Mathematics Middle School

A cubehas a mass of 9 grams and each side is 3 cm3. What is the density of the sample?

a.0.33 g/mL

b.36g/m

Lc.3g/mLd.18g/mL


(I know this aint math but no one answers science stuff -_-)

Answers

Answer 1
I believe your answer would be A. :)
Answer 2
Your answer is A person above me is correct

Related Questions

I just need examples of these things, I have to make my own problems and solve them:

• Two one-step equations
• Two equations that contain fractions
• One equation with distributive property
• One equation with decimals
• One real-world problem that is solved by an equation

(I'm not copy and paste-ing, I just need some examples so I can make my own)

Answers

1) x+17=20
x-10=30

2) x/4=20
x/30=2

3) 4(x+5)=40

4) x+3.2=6

5) A pizza place sells pizza for $5 per box. If I had $20 how many pizzas can I buy in all? (5x=20)

Hope this helps! Have a wonderful day.

Find the slope...........

Answers

First thing to do is find out the coordinates of two points on the graph (I will use the ones that have been marked by the red dots):

Point A: (3, -1)
Point B: (1, 2)

Then we will use the slope formula to work out the slope:

y₂ - y₁ / x₂ - x₁

Substitute in our points:

2 - (-1) / 1 - 3

Then we work out the expression (remember a negative and a negative make a positive!):

3 / -2

Then we check if we can simplify this fraction, which in this case we cannot.

Therefore the slope of that line would be:

3 / -2

(remember to write it as a fraction!)

Slope-intercept form
find out the y intercept and slope

Answers

Answer:

18. Slope (m) = 1/2

Y-intercept (b) = -6

19. Slope (m) = 2

Y-intercep (b) = 8

20. y = 1/2 + 6

Step-by-step explanation:

y = mx + b

y - 2x = 8

y = 2x + 8

18.slope (m) = 1/2
Y - intercept

Simplify the expression 6(11+4−7h)

Answers

Answer:

−42h+90

Explanation:

6(11+4−7h)

=(6)(11+4+−7h)

=(6)(11)+(6)(4)+(6)(−7h)

=66+24−42h

=−42h+90

The answer is 90-42h

Alan travels eight and two thirds kilometers to get to school. He ran one and ten elevenths kilometers and walked the rest. How many kilometers were left to walk?

six and two thirty thirds kilometers
five and twenty five thirty thirds kilometers
six and twenty five thirty thirds kilometers
six and twenty thirty thirds kilometers

Answers

Answer:

6 2/3 or 6 20/30

Step-by-step explanation:

8 2/3 = 8 22/33

1 10/11 = 1 30/33

8 22/33 = 7 52/33

7 52/33 - 1 30/33 = 6 20/30 = 6 2/3

(33 is the common denominator)

hope this helped (:

6 25/33

8 22/33 - 1 30/33 = 6 25/33

Help, this is so confusing.

Answers

Answer:

D. $0.05

Step-by-step explanation:

Don't worry! I'll help you through it.

So we just have to find the unit rate (price) per apple.

$4 divided by 5lbs bag = $0.80 so, The 1st bag is $0.80 an apple.

$6 bag divided by 8lb = $0.75 an apple.

Now, simply subtract

0.80

-0.75

0.05

So your answer is D, $0.05

Have a great day!

~PumpkinSpice1

0.05 is the answer because the unit rates are 0.8 and 0.75

Algebra Need Help Pls. Can someone explain to me how to do this?

Answers

Answer:

y=-3x

Step-by-step explanation:

Mark me as brainliest

Please help me i dont understand
At the start of the month, the value of Susan’s checking account was $53. She gets paid $375 per week for 4 weeks and spends $172 on groceries for the month. How much does Susan have in her checking account at the end of the month?

Answers

$1,381

Because 375×4= 1,500
and 1,500-172= 1,328
lastly, 1,328 + 53= 1,381
Susan has $1381.

[ 53 + (375x4) ] - 172

help please!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

18. slope =1/2 y-int= -6

19. slope=2 y-int= 8

Step-by-step explanation:

The slope for number 18 would be 1/2 and the y intercept would be -6

The slope for 19 would be 2 and I cannot see the picture of the intercept correctly, but I’m assuming it is 6

Could someone please find the rate and y-intercept for these two points? (2,2) and (3,4) the help would be greatly appreciated!!

