The unit rate is $1.25 per pound
Answer:
28 + x
Step-by-step explanation:
To write this as an expression, you need to find out what sign you need to use ( multiplication, division,etc.)
More than means to add so you are using an addition sign. Now you need a variable to represent the number.
You can pick any letter but for this I am using x. When you put that all together you get the expression, 28 + x.
Answer:
w(x)=2.3x+31
Step-by-step explanation:
From the information given, the function would indicate that the weight of the dolphin after x days would be equal to the 31 pounds the baby weighed when it was born plus 2.3 lbs that is the average rate it is growing for the number of days:
w(x)= 2.3x+31, where:
w(x)= weight of the dolphin
x=number of days
The solution of the system of linear equation are (1, 7)
<h3>How to solve system of equation?</h3>
3a + 6b = 45
2a - 2b = -12
multiply equation(ii) by 3
Therefore,
3a + 6b = 45
6a - 6b = -36
9a = 9
a = 1
Hence,
2(1) - 2b = -12
2 - 2b = -12
-2b = -12 - 2
- 2b = - 14
b = -14 / -2
b = 7
learn more on equation here: brainly.com/question/14070610
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