9) Gabriel took three math tests last semester. He scored a 91 on the first test, a
72 on the second test, and he couldn't remember what he scored on the third
test. When he saw his progress report, he saw that the average score for his
three tests was an 80. What did Carlos score on his third test?


PLEASE ANSWER ASAP I GOT UNTIL 6:30 AND I DONT GET IT

Answers

Answer 1

The average of anything can be calculated by adding up all the terms and dividing by the number of terms.

In this case,

the number of terms = 3

x = the missing test score.

(91 + 72 + x) / 3 = 80

Let's multiply both sides by 3

91 + 72 + x = 240

Combine like terms.

163 + x = 240

Subtract 163 from both sides

x = 77

Carlos scored a 77 on his third test.


Related Questions

if 10 days needed to earn 1 $ then how many days will take to earn 46$?

Answers

460days
Because 10 days : 1$
X days : 46$
So X= 10*46/1= 460days

Which of the following is/are units of velocity? Can select more than one answer A) m/s B) m/s^2 C) km/hr D) km/hr/s E) m/s/s

Answers

Answer:

The answer to your question is m/s which is the A

Answer:

m/s is the answer

Step-by-step explanation:

because

velocity = displacement/time =meter/second

that is m/s

Rosalyn paid $55.00 for 4 pizza. Each pizza cost the same amount. What was the cost of each pizza in dollars and cents?

Answers

Answer:

$13.75 is ur answer

Answer:

13.75

Step-by-step explanation:55 divided by 4

A square window has an area of 1,232 in2. (a) What is the length of 1 side of the window? Round your answer to the nearest tenth. Show all of your work. (1 point for the correct answer and 1 point for showing how you got your answer)

Answers

x = length of one side.

1,232in^2 = x^2

Take the sqrt of both sides.

35.1 in = x

The length of one side = 35.1 in

Step-by-step explanation:

We know that,

area of square = a²

→ 1,232 = a²

→ a = √1232

→ a = 35.0 in

Nearest 10th = 35.1 in

Find the equation of the line with slope = -8 and passing through (-3,2). Write the equation in point-slope form AND slope-intercept forms. Include the full equation in your answers.

Answers

Answer:

Step-by-step explanation:

y - 2 = -8(x + 3)

y - 2 -8x - 24

y = -8x - 22

Which statement is true? Question 7 options: A) |–3| = 3 and –|–4| = –4 B) |–3| = 3 and –|4| = 4 C) –|3| = 3 and |4| = 4 D) |–3| = 3 and |–4| = –4

Answers

Answer:

option A is correct

Step-by-step explanation:

mod's has a simple function -

if |x| is given it simply means that the value of "X" can't be negative

Option A is correct,  |–3| = 3 and –|–4| = –4 is true statement.

What is Number system?

A number system is defined as a system of writing to express numbers.

The absolute value or modulus of a real number x, denoted |x|, is the non-negative value of x without regard to its sign.

|-x|=x

For option A

|–3| = 3 and –|–4| = –4 is true

For option B

|–3| = 3 and –|4| = 4 is not true because –|4|  is -4.

For option C

–|3| = 3 and |4| = 4 is not true because –|3| is -3

For option D

|–3| = 3 and |–4| = –4 is not true because |-4| is 4

Hence, option A is correct,  |–3| = 3 and –|–4| = –4 is true statement.

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Which of the following expressions is equivalent to 2x + y − 4y + 8?
a) 2x − 3y + 8
b) 3x − 4y + 8
C) 2x + 3y + 8
D) 2x − 4y + 8

Answers

Answer:

a) 2x - 3y + 8

Step-by-step explanation:

Problem: 2x + y - 4y + 8

Solve: y - 4y

Put it back into the expression: 2x - 3y + 8

I agree. If y is one for example 1-4 is -3

Find the value of x.

Answers

Answer:

x + 43 = 180

x = 180 -43 = 137

Step-by-step explanation:

Solve the following system of equations. {y=−2x−92x+3y=−3 Write your answer as an ordered pair in the form (x,y).

Answers

Answer:

  (x, y) = (-6, 3)

Step-by-step explanation:

Maybe you want to solve ...

y = -2x -92x +3y = -3

Use the first equation to substitute for y in the second:

  2x +3(-2x -9) = -3

  2x -6x -27 = -3

  -4x = 24 . . . . . . . . . add 27, simplify

  x = -6 . . . . . . . . . . . divide by -4

  y = -2(-6) -9 = 12 -9 = 3

The solution is (x, y) = (-6, 3).

The set of odd numbers greater than 19 ? Infinite or finite

Answers

Answer: Infinite

Odd numbers are of the form 2n+1, where n is an integer

Solving 2n+1 > 19 leads to n > 9. There are infinitely many integers that make the inequality n > 9 to be true.

