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skad [1K]
3 years ago
7

Can someone please help me! I'll give brainliest to who ever answers first with a positive answer

Mathematics
1 answer:
Effectus [21]3 years ago
7 0

1. 3(p+q)=p

3p+3q=p; 3p-p=3q; 2p=q so p=q/2


2. 4a=2b-7

2b=4a+7 so b=(4a+7)/2

when a=3 , b=(12+7)/2=19/2=9.5


3. d=rt; r=d/t

4.( 2x15)+(2xwidth)=90

2x width=90-30

width =60/2=30


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