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Alja [10]
3 years ago
12

Ms. Carey grades 4 tests during her lunch. She grades 1/3 of the remainder after school. If she syill5has 16 test to grade after

school, how many test are there?
​
Mathematics
1 answer:
enot [183]3 years ago
3 0

Answer: 24 tests

Step-by-step explanation:

Ms. Carey graded 1/3 of the tests and still had 16 tests to go.

This means that the 16 tests represent the remaining proportion of the total number of tests:

= 1 - 1/3

= 2/3

2/3 of the total is equal to 16 tests. Assuming the total is x, the expression would be:

2/3x = 16

x = 16 ÷ 2/3

x = 16 * 3/2

x = 24 tests

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Amaya used these steps to solve the equation 8x+4=9+4(2x−1). Which choice describes the meaning of her result, 4=5?
timofeeve [1]

Answer:

No value of x makes the equation true.

Step-by-step explanation:

Here are the choices which are missing in the question:

a) Amaya made a mistake because 4 is not equal to 5

b) No value of x make the equation true.

c) All value of x make the equation true.

d) The solution is x= 4 or 5

Given equation is 8x+4=9+4(2x-1)

Now, solving the equation:

8x+4=9+4(2x-1)

distributing 4 with both 2x and -1

⇒8x+4= 9+8x-4

⇒8x+4= 5+8x

Subtracting both side by 8x

∴ 4=5

The result indicate that equation has the same result and x has no value.

4 0
3 years ago
Read 2 more answers
ˣ⁺⁶⁄ₓ = ¼<br><br> Can someone explain to me how to solve this?
mario62 [17]

The solution to the given equation is x = -8

<h3>Solving Linear Equations</h3>

From the question, we are to determine value of x in the given equation

The given equation is

(x + 6)/x = 1/4

To solve the given equation, we would solve for the unknown variable x

(x + 6)/x = 1/4

First, multiply both sides of the equation by x

x + 6 = x × 1/4

x + 6 = x/4

Now, multiply both sides of the equation by 4

4(x + 6) = 4 × x/4

4x + 24 = x

Now, subtract x from both sides of the equation

4x - x + 24 = x - x

3x + 24 = 0

Subtract 24 from both sides of the equation

3x + 24 - 24 = 0 - 24

3x + 0 = -24

3x = -24

Divide both sides of the of the equation by 3

3x/3 = -24/3

x = -8

Hence, the solution to the given equation is x = -8

Learn more on Solving Linear Equations here: brainly.com/question/85186

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4 0
1 year ago
The system of equations shown below is graphed on a coordinate grid:
salantis [7]

3y+x=4

2y-x=6

Solve x+3y=4 for x

Add -3y to both sides

x+3y-3y=4-3y

x=-3y+4

Substitute -3y+4 for x in -x+2y=6

-x+2y=6

-(-3y+4)+2y=6

Simplify both sides of the equation

5y-4=6

Add 4 to both sides

5y-4+4=6+4

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y=2

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x=(-3)(2)+4

x= -6+4

x= -2

Answer : x=-2 and y=2

The answer is A

 it is (-2,2) and lies on both lines


I hope that's help  !

6 0
3 years ago
Three paintings are shaped like an 8 ft sq, a 7ft by 4 ft rectangle, and a triangle with 6 ft base and a height of 7 ft. If thos
Advocard [28]
The square has area 8*8=64, the rectangle has area 7*4=28, and the triangle has area 7*6/2=21.  Their sum is 64+28+21=113.
3 0
3 years ago
Which one is the right one?
irina [24]

Answer:The last question

Step-by-step explanation:

6 0
3 years ago
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