Answer:
You can decide where to put the first digit because you know 153 doesn't fit into 6 or 61. But you know it can fit into 613. You put it there.
Answer: y = 3 or y=7
Step-by-step explanation:
what 2 factors of 21 can equal 10 when added together (1*21- no 3*7- yes)
Factor
y-3=0
y=3
or y-7=0
y=7
Answer:
3x + y - 3
Step-by-step explanation:
<u>Like Terms</u>: In algebra, like terms are terms that have the same variables and powers.
To simplify this expression and get an expression that is eual to 5x + 3y - 2x - 2y - 3 I used <em>like terms</em> :
(5x - 2x) + (3y - 2y)
(5x - 2x = <em>3x</em>) + (3y - 2y = <em>1y or y</em>)
3x + y
Then we add the <em>- 3 </em>at the end giving us:
<u><em>3x + y - 3</em></u>
Answer:
Darlene and Mary will be on the same page after 1 hour.
Step-by-step explanation:
Given:
Number of pages Darlene has already completed = 72
Rate at which Darlene continues working = 14 pages per hour
Number of pages Mary has already completed = 81
Rate at which Mary continues working = 5 pages per hour
To Find:
Time after which the students will be on the same page =?
Solution:
let the time after which the students will be on the same page bex X
then
After X hours, number of pages completed by Darlene will be
72 + 14(x)--------------------------------------------------(1)
After X hours, number of pages completed by Mary will be
81 + 5(x) ---------------------------------------------------(2)
Equating the equations (1) and (2)
72 + 14(x) = 81 + 5(x)
72 +14x = 81 + 5x
solving the equation,
14x - 5x = 81-72
9x= 9
x=
x=1
Answer:
The answer is D.
Step-by-step explanation:
Edge