Answer:
and 
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Step-by-step explanation:
Given
Required
Equations with 
as a solution
Divide both sides by -2
Add 4 to both sides
Divide both sides by 3
Multiply both sides by 2
Subtract 2 from both sides
Divide both sides by 1
Open bracket
Collect like terms
Divide both sides by -7
Subtract 6 from both sides
Multiply both sides by 3
Add 12 to both sides
Divide both sides by 4
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1) When you're finding ratios, the best thing to do is to add the parts together to find what one part is.
2+4= 6. Then divide this by the total- 18/6=3.
Therefore, the ratio of red to brown chairs is 2*3:4*3
Therefore, the amount of red chairs is 12.
2) The best thing to do i to find out how long it takes him to read one book them multiply this by 15.
To do this, simply divide the amount of time by the amount of books that he has read.
30/10= 3
Therefore, Rock can read a book in three minutes. As he is reading 15, you multiply these together.
3*15= 45
Therefore, it will take Rock 45 minutes to read 15 books.
3) The best thing to do is to find out what one pastry costs, and you can do this by dividing the cost by the amount of pastries.
160/8= 20.
Therefore, one pastry costs $20.
As you want to find the cost of 16 pastries, you simply times these together.
20*16= 320
Therefore, 16 pastries cost $320.
Hope this helps :)
There is no sign before 32 is given in the equation. I am showing the work with +32.
8x+32=1/5(25x−15)−4x.
By distribution property.
8x+32=x-3 Combine the like terms.
8x=x-3-32 Subtract 32 from each sides.
8x=x-35 Combine the like terms.
8x-x=-35 Subtract x from each sides.
7x=-35
Divide each sides by 7.
So, x=-5
$0.09 per cookie
first, you subtract $2.25 from $5.40 to get $3.15.
then, you divide $3.15 by 35 and you get $0.09.
Hope this helps!(:
Question says to find the square root of 3.24.
To find square root of decimal numbers, we can start by converting them into fraction so that decimal gets removed then find square root of numerator and denominator separately.
there are two digits after decimal in 3.24 so we can rewrite 3.24 as 324/100
Now let's find square root of the resulting fraction
Hence final answer is 1.8.
