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frosja888 [35]
4 years ago
11

Eileen’s cookies charges $0.40 per cookie with a delivery fee of $8. Insomnia cookies charges $1.50 per cookie with a $2.50 deli

very fee. How many cookies must you buy for the costs to be equal?
help plssss
Mathematics
1 answer:
Nuetrik [128]4 years ago
8 0

Answer: 5 cookies

Step-by-step explanation:  8 + .4c = 2.5 + 1.5c

8 + 0.4c = 2.5 + 1.5c

8 · 10 + 0.4c · 10 = 2.5 · 10 + 1.5c · 10

80 + 4c = 25 + 15c

4c = 15c - 55

4c - 15c = 15c - 55 - 15c

-11c = -55

c = 5

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Please help, solve for x
madreJ [45]

Answer: x=12

First, you do 8 squared = 4(4+x)

Then, you distribute and becomes a two-step equation.

64=16+4x.

So x=12.

Hope it helps :) Brainliest?

7 0
3 years ago
I need help pls answer All 4 of the questions
Alja [10]

Answer:

Step-by-step explanation:

1: 7/6

2: 3/2

3: 0.000288

4: six tenths

4 0
3 years ago
Read 2 more answers
A sandwich decrease from $8 to $6 what is the percentage decrease
kati45 [8]

Answer:

25%

Step-by-step explanation:

First find the difference in price= $8-$6 = $2

Now, find percentage decrease in the price of sandwich.

Percentage decrease= (difference in price/ original price) *100

                                   = \frac{2}{8} *100

                                   =\frac{200}{8}

Percentage decrease=25%

                                                   

4 0
3 years ago
A function which is used to represent a problem, and which can be used to solve the problem, is called a ____.
algol [13]

Answer:

i think it would be a model.

Step-by-step explanation:

5 0
3 years ago
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If you rearrange the equation so w is the independent variable, then what is u?<br><br> -2u+6w=9
Serjik [45]

Answer:

u  = - ( 9-6w)/2

Step-by-step explanation:

to  evaluate for u in the expression -2u+6w=9 is simply to look for a way such that we would express u in terms of w and other variables.

solution

-2u+6w=9

-2u = 9 - 6w

divide both sides by the coefficient of u which is -2

-2u/u = 9 - 6w/-2

u  = - ( 9-6w)/2

therefore the value of u when rearranged in the equation -2u+6w=9 is evaluated to be equals to

u  = - ( 9-6w)/2

7 0
3 years ago
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