Answer: 1 out of 4
Step-by-step explanation:
If you divided the total amount of balloons that were sold by the amount of white balloons, it would be 4. The 1 comes from 1 in 4 being the probability of them being white. You can check this by multiplying the 1 and 4 by 6 and it would be 6 out of 24, which shows our answer is correct.
Answer:4/15 i'm doing it and that was the answer
Step-by-step explanation:
Answer:
x=-3
Step-by-step explanation:
(3x-15)/2 = 4x
Multiply each side by 2
(3x-15)/2 *2= 4x*2
3x-15 = 8x
Subtract 3x from each side
3x-15-3x = 8x-3x
-15 = 5x
Divide each side by 5
-15/5 = 5x/5
-3 =x
Answer:
X=-3
Step-by-step explanation:
a) What is the cost of an advertisement of 15 words for one week?
b) What is the greatest number of words in an advertisement costing up to $8 for one week?
c) If an advertisement is run for two weeks, the cost for the second week is reduced by 30%. Calculate the total cost for an advertisement of 22 words for two weeks.
Answer:
a) 495 cents
b) 25 words
c) 1174.7 cents
Step-by-step explanation:
a) The cost is equal to 28 x 15 + 75 which equals 420 + 75 which equals 495 cents.
b) (800 cents - 75) divided by 28
= 725 / 28
= 25.9
Since you cannot have 0.9 of a word it is rounded down to 25.
c) 22 words in the first week will cost 22 x 28 + 75 = 616 + 75 = 691 cents
In the second week it will cost 30% less which means it will only cost 70% of the ordinary price. Therefore the second week will cost:
0.7 x 691 = 483.7 cents
Total = 483.7 + 691
= 1174.7 cents
Hope this helps :)
Do not include any spaces in your answer. Use parentheses to separate your factors. A sample answer might be (x+1)(x-4).
Answer:
(x-8) (x+7)
Step-by-step explanation:
x^2 -x-56
We want to factor this problem.
What two numbers multiply to negative 56 and add to -1
-8 *7 = -56
-8+7 = -1
We can use -8 and 7
(x-8) (x+7)
Check:
FOIL
first: x*x =x^2
outer: 7x
inner:-8x
last: -8*7 = -56
Add this together
x^2 +7x-8x -56 = x^2 -x-56
4(x+3)(x+1)/(x+5)(x-5) x=3
The value of the given expression will be equal to -3.
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The solution to the expression is:-
= 4( x + 3 ) ( x + 1 ) / ( x + 5 ) ( x - 5 )
= 4( 3 + 3 ) ( 3 + 1 ) / ( 3 + 5 ) ( 3 - 5 )
= ( 4 x 6 x 4 ) / ( 8 x -2 )
= -3
Therefore the value of the given expression will be equal to -3.
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b. Then find (to 3 decimal places) the number b such that the line y = b divides R into two parts of equal area.
Answer:5% increase
Step-by-step explanation: