Answer:
(y+10)(y+1)
Step-by-step explanation:
y2+10y+y+10
y(y+10)+1(y+10)
(y+10)(y+1)
700 because 48 is under 50 which makes it have to round down to the nearest hundred
Answer:
2 times larger
Step-by-step explanation:
Ralph's pen is 91 feet long
ruths is 45.5
Easily makes 91
Answer: 2.4 pounds of the type of nut that sells for $3.00/lb and 4.8 pounds of the type of nut that sells for $5.40/lb would be needed.
Step-by-step explanation:
Let x represent the number of pounds of the type of nut that sells for $3.00/lb that you would need.
Let y represent the number of pounds of the type of nut that sells for $5.40/lb that you would need.
You would like to have 7.2 lbs of a nut mixture. It means that
x + y = 7.2
The mixture would sell for $4.60/lb. It means that the cost of the mixture would be
4.6 × 7.2 = $33.12
This means that
3x + 5.4y = 33.12- - - - - - - - - 1
Substituting x = 7.2 - y Intl equation 1, it becomes
3(7.2 - y) + 5.4y = 33.12
21.6 - 3y + 5.4y = 33.12
- 3y + 5.4y = 33.12 - 21.6
2.4y = 11.52
y = 11.52/2.4
y = 4.8
x = 7.2 - y = 7.2 - 4.8
x = 2.4
Answer:
Step-by-step explanation:
1 Equation is given, so solving for "x" would mean an expression for "x", where
x = SOMETHING
First, we need to isolate x, so we need to take "8y" to the other side, we have:
Now, since we don't have "x" isolated yet, we need to take out the 2, so we will divide both sides by 2 to get x isolated. Shown below:
So, x has this expression
