Answer:
x = 6 cm
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = 
bh ( b is the base and h the height )
Here b = 12 and h = 4, then
A = × 12 × 4 = 6 × 4 = 24 cm²
Then area of parallelogram = 3 × 24 = 72 cm²
The area (A) of a parallelogram is calculated as
A = bh ( b is the width and h the height )
Here b = x and h = 12, thus
12x = 72 ( divide both sides by 12 )
x = 6
The width of the parallelogram is 6 cm
Answer:
6(8+3x)
Step-by-step explanation:
48+18x
We can factor out an 6 from each term in the expression
6(8+3x)
Step-by-step explanation:
OI= 3.2 cm (same as OH)
To find GI, use Pythagoras Theorem (a²+b²= c²)
6.8²+3.2²= 56.48
√56.48= 7.5 cm
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Answer:
c = -1
Step-by-step explanation:
3(c+5)=12
3 × c = 3c
3 × 5 = 15
3c + 15 = 12
<u> - 15 -15</u>
3c = -3
c = -3 ÷ 3 = -1
Check:
3(-1+5)=12
-3 + 15 = 12
Answer:
28 is added by -8 equals 20
Step-by-step explanation:
The equation to calculate something added by -8 equals 20 is as follows:
x-8 = 20
x = 20+8
x = 28
28 is added by -8 equals 20