A line passes through (0, 2) and has a slope of 3. Which function's graph is parallel to this line?
A. f(x) = 2 O
B. f(x) = 3 O
C. f(x) = 2x O
D. f(x) = 3x o TUL earch​

Answers

ANSWER IS B 30

Step-by-step explanation:

The function's graph is parallel to this line is 3x.

What is equation of a straight line ?

The general equation of a straight line is y = mx + c, where m is the gradient or slope, and y = c is the value where the line cuts the y-axis. This number c is called as intercept.

From the question,

Parallel lines have same slope.

The slope given, m =3.

The function's graph is parallel to this line is 3x.

Hence the required answer is f(x)= 3x.

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The midpoint of JK
is M(6, 3). One endpoint is J(14, 9). Find the coordinates of endpoint K.

Answers

(x1 + x2 / 2) , (y1 + y2 /2)
so just sub in ur values
(6 + 14 /2) and (3+9/2)
so first add before dividing by2
(20/2) and (12/2)
then divide by 2
10 and 6
so endpoint k is
(10,6)

Find PUR, given the following sets:
P = {b, d, f, g}
Q = {a, b, c, d]
R = {c, e, f, g}
S = {a, d. g}

Answers

Answer:

={b,c,d,e,f,g}

Step-by-step explanation:

={b,c,d,e,f,g}

Answer:

PUR= b, d, f, g, c, e

Step-by-step explanation:

To fid the answer you unite the sets together. When uniting the sets you only write the letter once even if it appears in both sets.

So when we combine p and r the answer we get is:

PUR= b, d, f, g, c, e

HOPE IT HELPED

Pattern in this sequence
1,1+3,1+3+5,1+3+5+7, ...

Answers

Answer:25

Step-by-step explanation:

1 , 1+3 ,1+3+5 ,1+3+5+7,_

1 , 4 , 9 , 16 ,_

From 1 to 4 there is a difference of 3

From 4 to 9 there is a difference of 5

From 9 to 16 there is a difference of 7

From 16 to x there should be a difference of 9 because all the differences mentioned above are all odd numbers so that is the pattern in the sequence

16+9=25

Graph the line with slope 8 and y-intercept −8.

Answers

To create the slope 8, you would have to do the rise over run:8/1. which means u go up 8 units and to the side one unit and you keep doing that. And since the y-intercept is -8, then you start your first point at -8 and continue to go up.

The graph is attached below:

What is graph?

Graphing basic functions like linear functions and quadratic functions is easy. The basic idea of graphing functions is

Identifying the shape if possible. For example, if it is a linear function of the form f(x) = ax + b, then its graph would be a line; if it is a quadratic function of the form f(x) = ax2 + bx + c, then its a parabola.

finding some points on it, by substituting some random values of x and finding the corresponding values of y by substituting each value into the function.

For graphing quadratic function also, we can find some random points on it. But this may not give a perfect U-shaped curve. This is because, to get a perfect U-shaped curve, we need where the curve is turning. i.e., we have to find its vertex. After finding the vertex, we can find two or three random points on each side of the vertex and they would help in graphing the function.

Given:

slope= 8

y- intercept = -8

So, the equation can be

y= mx+ c

y= 8x - 8

Learn more about graph here:

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Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes. To determine the unit price for each item, his daughter sets up and solves the system of equations shown.

answers: 1,3,5

Answers

Answer:

p=1.50$ per pound

n=3.00$ per pound

6x1.5=9

3x3=9

9+9=18

Answer:

1,3,5

Step-by-step explanation:

go ahead report my answer because brainly is always reporting answers even if they are original and correct. undelete my answers brainly thats not fair. each one of us helps get the answers i matter too.

3÷1/3+1=

PLEASE HELP!!!!!

Answers

Answer:

9+1=10 following bodmas rule

Rita is developing an equation that will represent the same proportional relationship as the graph.

Answers

Yes I can help you show me the equation

It's d. The quotient of the coordinates will be a coeffficient in the equation

Drag the tiles to the correct boxes to complete the pairs. Match the angle measurements in radians with equivalent measurements less than or equal to 360°.

Answers

Answer:

60° =19π/3

288°=22π/9

315°=23π/4

80°=18π/5

Step-by-step explanation:

The question is incomplete. Find the completed question in the attachment.

