Kim got 82%, 75%, and 74% on the first 3 tests.
What grade does she need on the 4th test to have an average of 80% on all 4 tests?
A. 77%
B. 80%
O c. 85%
D. 89%
E. 100%

Answers

Answer 1

Answer:

C

Step-by-step explanation:

Add all percentages together, then divide by how many you added.

Answer 2

Answer:

C

Step-by-step explanation:


Related Questions

Translate X(2,3) Y(0,0) Z(4,4) 2 units right and 3 units up

Answers

Answer:

X(4, 6) Y(2, 3) Z(6, 7)

Step-by-step explanation:

If you want to translate something right on a number line, then you are essentially adding to it. Thus you would just add 2 to each of the x values of the coordinates. The same applies with translating something up, all that really means is that you are adding to each of the y values so all you have to do is add 3 to each of the y values and you get your answer.

Answer:

X:(4,6), Y:(2,3), Z:(6,7)

Step-by-step explanation:

2 units right implies a change on the x-axis, meaning you add 2 units to the x of the coordinate pair (x, y). 3 units up implies a change in Y, you apply the same rule and add 3 to the Y of the pair.

2 units right (add 2 to x pair coordinate)

X: (2,3) --> (4,3)

Y: (0,0) --> (2,0)

Z:(4,4) --> (6,4)

and 3 units up (add 3 to y pair coordinate)

X: (4,3) --> (4,6)

Y: (2,0) --> (2,3)

Z: (6,4) --> (6,7)

Helllllllp
Simplify the expression 43 + 2(3 − 2).

14
16
66
68

Answers

Answer:

68

Step-by-step explanation:

Answer:

The answer is 46...i cant find that answer in the choices though

Step-by-step explanation:

In PEMDAS we can see that we have parentheses first so we solve whatever is in the parentheses. which 3-2 = 1....so it should look like this

43 + 2 + 1

Which equals 46

hope this helps. have a good day

The graph of a linear function is often a parabola.
True or False

Answers

False




.......
.........

A linear function has a graph as a straight line so the given statement is False.

What is a linear function?

A straight line on the coordinate plane is represented by a linear function.

A linear function always has the same and constant slope.

The formula for a linear function is f(x) = ax + b, where a and b are real values.

A linear function is given by

y = mx + c where m is the slope and constant.

Since it is constant it means it should be a straight line in coordinate geometry.

Therefore a linear function always makes a straight line, not a parabola.

Hence "A linear function has a graph as a straight line so the given statement is False".

For more about the linear function,

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Which of the following is NOT a monomial?
O
x
O -
2x-3
O
155

Answers

Answer:

2x -3

Step-by-step explanation:

Answer:

2x-3 isn't monomial. hope u like it

solve the system by graphing

x+3y=-3
x-3y=-3​

Answers

Answer:

This one

1

_

3

1

-_

3

Step-by-step explanation:

Can you show me the steps involved in solving this question?

Answers

the Great answer to your problem is A

I need help on this please:)

Answers

Answer:

Step-by-step explanation:

∠x=180-114

   =66°

∠p=114 (alt.ext.∠)

Answer:

Although it is not stated... I am assuming line "m" and line "n" are parallel to each other. That's the only way we can solve the problem..

PLEASE HELP OMG

just put this equation into y = mx + b

7x + 8y = -12

* my answer was y = -7/8x - 12/8
(is there supposed to be two fractions? did i do it right?)

Answers

y = mx + b

7x + 8y = -12
Subtract 7x from both sides
8y = -7x - 12
Divide each side by 8
y = -7/8x - 12/8
Simplify
y = -7/8x - 3/2

So besides simplifying, if I’m doing this correctly, it should be correct.

4^{3x+2}=
4
3x+2
=
\,\,2^{2x-4}
2
2x−4

Answers

Answer:

Dont know

Step-by-step explanation:

Sorryyyyyyyyyyyyyyyyyyyyy

Choose the solution to this inequality.
72≥b+95

Answers

Answer:

B. [tex]b \leq 1\frac{7}{10}[/tex]

Step-by-step explanation:

Isolate b in order to solve the inequality. Subtract [tex]\frac{9}{5}[/tex] on both sides of the inequality, then simplify. (You will need to convert the fractions in order to subtract and simplify further.)

