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2 years ago

zack bought a coat for $ 69.78 he paid with a $100 bill and received $26.73 in change. how much was the sales tax ?

Mathematics

1 answer:

Ratling [72]2 years ago

5 0

The sales tax was $3.49.

First, you just subtract 69.78 from 100, and you get 30.22. Then you subtract 26.73 from 30.22 and you get 3.49.

Hope that helped!

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Consider the population of a small town that grows according to the explicit rule:

strojnjashka [21]

Answer:

45595

Step-by-step explanation:

plug in 7 for n and solve

This is the population 7 years after 2002(2009)

8 0

2 years ago

Three friends said their heights were 5 and start fraction 13 over 30 end fraction feet, 5 and one-sixth feet, and 5 and start f

KengaRu [80]

Answer:

$5\frac{1}{6} < 5\frac{13}{30} < 5\frac{68}{90}$

Step-by-step explanation:

Represent the friends with A, B and C

$A = 5\frac{13}{30}$

$B = 5\frac{1}{6}$

$C = 5\frac{68}{90}$

Required

Order from least to highest

First, we convert the given parameters to decimal

$A = 5\frac{13}{30}$

$A = 5 + \frac{13}{30}$

$A = 5 + 0.43$

$A = 5.43$

$B = 5\frac{1}{6}$

$B = 5 + \frac{1}{6}$

$B = 5 + 0.17$

$B = 5.17$

$C = 5\frac{68}{90}$

$C = 5 + \frac{68}{90}$

$C = 5 + 0.76$

$C = 5.76$

So, we have:

$A = 5.43$ $B = 5.17$ $C = 5.76$

Order from least to greatest

$B = 5.17$ $A = 5.43$ $C = 5.76$

Replace them with the original values

$B = 5\frac{1}{6}$ $A = 5\frac{13}{30}$ $C = 5\frac{68}{90}$

Hence, the correct order is:

$5\frac{1}{6} < 5\frac{13}{30} < 5\frac{68}{90}$

5 0

2 years ago

Read 2 more answers

The equation a = 640s gives the relationship between s square miles and a acres. Bob owns 3.5 square miles of farmland. How many

Annette [7]

Acres = 640 * sq miles
acres = 640 * 3.5
acres = 2,240 square miles

**************************************************************
Incidentally, here's how that 640 acres per square mile is derived.
1 acre = 43,560 square feet
1 square mile = 5,280^2 = 27,878,400 square feet
 27,878,400 / 43,560 = 640 acres exactly

7 0

2 years ago

You have a 500-foot roll of chain link fencing and a large field. You want to fence in a rectangularplayground area. What are th

exis [7]

The length of the fencing is 500 foot

That means the perimeter of the playground = 500

Assume that the dimensions of it are x and y

So 2x + 2y = 500 ---- perimeter of the rectangular yard

Divide both sides by 2

x + y = 250

Now subtract the two sides by x to find y in terms of x

x - x + y = 250 - x

y = 250 - x --------(1)

Since we need to find the maximum area, let us find the area in terms of x and y

Area of the yard is A

A = xy -------- area the rectangle

Now substitute y by (1)

A= x(250 - x)

A = 250x - x^2

For the maximum area, we will differentiate A with respect to x

$\frac{dA}{dx}=250-2x$

For maximum area equate dA/dx by zero

Since dA/dx = 0

250 - 2x = 0

Add 2x for both sides

250 - 2x + 2x = 0 + 2x

250 = 2x

Divide both sides by 2

125 = x

3 0

11 months ago

Answer this please ;)

emmainna [20.7K]

A) BC/YZ=AC/YX
this is the answer to your question

3 0

3 years ago