Sal has earned the following 3 scores on his math test 15, 18, and 16 out of 20 points. He wants to make sure that his average test score is 17. What does he need to get on the last test?

Answers

Answer 1

Answer:

He needs to score a 19

Step-by-step explanation:

First, I found the mean of the three test scores. The mean was below 17 so I knew he needed a grade higher than the ones he already has. So I went up from 18. So my first equation was 15+18+16+19=68. then I divided by 4 which gives you a mean of 17. (Mean=average)

Answer 2
He would need to score a 19 in order to get 17 as an average.

Related Questions

Brad used the formula to find the distance in miles, d, he was from a stroke of lightning. In the formula, n is the number of seconds that have elapsed between seeing the lightning and hearing the thunder. How far away was Brad from the lightning if 30 seconds elapsed between Brad seeing the lightning and hearing the thunder?

Answers

Answer:

10 seconds

Step-by-step explanation:

using the formula we can see that since 30 seconds have passed we divide this by 3 to get 10.

Therefore  the answer is 10 seconds

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Move options to the blanks to define the transformations that can be done on C1 to show that it is similar to circle C2.

Answers

Answer:

Circle C1 can be dilated at its center by a scale factor of 1/2. Then the image can be translated left 4 and down 6. This will map circle C1 onto circle C2 and prove they are similar.

You have 8 4/5 total cups of lemonade, and you want to share it with your friends. Each friend gets 1/10 of a cup to drink. How many friends do you have?​

Answers

Answer:

88 friends

Step-by-step explanation:

Assuming all of the lemonade is drank, you have 88 friends. 8 4/5= 8 8/10. 8= 80/10.80/10+8/10=88/10. Including yourself you have 87 friends, 88 if not.

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Calculate the volume of the following figure.

26 units3
25 units3
27 units3
24 units3

Answers

Answer:

24 units

Step-by-step explanation:

The way to find the volume is to multiply all of the dimesnions. The dimensions are 2, 3, and 4. 2 x 3 = 6. 6 x 4 = 24.

24 units 4 *3*2*4 as you multiply use
Pemdas to break down the answer

HELP PLEASE ASPAPP EEEEEEEEE

Answers

1/4 x 1/2 = 1/8

1/4 = the chance of getting m
1/2 = the chance of getting tails

Answer:

the answer is D

Step-by-step explanation:

pls give brainlist

Find the Surface Area of the Pyramid. Round to the NEAREST TENTH.

Answers

Answer:

465.75 or 465.8 rounded to the nearest tenth

Step-by-step explanation:

You would multiply 16.2 and 14.5 and divide by 2 to get 117.45. You then multiply by 3 for the 3 sides to get 352.35. Lastly, to find the area of the base you would need to multiply 16.2 and 14 and divide it by two to get 113.4. Add it with the 3 sides and you get 465.75.

A bowl has 3 red beads and 7 blue beads. Two beads are selected at random one at a time. First a red bead is drawn and placed on a table. Next a blue bead is drawn.

What is the probability of this event?

Drag and drop the answers into the boxes to complete the sentences.

Answers

The probability that first a red bead is drawn and next a blue bead is drawn is 7/30,and both events are dependent

How to determine the probability?

The distribution of the beads are:

Red = 3

Blue = 7

Total = 10

The probability of selecting the red bead first is:

P(Red) = 3/10

When the red bead is selected, the number of beads becomes 9

So, the probability of selecting a blue bead is

P(Blue) = 7/9

The probability of the event is then calculated using:

P = 3/10 * 7/9

Evaluate

P = 7/30

Hence, the probability of the event is 7/30

Read more about probability at:

https://brainly.com/question/25638875

#SPJ1

Unit: Rational Number Operations Review

A spool with 18 feet of ribbon will be cut into 8-inch segments. How many 8-inch segments can be cut from the spool of ribbon?

Answers

27 Pieces

Explanation: 1 feet = 12 Inches… So take 12 inches and multiply by 18 and you get 216 then divide by 8 and you get 27.

Answer:

27

Step-by-step explanation:

If each person in a city of 150,00 throws away 12kg of trash every week, how many metric tons of trash does the city produce per year? (There are 52 weeks in a year and 1,000 kg in a metric ton.)

