Answer:
is the question correct, you end up with no X's
3x -4x + x = 9
or I've got it wrong
<h3>
Answer: 30</h3>
Work Shown:
2/5 of 75 = (2/5)*75 = 0.4*75 = 30
Yesterday 30 people gave speeches. There are 75-30 = 45 people left.
1/3 of 45 = (1/3)*45 = 15
Then another 15 people gave speeches today. So there are 45-15 = 30 people who haven't given their speeches yet.
F =

c + 32 Subtract 32 from both sides
F - 32 =

c Mutliply both sides by <span>

to cancel out the fraction
</span>

F - 17

= c Switch the sides to make it easier to read
c =
F - 17 <span>
</span>
Answer:
4 5/6
Step-by-step explanation:
This would be the answer as a mixed number
10d+ 25q+5n= 805
D= n+8
Q= n+ 5
10d+ 25q+5n= 805
10(n+8)+25(n+5)+5n=805
10n+80+25n+125+5n=805
40n+205=805
40n=805-205
40n= 600
N=600/40
N= 15
D= n+8
D= 15+8
D= 23
Q=n+5
Q=15+5
Q=20
So 15 nickels ,23 dimes and 20quarters .
To check
15(0.05)= $0.75
23(0.10)=$2.30
20(0.25)=$5.00
Add it
5.00+2.30+0.75=8.05
7.30+.75=8.05
8.05=8.05