Answers

First use a formula to find rate of change
so a formula most commonly used is (y^1-y^2)/(x^1-x^2)

m= (y^1-y^2)/(x^1-x^2)
=m=(4-2)/(3-2)
=m=2/1
2/1 can also be expressed as just 2 since anything divided by 1 is just itself

Now use the formula y=mx+b to find the y intercept

use either of your two given point to susitute y and x

y=mx+b
Substitute your values
=(4)=(2)(3)+b
Calculate
=4=6+b
Subtract both sides by 6
=-2=b

Therefore the rate of change is 2/1 and the y-intercept is -2

The temperature was -10 Fahrenheit at 8:00 PM one day in Denver. A cold front lowered the temperature over the next hour by 3 degrees. What was the new temperature at 9:00 PM?

Answers

Answer:

-13 degrees Fahrenheit

Step-by-step explanation:

3 degrees lower then -10 degrees would be -13.

Answer:

-13 Fahrenheit

Step-by-step explanation:

(MARKING) How many solutions does this equasion have? -4 - 10n = 8h + 10
ANSWER CHOICES
1. No solutions
2. One solution
3. Infinite solutions
Please answer soon will mark!

Answers

Answer:

infiintie\

Step-by-step explanation:

Answer:

3rd choice is your answer

Step-by-step explanation:

Assume that the cheetah travels an average of 40 mph to go from its resting place to a rock near a river. On the return trip to its resting place, the cheetah travels an average of 70 mph. If the cheetah traveled for 15 minutes, how many minutes did the return trip take to the nearest minute and second?
Set up the table as follows. Label the rows “To the River” and “From the River.” Label the columns “Distance,” “Rate,” and “Time (in Hours).” Let t represent the unknown quantity in the problem. Fill in the table.

Answers

Answer:

9.55 minutes

Step-by-step explanation:

x hours to go to the river

0.25-x hours to come back, since 15 minutes is 0.25 hr.

to the river 40 mph * x hours =40x miles

from the river 70 mph (0.25-x) hours=17.5-70x

those two are equal

40x=17.5-70x

110x=17.5

x=17.5/110=0.159 hours

9.55 minutes

Please help!!! Will try my best to give brainliest!!!!


Find the GCF of n 3t ^2 and nt 4.


n ^3t^ 6

n ^3t ^4

nt ^2

n^ 4t^ 6

Answers

Answer: nt ^ 2
:))))

Answer:

for this question is nt^2 or C

Step-by-step explanation:

A rectangular poster has an area of 504 square centimeters. The width of the poster is 14 centimeters. How long is the poster?

Answers

Answer:

36 sq. cm.

Step-by-step explanation:

We find area by multiplying the length by the width of the poster. But now, in your question we want to find the length of the poster. We are given the area, 504 square centimeters, and the width, 14 centimeters. Since multiplication and division are inverse operations, we will do the opposite of multiplication, division, to find the quotient, the length of the poster. 504 divided by 14 can be written like this: 504 / 14. 504 / 14 = 36 sq. cm. We can check our answer by multiplying 36 and 14 to get 504. So, we know our answer is correct.

Answer:

i think it is 514

Step-by-step explanation:

pls help me i dont understand it.....................

Answers

Brainliest pls






To the person above me :)

A fruit basket contains only apples and bananas. If there are 8 apples and 13 bananas, what is the ratio of bananas to fruit? Select all that apply. 13:8

Answers

Answer:

The ratio of bananas to total fruit is 13:21

Step-by-step explanation:

Since we already know the amount of apples and pears, we can find the total. 13+8=21, and since we know the number of pears, 13, we can say that the ratio is 13:21.

Answer: 13:21

13:21 is the correct answer I hope it helps

Write or draw TWO (2) DIFFERENT fractions that are equivalent to 5/6

Answers

You could do 10/12 and you could do 15/18


Hope that helps!

