You do this...
3x + 5 = 26
subtract five
3x + 5 = 26
-5 -5
divide by three
3x = 21
---- ----
3 3
x=7
The number is 7.
Answer:
x=4 x = 3/2
Step-by-step explanation:
3(x – 4)(2x - 3) = 0
We can use the zero product property
x-4 =0 2x-3=0
Solve each equation
x-4 =0 2x-3=0
x=4 2x=3
x =3/2
Answer:
2,219
Step-by-step explanation:
hope this help
Answer:
<h3>length = 28 cm</h3><h3>width = 12 cm</h3>
Step-by-step explanation:
Perimeter of a rectangle = 2l + 2w
where
l is the length
w is the width
From the question
Perimeter = 80cm
The length is 4 inches longer than twice the width is written as
l = 4 + 2w
Substitute this into the formula and solve for the width
That's
80 = 2( 4 + 2w) + 2w
80 = 8 + 4w + 2w
6w = 80 - 8
6w = 72
Divide both sides by 6
w = 12 cm
Substitute w = 12 cm into l = 4 + 2w
That's
l = 4 + 2(12)
l = 4 + 24
l = 28cm
Therefore
length = 28 cm
width = 12 cm
Hope this helps you
I turn the mixed numbers into decimals before doing anything else.
11 2/5----> 57/5----> 11.4
4 2/7----> 30/7----> 4.29
2 1/7----> 15/7----> 2.14
11.4=q-4.29+2.14
11.4=q-2.15
13.55= q
13.55 converted to a fraction is 13 11⁄20
q=13 11⁄20
