Answer:
It would be 9.6 inches after 4 weeks.
The expression you would use is 5 + 2.5 × ww = ?
Step-by-step explanation:
At the beginning of spring, Eva planted a small sunflower in her backyard. When it was first planted, the sunflower was 5 inches tall. The sunflower then began to grow at a rate of 2.5 inches per week. How tall would the sunflower be after 4 weeks? How tall would the sunflower be after ww weeks? Write an expression.
So the sunflower was 5 inches tall to start off.
First you need to do 2.5 times 4.
Which is 9.6 inches after 4 weeks.
The expression you would use is.
5 + 2.5 × ww = ?
Answer:
1.495
Step-by-step explanation:
The answer that you are looking for 1/5, you basically 2/3 in decimal form is 0.6. Then you divide by 3 to get 0.2. Then the way I did this was by first doing 2 over 10 (2/10), then reduced it to 1/5 (1 over 5).
*This was the way I did it, you don't have to do it this way. Find a way that is easiest for you to answer problems like this in the future.
Answer:
11. the first one 12. the last one
Step-by-step explanation:
–2x + 4y = –7 . . . . . (1)
y = -1/2x + 5 . . . . . . (2)
Putting (2) into (1), we have:
-2x + 4(-1/2x + 5) = -7
-2x - 2x + 5 = -7
-4x = -7 - 5 = -12
x = -12/-4 = 3
y = -1/2(3) + 5 = -3/2 + 5 = 7/2
Hence, the system has one solution.
