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STALIN [3.7K]
3 years ago
15

1. Use the distributive property to write 13y-(5x-3y)+x (can u also answer) 2. The state sales tax rate is 4.75% harold would li

ke to buy a shirt with sales price of $20.If harold buys the shirt how much would he pay for sales tax?
Mathematics
1 answer:
slava [35]3 years ago
4 0

Answer:

Step-by-step explanation:

1) The given expression is

13y-(5x-3y)+x

Applying the distributive property, we would multiply each term inside the bracket by the - 1 which is outside the bracket first. it becomes

13y - 5x + 3y + x

- 5x + x + 13y + 3y

- 4x + 16y

2) The state sales tax rate is 4.75%. If Harold buys a shirt whose sales price is $20, the amount that he would pay for sales tax is

4.75/100 × 20 = 0.0475 × 20 = $0.95

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Find the zero(s) of each function algebraically.<br>f(x) = 8x-16<br>​
vodomira [7]

the zero(s) of function  f(x)=8x-16 is x=2

Step-by-step explanation:

We need to find the zero(s) of function algebraically.

We are given: f(x)=8x-16

To find the zeros we put the function equal to zero.

8x-16=0\\Solving:\\8x=16\\x=\frac{16}{8}\\x=2

So, the zero(s) of function  f(x)=8x-16 is x=2

Keywords: zero(s) of function

Learn more about zero(s) of function at:

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4 0
3 years ago
please help me it is URGENT pls the first one is solve and the 2nd one is simplify I will give u lots of points thank you
klasskru [66]
I.) (5x+3)/4-(2x-4)/3=5
Clear fractions:
3·((5x+3)/4)=15x+9
4·((2x-4)/3)=8x-16
15x+9-(8x-16)=5
15x+9-8x+16=5
Combine like terms:
7x+25=5
7x=-20
x=-20/7

II.) (3/11)·(5/6)-(9/12)·(4/3)+(5/13)·(6/15)
Remember PEMDAS
So first multiply:
3/11·5/6=15/66
9/12·4/3=3/3·1/1=3/3=1
5/13·6/15=1/13·6/3=6/39=2/13
(15/66)-1+(2/13)
Combine:
15/66-1/1=15/66-66/66=-51/66
-51/66+2/3=-51/66+44/66=-7/66
Answer: -7/66 :)
7 0
3 years ago
Read 2 more answers
An investment made in the stock market decreased at a rate of 2.2% per year for 10 years. What is the current value of
never [62]

Answer:

$800,500 (nearest dollar)

Step-by-step explanation:

The given scenario can be modeled as an <u>exponential equation</u>.

<u>General form of an exponential function</u>:

 f(x)=ab^x

where:

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  • b is the base (growth/decay factor) in decimal form
  • x is the independent variable
  • y is the dependent variable

If b > 1 then it is an increasing function

If 0 < b < 1 then it is a decreasing function

The initial value (a) is the value of the investment.

Therefore, a = 1,000,000.

If the investment <u>decreases</u> by 2.2% each year, then it will be 97.8% of the previous year.

Therefore, b = 97.8% = 0.978.

Substitute these values into the formula to create a general equation for the scenario:

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Therefore, the value of the investment after 10 years is $800,500 (nearest dollar).

Learn more about exponential functions here:

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1 year ago
What is the area of a triangle with a base length of 2 1/2 inches and a height of 2 inches
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Hello I am happy to help you with this problem. So the formula to solve for a triangle is A = bxh divided by 2.
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I hope that helps you. If you have any questions please feel free to ask me.
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3 years ago
How do you solve the equation 3x = 9 by multiplying 3 to both sides
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Whenever you see <em>x </em> next to a 3, and it says that it equals 9, you know that 3•3=9.
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3 years ago
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