Solve for x. 5+x+(−2)=−8

TiliK225 [7]

The answer is 4(2x+1)(4x^2-2x+1)

8 0

3 years ago

The amount of profit, p, you earn by selling knives,k, can be determined by:p=200k-500. A) determine the constraints on profit a

Marizza181 [45]

The only restraints on profit result from the restriction on the domain which in turn place a restriction on profit.

0≤k. Knives sold cannot be negative.

So the range of profit or p is:

p=[-500, +oo)

Profit increases as the number of knives sold increases. $200 more profit is gained by each sale of a knife.

4000=200k-500

4500=200k

k=22.5

Since k is for knives sold, it must be an integer value, so a $4000 profit is not possible. At 22, p=3900 and at 23, p=4100

3 0

4 years ago

Edurado started a business selling sporting goods.He spent $ 7500 to obtain hos merchandise , and it cost him $300 per week for

Alik [6]

Answer:

C) It will take 14 weeks for Edurado to make a profit.

Step-by-step explanation:

The money spent on obtaining the merchandise = $ 7500

The general expense per week = $300

Let us assume Eduardo has to work for N weeks to break Even.

So, the general expense in N weeks = N x( Expense per week)

= N x ( $300) = 300 N

So, the total expense in N weeks = Money spent on merchandise + general expense

or, the TOTAL EXPENSE = $ 7500 + 300 N .... (1)

Now, the earning per week = $850

So, the total earning in N weeks = N x ( Earning in 1 week) = N x ( $850)

or, the TOTAL EARNING = 850 N .... (2)

Now, for N weeks ,

TOTAL EXPENSE = TOTAL EARNING

⇒ $7500 + 300 N = 850 N

or, 7500 = 850 N - 300 N = 550 N

⇒ N = 7500/550 = 13.63

So, number of weeks should at least be 13.63

Among the given options, N = 14 weeks is the most feasible answer.

Hence, it will take 14 weeks for Edurado to make a profit.

5 0

3 years ago

A radiator contains 15 quarts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure anti

Annette [7]

%Antifreeze=VAntifreezeVFluid VFluid=VAntifreeze%Antifreeze VAntifreeze=Vfluid∗%Antifreeze I want to find the amount of antifreeze in a 15 quart solution with 30% antifreeze VAntifreeze=15∗0.30 =18/4 quarts of antifreeze Similarly, I want to find the amount of antifreeze in a 15 quart solution with 35% antifreeze first. VAntifreeze=15∗0.35 = 21/4 quarts of antifreeze

the difference between 21/4 and 18/4 is 3/4 quarts, which is the amount of pure antifreeze I've added in.

SO the V_fluid I replaced with 3/4 quarts of antifreeze is (3/4)/ 0.35

5 0

4 years ago

I need help with this problem

vitfil [10]

Answer:

all of the triangles are right triangles

6 0

3 years ago