Sam will take four science tests this quarter. Her scores on three of the tests are shown below

Test 1: 83%

Test 2: 91%

Test 3: 88%

Test 4: ?

What does Sam need to score on the fourth test to ensure that she will have an average of 90% for all four tests

[tex]\text {Hi! Let's Solve this Equation!}[/tex]

[tex]\text {\underline {The First Step is to Flip the Equation}}[/tex]

[tex]\text {Before: 16-x=-2}\\\text {After: x+16=-2}[/tex]

[tex]\text {\underline {The Next Step is to Subtract 16}}[/tex]

[tex]\text {x+16-16=-2-16}[/tex]

[tex]\text {Your New Problem Is: x=-18}[/tex]

[tex]\text {\underline {The Final Step is to Divide -1}}[/tex]

[tex]\text {x/-1=-18/-1}[/tex]

[tex]\text {Your Answer Would Be:}[/tex]

[tex]\fbox {x=18}[/tex]

[tex]\text {Best of Luck!}[/tex]

Answer:

18

Step-by-step explanation:

16 - x = -2

-x = -2 - 16

-x = -18

x = 18

Hopefully this answer helps you :)

Answer:

the answer is D.

Step-by-step explanation:

hope it helps :)

Answer:

3

Step-by-step explanation:

slope = rise/run

Start at an easy to read point, such as (0, -2).

Go up 3 and right 1.

That is a rise of 3 and a run of 1.

slope = rise/run = 3/1 = 3

Answer: 3

Answer:

3

Step-by-step explanation:

Count how many points it goes up and then over to cross a square through the corner. In this case it goes up 3 over one. That simplifies to be just 3. Hope that made sense.

Answer: y=−1/2x+2

Step-by-step explanation: From x+2y=4

first, we can subtract x from both sides

and get 2y=−x+4

then, we can divide both sides by 2

y=−1/2x+2

Answer:

y=1/2x-2

Step-by-step explanation:

Hope this helps

(x) (y)

0 7

7/3 0

Draw the line using two points or the slope and the y-intercept.

Slope: −3

Y-intercept: (0.7)

I hope I did this right :)

Answer:

True

Step-by-step explanation:

Hope this helped, have an AMAZING day!!

Answer:

y=4x+3

Step-by-step explanation:

since its parallel they have the same slope

y=mx+b

(11)=(4)(2)+b

11=8+b

then subtract 8 on both sides

11=8+b

-8=-8+b

3=b

then y=4x+3

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

Explanation:

The last term is 9 and the middle coefficient is -6.

We need to find two numbers that multiply to the last term, and also add to the middle coefficient.

Through trial and error, you should find the two numbers -3 and -3

-3 plus -3 = -6

-3 times -3 = 9

Those two values directly lead to the factorization (x-3)(x-3)

We can FOIL out (x-3)(x-3) to get x^2-6x+9 to help confirm the answer. Distribution works as well. The box method is a visual way to do it also.

Answer:

12

Step-by-step explanation:

the firt three terms of an arithmetic

Answer:

60 outfits

Step-by-step explanation:

5 shirts x 3 pants x 4 shoes = 60 outfits (containing 1 shirt, 1 pant, 1 shoe)

This is pretty difficult to explain, but this is basically how you do it when you want to see how many combinations of something there are for multiple different things. Basically, for each of the 5 shirts, there are 3 different pants, and for each of the pants there are 4 shoes. So each pant has 4 shoes, then multiply that by 3 for the 3 pants for each shirt. After that, multiply by 5 for each shirt in the outfits.

Using the Fundamental Counting Theorem, it is found that 350 meals are possible.

It is a theorem that states that if there are n things, each with [tex]n_1, n_2, \cdots, n_n[/tex] ways to be done, each thing independent of the other, the number of ways they can be done is:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

Considering the menu described in the problem, we have that:

[tex]n_1 = 5, n_2 = 10, n_3 = 7[/tex].

Hence the number of meals possible is given by:

N = 5 x 10 x 7 = 350.

More can be learned about the Fundamental Counting Theorem at https://brainly.com/question/24314866

#SPJ1

Answer:

B

Step-by-step explanation:

Answer:

The amount of medicine in milligrams, y, in a human body that starts with 400 milligrams and decreases by 17% every hour, x

Step-by-step explanation:

I did it on ttm

Answer:

x = 1.5

Step-by-step explanation:

4x + 17 = 23

     -17    -17

4x = 6

Divide both sides by 4.

