Hello i'm haveing trouble with this problem, when I solve it I'm geting the A=24.375, but it does not plug in correctly.
1.5 + 4/5a =21 Solve what A equals
I know the steps I just think i'm solveing it wrong.
If the a is in the numerator (4a/5), it is right, but if it is in the denominator (4/5a), it is wrong.
It is 4/5a so what am I doing wrong?
1.5+ 4/5 x a=21
Let me say this very clearly:
If the problem is
1.5+4/(5a)=21
subtract 1.5 from each side
4/(5a)=19.5
4/(5*19.5)=a
or a= 1.026
Now if it is (4/5)a then your answer is RIGHT
To solve the equation 1.5 + (4/5)a = 21, you need to isolate the variable 'a'. Let's go through the steps to solve it correctly:
1. Start by subtracting 1.5 from both sides of the equation to remove it from the left side:
1.5 + (4/5)a - 1.5 = 21 - 1.5
Simplifying, we get: (4/5)a = 19.5
2. Next, we need to isolate 'a' by getting rid of the fraction. To do this, multiply both sides of the equation by the reciprocal of the fraction, which is 5/4:
(4/5)a * (5/4) = 19.5 * (5/4)
The fractions cancel out on the left side, leaving us with: a = 19.5 * (5/4)
3. Multiply 19.5 by (5/4):
a = 19.5 * (5/4)
Multiply the numerators (19.5 * 5) to get 97.5, and multiply the denominators (4) to get 4:
a = 97.5/4
4. Simplify the fraction if possible. In this case, the fraction cannot be simplified any further:
a = 97.5/4
So, the correct value of 'a' is 97.5/4. If you evaluate this expression, you'll get the actual value of 'a'.