Answer:
idk
Step-by-step explanation:
Answer:
It's incorrect because the equation is solve incorrectly the anwer is r= -4
Step-by-step explanation:
Add 4r4r to both sides.
-3r+9+4r=5
−3r+9+4r=5
2 Simplify -3r+9+4r−3r+9+4r to r+9r+9.
r+9=5
r+9=5
3 Subtract 99 from both sides.
r=5-9
r=5−9
4 Simplify 5-95−9 to -4−4.
r=-4
r=−4
Answer:
3x-5
Step-by-step explanation:
Answer:
y=521x+220
Step-by-step explanation:
he makes 521 per week, his income depends on the number of weeks worked.
The 220 is a one time thing, his grandma is not giving his 220 a week.
9514 1404 393
Answer:
5n -3
Step-by-step explanation:
Try n=1 in each expression and see which gives you a first term of 2.
2-5n = 2-5·1 = -3
2n -5 = 2·1 -5 = -3
5n -3 = 5·1 -3 = 2 . . . . . this is the expression you want
5n +2 = 5·1 +2 = 7
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<em>Additional comment</em>
For a common difference of 5, <em>the coefficient of n must be 5</em>. The second answer choice fails on that count also.
