Mathematics Middle School

Can anyone help, would like a explaination with it to

Can Anyone Help, Would Like A Explaination With It To

Answers

Answer 1

Answer:B) 90 g/cm3

Step-by-step explanation:

Density= mass/volume

m=450g

v=5cm3

therefore density=450/5

                            =90 g/cm3

Related Questions

a) The sum of two binomials is –3x – 2y. What could the two binomials be?

b) The difference between two binomials is –3x – 2y. What could the
binomials be?

Answers

Answer:

Step-by-step explanation:

rgrhh

what is the value of x

Answers

Answer: 16 degrees

Step-by-step explanation:

Since m||n, then t is a transversal.

Therefore, you can see that x = 16 degrees

Answer:

16°

Step-by-step explanation:

Given that m and n are parallel, we know that the angles on this transversal are equal. Using the Alternate Exterior Angles Theorem we can see that x=16 because 16 degrees is the angle measurement of the alternate exterior angle.

-Hope this helped

Help me with this pls

Answers

Answer:

The relationship between angle 1 and angle 2 is that they both have the same value and are congruent angles. Because angle 1 is 108 degrees, angle 2 is also 108 degrees.

they’re both congruent and both 108 degrees

an alligator named Camila Arguello was 32 inches long in 2022, she was measured now in 2023, she is now 38 inches long, find the percent increase and percent CHANGE.

Answers

Answer:

Step-by-step explanation:

38-32=6

1%= 1/100    

32/100+ 38/100

changed by 6%

Paula was buying candy from a candy dispenser. She inserted a quarter and expected to get 14 pieces of candy. Only 10 pieces of candy actually came out of the dispenser. What is the percent error for the number of candy pieces Paula expected to get?

If necessary, round your answer to the nearest tenth of a percent.

Answers

Answer: 71.4%

Step-by-step explanation: I looked it up

Answer:

40%

Step-by-step explanation:

(14-10) ÷ 10

4 ÷ 10

2/5

Convert 2/5 into percentage

Divide 2/5: 0.40

0.40 x 100: 40%

Find the surface area of the prism.

Answers

Answer:

Step-by-step explanation:

Look at the question you wrote in problem 4. Show how to estimate the answer.Then find the find the actual answer

Answers

Answer:

Step-by-step explanation:

multiply number twice and divide by 3

Please help me solve this.

Answers

It's C! Sorry if that answer is wrong tho have a good day

The dot plot shows predictions for the winning time in a 200-meter sprint. The winner finished the race in 22.3 seconds. Find the greatest percent error for a prediction to the nearest tenth of a percent. Justify your answer.

Answers

Answer:

Step-by-step explanation:

22.8 is the farthest away from the correct time. The people that got this were off by the percent difference from 22.8 to 22.3. This is 2.21729%≈2.2%

hope this helps

Creative crafts gives scrapbooking lessons for $15 dollars per hour plus a $10 supply charge. Scrapbooks incorporated gives lessons for $20 dollarts with no aditional charges. Write and solve a system of equations that represent the situation. Interpret the solution.

NEED ANSWER NOW PLEASE

Answers

Answer:12

Step-by-step explanation:15$/10 times 20$=120/10=12$

The system of equations is:
y=15x+10
y=20x
x= 2
y= 40
(Y equals the total amount of money and x equals the number of dollars per hour)

A sweater is marked down 30% off the original price. The original price of the sweater was $42. What is the sale price of the sweater?

Answers

If the original price of the sweater is $42 and you get it for 30% off, it means that you are only paying 70% of the original price. So, the sale price would be . 70 X 42 = 29.40
The answer is $29.40

You take the original price and multiply it by .3(30%). Then you’ll take that answer, which is 12.6 and subtract it from 42

42x.3=12.6
42-12.6=$29.40

evaluate the expressions

1. 3(8) - 15

2. 4(2+3) - 12

3. 4(12)+11

4. 9(14-5) - 42

5. 3(7) - 4(2)

6. 7(8) - 5(8)

Answers

It is 20 for that one answer
1. 9
2. 8
3. 59
4. 39
5. 13
6. 16

Please help I am not asking to find the percentage change. By the way, I need this TONIGHT!!!!!!!!!!

