Good morning ☕️
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Step-by-step explanation:
Let p1 be the perimeter of triangle ABC
p2 be the perimeter of triangle PQR
p1=(2x+4)+(2x+3)+(2x) = 6x+7
p2=(2x)+(2x)+(3x+1) = 7x+1
p1=p2 ⇔ 6x+7=7x+1 ⇔ 7x-6x=7-1 ⇔x=6
Then :
AC=2(6)=12
AB=2(6)+4=16
BC=2(6)+3=15
PQ=12
QR=12
PR=3(6)+1=19.
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:)
Answer:
20 minutes
Step-by-step explanation:
Find the speed per km. 2km/8min. This is 4 minutes per km.
Next, multiply the minutes per km by km. 4 min x 5 km.
This equals 20 :)
Answer:
3*x=15
Step-by-step explanation:
i think-
Answer:
A. Cubic binomial.
Step-by-step explanation:
SA=(a+b+c) h+bh
=(5+12+13)*4+5*12
=20*4+60
=80+60
=140 cm squared
