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irina [24]
3 years ago
5

Each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80!

Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

$1.15

Step-by-step explanation:

Let the current price of the cookie be C whilst the normal price is c.

From the information we can deduce two equations.

Firstly, since they are $0.75 less than usual:

C+$0.75=c

Secondly, since seven cost $2.80

7C=$2.80

We can simplify this equation by dividng by 7

C=$0.40

Now combine the equations via substitution this value above into the first equation

$0.40 + $0.75= c

c= $1.15

Therefore the normal price is $1.15

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irina [24]

Answer:

yes

Step-by-step explanation:

4 x 15 - 20 = 40

60 - 20 = 40

5 0
2 years ago
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Choose the values of the range given the function below. {(-1, -3), (5,7). (8. -4), (-7, 3), (-5, 11)}​
lyudmila [28]

Answer:

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Step-by-step explanation:

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2 years ago
1<br> 6 points<br> Solve for x:<br> 3x - 2 = x + 8<br> (Engin+bon.
gizmo_the_mogwai [7]

Answer:

x = 5

Step-by-step explanation:

3x - 2 = x + 8

Subtract x from each side

3x-x - 2 = x-x + 8

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Add 2 to each side

2x-2+2 = 8+2

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Divide each side by 2

2x/2 =10/2

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8 0
3 years ago
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ok so this is drag and drop so tell me which answer goes in each box the for the box o the left count that as the first box ty n
Ainat [17]

Answer:

\Huge\boxed{z

Step-by-step explanation:

Hello There!

Once again we need to isolate the variable using inverse operations

to get rid of the -8.2 we add 8.2 to each side

-8.2+8.2 cancels out

-9.7+8.2=-1.5

now we have

-1.2z>-1.5

now we wan to get rid of the -1.2

to do so we want to divide each side by -1.2

\frac{-1.2z}{-1.2} =z\\\\\frac{-1.5}{-1.2} =1.25

Remember we have to flip the inequality sign because we're dividing by a negative number

we're left with

z<1.25

7 0
3 years ago
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3y - 2x = 9 slope intercept form
Alchen [17]

Answer:

y=\frac{2}{3}x+3

Step-by-step explanation:

3y-2x=9\\\\3y=2x+9\\\\y=\frac{2}{3}x+3

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2 years ago
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