Socks cost $2 per pair. The cost of n pairs is $2n. John says that the cost of 6 pairs is $26 and the cost of 7 pairs is $27. Is this correct? What did John do wrong?

Answers

Answer 1

Answer: John just added the number 6 and 7 after the 2 and he thought that if 2 times n is 2n then he thought he thought that, 2 multiply by 6 would be 26 and 2 times 7 is 27 by the example of 2n. Sorry if I confused you

Related Questions

draw a model to represent the problem. 2/3 divided into 1/3 size pieces. how many 1/3 pieces will be in 2/3?
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What is 8.525 rounded to the nearest hundredth
HELP! parallel lines and transverals!

If $1200 is deposited in an account that pays 6.5% interest, what is the difference in the amount after 4 years between the amount earned if the principal is compounded annually and the amount earned calculated using simple interest?

Answers

compounded is
$A=P(r+1)^t$ for
P=principal
r=rate
t=time

simplie is
I=PRT
p=principal
r=rate
t=time

comound
P=1200
R=6.5%=0.065
T=4
$A=1200(0.065+1)^4$
$A=1200(1.065)^4$
A=1543.76
I=A-P
I=1543.76-1200
I=343.76

simple
P=1200
r=6.5%=0.065
t=4
I=1200*0.065*4
I=312

compare
compouned=343.76
simplie=312
difference=343.76-312=31.76

the difference is $31.76

the interest would be $312

What is the slope of the line (-11,-16),(-3,10)

Answers

take the y-coordinate of the second set and minus the y-coordinate of the first set. Then do the same to the X's. Then divide Y's by the X's.

The answer is: 13/4

Slope: (y2-y1)/(x2-x1)

x1=-11
x2=-3

y1=-16
y2=10

Let's subtract the "y"s first.

Remember, a double negative (2 negatives in a row... subtracting a negative) equals a positive.

10--16= 10+16=26

Now, let's subtract the "x"s.

-3--11

-3+11=8

Now we have to divide.

26/8=13/4

I believe the slope is 13/4 :).

Hope I helped!

Alaska has a land area of about 1,700,000 square kilometers Florida has a land area 1/10 the size of Alaska.what is the land area of Florida

Answers

the area of Alaska - 1 700 000 square kilometers
and we are told that the land area of Florida is 1/10th the size of Alaska. Therefore land area of Florida is equal to 1/10th of 1 700 000
that's 1 700 000 / 10 = 170 000 km²

therefore land area of Florida is 170 000 km²

The land area of Florida is $\bf170000\,{\text{k}}{{\text{m}}^{\text{2}}}$ .

Further explanation:

A fraction represents a part of a whole where the numerator shows the total parts of the whole and the denominator shows the total whole value.

Proper fractions are the fractions in which numerator is less than the denominator.

For example: $(1)/(6)$ is a proper fraction where 1(numerator) is less than 6(denominator).

An improper fractions are the fractions in which numerator is greater than the denominator.

For example: $(8)/(7)$ is an improper fraction where 8(numerator) is greater than 7(denominator).

It is given that Alaska has a land area of about $170000\,{\text{k}}{{\text{m}}^{\text{2}}}$ .

Also given that Florida has a land area $\frac{1}{{10}}$ the size of Alaska.

Florida has a land area $\frac{1}{{10}}$ the size of Alaska and the land area $L$ of Florida can be calculated by multiplying $\frac{1}{{10}}$ by 1700000 as,

$\begin{aligned}L&=\frac{1}{{10}}*1700000\n&=170000 \n \end{aligned}$

Therefore, the land area of Florida is $\bf170000\,{\text{k}}{{\text{m}}^{\text{2}}}$ .

Learn more:

1. Problem on the whole numbers are positive integersbrainly.com/question/1852063.

2. Problem on the adding and simplifying the numbers brainly.com/question/894273.

3. Problem on the general form of the equation of the circlebrainly.com/question/1506955.

Answer details:

Grade: Middle school

Subject: Mathematics

Chapter: Fractions

Keywords: Area, Alaska, Florida, Kilometers, land, fraction, multiplication, division, proper fraction, improper fraction.

Justin bought 6 ribbons for an art project. Each ribbon is 1/4 yard long. How many yards of ribbon did Justin buy?

Answers

To answer this question, Justin has bought 3/2 yards of the ribbon.
There are two ways you could answer this question. You could add it or subtract it. First, I will teach you the way of adding to get your answer. So, from this sentence, Justin has bought 6 ribbon and each was 1/4 yards long. You could add it by doing 1/4+1/4+1/4+1/4+1/4+1/4. This would give you 6/4, which would be 3/2 yards(simplified). (This could also be 1.5 yards..)
The second way was multiplying. It would look like this: 1/4 times 6. (Now, 6, could be represent as 6/1) Now you do 1 time 6 for your numerator and 1 times 4, which would be your denominator. This would also give you 6/4 or 3/2 (simplified) Hope this works!! :)

6 ribbons
1/4 yard long each
4 yards = 4 ribbons
4/4 yards
A: 6/4 yd

45/4 simplified what is the answer

Answers

When you're simplifying mixed fractions, the best thing to do is to divide the numerator (45) by the denominator (4).
45/4= 11.25= 11 and 1 remaining.
This can then be converted to a mixed number, as 11 1/4
Hope this helps :)

Diego has 4 times as many autographed baseballs as Melnie has.Diego has 24 autographed baseballs. How many autographed balls does Melanie have

Answers

Melanie has 6 because 24÷4=6

Melanie has six autographed Balls. 24/4=6

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