Mathematics Middle School

Jack has scored the following on the last 3 tests...

72, 47, 71

What would he have to score on the 4th test so that his overall test score average is 72?
a. 95
b. 98
c. 103
d. 97

Answers

Answer 1

Answer:

B or 98

Step-by-step explanation:

72+47+71=190

190+98=288

288÷4=72

Answer 2

Answer:

B. 98

Step-by-step explanation:

If you add all the numbers including the 98 and divided by 4, you get 72 which is the exact amount that he needs.

Related Questions

HELP ME PLSSSS
The Wheel Shop sells other kinds of vehicles. There are bicycles and go-carts in a different room of the shop. Each bicycle has only one seat and each go-cart has only one seat. There are a total of 21 seats and 54 wheels in that room. How many are bicycles and how many are go-carts? Explain how you figured it out.

Answers

substitute for x and y in wheels equation
2*15 + 4*6 = 54
30 + 24 = 54
54 = 54 = ok
-----
answer is:
number of bicycles is 15
number of go karts is 6
-----

47. Calculate the value of c in the triangle below.

Answers

Using the Pythagorean theorem

C = sqrt( 9^2 + 40^2)

C = sqrr(81 + 1600)

C = sqrt(1681)

C = 41 cm

Answer:

41 cm

Step-by-step explanation:

c = a^2 + b^2 = 9^2 + 40^2 = 41

What formula do we use to find area of a circle?
Group of answer choices

A=πr2

A=3.14d

A=πd

Answers

Answer:

Your answer is A.

Step-by-step explanation:

When finding the area, you multiply π (3.14) and the radius (r). Then, you square the product (x2).

So, it is A = πr2

Hope this helps! :)

A! Pi is obvi 3.14, times the radius times 2! other person probably explained it better but hope this helps!

Can u plase help its just box plots !!! if you do tysm and remeber your loved

Answers

Answer:

2. Class A

3. Class B

4. 22

5. $375

Step-by-step explanation:

If you need explanations comment

Liam scored 22 out of 30 marks in Algebra, 35 out of 40 marks in science, and 89 out of 100 marks in mathematics. In which subject his percentage of his marks best?

Answers

Answer:

maths

Step-by-step explanation:

we have found out 89 out of 100.

35 out of 40 = 87.5 out of 100 (100÷ 40 = 2.5 | 2.5 x 35)

as we repeat the same formula again

22 out of 30 goes somewhere near 73.

which means his highest marks were in math!

his best percentage is 89/100

Nick had 14 jelly beans in a bag. His mother put a handful of jelly beans in the bag. When Nick counts his jelly beans, he discovers he now has 28 of them. Which of the following equations will help Nick solve for the number of jelly beans, j, that his mom put in the bag?

14j = 28
14 + 28 = j
14 + j = 28
j − 14 = 28

Answers

Answer:

14 + j = 28

Step-by-step explanation:

I hope this helps :)

Here’s the link to the answer!


Lol jk
14+j=28

Find the x-intercept of the function y=−0.2x+0.55

Answers

Answer:

2.75

Step-by-step explanation:

y=0

−0.2x+0.55=0

0.2x=0.55

x=2.75

Answer:

x=-2.75

Step-by-step explanation:

Plug y=0 into the equation and solve for x:

y=-0.2x+0.55

0=-0.2x+0.55

-0.55=0.2x

-2.75=x

Therefore, x=-2.75

Can someone help me i really needed

Answers

The answer would be the third option or C

Answer:

C: √74

Step-by-step explanation:

We have to use the Pythagorean theorem to answer this (a² + b² + c²). We have a and b so all we have to do is square 5 and 7 (a and b) so we get a² b², then we add this to get c² as stated by the Pythagorean theorem. So, 7² (7 x 7) is 49, and 5² (5 x 5) is 25. 25+49 (a² + b²) is 74 (c²). So the square root of this would be the absolute length of the hypotenuse because this is the hypotenuse squared. Meaning that the answer would be √74 (square root of 74)

The figure shows the letter T and four of its transformed images—A, B, C, and D:Which of the four images was formed by a reflection of the letter T?

