Lamont keeps tracks of his math grades by recording them in a table. He wants to keep an average of 90, so he also lists the amount that each grade is above or below 90.

Answers

Answer 1

Answer:

a. -11, 97, 6, 87

b. he didn't get over it

Step-by-step explanation:

a. The table shows you the grade in the upper row and in the lower row difference between upper row and 90. So to calculate lower row you need to do X-90 where X is upper row value. To calculate upper row you need to do X+90 where X is lower row value

so you get column 3:

79-90=-11

column 4:

90+7=97

column 5:

96-90=6

column 6:

-3+90=90-3=87

b. To answer this question we would need to simply sum all the values from the Above/Below row for all 6 columns:

-7+4+(-11)+7+6+(-3)= -7+4-11+7+6-3=-4. Since the value is negative it means it's below 90

Related Questions

Mariam took a taxi from her house to the airport. The taxi company charged a pick-
up fee of $2.90 plus $1.25 per mile. The total fare was $6.65, not including the tip.
Write and solve an equation which can be used to determine m, the number of miles
in the taxi ride.

Answers

The equation illustrates that the number of miles will be 3 miles.

How to compute the value?

The taxi company charged a pick- up fee of $2.90 plus $1.25 per mile.

Let the number of miles be m.

Therefore, this will be:

2.90 + (1.25 × m) = 6.65

2.90 + 1.25m = 6.65

Collect like terms

1.25m = 6.65 - 2.90

1.25m = 3.75

m = 3.75/1.25

m = 3

The number of miles is 3 miles.

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Solve inequality.
t+8 ≥ 19

Answers

To solve the inequality, subtract 8 from both sides. The solution is t ≥ 11 or [11, ∞)

Tips to solve linear inequalities:

Isolate the variable on one side by using subtraction or addition. Subtraction and addition will not change the inequality.Use division or multiplication to find the solution. Multiplication and division by a positive number will not the inequality. However, if we multiply or divide both sides with a negative number, we need to flip the inequality direction.

Interval notation is often used for the solution(s). Recall the differences between a bracket [ or ], and a parenthesis ( or ). A bracket means the endpoint is included in the solution while a parenthesis means the endpoint is not included in the solution. Remember, infinity ∞ always use a parenthesis.

Example: x ≥ 2 can be written as [2, ∞), while

x > 0 is written as (2, ∞)

The given problem:

t+8 ≥ 19

Subtract 8 from both sides. Subtracting a number from both sides will not change the inequality. Hence,

t+8 - 8 ≥ 19 - 8

t ≥ 11

Using the interval notation, the solution is [11, ∞)

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The square of a certain negative number is equal to five more than one-half of that number. What is the number?
-2
-5/2
-1/2

Answers

Answer:

-2

Step-by-step explanation:

How do you divide 8 out of 5

Answers

Answer:

if you mean 8 divided by 5 then use long division which will result in 1 with a remainder or 3 or 1.6

Answer:

8/5=1.6

Step-by-step explanation:

There's no step by step for explaining this answer. Or nothing that I can think of

What is the most specific name for the figure?
A(0,-2a)
B(-3a,-2a)
C(-3a,a)
D(0,a)

A. Parallelogram
B. Rectangle
C. Square
D. Rhombus

Answers

The most specific name for the figure in the image is a Rectangle. Option C

This is further explained below.

What is the most specific name for the figure?

Generally, A Rectangle is regarded as a regular quadrilateral under the tenets of Euclidean geometry since it has four sides of equal length amongst opposite sides

It may also be thought of as a rectangle with two adjacent sides that are equal in length.

The word coordinate has the same pronunciation as the word o-ordinate. These expressions may denote having the same status or rank, having to do with coordination, or having to do with an intersection of indices when employed as adjectives.

In conclusion, A square is the most accurate description of the shape that can be seen in the picture. Alternative B

Answers

Answer: 13 (simplified)

Step-by-step explanation: 9 + 4= 13, minus 9 equals 4

Answer: Question: x-9=4

Step-by-step explanation: X is 13

40, 24, 72/5
Find the 10th term

Answers

Answer:

0.24186

Step-by-step explanation:

40 x (3/5) = 24

24 x (3/5) = 72/5 or 14.4

Keep multiplying 3/5 or 0.6

= 0.24186

0.24186 is going to be your answer.

