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3 years ago

??????!!!!! Please help

Mathematics

1 answer:

nadya68 [22]3 years ago

4 0

(x^2-5x-6)= (x+1)(x-6)

one of them has to be zero...

x=-1, x=6.

Hope this helps!

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Susan needs to buy apples and oranges to make fruit salad. She needs 15 fruits in all. Apples cost $3 per piece, and oranges cos

jonny [76]

Answer:

m + 30 ; $36

Step-by-step explanation:

Given that:

Total fruits needed = 15

Fruits needed :

Apple (m) ; cost = $3 per piece

Oranges (o) ; cost = $2 per piece

Amount spent on fruits :

[(cost of apple * number of apples) + (cost of orange *(total fruits - number of apples)]

3m + 2(15 - m)

3m + 30 - 2m

3m - 2m + 30

m + 30

Amount spent if 6 apples is purchased :

m = 6

m + 30

6 + 30 = $36

8 0

3 years ago

PLZZ HELP ME 20 POINTS AND BRAINLIEST!

omeli [17]

Answer:

The price of price of the stock after it has been owned for 12 weeks is $92.55

Step-by-step explanation:

Given: The price of a particular stock is represented by the linear equation

y = -0.91x + 103.47

where x represents the number of weeks the stock has been owned and y represents the price of the stock, in dollars.

We have to find the price of price of the stock after it has been owned for 12 weeks.

Since , x represents the number of weeks the stock has been owned.

Thus, by substitute, x = 12

We get the value of y , the price of stocks.

Thus, y(x) = -0.91x + 103.47

⇒ y(12) = -0.91(12) + 103.47

⇒ y(12) = -10.92 + 103.47

Solving , we get,

⇒ y(12) = 92.55

Thus, the price of price of the stock after it has been owned for 12 weeks is $92.55.

8 0

3 years ago

Read 2 more answers

A rock is dropped from a height of 88.6 m and falls toward Earth in a straight line. In t seconds the rock falls 4.9t2 meters.

Allushta [10]

Answer:

The average speed is 9.8 meter per second in the first two seconds

Step-by-step explanation:

Complete Question

What is the average velocity of the rock in first 2 secs?

Solution

Distance travelled in first two seconds

$4.9 t^2 = 4.9*2*2 = 19.6$ m

Average speed = $S2-S1/2 = 19.6-0/2 = 9.8$ meter per second

8 0

3 years ago

An on-demand printing company has monthly overhead costs of $1,900 in rent, $450 in electricity, $80 for phone service, and $230

kotegsom [21]

Answer:

$40

It means that when an infinite number of pages are printed in a month then the fixed cost will be negligible.

Step-by-step explanation:

Given that:

Monthly overhead costs in rent = $1900

Costs in electricity = $450

Costs for phone service = $80

Costs for advertising and marketing = $230

Printing cost per thousand pages = $40

If number of pages printed are $x$ thousand then cost of printing for $x$ thousand pages = $40 $x$

Average cost to print $x$ thousand pages can be given as:

(Total fixed cost + Total cost of printing $x$ thousand pages) divided by $x$

$\dfrac{2660+40x}{x}$

Now, it is given that an infinite number of pages are printed in a month, and we have to find the value that average cost would approach to.

$\lim_{x \to \infty} (\dfrac{2660+40x}{x})$

Let us solve the above limits.

$\Rightarrow \lim_{x \to \infty} (\dfrac{2660}x+\dfrac{40x}{x})\\\Rightarrow \lim_{x \to \infty} (\dfrac{2660}x)+40\\\Rightarrow 40+\lim_{x \to \infty} (\dfrac{2660}x)$

When

$x\rightarrow \infty\Rightarrow \frac{2660}{x} \rightarrow 0$

Putting the value in the limits, we get:

Average cost per thousand pages month would approach to $\rightarrow \$40$

It means that when an infinite number of pages are printed in a month then the fixed cost will be negligible.

3 0

3 years ago

What 4 consecutive integers equal 36

Rainbow [258]

Only got three : 10, 12, 14. | Try 11 also. Don't know about that one though. |

4 0

3 years ago