Answers

Answer:

c

Step-by-step explanation:

:)

48. Calculate the value of c in the triangle below.

Answers

Answer:

17

Step-by-step explanation:

c = a^2 + b^2 = 15^2 + 8^2 = 17

This is Pythagorean Theorem

The formula is a(squared) + b(squared)=c (squared)

15*15 is 225
8*8 is 64

Add the two numbers
Which is 289

Square root 289 which is 17

So C equals 17

If this helps mark me the brainiest!!

Helpp plz! ASAP FOR BRAINLIEST

Answers

Answer:

B or 1/3n-3<6; n<27

Step-by-step explanation:

1/3n-3<6; n<27

+3.      +3

1/3n<9

*3.  *3

n<27

The answer is the 2nd one

Please help ASAP!!!!!

Answers

it’ might be the one you have selected
It’s the last one it should be if not the my science teacher lied to me

The probability of a chance event is 0.5, it is __________ to happen when compared to a chance event with a probability of 1.
Select one:

less likely

more likely

both more and less likely

equally likely

Answers

Answer:

less likely

Step-by-step explanation:

Probability is between 0 and 1 so 1 is guaranteed to happen and 0 is guaranteed to not happen

Answer:

less likely

Step-by-step explanation:

0.5 is less then one there for the probability of 0.5 is less then 1.

At what position on the number line is the red dot located?

A. √5


B. √11


C. √7


D. √3

Answers

A because the square root of 5 is roughly 2.2

elene has a measuring wheel that clicks once for every 3 meters that she walks. how many times will the wheel click when elene walks 5.1

Answers

Answer:

once

Step-by-step explanation:

cuz 5.1 onley has one three in it so 1 time is the answer

The answer would be one

In 2012, the population of Houston, Texas, was about 2 × 106 and the population of San Marcos, Texas, was about 5 × 104. Which of the following statements is true?

A.
In 2012, the population of Houston was about 40 times the population of San Marcos.

B.
In 2012, the population of Houston was about 25 times the population of San Marcos.

C.
In 2012, the population of San Marcos was about 25 times the population of Houston.

D.
In 2012, the population of San Marcos was about 40 times the population of Houston.

Answers

Answer:

C

Step-by-step explanation:

h-212

sm-520

Rob scored 45 points this season. He scored 5 times more than Jake. How many points did Jake score this season? Write an equation that represents the story.



I need this today pls help!

Answers

45-5=40
Rob scored 45 points and jake scored 40. All you have to do is subtract 5 from 45 to get your answer.
It would be 40 right

How many triangles exist with the given angle measurements? 25, 65, 85

Answers

Answer:

0

Step-by-step explanation:

There are supposed to be 180 degrees in every triangle.

Therefore, no triangles exist.

PLEASE HELP!! ITS JUST PERCENTAGES

Answers

Answer:

12a. 22.5%

12b. 77.5%

13. $4000

Step-by-step explanation:

12.

    a. 315/1400= 0.225 = 22.5%

    b. 1400-315=1085  1885/1400= 0.775 = 77.5%

13.

[tex]\frac{5}{100} = \frac{200}{4000}[/tex]

5/100 will be equal to 200/4000 so the hair stylist made $4000 in sales.

also if im wrong sorry!!

12a. 22.5%
12b. 77.5%
13. $4,000
HOPE I COULD HELP GOOD LUCK:))

Help me with this pls!
Side note: tell me your favorite big time rush member
if you type mine, ill give you a brainliest

Answers

Answer:

kendall cause he is from the same state as me

Step-by-step explanation:

The answer is 1 i think

Carlos cuz he had the helmet

HELP I NEED ANSWER BEFORE 11 59

Answers

i think it’s 1 because there’s 9 shirts left and atleast one of them has to be green
I believe the answer is 5