We are to convert the radian values to the corresponding degrees that are less than 360°

Since π rad = 180°

For 23π/4:

If π rad = 180°

23π/4 = x

Cross multiply:

πx = 23π/4 × 180

x = 23π/4π × 180

x = (23×180)/4

x = 1035°

Next is to scale down 1035° to a degree less than 360 and to do this we will be subtracting multiples of 360° from the value gotten.

x = 1035 - (360×2)

x = 1035 - 720

x = 315°

Hence 23π/4 = 315°

For 18π/5:

If π rad = 180°

18π/5 = y

Cross multiply:

πy = 18π/5 × 180

y = 18π/5π × 180

y = (18×180)/5

y = 648°

In scaling down:

y = 648°-360°

y = 288°

Hence 18π/5 = 288°

For 22π/9:

If π rad = 180°

22π/9 = t

Cross multiply:

πt = 22π/9 × 180

t = 22π/9π × 180

t = (22×180)/9

t = 440°

In scaling down:

t = 440-360°

t = 80°

Hence 22π/9 = 80°

For 19π/3:

If π rad = 180°

19π/3 = y

Cross multiply:

πy = 19π/3 × 180

y = 19π/3π × 180

y = (19×180)/3

y = 3420/3

y = 1140°

In scaling down:

y = 1140°-(3×360)°

y = 1140-1080

y = 60°

Hence 19π/3 = 60°

Answer:

the other person was almost right except they mixed up 2 of them. this is the right answer, i hope this helps :)

60° =19π/3

288°=18π/5

315°=23π/4

80°=22π/9

have a great day :))

I need help and it’s due today

Answers

Answer: same bruh

Step-by-step explanation:

1) Given the following problem: I am thinking of a number. If you double the number and add 10, the result is 22.

What is the number?
a) Write a detailed explanation of the solution of the problem using the problem solving strategy: Work Backwards

Answers

Answer:

the number is (((6))))

Answer:

The answer is 6

Step-by-step explanation:

What wanna start out with finding the difference by subtracting 10 from 22. This would give you the difference of 12. Since its 'double the number', we are going to find the quotient of 12 / 2 = 6. You will then end up with the answer 6.

Find all excluded values for the expression. That is, find all values of x for which the expression is undefined.

x+6/x² - 6x-27

Answers

Answer:

The values of x for the expression is undefined is -3 or 9

Step-by-step explanation:

Given function,

[tex]f(x) = \frac{X +\ 6}{X^2 - 6X-27}[/tex]

The values of x for which the expression is undefined is obtained when the denominator is equal to zero, from the expression it is given by;

x² - 6x - 27 = 0

Factorize the equation

x² + 3x - 9x - 27 = 0

x (x + 3) -9(x + 3) = 0

(x + 3)(x - 9) = 0

x = -3   or  x = 9

Therefore, the values of x for the expression is undefined is -3 or 9


g the order of operations.
3(4) + 4(5)

Answers

Answer:

16

Step-by-step explanation:

3(4) + 4 (5)

  4+5+9

  3+4=7

    7+9

     16

need help asap!!! ill maek you brainliest.if anyones good at angles with proofs

Answers

The answer should be 58 because angles 2 and 3 make a right angle... 90-32=58

An airplane flying with the wind takes 2 hours to travel a distance
of 600 miles. The return trip takes 3 hours flying against the
wind. What is the speed of the airplane in still air and how fast is
the wind blowing?

Answers

the airplane travels 200 mph

Find the zeros of the function f(x) = -1.6x2 + 18x – 47 to the nearest
hundredth.

Answers

Answer:

Step-by-step explanation:

When babies are born, their lengths are recorded. Maddy is 18 1/2 inches. Her twin, Alex, is 20 3/4 inches. How much longer than Maddy is Alex?m

Answers

Answer:

2 1/4 inches longer

THE CORRECT ANSWER IS 2 1/4. hope this help

what is one way you can easily tell that 3/6 is not a simplified fraction

Answers

you know that 6 is divisible by 3/ 3 is a factor of 6 (3•2=6) so you could further simply 3/6 using a common factor, more specifically their Greatest Common Factor also known as the GCF

Answer:

3/6 can be simplified

Step-by-step explanation:

3 divided by 3

6 divided by 3

it comes out to be 1/2

2x + y = 10
x - 2y = -5
if (x,y) is the solution to the system of equations above, what is the value of 3x - y?

Answers

Answer:

3x - y = 5

Step-by-step explanation:

2x + y = 10  | ×2

x - 2y = -5

4x + 2y = 20

x - 2y = -5

add

4x + x + 2y - 2y = 20 - 5

5x = 15

x = 15 : 5

x = 3

replace x

4(3) + 2y = 20

12 + 2y = 20

2y = 8

y = 8 : 2

y = 4

3x - y =

= 3(3) - 4

= 9 - 4

= 5

The length of the line?

Answers

Answer:c

Step-by-step explanation:

Answer:

[tex]\sqrt{136}[/tex]

Step-by-step explanation:

Use the Pythagorean Theorem!

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