1.5 = x

Hope that helps and have a great day!

Answer:

x=3/2

Step-by-step explanation:

Subtract 17 on both sides, then divide by 4. You get 3/2 or 1 and 1/2!

hope this helped !!

Answer:

true

Step-by-step explanation:

it says that it is a triangle.

hope this helped!

Answer:

169.i2

Step-by-step explanation:

i hope this helps

Answer:

169.83

Step-by-step explanation:

$185.00 - 8% = $157.25 + 8%= $169.83

Answer: the correct answer is 18,847.76184947253

Answer:

1.884776184E1284776184947.2528110465

Step-by-step explanation:

I dont have one

Answer:

The wait  time is unusual because the probability value obtained is less than 2 standard deviation above the mean

Step-by-step explanation:

From the question we are told that

     The average wait time is  [tex]\mu = 55 \ min[/tex]

     The standard deviation is  [tex]\sigma = 33 \ min[/tex]

Generally the probability of  waiting over 1212 minutes is

     [tex]P(X > 1212) = P(\frac{X - \mu}{ \sigma } > \frac{ 1212 - 55}{ 33} )[/tex]

     [tex]P(X > 1212) = P(\frac{X - \mu}{ \sigma } > \frac{ 1212 - 55}{ 33} )[/tex]

[tex]\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )[/tex]

So

       [tex]P(X > 1212) = P(Z > 35 )[/tex]

From z table  the probability of  (Z  >  35 ) is  

        [tex]P(Z > 35 ) = 0[/tex]

Hence

    [tex]P(X > 1212) = 0[/tex]

The  time is unusual because the probability value obtained is less than 2 standard deviation above the mean

Answer:

$104.90

Step-by-step explanation:

Did the math for you.

Have a good day!

Answer:

104.90 or 105$ rounded

Step-by-step explanation:

you do 20.98 (how much they cost) x 5 (how much he bought) = 104.90 (total cost.

Hope this helps :P

Answer:

0

Step-by-step explanation:

adding a positive and negative number that is the same like in the example (2+-2) you would get 0

Answer:

54 :/

Step-by-step explanation:

Well if mary ate 9 raisins and Mimi ate 6 times as much you just have to do:

9 x 6 = 54

y = 9 x 6?

Answer:

a. an=18-6n

b. an=0.7+2.8n

Step-by-step explanation:

a. 12-6(n-1)

     12-6n+6

     18-6n

b.3.5+2.8(n-1)

    3.5+2.8n-2.8

    0.7+2.8n  

Answer:

n= -4

Step-by-step explanation:

-20n-28=-13n

-20n=-13n+28

-20n+13n=28

-7n=28

n=-4

Answer:

*facepalm* 7 lol thats an oldie > u <

Step-by-step explanation:

7 - s = even

Answer: seven

Step-by-step explanation:the number 7 is odd but then you take away the s and it becomes even.

Answer:

-6x²

36

Step-by-step explanation:

1 / (1 + 6x²) = 1 / (1 − r)

Therefore, r = -6x².

The third term, r², is 36x⁴.

9514 1404 393

Answer:

Step-by-step explanation:

There are vertical discontinuities in the function at x=-2, x=2, and x=4. When looking at limits, we find the function values to be different either side of those discontinuities at x = -2 and at x = 2. Thus, limits do not exist at those points (x = {-2, 2}).

At x=4, the discontinuity is in the function definition, not in the values left or right of that point. Hence the limit does exist at x=4, but the function is not continuous there.

Answer:

Answer:

bhkutvld hgotrbjvlgh njbv

kllsnvdn kvkdxc

Answer:

it is 1)

Step-by-step explanation:

 73.458

x 0.39

________

661122

2203740

Answer:

he or she will need to use 2/8 cups of onions for 1 cup of tomatoes to be used

Step-by-step explanation:

The chef need 1/4 cups of onion for 1 cup of tomato.

Fractions are used to represent smaller pieces (or parts) of a whole.

Given that, a chef uses 1/2 cup of tomatoes for every 1/8 cup of onions to make salsa

So, for 1/2 → 1/8

Multiplying each side by 2 to get 1 cup of tomato,

1 → 2/8 = 1/4

Hence, the chef need 1/4 cups of onion for 1 cup of tomato.

For more references on fractions, click;

https://brainly.com/question/10354322

#SPJ2