I need help

Mathematics

2 answers:

NeTakaya3 years ago

7 0

The answer is 15 because 15>11.3

Charra [1.4K]3 years ago

5 0

OK so if you have, oh I don't know, 11.3 loaves of bread, would you have more if you had 15, owed someone 14, had 4, or had 9?
The correct answer is B because it is the only one that is larger than 11.3

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Can someone help me with this? I will mark you as brainliest

Tresset [83]

Answer:

1372$

Step-by-step explanation:

the price =15600+20/100*15600=15600*120/100=18720

18720-5000=13720 $

13720:10=1372 $

8 0

2 years ago

Mario has a business selling muffins. Let x be the price of a muffin. Then, the profit P for Mario’s business is given by p(x)=-

Rufina [12.5K]

To make a positive profit p(x)>0 we need to make:
$-100 x^{2} +350x-150 \ \textgreater \ 0$

Now we solve this for x:
$-2 x^{2} +7x-3 \ \textgreater \ 0$

We have:
a = -2
b = 7
c = -3

We will use formula for quadratic equation:
$x_{1} = \frac{-b+ \sqrt{ b^{2}-4ac } }{2a} \\ \\ x_{2} = \frac{-b- \sqrt{ b^{2}-4ac } }{2a} \\ \\ x_{1} = \frac{-7+ \sqrt{ 49-24 } }{-4} = \frac{-7+5 }{-4} = \frac{-2 }{-4} = \frac{1}{2} \\ \\ x_{2} = \frac{-7- \sqrt{ 49-24 } }{-4} = \frac{-7-5 }{-4} = \frac{-12 }{-4} = 3$

We got two solutions. One is fraction other is whole number. We will not consider fraction because the amount of muffins sold must be whole number. So our solution is:
x>3

5 0

2 years ago

Read 2 more answers

Simplify the expression 1.8-0.2x equallys -1.6. Step by step plzzz I will give you 100 points

posledela

1.8 - 0.2x = -1.6 Subtract 1.8 on both sides

1.8 - 1.8 - 0.2x = -1.6 - 1.8

-0.2x = -3.4 Divide -0.2 on both sides

$\frac{-0.2x}{-0.2}=\frac{-3.4}{-0.2}$