Answers

Answer:

1,800 metric tons

Step-by-step explanation:

multiply 12 by the number of people then divide

In need this quickly

Answers

Answer:

are there any other pieces to this problem?

find the value of x when y equals -7.
2(3x - 7) = 9y​

Answers

Hey there!


2(3x - 7) = 9y

2(3x - 7) = 9(-7)

2(3x - 7) = -63

2(3x) + 2(-7) = -63

6x - 14 = -63

ADD 14 to BOTH SIDES

6x - 14 + 13 = -63 + 13

SIMPLIFY IT!
6x = -63 + 13

6x = -49

DIVISION 6 to BOTH SIDES

6x/6 = -49/6

SIMPLIFY!
x = -49/6

x = -8 1/6


Therefore, the answer should be:

x = -8 1/6 (or x = -49/6 [EITHER OF THOSE SHOULD BE YOUR RESULT BECAUSE THEY ARE BOTH EQUAL TO EACH OTHER])


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

(pls help my teacher wants me to pass this!) which is the graph of this line segment after it is translated - 5 units along the x-axis and 3 units along the y-axis? (answer choices in picture)

Answers

Answer:

3-th picture

Step-by-step explanation:

i think 3-th picture)

Answer: C

Step-by-step explanation:

HELLPPPPPPPPPPPPPPPPPPP

Answers

Answer:

It's probably B, how far did you walk today?

Step-by-step explanation:

The chart is talking about distances so the answer choice talking about distance is probably the way to go.

I think it’s B. How far did you walk today?

Help this is due today (づ ̄ 3 ̄)づ I will Mark brainiest ⚆_⚆

Answers

You can see the fountain is made of 2 semicircles. You can apply the same area formula to both. The fourth circle has a fourth of the area of a circle. Add all 3 areas to get the fountain's area. Since the circumference of a circle is it's perimeter, find the circumference of all of the circles and add them up. THE sums is the fountain's perimeter.

Answer:

The fountain is made of 2 semicircles. You can apply the same area formula to both. The fourth circle has a fourth of the area of a circle. Add all 3 areas to get the fountain's area. Since the circumference of a circle is it's perimeter, find the circumference of all of the circles and add them up. The sums is the fountain's perimeter.

Step-by-step explanation:

(ノ◕ヮ◕)ノ*:・゚✧ (cute stuf)

Rectangle A′B′C′D′ is a dilation of rectangle ABCD. What is the scale factor?
Enter your answer in the box.
Note: Images may not be drawn to scale.

Answers

Answer:

They were multiplied by a factor of 4

Step-by-step explanation:

2 times 4 is 8, and 4 times 4 is 16 simple. please rate brainliest.

I literally forgot how to do this

Answers

Answer:

23.383838383883838383838

Some help please 25 points

Answers

17 doesn’t belong. It’s a prime number and the only number with an odd digit in the tenths place. Let me know if this helps please!
I also think it’s 17

Which quadrilateral makes this statement true?


Quadrilateral ABCD ≅ _____

Answers

Answer:

B

Step-by-step explanation:

They are literally the same quadrilateral. Same side lengths and angle measures.

Answer:

is B

Step-by-step explanation:

How do i solve an algebra question?

Answers

Answer:

1. Distribute

2. Collect like terms

3. Get all your variables onto one side

4. Undo all adding/subtracting with the inverse


5. Undo all mutilplying/divison with the inverse

Step-by-step explanation:


1. Distribute
2. Collect like terms
3. Get all your variables onto one side
4. Undo all adding/subtracting with the
inverse
5. Undo all mutilplying/divison with the
inverse

4. Each pail of plaster covers 90 square feet of ceiling. What is the least number of pails of plaster you would need to buy to cover the ceiling of a square room with walls 14 feet long?
5 pails
6 pails
4 pails
3 pails

Answers

Answer:

3 pails

Step-by-step explanation:

The square room's base is 14 x 14 = 196

You need to fill the whole room so you might get extra

so... 196 / 90 = 2.177777778

which means you will need  3 and you will have extra

Answer:

3 pails!