The latitude of the U.S. Embassy is 48° north of the equator. If the diameter of the earth is 7920 miles, how far is the U.S.
Embassy from the equator?

Answers

Answer:

use air math personal tutors to help you and help you show your work!

Step-by-step explanation:

what is the value of x of triangle srq?

Answers

The value of "x" in the given figure and question is 20 units.

As per the question statement, We are given a figure in which we are supposed to find the value of x.

Before solving the question, if we observe the figure, we can conclude that this question will include the concepts of right angled triangle or specifically Pythagoras Theorem, which states that

[tex]Perpendicular^{2} + base^{2} = hypotenuse^{2}[/tex] where perpendicular, base and hypotenuse are the three sides of the right angled triangle.

In Triangle RTQ

using Pythagoras Theorem

[tex]RQ^{2} = TQ^{2} +TR^{2} \\RQ=x\\x^{2} = 16^{2} + TR^{2} \\TR^{2} = x^{2} -16^{2}[/tex]

Now considering triangle SRT

using Pythagoras Theorem

[tex]SR^{2} = RT^{2} + ST^{2} \\SR^{2} = (x^{2} -16^{2}) +9^{2}\\[/tex]

Now considering triangle RSQ

using Pythagoras Theorem

[tex]SQ^{2} = SR^{2} +RQ^{2} \\(9+16)^{2} = SR^{2} + RQ^{2} \\(9+16)^{2} = x^{2} -7^{2}+x^{2} \\ (9+16)^{2} =2x^{2} -7^{2} \\25^{2}+7^{2} = 2x^{2}[/tex]

[tex]2x^{2} =674[/tex]

[tex]x^{2} =337\\x=\sqrt{337} \\x=18.357[/tex]

Therefore x = 18.357 approx 20 units.

Pythagoras Theorem: The well-known Pythagorean Theorem states that the square on the hypotenuse of a right triangle equals the sum of the squares on its legs.

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Bro please help ima fail

Answers

In the picture there are 10 question.

1. Identify the 1st 10 perfect squares?

The 1st 10 perfect squares are 1,4,9,16,25,36,49,64,81 and 100.

[tex]1^{2} =1\\2^{2} =4\\3^{2} =9\\4^{2} =16\\5^{2} =25\\6^{2} =36\\7^{2} =49\\8^{2} =64\\9^{2} =81\\10^{2} =100\\[/tex]

2. What does it mean for a number to a perfect square? provide an example.

By squaring a whole number or an integer, one can create perfect squares. Let's examine an illustration to get the idea behind perfect squares. We can use a set of four and a second set of six marbles for this. Let's set the marbles in order.

See the figure(1).

With four marbles, we can create a square with two rows and two marbles in each row. We can create a rectangle with 6 marbles that has 2 rows with 3 marbles in each row. It signifies that 4 = 2[tex]\times[/tex]2 and 6 = 3[tex]\times[/tex]2 mathematically. Let's concentrate just on the square-shaped numerals. Here, 4 = 2 × 2 = [tex]2^{2}[/tex].

Square A is smaller then Square B. Square B is smaller then Square C.

The 3 Square side length are3,4.2 and[tex]5\frac{1}{2}[/tex].

complete the equation each of the square shown.

3. Square A=Area=[tex]3^{2}[/tex]=9

4. Square B= Area=[tex]4.2^{2}[/tex]=17.64

5. Square C=Area= [tex]\frac{5}{2} =\frac{25}{4}[/tex]

Find the length of the side of the square for each area is given

6.81 square inches

Area=81=[tex]s^{2}[/tex]

s=9

7. [tex]\frac{4}{25} cm[/tex]

area=[tex]\frac{4}{25} cm[/tex]=[tex]s^{2}[/tex]

s=[tex]\frac{2}{5}[/tex]

8.0.49 Square unit

area=0.49=[tex]s^{2}[/tex]

s=0.7

The graph represent the equation [tex]y=x^{2}[/tex].

9.complete the table of values to find corresponding y-values.

if x =-1.4