On number 3 you multiply the number on the outside of the “( )” by the numbers on the inside of the “( )” so 0.5(12m)-0.5(22n)
Number 4 you do the same... 2/3(18x)+2/3(6z) then you multiply those and then add the answers together.
<em><u>Answer:</u></em>
a. Jennifer gets 7 Kg
b. Jennifer has 5 Kg left
<u><em>Complete question:</em></u>
Jennifer's grandmother buys carrots at the farm stand. She and her 3 grandchildren equally share the carrots. The total weight of the carrots she buys is 28 Kg.
a. How many Kg of carrots will Jennifer get?
If Jennifer uses 2 Kg of carrots to bake muffins, how many Kg of carrots does she have left?
<u><em>Explanation:</em></u>
<u>Part a:</u>
We know that a total of 28 Kg will be divided equally among the grandmother and her 3 grandchildren. This means that 28 Kg of carrots will be shared equally among 4 people
We can get the number of Kg that Jennifer will get by simply dividing 28 by 4
<u>This is done as follows:</u>
Jennifer will get =
Kg of carrots
<u>Part b:</u>
We know that Jennifer used 2 Kg of carrots for muffins
This means that the amount she has left can be calculated be subtracting the amount she used for muffins from the total amount she had
<u>This means that:</u>
Jennifer has = 7 - 2 = 5 Kg left of carrots
Hope this helps :)
Okay, first thing is you want to have x and y all alone. So you need to solve the equations.
Equation 1:
5x+4y=12 (you want to subtract 5x on both sides to get y on one side and x on the other)
5x+4y=12
<u>-5x -5x
</u><u> 4y=12-5x</u> (Now if you want x and y alone you want to divide 4 on both sides)
4
y=3-1.25x Now that's you equation
Equation 2: (Basically the same steps for the 1st equation)
3x-3y=18 (Subtract 3x on both sides)
<u>-3x -3x </u><u>
</u><u>-3y=18-3x </u> (Now you divided by -3 on both sides)
-3
y=-6+x (you might notice why is there only 1 x, well because -3 divided by -3 is going to be a positive 1. You can either put a "x" or a 1x, doesn't really matter).
now since you have the two equations simplified you want to solve by doing multi-step.
3-1.25x=-6+x (Now you want to add 1.25x so you can get rid of the negative x)
<u> +1.25x +1.25x
</u> 3= -6+2.25 (Remember x alone is like 1, so it's like 1+1.25, next you want to add 6 on both sides. So you have a number and a variable all alone).
3=-6+2.25x
<u>+6 +6
</u><u>9 </u><u>= </u><u>2.25x</u> (Next you divided 2.25 on both sides)
2.25 2.25
Answer:
x =4
If your not sure, you can plug in or replace x with 4. :D
<em>I really do hope this help you understand :D </em>
<u>
</u>
It would be 2 root 2
bc it simplifies to root 2 and root 4
root 4 simplifies to 2
so its 2√2
The smallest degree that you can rotate a pentagon is 36 degrees