Answer:
x(-10.5,0)
y.(0,-21)
Step-by-step explanation:
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Answer:
He bought 20 shirts
Step-by-step explanation:
shirts -- x
pants -- 3/4 of x
Therefore,
He bought --- 28(3/4 of x) pants and 40(x) shirts.
So, 28(3/4 of x) + 40(x) = 1220
=> 21x + 40x = 1220
=> 61x = 1220
=> x = 20
He bought 20 shirts and 15 pants.
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-3 and -16 multiply to 48 since negatives cancel and add to -19
A decimal point................................................................
