<span>1.Problem 3. 5 x 2 + 18 x + 9. Show Factors By Grouping. Use the formula. Product of (a)(c) = (5)(9) = 45. ... 2)Problem 4. 2x² + 5x + 3. Factor it. Apply our formula. ... 3)Problem 5. 5x² + 13x + 6. Factor By Grouping. Remember our formula. ... 4)<span>Problem 6. 7x² + 9x + 2. Factor By Grouping. You know the deal-- Use our formula for factoring by grouping. there are some EX's</span></span>
Answer:
the answer is C
Step-by-step explanation:
M=cost per movie
v=cost per video game
2m+5v=33
8m+3v=30
use elimination
eliminate movies
mutliply first equation by -4 and add to 2nd
first equation becomes -8m-20v=-132
add the 2 equations
-8m-20v=-132
<u>8m+3v=30 +</u>
0m-17v=-102
-17v=-102
divide both sides by -17
v=6
subsiutute back
2m+5v=33
2m+5(6)=33
2m+30=33
minus 30 both sides
2m=3
divide 2
m=1.5
rental cost per movie is $1.50
rental cost per video game is $6
Answer:
$1864
Step-by-step explanation:
11% of 1200=132
132×2(years)=264
1200+264=1864
5x+25=85
Add 25 because he already saved that amount of money
5x because 5 is the amount of money he makes a week and x= number of weeks.
And =85 because that’s the total cost
To find the amount of weeks, just solve the equation
5x+25=85
5x=60
X=12 weeks
Hope it helps