step-by-step explanation:

Data

                    x  +  y  = 4   ------------ Equation l

                  7x + 9y  = 42 -----------  Equation ll

Process

1.- Solve the system by elimination

- Multiply equation l by -7

                  -7x - 7y = - 28

                    7x+9y =   42

2.- Simplify

                   0  + 2y = 14

3.- Solve for y

                            y = 14/2

                           y = 7

4.- Substitute y in equation l to find x

                      x  + 7 = 4

Solve for x

                      x = 4 - 7

                      x = -3

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I WiLL GiVe BrAnYeSt
Phoenix [80]

Answer:

the answer is 529

Step-by-step explanation:

divide 7,406 and 14 and the answer is 529

7 0
3 years ago
Jack did an experiment where he pulled a marble from a bag
Vladimir [108]

Answer:

84% or 42/50

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the numerator of the fraction equivalent to 3\5 that has a denominator of 30
aliya0001 [1]
Well, the numerator is the number on top, so in the fraction 3/5, 3 is the numerator. To find the equation with a denominator of 30 that is equivalent, find what the difference is. 30/5 = 6. So now, multiply the numerator by 6. 6 * 3 = 18. The new fraction is 18/30. The numerator is 18. Hope this helps!
3 0
4 years ago
Which division expression is equivalent to
In-s [12.5K]

The correct answer would be A.  13/3 Divided by -5/6


The total answer would be negative 5 1/5

because you do 4x3+1=13 over the denominator that is already there so 13/3 then you do KCF a.k.a keep change and flip you keep 13/3 change the division sign into multiplication sign then you flip the -5/6 to -6/5 then multiply straight across and reduce this is the way my teacher taught me how to remember - to positive kind of things:

when a negative thing or bad thing happens to a good person is that good or bad in this case thats bad because if you think about it if a bad thing happend to someone you care about that would be bad. then that same idea goes for each pattern another example could be a good thing (+) happens to a good person (+) it is good (+)

(+) (+)=+

(-) (-)=+

(+) (-)= -

(-) (+)= -

Hope this helps. Have a good day! :)

5 0
3 years ago
21....................
Mumz [18]

Answer:

The answer is (b) ⇒\frac{d^{5} }{2\sqrt{c} }

Step-by-step explanation:

∵ \frac{\sqrt{c^{2}d^{6}}}{\sqrt{4c^{3}d^{-4}}}

∵ √x² = x ⇒ that means to cancel the square root divide

  the power by 2

∴ \sqrt{c^{2}d^{6}}=cd^{3}

∵ √4 = 2 ⇒ √2×2 = √2² = 2

∵ √c³  = c^{\frac{3}{2}}

∴ \sqrt{4c^{3}d^{-4}}=2c^{\frac{3}{2}}d^{-2}

∴ \frac{cd^{3}}{2c^{\frac{3}{2}}d^{-2}}

∵ In the same base with multiplication we add the power,

  in same base with division we subtract the power

∴ \frac{1}{2}c^{1-\frac{3}{2}}d^{3-(-2)}=\frac{1}{2}c^{\frac{-1}{2}}d^{5}=

  \frac{d^{5}}{2c^{\frac{1}{2}}}=\frac{d^{5}}{2\sqrt{c}} ⇒  c^{\frac{1}{2}}=\sqrt{c}

∴ The answer is (b) ⇒ \frac{d^{5}}{2\sqrt{c}}

8 0
4 years ago
Read 2 more answers
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