Step-by-step explanation:

The area of the ceiling:

A = 14² = 196 ft²

We need plaster to cover 196 ft².

196 : 90 = 2.17778

-lukelaws

hope I helped if I did please mark me brainliest if I got it wrong sorry!

Lots of points for whoever answers these- there are around 10 questions to each part, this is part 1. The questions are just marked as even numbers for part 1.

Answers

Ex 2) -27 + 28w
Ex 4) -13m + 21
Ex 6) 9(3x + y)
Ex 8) -6(3a + 5)

Ex 10) c - 17= 3
Ex 12) n= -27
Ex 14) v= 5
Ex 16)
equation: 24= 1/4x
Answer: x= 96% decimal form .96

Ex 18)
a) 7w+ 6 = 9w+2
b)
You sold 62 magazine subscriptions and your friend sold 74. Therefore your friend sold 12 more subscriptions than you after 8 weeks.
Ex 20)
Equation: 1/3a = 5
Answer: 15 years old

Simplify Negative 3 over 2 divided by 9 over 6.

Answers

Answer:

B. -1

Step-by-step explanation:

9/-3 = -3

6/2 = 3

-3/3 = -1.

Hope this helps!

Answer:

-1

Step-by-step explanation:

-3/2 ÷ 9/6

Copy dot flip

-3/2 * 6/9

Multiply

-18/18

-1

PLEASE HELP I NEED ANSWERS NOW AND I WILL MARK YOUR ANSWER BRAINLIEST IF IT IS CORRECT
Step 2: Using proportional relationships
You are traveling by car to New York City. The map you will use for your journey is below.
a) What is the scale factor on the map? (1 point)
b) What is the approximate distance from Chicago to New York City? Use a proportional relationship to solve the problem. Show your work. (2 points)
c) What is the approximate distance from Denver to Chicago? Use a proportional relationship to solve the problem. Show your work. (2 points)
d) You plan to begin your journey in San Jose and make stops in Denver and Chicago on your way to New York City. Your father says that your journey will be about 3,000 miles. Is this a close estimation of the distance? Explain your reasoning. (2 points)

Answers

Answer:

What is the approximate distance from Denver to Chicago? Use a proportional relationship to solve the problem.

Using proportional relationships You are traveling by car to New York City. The map you will use for your journey is below.

Step-by-step explanation:

help me im tired of posting

Answers

Stop posting this. It's very rude to continue posting this. One post was enough.

Maybe if you put more points people would actually answer, stop posting again and again

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

Answers

Answer:

1/6

Step-by-step explanation:

i dont know if this is correct

Please help me with this question

Answers

2/9

5/10 *4/9=2/9

ask if you have any more questions

Answer:

2/9

Step-by-step explanation:

there are 5 blue, 4 balck, and 1 green

5+4+1=10

5 blue so 5/10 = 1/2

there are 9 shirts left 4 blue

4/9

1/2 x 4/9 = 4/18 = 2/9

Please help me!!!!!!!!!!!!!!!!!!!!

Answers

26.25 divided by 3 is 8.75 so the answer is B, just divide the about of money by the number of hours and you have your answer

Find the measure of angle x in the figure below:

A) 35
B) 47
C) 51
D) 62

Answers

Answer:

The value of y = 62°

and x = 50°

Step-by-step explanation:

=> 57° + y + 61° = 180°

=> 118° + y = 180°

=> y = 180° - 118

=> y = 62°

Now ,

x° + y° + 67° = 180° { sum of angles of a triangle is 180° }

=> x° + 62° + 68° = 180°

=> x + 130° = 180°

=> x = 180° - 130°

=> x = 50°

The answer is d I see someone already put the explanation

Look at the image below

What is the area of the triangle?

Answers

answer is 63 because 6 times 21 is 126 and that divided by 2 is 63

Answer:

area is 126

Step-by-step explanation:

it’s 126 because in this equation “ area” is like x x x so 21x6 = 126 which is the answer.

A half cylinder has a radius of 4ft. It is 10ft tall. What is the volume of the Sector?
Use 3.14 for π.


(I've been trying to figure this problem out for an hour now and still can't get the answer right. A simple easy step-by-step would help a lot!)

Answers

Pi=3.14 I needed some points
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