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Olegator [25]
3 years ago
7

Theo made a donation to a charity. His grandfather agreed to add $4.00 to Theo's donation amount and then donate half of that su

m. Theo's grandfather donated $4.25. Write and solve an equation to find the amount of Theo's donation
Mathematics
2 answers:
miss Akunina [59]3 years ago
8 0

So you have to solve for "donation" - so let's call that X. And the things we know are what the grandfather donated, as a function - meaning based upon - Theo's donation. We'll call that Y.

So Y is equal to 1/2 of $4 plus Theo's donation...... 0.5*(x+4).

So... 4.25 = 0.5(X+4), solving for X

4.25=0.5x + 2

-2            -2

2.25=0.5x - divide each side by 0.5 to get x alone.

x = 4.50

Plugging back in:

(4.50 + 4.00)*0.5 = 4.25!

ValentinkaMS [17]3 years ago
8 0

Answer:i don't understand

Step-by-step explanation:

I need an equation plz.

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