[tex]\frac{7}{2} \geq b + \frac{9}{5} \\\frac{7}{2} -\frac{9}{5} \geq b + \frac{9}{5} -\frac{9}{5} \\\frac{35}{10} -\frac{18}{10}\geq b\\\frac{17}{10} \geq b\\1\frac{7}{10} \geq b[/tex]

Thus, [tex]b \leq 1\frac{7}{10}[/tex].

Answer:

b

Step-by-step explanation:

Perform the indicated operation.
f (x) = x2 − 1 g(x) = 3x + 4 Find f (9) − g(9)

Answers

Answer:

f(9)=17//g(9)=31

Step-by-step explanation:

substitute- (9)2-1= 18-1=17

substitute and solve- 3(9)+4=27+4=31

Hope this helps

Can someone help me with this problem. I have to show my work. Thank you.

Answers

there will be 4 kids in each group and 5 kids remaining
Take 29 divided by 6 = 4 with 5 left over so it will be 4 groups of 6 and 1 group of 5

tan^2 30 +tan ^2 45+tan^2 60​

Answers

13/3 = 4.333

Step-by-step explanation:

tan 30 = 1/√3tan 45 = 1tan 60 = √3

= tan² 30 + tan² 45 + tan² 60 = ( 1 /√3 )² + ( 1 )² + ( √3 )² = ( 1 / 3 ) + ( 1 ) + ( 3 ) = ( 1 + 3 + 9 ) ÷ 3 = 13 ÷ 3 = 4.333

MARK ME AS BRAINLIST

Which costs more per issue, 18-issue subscription for $40.50 or a 12-issue subscription for $33.60?

Answers

Answer:

12-issue subscription

Step-by-step explanation:

18-issue sub = $40.50 ÷ 18 = $2.25/issue

12-issue sub = $33.60 ÷ 12 = $2.8/tissue

=> The 12-issue subscription costs more per issue (2.8 > 2.25)

Answer:

so you would divide the cost by the issue

the 18 issue is $2.25 per issue

the 12 issue is $2.80 per issue

the 12 issue costs more

pleade help and show work​

Answers

9514 1404 393

Answer:

  11) x = 9

  12) x = 9

Step-by-step explanation:

11) Corresponding segments are proportional, so ...

  x/6 = 12/8

  x = 6(12)/8 . . . multiply by 6

  x = 9

__

12) Similar triangle relationships show you the geometric mean relationship that applies in this case.

  long side/short side = x/3 = 27/x

  x² = 3·27 . . . . . . cross multiply

  x = √(3·27) . . . . geometric mean relationship

  x = 9

The cost c to rent a car for d days is shown in the
table. Which equation represents this function?


Answers

Answer:

i would help you but there is no table so, sorry

Step-by-step explanation:

am goblin gimme ye points

What is the rate of change of the proportion y=9x

Answers

9 is the correct answerNine is the slope and rate of change in that equation.Please let me know if I am wrong.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

The rate of change of the proportion y = 9x is 9.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

y = 4x  +2 is an equation.

x + 2x + 3 = 4 is an equation.

We have,

y = 9x

The rate of change of this equation can be calculated by finding its differentiation.

Now,

y = 9x

Differentiating with respect to x we get,

dy/dx = 9dx/dx

dy/dx = 9

Thus,

The rate of change of the proportion y = 9x is 9.

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5-1(b+2) =

3+4(3m+2n) =

Answers

hope this helps! feel free to clarify

Answer:

5-1(b+2) = 5-b-2=3-b

3+4(3m+2n) =3 +12m +8n

PLEASE HELP!!!!
If angles P and Q are complementary, which statement about the two angles is true?

P and Q are opposite facing.

P and Q add up to 90°.

P and Q are always adjacent.

P and Q sum to 180°.

Answers

P and Q add up to 90 degrees

Answer:

P and Q add up to 90°.

Step-by-step explanation:

y = 2x + 7
y=2X+7
O one solution
O two solutions
O no solution
O infinitely many solutions

Answers

Answer:

Infinitely many solutions

Step-by-step explanation:

The lines overlap one another and this leads to an infinite amount of solutions.

Answer:

one solution is the answer

Totally out of points
Need triangle geom help !

Answers

Answer:

B. ∠BAC

Step-by-step explanation:

The angle opposite the largest side has the largest angle.

given teach trig ratio as a fraction in simplest form:sin(N)

Answers

Answer:

Choice #1: sq rt 3/2

Step-by-step explanation:

cos N=8/PN

PN=16

tan N=PO/8

PO=13.86

sin N=13.86/16=0.866=sq rt 3/2

for what value of m is equivalent to..

