All categories

2 years ago

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

2 answers:

6 0

Paid-cost-tax=change
minus change both sides and add tax to both sides
paid-cost-change=tax
100-69.78-26.73=tax
3.49=tax
the tax was $3.49 or abut 5%

pshichka [43]2 years ago

3 0

The tax was 3.49 dollars thats what i got hope it helps you man :)

You might be interested in

43. Find an equation of the tangent line to the curve <img src="https://tex.z-dn.net/?f=y%3D10%5E%7Bx%7D" id="TexFormula1" title

astraxan [27]

Answer:

23x-y=13

Step-by-step explanation:

we need to find the derivative with respect to x

In(y) =In(10^x)

In(y)=xIn(10)

now we have to take the derivative with respect to x

Therefore, y'=yIn(10)

where y'=10^xIn(10), Chain rule!

note: First derivative function always give us the gradient value when x value is substituted in

Therefore, at x=1, our gradient will be m= 10^1In(10)

Gradient m=23.0 to the nearest tenth

Finding the equation of the line

y-y1=m(x-x1)

y-10=23(x-1)

y-10=23x-23

y-23x=-23+10

y - 23x = -13

so, the equation of the line tangent line is 

23x - y =13

8 0

2 years ago

Pls answer my question

Mariulka [41]

Answer:

hope this helps you

have a great day

4 0

2 years ago

At the ice cream parlor there are thirty flavors, but for the last week they have only had 25 flavors.

myrzilka [38]

Answer: Percent change = 20%

===========================================================

Work Shown:

A = old value = 25 (last week's number)

B = new value = 30 (current week's number)

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (30-25)/25 ] * 100%

C = [ 5/25 ] * 100%

C = 0.20* 100%

C = 20%

The percent change is 20%

The positive value of C indicates we have a percent increase.

8 0

3 years ago

Please help sneakynuggests

JulsSmile [24]

Answer:

You plug in the values of x's and then minus 1 and you get your y

4 0

2 years ago

What two ways can you find the product of 8x997 using mental math

ss7ja [257]

8=10-2 or
997=1000-3
so we can use distributive property
remember, a(b+c)=ab+ac

for the first one
8(997)=(10-2)(997)=997(10-2)=997(10)+997(-2)=9970-1994=7976

2nd one
8(997)=8(1000-3)=8(1000)+8(-3)=8000-24=7976

7 0

3 years ago