He donated $285 to the salvation army.
The first thing to do is solve for "x". The equation would be {2(3x+60)}+5x+100=550.
Then, you would multiply 2 with 3x and 60. Your new equation would be 5x+120+5x+100=550.
Next, you would combine like terms. This means to combine the terms that are similar. In this case, it would be the whole numbers and the numbers with the variable. Your new equation would be 10x+220=550.
After that, you subtract 220 on both sides of the equal sign. This makes the equation 10x=330.
Then, you divide ten on both sides of the equal sign, giving you x=33.
The second things to is replace the x with 33. The amount for the salvation army is 5x+120. Replacing 33 with x, your final equation will be 165+120=$285.
Have a great day!!! :)
Adding all vakus in data set and divide by the number of values in the data set
Answer:
is the inequality that reflect the relationship.
Step-by-step explanation:
Given:
Charge for rental = $100
Additional charge = $ 35
Minimum amount that can be spent = $280
To Find:
equations or inequalities that reflect the relationship = ?
Solution:
Let x be the minimum number of hours
then the charge will be
100 + (number of hours)(additional cost per hour)
That is
100 + 35x
Now the minimum charge amount is $280 So, The charge can be 280 or more than 280
7x^2 - 16x - 8 = 0
using the quadratic formula x = [ -(-16)+/- sqrt((-16^2 - 4*7-8] / 2*7
= (16 +/1 sqrt 480) / 14
= 2.71, -0.42 to nearest hundredth
Answer:
X=9
Step-by-step explanation:
x=-4+13=9
