Answer:
19.4in
Step-by-step explanation:
1) formula for area of a triangle:
(b*h)/2=a
the area and height are already given so lets substitute them in the formula.
(b*23.8)/2=230.86
1) multiply by 2 on both sides
b*23.8=461.72
divide by 23.8 on both sides
b=19.4
the base is 19.4 in
hope this helps
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
4:12= 1:3
Answer: 81
Step-by-step explanation:
Mean of four nos = 85
Score = 85 x 4 = 340
Deduct 97 from 340 = 243
Mean of three nos. 243/3 = 81
Answer:10 and 20
Step-by-step explanation:Shreyas age:X
Arjuns age: 2x
Shreyas age 5 years ago:x-5
Arjuns age 5 years ago: 2x-5
We get the equation: 2x-5=3(x-5)
2x-5=3x-15
2x-3x=-15+5
-x=-10
X= 10
Shreyas present age is 10 years
Arjuns present age is 2x(2×10) =20 years
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