Me with this ixl answer whitney has a bowl of raspberries and blackberries. there are 7 more raspberries than blackberries, and there are 13 berries in all. how many blackberries does whitney have? i have to show them the difference and sum

Let's denote r as raspberries and b as blackberries. We know that there are 7 more raspberries than blackberries, so we can write:

r = 7 + b

Or:

r - b = 7

There are 13 berries in all, which means:

r + b = 13

Now, this is just a system of linear equations:

r - b = 7

r + b = 13

Subtract the two equations:

-2b = -6

Divide by -2:

b = 3

There are 3 blackberries.

answer: a and b

step-by-step explanation:

answer:

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