Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her first 2 test grades were 81 and 86. What does Lucy need to make on her third test in order to have an exact average of 85 and be exempt from her exam?

Answer:

I don't understand what you are asking, please ask the question with more info

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Answer:

cc

Step-by-step explanation:

c

Answer:

2/9 4/18 12/54

4/9 8/18 24/54

5/9 10/18 30/54

7/9 14/18       42/54

Step-by-step explanation:

Answer:

4 : 18 and 6 : 27

Step-by-step explanation:

To obtain equivalent ratios, multiply or divide both parts of the ratio by the same quantity.

Multiplying by 2

2 : 9 = 2(2) : 9(2) = 4 : 18

Multiplying by 3

2 : 9 = 2(3) : 9(3) = 6 : 27 , etc

Answer:

ok so add the two X's together

-2x+3x=1x

then at 6 and 7= 13

so answer is 1x+13

Step-by-step explanation:

Answer:

x +13

Step-by-step explanation:

3x+6-2x+7

Combine like terms

3x-2x   +6+7

x +13

Answer:

1200

Step-by-step

$360= 30%

$12= 1%

12*100= 1200

Check

1200/0.3=360

Answer:

Step-by-step explanation:

call x the mother deer, y the baby deer, we have x = 2y

x + y = 4,5 ---> x = 3, y = 3/2

Answer:

2.25

Step-by-step explanation:

4.5 / 2

Answer:

The correct answer is -21 degrees.

Step-by-step explanation:

We know that the original temperature was -12 degrees.  If the temperature drops another 9 degrees, this means that it is getting colder or the temperature is getting lower; this lets us know that we should subtract 9 from the original temperature.  This is modeled below:

-12 - 9

Now, we simply have to perform the subtraction to get:

-21 degrees

Hope this helps!

Answer:

x = 2

Step-by-step explanation:

Since, points D, E and F are collinear.

Therefore,

DF = DE + EF

28 = 3x + 8 + 4x + 6

28 = 7x + 14

28- 14 = 7x

14 = 7x

[tex] \frac{14}{7} = x \\ 2 = x \\ \huge \red { \boxed{x = 2}}[/tex]

Answer:

a = 4 b = 5

Step-by-step explanation:

8a + 12b = 92......eqn 1

6a - 4b = 4......eqn 2

multiply eqn 2 by 3

18a - 12b = 12.....eqn 2

add eqn 1 and 2 to eliminate b

26a = 104

a = 4

put a = 4 into eqn 2

18(4) - 12b = 12

72 - 12b = 12

72 - 12 = 12b

60 = 12b

5 = b

Answer:

m=−37

Step-by-step explanation:

34 = -3 + -1m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add 'm' to each side of the equation.

34 + m = -3 + -1m + m

Combine like terms: -1m + m = 0

34 + m = -3 + 0

34 + m = -3

Add '-34' to each side of the equation.

34 + -34 + m = -3 + -34

Combine like terms: 34 + -34 = 0

0 + m = -3 + -34

m = -3 + -34

Combine like terms: -3 + -34 = -37

m = -37

Answer:

Sample Response:

The negative sign outside the parentheses represents –1. Distribute the –1 to everything inside the parenthesis. Use the addition property of equality first to add 3 to both sides. Then use the division property of equality to divide both sides by -1.

Answer:

x≥ -11/9

Step-by-step explanation:

HOPE THIS HELPS!!!!! :)

<3333333333

Answer:

  x = (3√2)/2

Step-by-step explanation:

In the isosceles right triangle the side lengths have the ratio ...

  1 : 1 : √2

This means the short leg (x) is 1/√2 times the length of the hypotenuse. You want the ratio with a rational denominator, so you need to multiply numerator and denominator by √2.

  [tex]x=3\cdot\dfrac{1}{\sqrt{2}}=3\cdot\dfrac{\sqrt{2}}{(\sqrt{2})^2}\\\\\boxed{x=\dfrac{3}{2}\sqrt{2}}[/tex]

Answer:

The question has an infinite solution

Answer:

b is the answer

Step-by-step explanation:

on edg

A logical operation is a particular symbol or term that joins two or more informational expressions. The correct option is B.

A logical operation is a particular symbol or term that joins two or more informational expressions. It is most commonly used to determine if a connection between two sentences is true or untrue.

Given that  p ↔ q represents the statement "He is wearing a coat if and only if the temperature is below 30°F.” Therefore, event p is He is wearing a coat, while event q represents the temperature below 30°F.

Now, In p^q, '^' represents the 'and' operator. Therefore, p^q represents He is wearing a coat and the temperature is below 30°F.

Hence, the correct option is B.