Pls help
In Ocean City, MD a seagull is flying at 210¾ ft. above sea level and a dolphin is swimming at 329¼ ft. below sea level. What is the distance between the seagull and the dolphin?

Answers

Answer:

I believe the answer is 540* because

Step-by-step explanation:

we start with the fractions, we have 3/4 and 1/4 which makes a whole, to make it easier i added that to 329 to get 330. Then i added 330 to 210 to get 540.

Answer:

six foot 12 is ur answer

Step-by-step explanation:

Look at the picture.

Answers

Answer:

178.5

Step-by-step explanation:

First, you take 8*10 and the subtract 7. Second, because it is a fraction, you divide it by 4*10-4. Basally,  its 8*10=80-7/4*10=40-4

What is the Law of Exponents?

Answers

Answer:

The exponent of a number says how many times to use the number in a multiplication.

Example:

[tex]8^{2}[/tex] = 8 × 8 = 64

Simplify (6^-8)^4 Please help

Answers

Answer:

6⁻³²  (or 1/6³²)

Step-by-step explanation:

(6⁻⁸) ⁴

= 6 ⁽⁻⁸⁾⁽⁴⁾

= 6⁻³²  ( or in fraction form 1/6³²)

Answer:

[tex]\frac{1}{6^{32} }[/tex]

Step-by-step explanation:

If I read the question rights its = [tex](6^{-8} )(^{4})[/tex]

The perimeter of the original rectangle on the left is 30 meters. The perimeter of the reduced rectangle on the right is 24 meters. What is x, the width of the original rectangle on the left? Round to the nearest hundredth if necessary.

A) 5 meters
B) 8 meters
C) 10 meters
D) 12 meters

Answers

X=5



Explanation:


If the triangle on the rights perimeter is 24 and two of the lengths are 8 then we know 8+8=16 24-16=8 8/2=4
So the triangle on the right has the numbers 8 and 4 as it’s length and width

So then you would find out how much it was dilated to get from 30 to 24
30/24 and you get 1.25 so you multiply 4 by 1.25 and get 5, and then to double check you can multiply 8 by 1.25 and get 10 then add it all together
5+5+10+10=30 so you know that’s correct.

Is the table above proportional or non-proportional?

Answers

Answer: I think you should divide them all and if you get the same answer it’s proportional if you don’t get the same answer it’s non-proportional

Step-by-step explanation:

Answer:

It is non-proportional.

Step-by-step explanation:

The table is non-proportional because it expresses a curved line instead of a straight line.

please help I hate imagine math its in the photo ​

Answers

I wish I can help you
I’m so sorry but I have no idea

Solve the inequality $-4x > -24.$ Give your answer in interval notation.

Answers

Answer:

(negative infinity, 6)

Step-by-step explanation:

To get this:

1. -4x > 24

Divide by -4

2. x < 6

When you divide by a negative you have to flip the inequality. Therefore, any number that is less than 6 is the answer.

The solution of the inequality will be;

⇒ x ∈ (- ∞, 6)

What is Inequality?

A relation by which we can compare two or more mathematical expression is called an inequality.

Given that;

The inequality is,

⇒ - $4x > - $24

Now,

Solve the inequality as;

The inequality is,

⇒ - $4x > - $24

Multiply by - 1, we get;

⇒ $4x <  $24

Divide by 4, we get;

⇒ x < 6

⇒ x ∈ (- ∞, 6)

Thus, The solution of the inequality will be;

⇒ x ∈ (- ∞, 6)

Learn more about the inequality visit:

https://brainly.com/question/25275758

#SPJ2

Pls help!!!! I’ll do anything and a brainlist!! This is worth 17 points pls help!

Answers

2 they are shinny I hope it helps!

what does tempature measure

Answers

Answer:

Temperature is a measure of the average kinetic energy of the particles in an object.

Step-by-step explanation:

which means its b

The question is in the screenshot :)

Answers

Answer:

oof

Step-by-step explanation:

I’m pretty sure it is C

1/2(12w+8) -1/5(10w-5) find the difference

Answers

1/2(12w+8) -1/5(10w-5) = 4w + 3 or 4w + 5

( im kinda confused on this myself)

Answer: 4w + 5
(extra characters)
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