After using the basic formula, the answer is down
Answer:
1
Step-by-step explanation:
Mistake in the second step.
We must add positive numbers or negative ones.
Here he had add the positive and negative numbers and that is the mistake
Here 5 is positive because -×-=+
![=8-7](https://tex.z-dn.net/?f=%3D8-7)
![=1](https://tex.z-dn.net/?f=%3D1)
In the second step, we must add the positives that are 3 and 5 and subtract from 7.
Hope it will help you.
Answer:
Marry = $17
Ravi = $11
Alan = $34
Step-by-step explanation:
Let us assume
Mary be X
Ravi be Y
Alan be Z
So, the equation in total is
X + Y + Z = 62
It is given that
X = Y + 6
Z = 2X
Now we put the Z value in the total equation, so it would be
X + Y + 2X = 62
3X + Y = 62 .................................... (1)
And can we write
X = Y + 6
X - Y = 6 ................................. (2)
Now substitution these two equations,
3X + Y = 62
X - Y = 6
2X = 68
X = $17
So, Z = 2 × 17 = $34
And, Y
$17 + Y + $34 = $62
So, Y = $11
Answer:
The answer is 1716
Step-by-step explanation:
214.50x8=1716
Answer: True.
Step-by-step explanation:
- An indirect proof is a proof where we temporarily assume that what we are trying to prove is false.
- The word negation means the contradiction or denial of something.
There are some steps for indirect proof:-
1) Observe the given information and what we need to prove.
2) Then negate the statement you must prove and assume its negation is true.
3) Then we use direct reasoning to show the assumption is false.
4) At last conclude that since the assumption was false, then the original conclusion must be true.