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Ilia_Sergeevich [38]
4 years ago
9

Someone please help me with math linear equations 3x + 2y = 12

Mathematics
1 answer:
vodka [1.7K]4 years ago
6 0
3x + 2y = 12
subtract 3x from both sides
2y = -3x + 12
divide all terms by 2 so that you can have only the y on the left side
y = -3/2x + 6
And that is your answer!

Hope this helped!! :)

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musickatia [10]

Answer:

B. f(-5) = -70

Step-by-step explanation:

f(-5)= 10(-5) - 20

f(-5) = -50 - 20

f(-5) = -70

3 0
3 years ago
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Kamran wins the big game lottery. He invests part of his winnings in treasury bonds promising a 5% annual return and he deposits
Ostrovityanka [42]

Answer:

Amount won by Kamran = $21,450

Step-by-step explanation:

This can be calculated using the following 3 steps:

Step 1: Calculation of the amount invested in treasury bonds

Since the limit to the duration of investment is not stated, the amount invested can be calculated using the formula for calculating the present value of a perpetuity as follows:

PV = P / r …………………………………. (1)

Where;

PV = Present value or the amount invested treasury bonds = ?

P = Annual return on his investments = $661.25

r = Annual rate of return = 5%, or 0.05

Substitute the values into equation (1), we have:

PV = $661.25 / 0.05 = $13,225

Step 2: Calculation of the amount deposited in the money market account

From Step 1 above, we have:

Amount invested treasury bonds = $13,225

Since he invests $5000 more in treasury bonds than he deposits in the money market account, the amount deposited in the money market account can be calculated as follows:

Amount deposited in the money market account = Amount invested treasury bonds - $5,000 = $13,225 - $5,000 = $8,225

Step 3: Calculation of the amount won by Kamran

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7 0
3 years ago
What is the unknown fraction 2/10 +__=67/100
sattari [20]
<h2>47/100</h2><h3></h3><h3>0.2 + x = 0.67</h3><h3>subtract 0.2 from both sides</h3><h3>x = 0.47</h3>
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andrew-mc [135]

Answer:

This question is vague

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3 years ago
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Elza [17]

Answer:

The parabolic equation does not intersect the linear equation.

Explanation:

Given equation's:

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To solve , use substitution method by inserting 2nd equation into 1st

\sf y = x^2 - 5x + 9

when substituted y = -2x

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collect terms

\sf  x^2 - 5x+ 2x + 9=0

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\sf -27

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7 0
2 years ago
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