Answer:
<u>Equation: 87 + 91 + 86 + x = 360</u>
<u>Solution: 264 + x = 360</u>
<u>x = 360 - 264</u>
<u>x = 96</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
First three Kelsea's test grades : 87, 91 and 86
2. What score must she get on her fourth test to receive at least an A- ?
Define variable: x that represents the grade needed by Kelsea on her fourth test to receive at least an A-
Equation: 87 + 91 + 86 + x = 360
Solution: 264 + x = 360
x = 360 - 264
x = 96
<u>Now you can understand if the previous work you did is correct</u>
Answer:
-3
Step-by-step explanation:
Answer:
1- 3/4
2- 5/6
3- 2/3
4- 7/10
Step-by-step explanation:
1= a
2=b
3=c
4=d
__________
For this case, we have the total of painters is 16, so to determine what percentage is painting the interior of the house, we make a rule of three:
16 ---------------> 100%
4 -----------------> x
Where "x" represents the% of painters who paint the interior of the house.
Thus, 25% of painters are painting the interior of the house.
Answer:
25%
Answer: -4
Step-by-step explanation:
Given the value of x, you must plug it into the equation ( f(x) is basically y )
(2)^2 - 4(2)
4 - 8 = -4
