Answers
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
Find the slope of the line passing through the points (-3,1) and (-3,-6).
Answers
Answer:
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Step-by-step explanation:
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
write -90 7/50 as a decimal number.
Answers
Answer: convert -90 7/50 to a fraction therefor the answer is -90.14
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.
ReferenceSince 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 surface area of the prism.
Answers
Answer:
Step-by-step explanation:
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.
please help ya girl out!!
Answers
Answer:
Does this help
Step-by-step explanation:
i tried lol
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:
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
Can anybody answer both of these questions for me? (100 points)
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Answer:d
Step-by-step explanation:
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.
Please help me solve this.
Answers
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%
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
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
Explanation……………
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
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
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
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
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
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$=120/10=12$
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)
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.
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.
What card goes to what? (each card group has 4 cards)
Answers
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?
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%
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
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.
9.647×10^7 in standard form
Answers
positive 7, move the decimal point 7 places to
the right. 96470000
unicorns8627 • Ambitious
Answer:
96470000x
Step-by-step explanation:
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 (<).
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
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
2. 8
3. 59
4. 39
5. 13
6. 16