Answers

Answer: 52.2

Step-by-step explanation:

1/ replace the letters with their values (ex: a=36)
2/ calculate [b] by adding [a] to (25% of [a] )
3/ repeat step 2 but instead of [a] use [b] and instead of 25% use 16%.
Answer below: 52.2

9.647×10^7 in standard form

Answers

Since the exponent of the scientific notation is
positive 7, move the decimal point 7 places to
the right. 96470000
unicorns8627 • Ambitious

Answer:

96470000x

Step-by-step explanation:

Answer the question below:

Answers

Answer: In sure they do!

Step-by-step explanation:

t's possible that the circle's diameter and circumference are the same as 7.2 inches and 28 inches. To answer the question, I'm going to use the formula C. Equals pi times D. It's Mhm. It's not possible for a circle with a diameter of 7.2 in to be the same as a circle with a 22.62 in pi. You end up with a smaller circumference when you plug 7.2 into the formula for circumference.

Can someone pls explain to me

Answers

Answer:

272.5

Step-by-step explanation:

dotted line of the circle = 12 because this whole thing is a parallelogram + half a circle.  so diameter for the 1/2 circle is 12

so that means radius = 6, which is 1/2 of the diameter

circle area = π*r² = 36π

1/2 of it = 18π = 56.5

parallelogram area = base * height = 24 *9 =216

total  216+56.5

How can this question be solved? Please help me.

Answers

Answer: 8/35 square yards

Step-by-step explanation:

The formula to find an area of a rectangle is L * W (length * width). Here your length would be 4/7 yards, and your width would be 2/5 yards, so plugging it into the formula would be 4/7 * 2/5 = 8/35 square yards.

8/35 square yards is answer

Please answer this question I will give you brainlest
Doug builds a skateboard ramp.The base is 6 feet long and the height is 1.5 feet.What is the slope of the ramp?Explain

Answers

Answer: The slope of the ramp is 0.25

Step-by-step explanation: The slope of a ramp is a measure of how steep it is. It is typically expressed as a ratio of the height to the length, also known as the rise over the run. To calculate the slope of the ramp, you can divide the height by the length.

In this case, the ramp is 6 feet long and 1.5 feet high, so the slope is:

1.5 feet / 6 feet = 0.25

So the slope of the ramp is 0.25, which can also be written as a fraction 1/4 or 25%. This means that for every four feet of horizontal distance, the ramp rises by one foot.

Alternatively, you can think of this as the angle of the ramp, if the angle formed by the ramp is small it will have a small slope and if the angle formed is large, it will have a large slope.

In simpler terms, the slope represents how steep the ramp is. The higher the slope, the steeper the ramp will be. And the lower the slope, the gentler the ramp will be. In this case, since the slope is 0.25 it is a gentle ramp.

Answer:

0.25

Step-by-step explanation:

I had this before I got it wrong but then my teacher gave me the answer

Eve wrote a total of 24 pages over 8 hours. How many hours will Eve have to spend writing this week in order to have written a total of 33 pages? Solve using unit rates.

hours:

Answers

Answer: 11 hours

Explanation: do 24/8 and you’ll get the unit rate which is 3 then do 33/3 and you’ll get your answer 11 hours
Answer 11 hours


Explanation……………

write -90 7/50 as a decimal number.

Answers

Answer: convert -90 7/50 to a fraction therefor the answer is -90.14

i’m pretty sure it would end up being -90.14

Need answer asap will give brainly if it's right

Answers

Answer:

It is not possible to form a polygon with side lengths of 6cm, 2cm, and 7cm. In order for a polygon to be possible, the sum of the interior angles must be less than 180 degrees. To form a polygon with 3 sides (triangle), the sum of the interior angles must be 180 degrees. But the sum of these side lengths does not add up to 180 degrees, therefore it's not possible to form a polygon with these side lengths.

What is the value of x and y?

Answers

Answer: y=41 and x=41

Answer:

x=41 y=41

Step-by-step explanation:

y is a mirror of the other side which is 41 degrees. So y=41. m and n are parallel so x is also equal to 41.

