Answer:
48cm²
Step-by-step explanation:
If the area A of a triangle varies jointly as the base b and the altitude h of the triangle, this is expressed as;
A = kbh
k is the constant of proportionality
If A = 70cm², b = 14cm and h = 10cm
Substitute
70 = k(14)(10)
70 = 140k
k = 70/140
k = 0.5
To get the area if base is 8 cm and the altitude is 12 cm;
A = 0.5*8*12
A = 48cm²
Hence the required area is 48cm²
Answer: 9 feet, 22 feet and 23 feet
Step-by-step explanation:
Let the smallest side be x.
The middle length side is 4feet greater than twice the length of the smallest side. This will be:
= (2 × x) + 4 = 2x + 4
The longest side is 4feet less than 3 times the length of the smallest side. This will be:
= (3 × x) - 4 = 3x - 4
Perimeter = x + 2x + 4 + 3x - 4
x + 2x + 4 + 3x - 4 = 54
Collect like terms
6x = 54
x = 54/6
x = 9
The three sides are
Smallest side = 9 feet
Middle side = 2x + 4 = 2(9) + 4 = 18+4 = 22 feet
Longest side = 3x - 4 = 3(9) - 4 = 27 - 4 = 23feet
Answer:
Cant do this because we dont have your username and password and the link you gave us isnt signed into your account sorry
Remember
anything times 1=same thing and
x/x=1 where x=x
so
mutliply both fractions by what makes the bottom numbers 40
1/5
5 times what=40?
answer is 8
multily by 1 or 8/8
1/5 times 8/8=8/40
7/8
8 is bottom
8 times what is 40? answer is 5
multiply by 1 or 5/5
7/8 times 5/5=35/40
1/5=8/40
7/8=35/40
they are not equal
0.90 Is the answer hello hi ahsiodend
