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Anettt [7]
3 years ago
8

PLEASE ASNWER ILL GIVE YOUI BRAINLIEST

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0
300 and 600 is your answer :)
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I need help with this question
pav-90 [236]

Answer:

Pearson Math Book nice.

Step-by-step explanation:

I think the 11 ounces because thats the accurate one and determine if its regular or rush. Hope that helps.

8 0
2 years ago
A customer calculated the cost of a new jacket, c, including a 7% sales
netineya [11]
We can put it into one step by multiplying the cost by 1.07 which basically takes into account the old cost of the jacket and the tax

the expression is
original amount * decimal multiplier (1.07) = new amount
3 0
3 years ago
A hotel rents 210 rooms at a rate of $ 60 per day. For each $ 2 increase in the rate, three fewer rooms are rented. Find the roo
lidiya [134]

Answer:

r=$14,400

The hotel should charge $120

Step-by-step explanation:

Revenue (r)= p * n

where,

p = price per item

n = number of items sold

A change in price leads to a change in number sold

A variable to measure the change in p and n needs to be introduced

Let the variable=x

Such that

p + x means a one dollar price increase

p - x means a one dollar price decrease

n + x means a one item number-sold increase

n - x means a one item number-sold decrease

for each $2 price increase (p + 2x) there are 3 fewer rooms are rented (n-3x)

know that at $60 per room, the hotel rents 210 rooms

r = (60 + 2x) * (210 - 3x)

=12,600-180x+420x-6x^2

=12,600+240x-6x^2

r=2100+40x-x^2

= -x^2 +40x+2100=0

Solve the quadratic equation

x= -b +or- √b^2-4ac / 2a

a= -1

b=40

c=2100

x= -b +or- √b^2-4ac / 2a

= -40 +or- √(40)^2 - (4)(-1)(2100) / (2)(-1)

= -40 +or- √1600-(-8400) / -2

= -40 +or- √ 1600+8400 / -2

= -40 +or- √10,000 / -2

= -40 +or- 100 / -2

x= -40+100/-2 OR -40-100/-2

=60/-2 OR -140/-2

= -30 OR 70

x=70

The quadratic equation has a maximum at x=70

p+2x

=60+2(30)

=60+60

=$120

r= (60 + 2x) * (210 - 3x)

={60+2(30)}*{(210-3(30)}

r=(60+60)*(210-90)

=120*120

=$14,400

7 0
3 years ago
Using linear combination method what is the solution to the system of linear equations 7X -2Y = -20 and 9X + 4Y = -6
Yakvenalex [24]

Answer:

(x,y ) = ( - 2,3)

Step-by-step explanation:

given the 2 equations

7x - 2y = - 20 (1)

9x + 4y = -6 (2)

8 0
3 years ago
Write a linear factorization of the function.<br> f(x)= x^3 + 2x^2 + 2x -5
egoroff_w [7]
The answer is f(x) = (x-1)(x²+3x+5)
4 0
3 years ago
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