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Anna11 [10]
3 years ago
7

If y is 6 when x is 3 and y varies directly with x, find y when x is 8. 04 16 11

Mathematics
1 answer:
Zarrin [17]3 years ago
4 0

Answer

y = kx

from the info given k=2

hence when x=8 y=16:

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A stationery store sold 320 of two different types of pens for $190.55. One type of pen costs 25 cents and the other costs 80 ce
Tems11 [23]

Answer:

all work is shown and pictured

3 0
3 years ago
Is 0.35 l greater than 300 ml
muminat

Yes 0.35 L is greater than 300 ml

4 0
3 years ago
A sport store pays its wholesaler $40 for a baseball bat, and then sells it to a customer for $76. What is the markup rate?​
Korvikt [17]

Answer:

Markup 90%

Step-by-step explanation:

If $40 is  100% of the price

  then

$76 is  ..........x

Cross multiplication

40(x)  =  76(100)

40x  = 7600

Divide by 100

x = 190

190%  = 100% + 90%

That  means that the price  is the whole price(100%) plus 90%

so the markup is 90%

  ANOTHER WAY:

The difference in prices is $76-$40=$36. So, we need to find what percentage of 40 is 36.

We do this by dividing: 36/40=0.9, which is 90%. So, the markup is 90%.

3 0
3 years ago
Solve 7x-5x-3=x+4 please help
dybincka [34]
7x-5x-3=x+4
2x-x=4+3
x=7
5 0
4 years ago
Read 2 more answers
What are the exact solutions of x2 - 3x - 5 = 0? x = the quantity of negative 3 plus or minus the square root of 29 all over 2 x
Vinil7 [7]
x^{2}-3x-5=0 \\  \\ \Delta=(-3)^{2}-4*1*(-5)=9+20=29 \\  \\  \sqrt{\Delta} = \sqrt{29}  \\  \\ x_{1}= \frac{3- \sqrt{29} }{2}  \\  \\ x_{2}= \frac{3+ \sqrt{29} }{2}

<em>\\\ Ben</em>
3 0
3 years ago
Read 2 more answers
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