2. Kelsea needs a test average of at least 90 to get an "A-" this marking period in math. Her three test gradesare 87,91 and 86. What score must she get on her fourth test to receive at least an A- ?
Define variable:
Equation:
Solution:
can someone check this please :)
Answers
Answer:
Equation: 87 + 91 + 86 + x = 360
Solution: 264 + x = 360
x = 360 - 264
x = 96
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
Now you can understand if the previous work you did is correct
Related Questions
I need this ASAP!!Which of the following best describes the first step in solving the system below using elimination?2x - 4y = 9x+3 = -4yA. solve the second equation for XB. rearrange the second equation to read x+4y = -3C. rearrange the second equation to read x + 4y =D. add the equations together
Solve and then use estimation to make sure your answer is reasonable. Kyle can read 22 pages of his book in an hour. Kyle read for 114.5 hours last summer. How many pages did Kyle read last summer?
How many seconds ,4:30-5:05
Please help me solve !!!
Answers
Step 1 : Note down the given ratio from the questions.
Step 2 : Find the greatest common factor, and divide the numerator and denominator by that value.
Answer: 3:7
Answers
Answer:
List the factors Count the number of factors Prime number have exactly two factors Composite numbers have two or more factors
Step-by-step explanation:
Answers
Answer:
3.6 hours.
Step-by-step explanation:
We work in terms of rates per hour:
1/9 + 1/6 = 1/x where x is the time for 2 pipes working together.
Multiply through by the LCD of 6, 9 and x ( which is 18x) :-
2x + 3x = 18
5x = 18
x = 3.6 hours.
Answers
Answer:
2 1/2
Step-by-step explanation:
- 5/8 / 1/4
- 5/8 x 4/1
- cross cancel 4 and 8 to get 5/2 x 1/1
- answer 5/2 or 2 1/2
5/8 divided by 1/4 equals 5/8 times 4/1
that equals 5/2 which becomes 2 1/2
I hoped that helped you!
have a nice day!
1. What is the smallest number that m x n could be?
2. What is the largest number that m - n could be?
Answers
So m can be 11, 12, 13, 14, 15,16, 17, 18 or 19
2 < n < 10
So n can be 3, 4, 5, 6, 7, 8 or 9
Q1. What is the smallest number that m times n could be? That would be the product (the "times") of the two smallest number in each range, so 11 times 3 = 33.
Q2. What is the largest number that m - n could be? Here we want to make the difference between the two numbers the largest. So we take the largest value for m which is 19 and the smallest number for n, which is 3.
19 - 3 = 16.
Answers
The volume of the given pyramid with a squarebase whose side measures 6 inches and the altitude of the pyramid measures 12 inches is 144 cubic inches. The value is obtained by applying the formula for the volume of the pyramid as .
The volume of the pyramid:
The volume of the pyramid is given by the formula:
Where,
is the area of the base of the pyramid and
h is the height or altitude of the pyramid
Calculating the Volume:
As shown in the diagram,
The pyramid has a squarebase whose side measures 6 inches and the altitude of the pyramid is 12 inches
Thus,
Area of the square base,
⇒
⇒ sq. inches
Height of the pyramid h = 12 inches
On substituting the values in the formula,
⇒ × 36 × 12
⇒ 4 × 36
⇒ 144 cubic inches
Therefore, the volume of the given pyramid is 144 cubic inches.
Learn more about the volume of the pyramid here:
#SPJ2
Answer:
144 in³
Step-by-step explanation:
The volume of a pyramid of base area A and height h is
V = (1/3)(A)(h).
Here,
V = (1/3)(6 in)²(12 in) = 144 in³