All categories

2 years ago

One day, he bought 10 pairs of socks for $2.50 each and 3 pairs of shoes for dollars each. He

Mathematics

1 answer:

IrinaVladis [17]2 years ago

5 0

Answer:

2.50(10) + 3x = 135.97, x = 38.66

Step-by-step explanation:

This should be pretty simple.

Basically, we know that he bought 10 pairs for 2.50 so that's $25 right there.

Our total is 135.97 though-

so here, we take our total from the right side of the equation, and subtract 25 from that.

135.97 - 25 = 115.97

Since he bought three pairs, divide it by 3.

115.97 / 3 = 38.66

One pair of shoes costs $38.66 - hope this helps!

You might be interested in

Find the value of 373 using the identity (x − y)3 = x3 − 3x2y + 3xy2 − y3. Show all work.

Paladinen [302]

Answer:

$37^3 = 50653$

Step-by-step explanation:

Given

$(x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3$

Required

Find $37^3$

Express 37 as 40 - 3

So, we have:

$37^3 = (40 - 3)^3$

Compare to $(x -y)^3$

$x = 40\ and\ y = 3$

Substitute 40 for x and 3 for y in $(x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3$

$(40 - 3)^3 = 40^3 - 3*40^2*3 + 3*40*3^2 - 3^3$

Evaluate all exponents

$(40 - 3)^3 = 64000 - 3*1600*3 + 3*40*9 - 27$

Evaluate all products

$(40 - 3)^3 = 64000 - 14400 + 1080 - 27$

$(40 - 3)^3 = 50653$

Hence:

$37^3 = 50653$

7 0

2 years ago

STOP AND HELP PLZzzzzzzz

aleksklad [387]

Answer:

k = 2

Step-by-step explanation:

9 = k(6) - 3

12 = 6k

k = 2

5 0

3 years ago

Read 2 more answers

What is the simple interest if

Ahat [919]

Answer:

60 dollars. I hipe this helps

8 0

2 years ago

Read 2 more answers

Home depot has an electric drill that regularly sells for $18.50. it is on sale for 20% off. if the sales tax is 6%, what will y

inn [45]

18.50/100 = 0.1850
0.1850 x 20 = 3.70
18.50 - 3.70 = 14.80

14.80/100 = 0.1480
0.1480 x 6 = 0.888
14.80 + 0.88 = 15.68

the final cost would be $15.68

5 0

2 years ago

Plot the following and their opposites on the number line.

vodka [1.7K]

Step-by-step explanation:

Is there a image or any numbers because I can't see any

7 0

3 years ago