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Varvara68 [4.7K]
4 years ago
6

If 7 key chains cost $55.65, then 12 key chains cost $

Mathematics
1 answer:
Nimfa-mama [501]4 years ago
3 0
Divide $55.65 by 7 to get the cost of 1 key chain ($7.95). Then multiply the cost of 1 by 12 and get $95.40
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Solve for n.<br> F-7 (n-46)
RSB [31]

Answer:

F/7 +46=n

Step-by-step explanation:

(WARNING IDK IF THIS IS THE CORRECT WAY TO SOLVE) Start with the equation itself F-7(n-46). You’re first step is to simplify the equation by distributing -7 to (n-46). So multiple n by -7 and multiply -46 by -7. After that you’re equation should look like f-7n+322. This is when you can start trying to solve for n. You want n on the other side of the equal sign so you’re going to add -7n to the one side of the equal sign. F+322=7n. Now to get n by itself divide 7 to both sides of the equation. This will give you F/7+6=n.

3 0
3 years ago
Write the equation of the line that passes through (3, −2) and is perpendicular to y equals 3 fourths times x plus 6 period y eq
Alex

The equation of the line that passes through (3, −2) and is perpendicular to y = (3/4)x + 6 will be y = -(4/3)x + 2. Then the correct option is B.

<h3>What is the equation of a perpendicular line?</h3>

Let the equation of the line be ax + by + c = 0. Then the equation of the perpendicular line that is perpendicular to the line ax + by + c = 0 is given as bx - ay + d = 0. Or if the slope of the line is m, then the slope of the perpendicular line will be negative 1/m.

The equation of the line is given below.

y = (3/4)x + 1/3

The slope of the line is 3/4. Then the slope of the perpendicular line will be

Slope = - 1 / (3/4)

Slope = - 4 / 3

Then the equation of the line will be

y = -(4/3)x + D

The line is passing through (3, -2), then the value of D will be

-2 = (-4/3) × 3 + D

-2 = - 4 + D

D = 2

The equation of the line that passes through (3, −2) and is perpendicular to y = (3/4)x + 6 will be y = -(4/3)x + 2. Then the correct option is B.

More about the equation of a perpendicular line link is given below.

brainly.com/question/14200719

#SPJ2

7 0
2 years ago
Read 2 more answers
you have 20 dollars and you would like to purchase a sweater that is on sale for 35 percent off the original price of the sweate
PolarNik [594]

Answer: 29.50•0.35=10.325

29.50-10.325=19.175

Price of sweater $19.18

Yes you can buy it on sale

Step-by-step explanation: To take off the 35% multiple the decimal of 35 by the price of the sweater. Then take that number off the original price of the sweater. Round to the nearest two decimal place. Since it is under $20 she can afford it

6 0
3 years ago
Help plsss the question says is the relation shown in the table a function use the graph to identify your answer
nirvana33 [79]
If yu don’t know always pick C trust
5 0
3 years ago
Determine the value Y, if X is -2<br> Y=X-12
8090 [49]
10 because -2 minus 12 is 10
3 0
2 years ago
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