Answer: 12.5 cm
Step-by-step explanation:
Equation would be:
1:80
?:1000
So you'll just have the cross multiply the equation above to find ? ( scale drawing lake). It'll be 1000*1/80 which will be 12.5 cm.
Multiply 7.22 onto 10b and -3
new equation - 72.2b-21.66=7b-14
add 21.66 onto -14
new equation - 72.2b=7b+7.66
subtract 7b from 72.2
new equation: 65.2b=7.66
divide 65.2 from b
new equation: b=7.66/65.2
final answer: b=0.117
37=a+5d
114=a+16d
_________
114-37=16d-5d
77=11d
7=d
_________
37=a+5×7
37-35=a
2=a
________
a23=a+(23-1)×d
a23=2+(23-1)×7
a23=156
Answer:153.9
Step-by-step explanation:
