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salantis [7]
3 years ago
5

What is the solution of the system of equation y = 2x − 3 5x + y = 11

Mathematics
1 answer:
miss Akunina [59]3 years ago
6 0

Answer: {y,x} = {1,2}

Step-by-step explanation:

1) y = -5x + 11

2) (-5x+11) - 2x = -3

3) - 7x = -14

4) 7x = 14

5) x = 2

6)   y = -5(2)+11 = 1

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3 years ago
Brad buys a pack of 12 bottles of energy drink for £9.25
BARSIC [14]
Step One
Find the cost of one bottle
12 bottles cost 9.25 pounds.
1 bottle costs x

12 / 1 = 9.25/x    Cross multiply
12*x  = 1 * 9.25 Divide by 12
x = 9.25 / 12
x = 0.77

Remark
0.77 pounds sterling = 77 pennies

Step Two
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Step Three
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% Profit = (profit on one bottle / Cost of 1 bottle.) * 100%
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3 years ago
What is the eighth letter in this question not Counting spaces? W is the first H is the second etc
alexandr402 [8]
The eighth letter is ‘H’
5 0
3 years ago
On the number line below, Point B lies somewhere between Points A and C. If AB = \frac{1}{3} AC. Find BC. a 16 b 0 c 8 d 24
ollegr [7]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete as the number line is not attached.

<em>However, the following will guide you through</em>

Given

AB = \frac{1}{3}AC

Required

Determine BC

First, we need to get the fraction of BC using the following

AB + BC = AC

Substitute \frac{1}{3}AC for AB

\frac{1}{3}AC + BC = AC

Make BC the subject of formula

BC = AC - \frac{1}{3}AC

Take LCM

BC =  \frac{3AC - AC}{3}

BC =  \frac{2AC}{3}

BC =  \frac{2}{3}AC

This implies that you multiply the length of AC by 2/3 to get BC

<em>Take for instance, AC = 24</em>

<em>BC will be:</em>

<em />BC = \frac{2}{3} * 24<em />

<em />BC = \frac{48}{3}<em />

<em />BC = 16<em />

<em />

<em>Or if AC = 12</em>

<em>BC will be:</em>

<em />BC = \frac{2}{3} * 12<em />

<em />BC = \frac{24}{3}<em />

<em />BC = 8<em />

<em />

<em>Or if AC = 36</em>

<em>BC will be:</em>

<em />BC = \frac{2}{3} *36<em />

<em />BC = \frac{72}{3}<em />

<em />BC = 24<em />

<em />

5 0
3 years ago
Ben bought a digital camera for $90. The tax rate is 6%. What is the total amount Ben paid for the digital camera?
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I'm pretty sure it would be 95.40. Because 90 x 6%= 5.40 add that to 90
5 0
3 years ago
Read 2 more answers
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