What card goes to what? (each card group has 4 cards)

Answers

You need to add all of those and it will be one

Traveling along a river, a man in a row boat loses his hat when he passes under a bridge. In 15 minutes, he realizes that he lost his hat, and rows his boat the other way until he is able to retrieve his hat 1 km away from the bridge. What is the speed of the river's current?

Answers

Answer:

The speed of the current is 33.33 meter/minute.

Step-by-step explanation:

Let the speed of the boat in still water is x km per minute and the water is r  km per minute.

The speed of the boat in downstream is (x + r) km per minute and in upstream is (x - r) km per minute.

First, the man was moving in upstream, because the hat was retrieved 1 km away from the bridge.

After losing the hat the man traveled 15 minutes upstream, hence he went 15(x - r) km far from the bridge.

After 15 minutes he was coming back to collect his hats.

Let, he has traveled downstream for t minutes to get his hat.

Hence, t(x + r) = 15r + tr +  15(x - r) or, tx = 15x or, t = 15.

Again, 15r + 15r = 1 km or, r = 1/30 km = 1000/30 =33.33 meters.

Answer:

  2 km/h

Step-by-step explanation:

You want to know the speed of the river's current if a man loses his hat in the river and continues to row downstream for 15 minutes before returning upstream to retrieve his hat, 1 km downstream from where he lost it.

Reference

Since the hat is moving with the current, the boat is essentially in "still water" relative to the hat. The distance rowed in 15 minutes, relative to the hat, is exactly the distance that must be rowed to retrieve the hat. That is, the return trip takes 15 minutes as well.

The man is away from his hat for 1/2 hour, in which time the current has moved it downstream 1 km. Hence the speed of the current is ...

  (1 km)/(1/2 h) = 2 km/h

The speed of the river's current is 2km/h.

__

Additional comment

Interestingly, it does not matter if the original direction is upstream or downstream, nor does it matter how fast the man is rowing (as long as his speed is not zero).

Find the slope of the line passing through the points (-3,1) and (-3,-6).

Answers

The slope of the line is undefined

Answer:

undefined

Step-by-step explanation:

please help ya girl out!!

Answers

Answer:

Does this help

Step-by-step explanation:

i tried lol

The answer is x=b+_ 24[8263]737

Which inequality best represents that ice cream at −1°C is cooler than ice cream at 2°C?

Answers

Answer: The answer is -1°C < 2°C

Step-by-step explanation:

Inequalities are when something uses the greater than equal to or less than symbols. Also known as these <, =, >.

Because ice cream at -1°C is colder than ice cream at 2°C we would use the less than symbol (<).

It would be < (less than symbol)

A school wants to sell 300 sweatshirts for a fundraiser. All sweatshirts have the same price, and they want to make a total of $11,778.00 in sales.

Answers

They will be priced at $39.26
The total would be $39.26

On the windowsill is a plant that is 8 inches tall. It is growing 2 inches per week. A second plant, which is 3 inches tall, is on the coffee table. It is growing 4 inches per week. Eventually the two plants will be the same height. How tall will the plants be?

Answers

Answer:

Let's call the height of the first plant as x and the height of the second plant as y.

We know that the first plant is 8 inches tall and growing 2 inches per week, so we can write the equation:

x = 8 + 2t (where t is the time in weeks)

We know that the second plant is 3 inches tall and growing 4 inches per week, so we can write the equation:

y = 3 + 4t

We also know that the two plants will be the same height when they meet, so we can set the two equations equal to each other:

x = y

8 + 2t = 3 + 4t

5 = 2t

t = 2.5

So the plants will be the same height in 2.5 weeks. To find out how tall they will be, we can plug this value of t back into either equation:

x = 8 + 2(2.5) = 8 + 5 = 13 inches

y = 3 + 4(2.5) = 3 + 10 = 13 inches

So both plants will be 13 inches tall when they reach the same height.

If I helped you, could you please make my answer as best?

Can anybody answer both of these questions for me? (100 points)

Answers

Answer:d

Step-by-step explanation:

its steo by step answer: d
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