WILL MARK BRAINLIEST PLZ HELP
Kelsey has a list of possible functions. Pick one of the g(x) functions below and then describe to Kelsey the key features of g(x), including the end behavior, y-intercept, and zeros.
g(x) = x^3 − x^2 − 4x + 4
g(x) = x^3 + 2x^2 − 9x − 18
g(x) = x^3 − 3x^2 − 4x + 12
g(x) = x^3 + 2x^2 − 25x − 50
g(x) = 2x^3 + 14x^2 − 2x − 14

Answers


g(x) = x^3 − x^2 − 4x + 4
g(x) = x^3 + 2x^2 − 25x − 50
g(x) = 2x^3 + 14x^2 − 2x − 14

my teacher assigns 18 million things can you help me please

Answers

Answer:

the inequality is 4

Step-by-step explanation:

you would add 3 to both sides

13+3 = 16

4x > 16

then you divide 4 by both sides and get 4

43. Find the length of the hypotenuse in this triangle.

Answers

Answer:

5

Step-by-step explanation:

use the pythagorean theorem

[tex] {h}^{2} = {p}^{2} + {b}^{2} [/tex]

[tex] {h}^{2} = {(4)}^{2} + {(3)}^{2} [/tex]

[tex] {h}^{2} = 16 + 9[/tex]

[tex] {h}^{2} = \sqrt{25} [/tex]

[tex] {h}^{2} = \sqrt{25} = 5[/tex]

can u help its just boxplots :)

Answers

Class B is the answer, it says 50% and class A is completely in the box. It’s B

Answer:

Class A

Step-by-step explanation:

If you look a class a, you see that the box in the boxplot is in between 76 and 88, and that space shows 50% of the class

Alex has 1.3 inches of string for his project. Chris has 2.56 inches of string. How much more string does Chris have than Alex? *

Answers

Answer:

1.26

Step-by-step explanation:

I took 1.3 away from 2.56 to find the diffrence

Using the diagram, find all the angle measures when the measure of angle XUY=40degrees

Answers

Answer:

XUY = 40 degrees

WUZ = 90 degrees

XUZ = 50 degrees

VUW = 40 degrees

VUY = 140 degrees

I hope this helps :)

Step-by-step explanation:

WUZ is a right angle, so 90 degrees. YUW is a straight angle, so it is 180 degrees, so WUZ + XUZ + XUY = 180, WUZ is 90 and XUY is 40, so 90 + 40 = 130, 180 - 130 = 50

XUZ is 50 degrees

Since VUW is on the opposite side of XUY, it is the same degrees as it, so VUW is 40 degrees

YUW is 180 degrees, so VUW + VUY = 180, VUW is 40 degrees, so VUY is 180 - 40 = 1400, VUY is 140 degrees

Now we have them all:

XUY = 40 degrees

ZUW = 90 degrees

XUZ = 50 degrees

VUW = 40 degrees

and finally,

VUY = 140 degrees

Reading this whole thing, it sounds sooo weird

helpppp meeeee plzzzz

Answers

Answer:

Our eyes are sensitive to all electromagnet waves with a wavelength longer than infrared

Step-by-step explanation:

I hope this helps :) good luck!

Please help. This is finding the area of a rectangle.

Answers

Answer:

2500 ft²

Step-by-step explanation:

The missing area at lower right in the diagram has dimensions...

(4-2 1/4) by (3 - 1 3/4) by (1 1/4)

Then area of that "Missing" space is (1.75)(1.25)= 2.1875 . . . . square inches. The area of the enclosing rectangle is ... (4 in) (3 in) = 12 square inches the area in the diagram representing the store is... 12 in² -2.1875 in² = 9.8125 in²

_

Each square inch on that diagram represents an actual area of (1 in)×(1 in) → (16 ft)×(16 ft) = 265 ft²

Then the actual store area is....

9.8125(256 ft²) = 2512 ft²

Rounded to the nearest 50 ft², this is 2500 ft².

2,500 ft is the answer

screenshot of the question down below

Answers

Step-by-step explanation:

Ok I did it I screen shot the question for you down below as you said

Answer:

The area is 360 square centimeters

Step-by-step explanation:

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