Answer:
86
Step-by-step explanation:
The average is the sum of all the grades divided by the number of tests.
83.8 = (84 + 79 + 82 + 88 + x) / 5
419 = 333 + x
x = 86
Answer:
Usha is correct
Step-by-step explanation:
See attachment
Given
Dimension of the development
Dimension of a football field
First, we calculate the area of the development.
Because it is triangular in shape, the area is:
Convert mile to meter
The area of 50 football pitch is then calculated as:
By comparison:
<em>Hence, Usha's thought is correct</em>
Here, y = -15 with x = -20
LCM of 15 & 20 is 60, so divide 15 & 20 from 60,
60/15 = 4 & 60/20 = 3
Now, multiply the results with intial values,
4y = 3x
y = 3/4 x
When y = 12,
x = 12 * 4/3
x = 48 / 3
x = 16
In short, Your Answer would be 16
Hope this helps!
Answer:
3:9
Step-by-step explanation:
since there are 9 marbles in total it must be x to 9
the only solution available, which shows this is 3:9
The answer is 4. 5 + 3 = 8. then u do 12 - 8, which is 4.
ta dah!!
