Answer:
15
Step-by-step explanation:
lets begin to set up this question. i personally find questions like these easiest when i begin to set up ideas to help my brain process it better, for example:
person a
person b
person c
person d
we know that each (person) must receive at least 1 candy. we also know that we have 7 candies. therefore if we want do draw this out :
person a- 1
person b- 1
person c- 1
person d -1
notice that we now have given away 4 of the 7 candies. now we have 3 candies left. we can simply:
person a- 2
person b-2
person c-2
person d- 1
but, keep in mind that there are still many more ways that we can distribute the candies to other kids. the question we are asked is how may ways can we do this. since i have already illustrated the question, you can either learn how to put this into an equation, or experiment how many variations there are. the answer, either way is 15.
Answer:
A.) 132.3 mm Hg
B.) 49 years old
Step-by-step explanation:
P = blood pressure
y = age in years
A.) Solution
To find: P
Given: y = 48
P = 0.006 x 48 x 48 - 0.01 x 48 + 119
P = 0.006 x 2,304 - 0.48 + 119
P = 13.824 - 0.48 + 119
P = 132.344 ⇒ 132.3
B.) Solution
To find: y
Given: P = 132.92
.......................................................
Answer: 49 years old
Format: y = mx + b
m = slope, b = y intercept
Plug into the format
Solution: y = 5x + 3
The answer is A. you basically just plug the numbers in and see which one is correct.
A.) To find the perimeter, add two lengths and two widths.
length= 3x+7
width= 2x-3
3x+7+3x+7+2x-3+2x-3
Combine like terms
you end up with an expression like this:
14x+8 cm
B.) Plug in 4 for x into the new expression:
14(4)+8
perimeter=64 cm
C.)When multiplying polynomials, it's just like normal multiplication, except remember to add the exponents.
3x*2x=6x^2
7*-3= -21
So, the new expression is:
6x^2-21 cm squared
D.) Again, plug in the 4 for x.
6(4^2)-21
4*4=16
16*6=96
96-21=75
Area=75 cm squared
E.) If the length is 5 cm longer:
Remember, the length is 3x+7
So, just add 5 to the expression.
7+5=12
The new expression is:
3x+12
Then, add that like you did before.
3x+12+3x+12+2x-3+2x-3
New expression:
Perimeter=10x+18 cm
