Answer:
-3x+13
Step-by-step explanation:
Group like terms
=-3x+8+5
Add the numbers 8+5=13
-3x+13
Answer: 9
Step-by-step explanation: The reason that students get intimidated
by word problems is they try to look at all the information at once.
The best way to approach a word problem
is to break it down sentence by sentence.
In this problem, let's look at the first part of the sentence.
We know that six less than three times a number is 21.
Let's call the number x.
So we know that six less than three times a number means 3x - 6.
A common mistake would be for students to put 6 - 3x.
However, the word "less than" switches the order around.
So we know that six less than three times a number is 21.
So we can write this as 3x - 6 = 21.
Now we have an equation and we can solve for x.
First add 6 to both sides to get 3x = 27.
Now divide both sides by 3 to get x = 9.
So our answer to this word problem is 9.
Answer:
I will need to buy 22.5 pounds of turkey and pay $23.63
Step-by-step explanation:
Proportions
Each person is planned to eat 2 x 3/8 pound servings of turkey for thanksgiving dinner. This means each person will eat
pounds of turkey.
There are going to be 15 people at the dinner, thus the total turkey needed is:
The turkey costs $1.05 per pound, thus the total cost is
22.5*$1.05 = $23.63
I will need to buy 22.5 pounds of turkey and pay $23.63
2.8y + 6 + 0.2y = 5y – 14
Answer:
Step-by-step explanation:
Simplifying
2.8y + 6 + 0.2y = 5y + -14
Reorder the terms:
6 + 2.8y + 0.2y = 5y + -14
Combine like terms: 2.8y + 0.2y = 3y
6 + 3y = 5y + -14
Reorder the terms:
6 + 3y = -14 + 5y
Solving
6 + 3y = -14 + 5y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-5y' to each side of the equation.
6 + 3y + -5y = -14 + 5y + -5y
Combine like terms: 3y + -5y = -2y
6 + -2y = -14 + 5y + -5y
Combine like terms: 5y + -5y = 0
6 + -2y = -14 + 0
6 + -2y = -14
Add '-6' to each side of the equation.
6 + -6 + -2y = -14 + -6
Combine like terms: 6 + -6 = 0
0 + -2y = -14 + -6
-2y = -14 + -6
Combine like terms: -14 + -6 = -20
-2y = -20
Divide each side by '-2'.
y = 10
Simplifying
y = 10
Answer:
y= 11
Step-by-step explanation:
we have:
2.8y + 6 + 0.2y = 5y – 14
or 3y + 6 = 5y -14
and 3y + 6 - 6 = 5y -16 -6
and 3y = 5y -22
and 3y - 5y = -5y +5y -22
so -2y = -22
finally y = -22/-2
or y=11
Hope that useful for you.
o 44
O 4y
o 8
o gy
Answer:
B is the answer of the question
Answer:
The answer is 4y8
Step-by-step explanation: