Answer:
384 cm
Step-by-step explanation:
7.5 x 24 = 180
8.5 + 7.5 = 16
16 x 24 = 384
The given are:
cost for each blog = $20
cost for each feature article = $60
blog = 10+2(number of articles sold)
total earnings = $700
where,
a = article
b = blog
to solve,
60(a)+20(10+2a)=700
60a+200+40a=700
200+100a=700
100a=700-200
100a=500
a=500/100
a=5
The total feature articles produced last week was 5.
to check,
a+b=700
60(5)+20[10+2(5)]=700
300+20(10+10)=700
300+200+200=700
700=700
Indeed, the number of articles produced last week was 5.
Answer:
Q1 B
Q2 23.7yd
Step-by-step explanation:
Solution of Q2 is in the picture
Test
remember, (x,y)
A.
10=-3(-2)+4
10=6+4
10=10
yep, this is a soltuion
B.
5=-3(3)+4
5=-9+4
5=-5
false, not a solution
C.
4=-3(-2)+4
4=6+4
4=10
nope, not a solution
D.
1=-3(1)+4
1=-3+4
1=1
true
hmm, I think if B was (3,-5) then C is the only one
C is the answer
