Mary = 3x
Seth = X
If we know that Mary is three times older than Seth, we can set this up into an equation.
3x + x = 76
Now, we can simplify on the left side by adding the Xs together.
4x = 76
X = 19
Therefore, Seth is 19 years old and Mary is 57 years old.
What is the original price of the board game, before tax?
Answer:
$27.99
Step-by-step explanation:
100/7.25% sales tax = 1.54 x 13.7931034483 = 21.2413793104
We did the example to prove that when accounting for fixed tax the price will be higher once tax of same percentage amount applied.
This proves 1.75% more in interest is a far lower price ($6.56 less)
Where we compare the price set for 5.5 as asked in the question.
100/5.5% sales tax = 1.54 x 18.181818181 =27.9999999987
=$27.99
We do not round up or down repeating numbers.
Answer:
The number was rounded to the nearest ten thousand.
Step-by-step explanation:
In situations when you don't need an exact result, you can round numbers. When you round numbers, you always round to a particular place value, such as the nearest ten thousand. If you round up or down it usually depends on which number is closest to your original number. When a number is exactly between two possible numbers, it is rounded to the largest number.
Rounding 710,430 to 700,000 means doing so to the nearest ten thousand.
In this case there was a reduction of 10,430 (710,430 - 700,000) because 10,430 is less than half of 100,000.
Hope this helps!
Answer:
The coefficient of the fifth term is 126.
Step-by-step explanation:
The question implies that after the expansion of , what would be the coefficient of the fifth term. This long expansion can be easily done by the application of the Pascal principle of expansion.
Thus,
= + + + + + + + + +
So, from this expansion, the fifth term is . And its coefficient is 126.
Answer:
If you expand this using pascals triangle you will see that the fifth term is 126a^5b^4
the coefficient is the number 126
Hi there,
No. 1:
The answer is 8.2 ft, for sure.
Having this technique in mind, can you resolve the rest of 4 math questions, by yourself ? It is quite simple, isn't it ?
Green eyes.