Step-by-step explanation:
The same triangle ~
10/m = 6/9
10 = 6m/9
(10)(9)/6 = m
15 = m
m = 15
Use pemdas (parenthesis, exponents, multiplication/division, addition/subtraction)
(28/4)*5-6+4^2
7*5-6+4^2
7*5-6+16
35-6+16
29+16
45
Your answer should be 45. Remember PEMDAS:)
Answer:
Step-by-step explanation:
Suppose the length of the carpet is x ft.
and the breadth of the carpet is y ft.
So the area of the rectangular shape =
Area=
Cost of carpet
Answer:
x = 12
Step-by-step explanation:
By basic proportionality theorem,
You can solve it by replacing the Y in the 2nd equation with the solved Y in the first.
4x + 2(3x-15)= 22
that should give you...
4x + 6x - 30 = 22
then combine like terms...
10x - 30 = 22
now we need to get X alone so add 30 to each side....
10x = 52
now divide both sides by 10..
X = 52\10
both are divisible by 2...
X = 26\5
you should be done unless you need Y as well then go back to the first and plug in what you found for X...
Y = 3(26÷5)- 15
and that should give you Y.
a 2nd method you can make your own answer by making x = 0 ..
Y= 3(0) -15
Y= -15
now put that in the 2nd for Y...
4x+ 2(-15) = 22...
4x-30= 22
add 30 to both sides..
4x = 52
divide by 4....
X = 13
now take this to the first for x...
Y= 3(15) - 15
Y = 30
you can check your work by plugging in the two on top and see if the final is the same..
30 = 3(15) - 15
the 2nd way is faster though of course..
anyway X= 13 Y= 30
