Answer:
5/14
Step-by-step explanation:
-5*-1/7*4/8=5/7*4/8=20/56=5/14
Answer:
Correct statements:
Step-by-step explanation:
A line that rises from left to right has a positive slope.
A line that falls from right to left has a negative slope.
A horizontal line has no slope. (slope of 0)
DC/AC=EC/BC
x/(x+3)=10/16
10(x+3)=16x
10x+30=16x
30=6x
x=5
DC=x=5
DC=5 units long
10/16=DE/AB, DE=y
10/16=y/10
16*y=10*10
y=6.25≈6.3
DE≈6.3
Answer:
$7.5
40 kg
Step-by-step explanation:
Expenses= $300 per week
120x= 300+600
120x=900
x= 900/120= $7.5 per kg
300/7.5= 40 kg to be sold to cover weekly expenses
Answer: 3b+3s
Step-by-step explanation:
The first part of this question is:
<em>Rachel needs to write 3 book reports with b pages and 3 science reports with s pages during the school year. How do you write an algebraic expression for the total number of pages Rachel will need to write?</em>
This means Rachel has to write 3b+3s pages
Now, if Yassi has to write 3(b + s) pages, we can use the distributive property and the result is:
3(b + s)=3b+3s
Which is the same number of pages Rachel has to write.
