Mathematics Middle School

WILL MARK BRANLIESTHELP ME PLZ
A jeweler needed two diamonds of exactly the same weight to make a ring. The first stone she selected weighed 0.642 carat, the second weighed 0.599 carat, and the third weighed 0.625 carat.
By how much did the heaviest stone outweigh the lightest?
0.043 carat
0.042 carat
0.041 carat
0.04 carat

Answers

Answer 1
I believe it’s 0.043
Answer 2
The heaviest stone weighs 0.642
The lightest stone weighs 0.599
If you subtract 0.642 and 0.599, you will get the answer
0.642-0.599= 0.43
0.43 is your answer. 

Related Questions

Somebody plz help me?!

Answers

The fewest gluesticks Martha can buy are 3.

This is because 3x10=30 (scissors)
And you get the same answer for gluesticks 10x3=30.

Please help me with math please, they are number lines.

Answers

The answer is D because the inequality solves to x>/= to -4
To solve this you need to get x by itself, so to do this you simply subtract 3 from each side of the equation making it...

x >= -4

The arrow points to the right meanings that on the graph the arrow will go towards the right.

You could also think about it that x is greater than or equal to -4, so the arrow will be going towards the positive numbers from -4 meaning the arrow will go towards the right.

Also since it is greater than or equal to the circle will be a solid, filled in circle.

D is the answer

Hope this helps!

what is the measure of each angle in an equilateral triangle
a.45
b.60
c.90
d.120

Answers

i think the answer is b. 60

Javeon has 27 chocolate bars. he wants to share them with 5 friends. Write the problem as a fraction and then solve.

Answers

27 divided by 5 = 27 1/5

Solve for x:
5(x - 2) + 7 = 65 - 4(5x - 8)

Please help!

Answers

the answer is x=4 i hope i can help

solve the equation 5n + 5 = 45

Answers

5n+5=45

5n+5=45
     -5   -5
5/5n=40/5
n=8
     
You subtract the numbers 5n=45-5 then divide both sides by 5n=40 and you get n=8

If a and b are even integers and c is an odd integer, which of the following would be an odd integer? a + b + c ab - bc a x b x c b x c c (a + b)

Answers

A. a + b + c: a + b is even. Add c to even to get odd.
B. ab - bc: both products are even, so the difference is even
C. a x b x c: a and b are even, so the product is even
D. b x c: b is even, so the product is even
E. c(a + b): a + b is even, so the product is even

6•10^5 is how many times as large as 3•10^3

Answers

200 times greater because you take 6*10^5 and you get 600,000 then you find out 3*10^3 and it equals 3,000 so you take 600,000 and divide it by 3,000 and you get 200 and that is how many times greater it is.

4 groups of 6= 3 groups of___?

Answers

Hello!

4 • 6 = 24

24/3 = 8

So, 4 groups of 6 = 3 groups of 8.

I really hope this helped you out! :)

Round the nearest dollar amount of $34.57

Answers

34.60 or 35
Depends on what to round, tenths or hundreds....
.57 is closer to 100 than it is to 0. So you would round up to $35.

What is​ 35 ​written as a percent?

Answers

It is written as 35% or 0.35

Hope this helps!! :)

A concert hall seats 7,689 people.There were 8 concerts in June,and a ticket was sold for every seat.How many tickets were sold in June?

Answers

7689*8 is how many tickets are sold in June

61,512 tickets were sold

ted won 41 pieces pf gum playing basketball the country fair.at school he gave two to every students in his math class.he olny have 9 remaining.how many student are in the class

Answers

16 students are in his class.
x=number of students
2x+9=41
2x=32
x=16
There are 16 students in the class.

which expression is equivalent to 2^2×2/2^4

Answers

First step is to simplify the equation so that it makes our life easier! Since 2^2 is equivalent to 4, we can plug that into the equation. Then we can also simplify 2^4 to 16. Now it should look like this:

(4)(2)/16

Now we can solve. 4(2) = 8 so now we have 8/16. 8/16 simplifies to 1/8 when you divide the numerator and the denominator by 8. So there you go! Your final answer is 1/8! I really hope that helped you out, and happy holidays!

PLEASE HELP AND SHOW WORK!!

Answers

> multiply the second equation by 2 and add it to the first equation.
2(-6x - 7y = -10)
-12x -14y = -20

8x + 14y = 4
-12x - 14y = -20
--------------------
- 4x + 0 = - 16
x = -16/-4
x = 4

> use x = 4 in either equation to find y
8(4) + 14y = 4
32 + 14y = 4
14y = 4 - 32
14y = -28
y = -28/14
y = -2


8x + 14y = 4  | : 2
-6x - 7y = -10

 

 

4x + 7y = 2
-6x - 7y = -10

 

 

4x - 6x = 2 - 10
- 2x = - 8
2x = 8

x = 4


8x + 14y = 4 

14 y = 4 - 8x
14y = 4 - 8*4
14y = 4 - 32

14y = 28

y = 2

Solve equation for Y and graph it.
5y-x=20

How do I go about solving and graphing this equation.

Answers

So what you first want to do is isolate y.

