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kap26 [50]
3 years ago
11

HELP!! i also need help with this as well

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

uuuh 3

Step-by-step explanation:

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The buying price is $10 and the markup is 80% of the buying price what is the markup?
KATRIN_1 [288]
$10 * .8 = $8 that's it
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2 years ago
CAN U GUYS PELASE ANSWER THE SIMULTANEOUS EQUATION QUESTION QUESTIONS ASAP. THIS IS EXTREMELY URGENT. Solve it by using the subs
prisoha [69]

Answer:

a ) y = 1 and x = -1

d) y = 5 and x = -1/2

Step-by-step explanation:

<h2><u>Substitution method</u></h2><h2><u>Question a</u></h2>

y = x+ 2

y = 2x + 3

<em>we can make the first formula in terms of x , so we can place in into the second formula</em>

y = x + 2

x = y -  2

now put y - 2 where x is in the second equation

y = 2x + 3

y = 2(y - 2) + 3

y = 2y - 4 +3

now solve

4 - 3 = 2y -y

y = 1

since y = 1 we can find what x is by putting into the first formula

y = x +2

x = y - 2

x = (1) -2

x = -1

<h3><u>hence y = 1 and x = -1 </u></h3><h3><u /></h3><h2><u>Question d</u></h2>

y = 2x + 6

y = 4 - 2x

<em>we can make the first formula in terms of x , so we can place in into the second formula</em>

y = 2x + 6

y - 6 = 2x

x = (y-6)/ 2

now place (y-6)/2 where x is in the second formula

y = 4 -2x

y = 4 - 2 (\frac{y - 6}{2})

now solve

the multiplication by 2 and division by 2 are cancelled out

hence making the simplified equation as:

y = 4 - y + 6

2y = 4 + 6

2y = 10

y = 5

now place this into the first equation

y = 2x + 6

y - 6 = 2x

x = (y-6)/ 2

x = (5-6)/2

x = -1/2

<h3><u>hence y = 5 and x = -1/2</u></h3>

6 0
3 years ago
X+2y=4<br> 2x-2y=5 <br> what is the answer
Tom [10]

x + 2y = 4

2x - 2y = 5

Adding both the equations:

x + 2y + 2x - 2y = 9

3x = 9

x = 3

y = 4-x /2 = 1/2

4 0
3 years ago
16 out of 24 in simplest form
Aleks [24]
Do you mean 16/24 in simplest form? In that case it would be

16/24 = 8/12 = 4/6 = 2/3
4 0
3 years ago
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A car dealership has 240 cars in the parking lot and 17.5 percent of them are red. Of the other 6 colors in the lot, each color
Gekata [30.6K]
33 cars
240÷100×17.5=42
240-42=198
198÷6=33
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3 years ago
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