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3 years ago

Find x Solve the simultaneous equations 3x + 2y = 27 3x – y=9

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

8 0

Answer:

I think it is this because it seems as if It is 2 separate equations.

a.x=9-2y/3

b.x=3+y/3

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Step-by-step explanation:

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3 years ago

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The model represents x2 - 9x + 14

klasskru [66]

Answer:

(x-7) (x-2)

Step-by-step explanation:

(x-2) × (x-7)

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3 years ago

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A stock was priced at $12 3/8 per share. It rose in price by $3 1/4 per share. What was its new price?

lubasha [3.4K]

Option A

The new price is $ $15 \frac{5}{8}$

<h3>Solution:</h3>

Given that, a stock was priced at $ $12 \frac{3}{8}$ per share.

It rose in price by $ $3 \frac{1}{4}$ per share.

New price = old price + rise in price

Thus to find out the new price, we have to add old price and rise in price

$\text { So, new price }=\$ 12 \frac{3}{8}+\$ 3 \frac{1}{4}$

$\text { New price }=\frac{12 \times 8+3}{8}+\frac{3 \times 4+1}{4}$

On solving we get,

$\text { New price }=\frac{96+3}{8}+\frac{12+1}{4}$

$\begin{array}{l}{\text { New price }=\frac{99}{8}+\frac{13}{4}=\frac{99+26}{8}} \\\\ {\text { New price }=\frac{125}{8}}\end{array}$

On converting to mixed fraction,

$\begin{array}{l}{\text { New price }=\frac{120+5}{8}} \\\\ {\text { New price }=15 \frac{5}{8}}\end{array}$

Hence, the new price is $15 \frac{5}{8}$ , so option A is correct.

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4 years ago

Can someone plz help me with 10 a b and c

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3 years ago