This could be done by first adding x to both sides:

5y - x + x = 20 + x

5y = x + 20

Then divide everything by 5.

y = 1/5x + 4

Now to graph this equation:

Slope intercept form is y = mx + b.

b would be the y intercept and m the slope.

So therefore you know that 4 is the y intercept.

So first just plot the point (0, 4), and then from there you can take the slope and graph it from there. So basically, the y goes up by 1/5 each time the x goes up by 1. So then you could graph it by looking at where 5 is on the x axis and then graphing one above 4 from there, if that makes any sense.
Let's worry about graphing this first:  5y-x=20

If you set x = 0, then y = 4, and the y-intercept is then (0,4).
If you set y = 0, then x = -20, and the x-intercept is (-20,0).

Plot these 2 pts and then draw a str. line thru them.  Done!

If you wish to solve 5y-x=20 for y:  

1) add x to both sides:    5y = 20
2) divide both sides by 5:  y = 4

Express 4 8/9 as an improper fraction

Answers

the answer to the question is 44/9

Does the equation y = 3x - 12 show a proportional relationship between x and y? Explain

Answers

y = 3x represents a proportional relationship, whereas

y = 3x - 12 does not.  What's the difference?  No constant term, such as -12.  Recognize direct proportion as being expressed as y = kx (no constant term).

$300 to $200 percent change
Can you show work too please? I am terrible at math.

Answers

you have 300 which changes to 200
if it was 300 to 150 that would be 50%
since 150/300=1/2
take 200/300=2/3 so about 66%

I absolutely love how this is a got-to website for kids who just need answers and work shown. like right now im in a math test and looking around.

You are adding 6*3/4+3*2/3 using fraction strips.Explain how you rename the fraction part of the sum.pleeeeeeeeeaaase help : (

Answers

6 3/4 + 3 2/3 
= 6 9/12 + 3 8/12 
= 9 17/12 
= 9+ 1 5/12 = 10 5/12

Trey wrote 9.09-0.1=9.08.is his answer correct

Answers

No 9.09-.1=9.08 is not correct






He is not correct, because 9.09 - 0.1 = 8.99. 

what is 2,117 divided by 3

Answers

Hello There!

You're answer is 705.6666667.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
The answer is 705.666666667
Hope this helps. :)

Jackie had $135 to spend at the mall. She spent 29% of that money on a dress. Jackie spent $___ on the dress.

Answers

135 x 0.29 = 39.15; $39.15

Hope this helps,
♥Nikki♥

So here is a better explanation

?/135 = 29%/100

100? = 135 x 29 = 3915

100?/100 = 3915/100 = 39.15

Jackie spent 39.15$

How many three-letter "words" can be made from 5 letters "FGHIJ" if repetition of letters is not allowed?

Answers

There are 60 different three-letter "words" that can be made from the letters F, G, H, I, and J without repetition of letters. This can be calculated as a permutation of 5 choices for the first letter multiplied by 4 for the second and 3 for the third, resulting in 5 x 4 x 3 = 60 possible arrangements.

The question asks how many different three-letter "words" can be made from the five distinct letters F, G, H, I, and J, given that repetition of letters is not allowed. This is a problem of calculating permutations, where a permutation is an arrangement of all or part of a set of objects, with regard to the order of the arrangement. For each letter position in a three-letter word, we choose a different letter from the five available, without repeating.

For the first letter, there are 5 choices (F, G, H, I, J). Once we have chosen the first letter, there are 4 remaining choices for the second letter. After choosing the first two letters, there are 3 choices left for the third letter. To find the total number of permutations, we multiply these choices together: 5 choices for the first letter x 4 choices for the second letter x 3 choices for the third letter, which equals 60. Therefore, there are 60 different three-letter words that can be made from the letters F, G, H, I, and J without repetition.

(2x) (4x^2 + 3)
A. 8x^2 + 3
B. 8x^3 + 6x
C. 8x^2 + 6x
D. 8x^3 + 3

Answers

The correct answer is B
(2x)(4x²+3)=

8x³ + 6x

I WILL GIVE BRAINLIEST to who answers this question correctly.

Answers

You start counting from 0 onwards:

C = 6
D = 8

Then C x D = 48

So the product CxD is situated at 48 units from 0



If you have 8/12 of a pizza, how many thirds do you have?

Answers

You would have 2/3 because 4 can go into the numerator 2 which makes the numerator of your answer 2, then 4 goes into 12 4 Times which makes the denominator of your answer which is 3 so 2/3
You have two thirds in 8/12

what number is 2 units left of -7 on a number line?

Answers

This like subtracting, if you move to units to the left then it would be -5.

Tony ran laps around a track to raise money for a hospital. Tony raised $15 plus $1.50 per lap that he ran. He raised a total of $255. Let x represent the number of laps Tony ran. What expression completes the equation to determine the total number of laps Tony ran? How many laps did Tony run? Enter your answers in the boxes.

Answers

x=(255-15)/1.50
x=140/1.50
x=160

Answer:

1.50/255 160 LAPS

Step-by-step explanation:

Simplify
| -3.9 | + | 3.9 |
A. -7.8
B. 0
C. 7.8
D. 8

Answers

It would be C) 7.8

When a negative number is inside the absolute value, it turns out to be positive number anyways so the equation is basically 3.9 + 3.9 = 7.8
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