Learn more about Logical operator here:

https://brainly.com/question/13092292

#SPJ2

Answer: length=28, width=20

Step-by-step explanation:

Let x=width, then length=x+8

x(x+8)=560

x²+8x=560

x²+8x-560=0

(x-20)(x+28)=0

x=20 or x=-28 (rej) since a width can't be negative

20+8=28

Hope this helps!! :)

Please let me know if you have any question

Answer:

79

Step-by-step explanation:

The difference between 79 and 22 is 57. 79 is THE number. All you have to do is add 22 and 57 because the answer you get would ALWAYS have one of the numbers added as the difference.

Answer:

CA+AB=CB

Step-by-step explanation:

CA + AB = CB

The lines CA and AB will sum up to CB.

Collinear points are the points that lie on the same straight line or in a single line. If two or more than two points lie on a line close to or far from each other, then they are said to be collinear, in Euclidean geometry.

Given here: CA and AB along the same line CB also A,B,C are collinear also ∠DAB+∠CAD=180 as they are adjacent angles and thus are supplementary. Therefore CA+AB=CB

Hence, The lines CA and AB will sum up to CB.

Learn more about the lines here:

https://brainly.com/question/11806229

#SPJ2

=====================================================

Explanation:

Line PR is tangent to the circle at point T. Angle PTO is 90 degrees because of this.

Angle TON is 124 degrees. Triangle TON is isosceles (since we have two sides of the triangle TO and ON equal to the radius). Therefore angles OTN and ONT are equal base angles. Call these x for now

-------

Since 3 angles of any triangle always add to 180, we can say...

x+x+124 = 180

2x+124 = 180

2x = 180-124

2x = 56

x = 28

Therefore,

angle PTN = (angle PTO) + (angle OTN)

angle PTN = 90 + 28

angle PTN = 118

Answer:

d is the answer

Answer:

I think the

basketball = 2

football = 4

soccer ball = 0

Step-by-step explanation:

Why because

2+2 = 4 and + =

2×2 = 4 and × =

4+0 = 4 and +⚽ =

Which means that even if basketball is getting added or multiplied it will get the same answer and 2 will gets same answer (4) when it's multiplied or added. In conclusion = 2 = 4 and ⚽ = 0

Answer:

The answer is

Step-by-step explanation:

To solve the equation we must first find h-¹(x)

To find h-¹(x) equate h(x) to y

That's

Next interchange the terms

x becomes y and y becomes x

That's

Make y the subject

Take logarithm to base 2 to both sides

That's

But

So we have

Now we can solve the equation

We have

Convert the logarithm into exponential form using the fact that

So we have

But

So we have the final answer as

Hope this helps you

Answer:

256x8y8256+2x8y8+56x3y7+28x7y2+126x5y4+x8+1048x7y+1932x6y2+2240x5y3+2310x4y4+2296x3y5+1932x2y6+1048xy7+y8+8x6y+56xy3+28x2y+8xy

Step-by-step explanation:

Answer:

Juniors Currently Working: 14/51 = 0.27; Not Working but Have Had a Job: 22/51 = 0.43; Never Had a Job: 15/51 = 0.29.

Seniors Currently Working: 30/80 = 0.38; Not Working but Have Had a Job: 40/80 = 0.5; Never Had a Job: 10//80 = 0.13.

There is an association between employment status and grade level. Depending on whether the student is a senior or junior impact the likelihood of their employment status. For instance, more seniors are likely to be currently working than juniors.

2 tripled is 6

2 x 3 = 6

Hope this helps!  : )

Answer:

1x3=3

2x3=6

3x3=9

4x3=12

5x3=15

6x3=18

7x3=21

8x3=24

Answer:

-8

Step-by-step explanation:

3x-9 = -33

3x= -33+9

3x= -24

x= -24/3

x= -8

hope this helps

The following equation for x. 3x-9=-33 has the valueof x as -8. Thus, option B is correct.

A formula that expresses the connection between two words on each side of an indication. A calculation with an integer multiple is referred to as an equation. Algebra is widely used in equations. In performing calculations but unsure of the precise amount, algebra is utilized.

The equation that is presented is

3x-9 = -33

3x= -33+9

Simplifying the equation

3x= -24

x= -24/3

The value of x is derived as

x= -8

Therefore, option B is the correct option.

Learn more about equations, here:

https://brainly.com/question/10413253

#SPJ2

Answer:

The answer is #1

Step-by-step explanation:

If it orginially (30) (97) thats the answer you want, check out the other questions.

number one is the only one  to the original therefore

30 (100-3) = (30) (97).

Answer:

x = 0

Step-by-step explanation:

Given

2 + 9x = 3(4x + 1) - 1 ← distribute and simplify right side

2 + 9x = 12x + 3 - 1

2 + 9x = 12x + 2 ( subtract 9x from both sides )

2 = 3x + 2 ( subtract 2 from both sides )

0 = 3x ( divide both sides by 3 )

x = 0

Answer:

A) Values in the solution set satisfy both inequalities.

B) It is the intersection of two solution sets.

Step-by-step explanation:

We denote intersection as AND.

[tex]A \cap B \implies \text{A and B}[/tex]

Take those sets. The intersection is what A and B share.