Answers

Answer:

A

Step-by-step explanation:

because math

Step by step explanation

What's the equation of a line that passes through point (–1, 3) with a slope of 1?

Answers

Answer:

y = 1x + 4

OR

y = x + 4

Step-by-step explanation:

High School sold tickets to the winter dance for $3.50 in advanced and $5.00 at the door. If 115 people attended the dance and High School made $470.00, how many students bought their tickets in advance and how many students bought their tickets at the door? (Only an algebraic solution will be accepted)

Answers

Answer: 3.5a+5b=470 and a+b=115

Step-by-step explanation:

A weight of 6 lb stretches a spring a distance of 12 in. Find the constant k for the spring.

Answers

Answer:

Let F = the force (6 lbs) and x be the distance that the spring is stretched (12 inches).

F = kx

6 lb = k*(12 in.)

6/12 = k = 0.5 lb/in.

A weight of 6 lb stretches a spring a distance of 12 in. The constant k for the spring will be  0.5 lb/in.

How to obtain acceleration from force applied on an object?

If the object is of mass m kg and force applied on it is of F N in the direction of motion, then the acceleration of that object is evaluated as:

a=  F/m

Given; A weight of 6 lb stretches a spring a distance of 12 in.

Also,

Let F = the force and x be the distance that the spring is stretched

F = kx

6 lb = k*(12 in.)

6/12 = k = 0.5 lb/in.

Therefore, the constant k for the spring will be  0.5 lb/in.

Learn more about spring here;

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Help I will be marking brainliest!

A. 65.99
B. 70.19
C. 52
D. 65.52

Answers

Answer:

65.992

Step-by-step explanation:

LM/PL = RN/QR

LM / 113 = 73/ 125

LM =(73/125) * 113

Step-by-step explanation:

LM =1/2 of 113

56.50

so according to to me it is D) 65.99

brainliest to whoever can answer questions correctly ​

Answers

Answer:

v ~ 32.72

Hope that helps!

I need help pleaseeeeee

Answers

Given:

[tex]\Delta MAT\cong \Delta MHT[/tex] and [tex]m\angle 2=82^\circ[/tex].

To find:

Whether [tex]m\angle 1=47^\circ[/tex] is possible or not.

Solution:

We have,

[tex]\Delta MAT\cong \Delta MHT[/tex]

[tex]\angle AMT\cong \angle HMT[/tex]                      (CPCTC)

[tex]m\angle 3=m\angle 8[/tex]              ...(i)

And,

[tex]m\angle 1=m\angle 8[/tex]              ...(ii)        (Vertically opposite angles)

From (i) and (ii), we get

[tex]m\angle 1=m\angle 3[/tex]              ...(iii)

Now,

[tex]m\angle 1+m\angle 2+m\angle 3=180^\circ[/tex]          (Linear pair)

[tex]m\angle 1+82^\circ+m\angle 1=180^\circ[/tex]             (Using (iii))

[tex]2m\angle 1=180^\circ-82^\circ[/tex]

[tex]2m\angle 1=98^\circ[/tex]

Divide both sides by 2.

[tex]m\angle 1=\dfrac{98^\circ}{2}[/tex]

[tex]m\angle 1=49^\circ[/tex]

The measure of angle 1 is 49 degrees so it cannot be equal to 47 degrees.

Therefore, the required answer is "no", the given statement [tex]m\angle 1=47^\circ[/tex] is not possible.

Salesman Scott received $2,792.79 for selling a property. If the gross commission was 6.5 % of the sale price, the listing salesman received 12% of the gross commission and Scott received 45% of the balance, how much did the property sell for?

Answers

Answer: The property sold for $5,870.41.

Step-by-step explanation:

Let x be the selling price of the property.

Then, gross commission = 6.5% of x = 0.065x

listing salesman received = 12% of ( 0.065x)  = 0.12 (0.065x) = 0.0078 x

Balance = x - ( 0.065x) -  (0.0078 x)

= (1+0.065-0.0078)x

= 1.0572x

Scott received = 45% of (1.0572x)

=0.45 (1.0572x)

= 0.47574x

Now, [tex]0.47574x=2,792.79[/tex]

[tex]\Rightarrow\ x=\dfrac{2792.79}{0.47574}\\\\\Rightarrow\ x=5870.41[/tex]

Hence, the property sold for $5,870.41.

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