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3 years ago

Consider the following equation. x · y = z, where x < 0 and y > 0

Mathematics

2 answers:

aliya0001 [1]3 years ago

5 0

Answer:

Step-by-step

im better bby

Anna35 [415]3 years ago

4 0

Answer:

Step-by-step explanation:

Using -5 (as x because it’s less than 0) times 4 (as y because it’s more than 0) as examples, you’d get -20 (as z). If you do a solution set, you’d see a pattern of only negative numbers. Hope this helped, and tell me if I’m wrong, no hurt feelings

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Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

3 years ago

12 Times 12 = 144 right?

REY [17]

Answer:

yes it is u are correct

Step-by-step explanation: plz mark brainliest

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3 years ago

Help me pls ASAP!

Cloud [144]

It wold be letter D.

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3 years ago

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Rama09 [41]

Answer:

the third one

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is 39 divide by 2

marta [7]

19.5

Step-by-step explanation:

u just divide 39 by 2 and get 19.5

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3 years ago