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umka21 [38]
3 years ago
8

2x + 9y = -7 6x - 3y = 9

Mathematics
1 answer:
mars1129 [50]3 years ago
3 0

Answer:

Add the equations together

Step-by-step explanation:

The reason why I know this is because they are all like terms so that would be the smartest choice to do first.

If this answer helped you then please mark it as brainliest so I can get to the next rank

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3 1/3 feet are cut off a board that is 12 1/4 feet long.How long is the remaining
laiz [17]

Answer:

8\frac{11}{12}

Step-by-step explanation:

In order to answer this question you will have to subtract 3 1/3 from 12 1/4 by turning the mixed fractions into improper fractions, finding the common denominator, (CD) then subtracting the numerators.

12 \frac{1}{4} - 3\frac{1}{3}

Turn the mixed fractions into improper fractions:

12\frac{1}{4} = \frac{49}{4}

3\frac{1}{3} = \frac{10}{3}

\frac{49}{4} -\frac{10}{3}

Find the common denominator:

4\times3=12

3\times4=12

CD=12

49 \times 3 =147

=\frac{147}{12}

10\times4=40

=\frac{40}{4}

Now subtract the numerators:

147-40=107

=\frac{107}{12}

Turn the improper fraction into a mixed fraction:

\frac{107}{12} =8\frac{11}{12}

=8\frac{11}{12}

Hope this helps.

5 0
3 years ago
Read 2 more answers
Juan compró un led TV en cuotas que costó $ 76.000=. Si le falta pagar 3 cuotas y ya pagó $ 47.000, ¿Cuál es el valor de cada cu
Murrr4er [49]

Respuesta:

$ 9666. 67

Explicación paso a paso:

Costo de TV = $ 76,000

Número de cuotas = 3

Monto ya pagado = $ 47000

Amontof cada cuota fija = Cantidad que queda por pagar / 3

Cantidad que queda por pagar = Costo de TV - Cantidad ya pagada

Cantidad que queda por pagar = $ (76000 - 47000) = $ 29000

Monto de cada cuota fija = $ 29000/3 = $ 9666. 67

7 0
3 years ago
Given that the confetti is going to be dropped from 25 feet up and land on a person who is about 6 feet tall, use the correct fo
elena-14-01-66 [18.8K]

I believe the question is saying - Confetti is dropped at x height and a person stands at y high, whats the difference between x and y. If the confetti falls at z speed, how long does the person have to wait until the confetti has fallen, to unsure he does not get hit.

Not entirly sure and can't work it out 100% as i would need all tables, charts and questions.


6 0
3 years ago
Read 2 more answers
Write the equation of a slope intercept form with a slope of 9 and a y-intercept of -3
Usimov [2.4K]

Answer:

y = 9x-3

Step-by-step explanation:

since the slope intercept form is in the y=mx+b form, you just have to plug in the slope for m and the y-intercept for b.

3 0
4 years ago
HELP! can someone help me with 2,3,and 4?
sleet_krkn [62]

Linear functions are those whose graph is a straight line!

4 0
3 years ago
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