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2 years ago

PLS HELP

Mathematics

2 answers:

tatuchka [14]2 years ago

4 0

Answer:

#1) 0.08x; #2) (1+x)

Step-by-step explanation:

#1) 0.08 is read as 8 hundredths. This can also be written as 8/100. Percent means out of 100; this means 8/100 is 8%. This means 0.08x is taking 8% of the original amount; this would represent the sales tax that is paid.

#2) In this problem, x is the percent of markup written in decimal form. This means that adding 1 to this number gives us 100% plus the percent of markup. This will give us the percentage of the original price that was paid, since we are paying 100% of the original price plus the markup.

Naddik [55]2 years ago

3 0

I can give you the answer only for the first question, but this one will definitely help you and bring you the points you need. The amount of tax that is paid on the computer is 0.08x, where x is the original cost
and 8% is the tax rate. Hope you still need because that's really works.

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All of them plz I need help if ur older Shouldnt be hard

vfiekz [6]

Answer:

The answer for number 1 would be 57 dollars and 80 cents

Number two would be little ceasars

Number 3 would be 75 dollars and 60 cent

Number 4 would be 40 dollars and 80 cent

Number 5 would be 110 dollars and 98 cents

Step-by-step explanation:

Because of you take 68 and times it by 15% which would be .15 you would get 10.2 you would then take 68 and subtract 10.2 from it and get 57.8

Number 2: take 7.50 times it by .3 and you get 2.25 then subtract 2.25 from 7.50 and you get 5.25 so even with the coupon little ceasars pizza is still 25cent cheaper

Number 3: add 42 to 28 and you get 70. 8% of 70 is 5.6 so add 5.6 to 70 and you have your answer of 75.60

Number 4: 35.48 is the price alone. Times that number by .15 and you get 5.322. Add 35.48 and 5.322 to get 40.802 but for money wise you just need the 40.80

Number 5: 118 one again is the price standing alone but 118 multiplied by .10 is 11.8 so subtract 11.8 from 118 and you get 106.2 but there is still a sales tax. So 106.2 times .045 or 4.5% would be 4.779, add that number to 106.2 and you get 110.979. Now the problem did not say anything about rounding but the 9 would make the 7 an 8 so of you do that you get 110.98.

So to help you in the future when dealing with percentages with discounts and tax’s. if it’s a discount once you times the original number by the percentage you subtract the sum from the original number. As for taxes you do the same process but instead of subtracting you add

5 0

2 years ago

Suppose you invest 1600 at annual interest rate of 7.9% compounded cont how much will u have after 10yrs

frez [133]

Answer:

B. $3525.43

Step-by-step explanation:

We will use continuously compound interest formula to solve our problem.

$A=P*e^{rT}$

A= Amount after T years.

P= Principal amount.

r= Interest rate (in decimal form).

e= The mathematical constant e.

T= Time in years.

First of all we will convert our interest rate in decimal form.

$7.9\text{ Percent}=\frac{7.9}{100}=0.079$

Now let us substitute our given values in above formula.

$A=1600*e^{0.079*10}$

$A=1600*e^{0.79}$

$A=1600*2.2033964262559365$

$A=3525.4342820094984\approx 3525.43$

Therefore, we will get an amount of $3525.43 after 10 years and option B is the correct choice.

8 0

2 years ago

I need help on my homework. thank u

bulgar [2K]

Answer:

Sure. Whats the question.?

Step-by-step explanation:

5 0

3 years ago

How do you solve 21r < 7?

quester [9]

21r < 7
Divide by 21
r < 7/21

5 0

3 years ago

Read 2 more answers

Find the exact length of the curve. x=et+e−t, y=5−2t, 0≤t≤2 For a curve given by parametric equations x=f(t) and y=g(t), arc len

Rama09 [41]

The length of a curve C parameterized by a vector function r(t) = x(t) i + y(t) j over an interval a ≤ t ≤ b is

$\displaystyle\int_C\mathrm ds = \int_a^b \sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2} \,\mathrm dt$