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Elina [12.6K]
3 years ago
6

v A t-shirt originally costs $18.50. It is on sale for 10% off. What is the sale price of the t-shirt?

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0

Answer:

16.65

Step-by-step explanation:

10% of 18.50 is 1.85, so you just subtract that.

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Since 24/6 = 4. So 4 is a integer, rational number, and whole number
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What is the greatest number which can be made using each of the digits 5,3,1,4,7?
Xelga [282]
75,314 because it is only 5 numbers so this is correct.
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9e^x-240=6e^x+270 what is the solution
zmey [24]

e^x=170

because you subtract like terms (or add, it depends) then simplify (im bad at explaining)

4 0
3 years ago
If f(x-3)=x^2-4x+5, what's f(1-x)​
olganol [36]

Answer:

\large\boxed{f(1-x)=x^2-4x+5}

Step-by-step explanation:

f(x-3)=x^2-4x+5\\\\f((x-3)+3)\to\text{put x + 3 to the equation of the function:}\\\\f(x-3+3)=(x+3)^2-4(x+3)+5\\\text{use the distributive property and}\ (a+b)^2=a^2+2ab+b^2\\f(x)=x^2+2(x)(3)+3^2+(-4)(x)+(-4)(3)+5\\f(x)=x^2+6x+9-4x-12+5\qquad\text{combine like terms}\\f(x)=x^2+(6x-4x)+(9-12+5)\\f(x)=x^2+2x+2\\\\f(1-x)\to\text{put 1 - x to the equation of the funtion f(x):}\\\\f(1-x)=(1-x)^2+2(1-x)+2\\\text{use the distributive property and}\ (a-b)^2=a^2-2ab+b^2

f(1-x)=1^2-2(1)(x)+x^2+(2)(1)+(2)(-x)+2\\f(1-x)=1-2x+x^2+2-2x+2\qquad\text{combine like terms}\\f(1-x)=x^2+(-2x-2x)+(1+2+2)\\f(1-x)=x^2-4x+5

4 0
3 years ago
The ratio of the ages of three children is 2:4:5. The sum of their ages is 33. What is the age of each child?
sdas [7]
We can represent this situation by the equation 2x+4x+5x=33.

Then 11x=33, and x = 3.  

Then the children's ages are in the ratio 2x:4x:5x, or 2(3):4(3):5(3), or

6:12:15.

Do these 3 ages add up to 33?  6 + 12 + 15 = 33?  YES!

The children's ages are 6, 12 and 15 years respectively.
4 0
3 years ago
Read 2 more answers
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