Answer:
x> -3
Step-by-step explanation:
See image below:)
On problem B. if you could divide 2 from 20, with is 10. So if your friend arrived 10 minutes earlier than you she would of already made 20 sandwiches, while you made only 10.
<u><em>which means you guys made 30 sandwiches in 20 minutes, Hope this helped. </em></u>
<u><em></em></u>
<h3>
P.S tell me if I was wrong (0.0)</h3>
5.
aritmetic is same increase per term
14 to 21 is 7
21 to 42 is 21
7≠21
no
6.
decreases by 4 each time
an=a1+d(n-1)
an=10-4(n-1)
n=12 for 12th term
a12=10-4(12-1)
a12=10-4(11)
a12=10-44
a12=-34
it is -34
7.
missing term is y
22+n=y
y+n=34
22+n+n=34
22+2n=34
minus 22 from both sides
2n=12
divide both sides by 2
n=6
22+n=y
22+6=y
28=y
28 is answer
5. no
6. -34
7. 28
9514 1404 393
Answer:
21
Step-by-step explanation:
Rearranging the given ratio, we can find the ratio of boys to the total.
boys : (boys +girls) = 7 : (7+8) = 7 : 15
Then the number of boys is ...
(7/15)(45) = 21
There are 21 boys in the classroom.
