A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate of 3°C per hour. What was the temperature:
1 hour ago?
3 hours ago?
Half an hour ago?
Answer:
For one hour ago, it would be 3 C, 3 hours ago, it would be 9 C, and half an hour ago, it would be 1.5 C.
Step-by-step explanation: It's quite straightforward. Since the temperature is dropping, and you want to find the temp. of earlier times, just add 3C to every hour (1.5 for a half) it was ago, to what the temperature currently is now. (0 C).
Write an equation in slope-intercept form for the line with slope -2 and y-intercept 1. NO LINKS.
Answer:
y=-2x+1
Step-by-step explanation:
First you get the formula y=mx+b
m=Slope
b= Y intercept
so y=-2+1
Maria has already written Two-fifths of her 1,000-word essay. If she continues writing at the same pace of 6 1/2 words per minute, which expression shows the amount of time it will take her to write the rest of the essay?
1000 times two-fifths times 13/2
1000 times two-fifths divided by 13/2
1000 times three-fifths times 13/2
1000 times three-fifths divided by 13/2
Answer:
I think it's C
Step-by-step explanation:
if you multiply 1000 by 2/5 you would get 400 and if you divide 400 by 13/2 which is also equivalent to 6 and 1/2 you would get 15.38 which i assume is the time itll take her to finish her essay.... plus if u multiply 400 by 13/2 u get 2600 which i doubt it takes her like 43 hours to finish an essay of 1000 words
help help help help help help help help help help help help help help help help help help help help help help
Answer:
I think it could be the first one orthe forth one. It may be those ones.
what is this solid figure?
Answer:
Cylinder
Step-by-step explanation:
STEP ONE:
Identify base. It is a circle.
STEP TWO:
Identify the top of the figure. If it is the same as the lower base, then it is a cylinder.
So, this shape is a cylinder.
PLS HELP IM GONNA FAIL MATH
How long is the fence around a circular field with a radius of 340 ft.?
Answer:
so you are trying to find the circumference and the formula is 2πr
so the answer is 2 × 3.142 × 340 ft = 2136.56 ft
I think that's the answer
A car dealership sold 153 cars in 3 months. At what rate did the dealership sell cars in cars per month?
Answer:
51
Step-by-step explanation:
Divide 153 by 3 and you get 51
Solve for m.
−48=12(m+4)
Enter your answer in the box.
Answer:
-8
Step-by-step explanation:
First, you distribute the right side
-48 = 12(m+4)
-48 = 12(m) + 12(4)
Simplify:
-48 = 12m+48
Solve for m
-96 = 12m
m=-8
Answer:
-8
Step-by-step explanation:
-48/12 = m+4
(-48/12) -4 = m
m = (-4) - 4
m = -8
Gavin is moving into a new apartment that has a kitchen with an area of 50 square feet
What is the area of the bedroom?
Answer:
50
Step-by-step explanation:
i think I'm not sure. hope this helps.
Answer: WE CAN'T SEE THE PICTURES TO ANSWER YOUR QUESTION!
Step-by-step explanation:
Do the values in the table represent a proportional relationship?
x 1 2 3 4
y 2.5 5 7.5 10
Select from the drop-down menu to correctly complete the statement.
All of the y-values a constant multiple of the corresponding x-values, so the relationship
Answer:
yes every values are increasing constantly by 2.5
Answer:
Step-by-step explanation:
Note that for each unit increase in x, y increases by 2.5. The constant of proportionality is therefore 2.5:
y = 2.5x
All of the y-values are a constant multiple of the corresponding x-values, so the relationship is a proportional one.
Someone help me with this please, I really need help, and it's due tmrw...PLEASE
Answer:
y=2x+6
I started with the simplist equation for the first set (0,6) of y=X+6 and then tested it out for the second set (1,8) which didn't work. I then ajusted it so it would work with the second set by doing y=2x+6. Lastly, I tested this equation with all of the points and it worked for them all.
I NEED HELP PLEASE I HAVE POINTS
Answer:
17, 17, 1 13/21
Answer:
1 13/21
Step-by-step explanation:
First, Multiply the 4 and 3 by 7 to get 28/21. Then Multiply the 2 and 7 by 3 to get 6/21. Add them up and you get 34/21. To convert, divide 34 and 21 to get one with the remainder of 13. The final answer is 1 13/21.
HELLLLLLP RNNN PLSSSSSSSSSSSS
Answer:
D
Step-by-step explanation:
5/6 times 13 is 10 5/6. No
4 times 13 is 52. Yes
3/4 times 13 is 9 3/4. No
10/10 times 13 is 13. Yes
The expressions greater or equal to 13 are B and D.
What is an expression?An expression in math is a statement having minimum of two numbers, or variables, or both and an operator connecting them.
Given are expressions we need to determine expressions having values equal to or greater than 13,
So,
5/6 and 3/4 are numbers less than 1 if we multiply any number with them it will decrease its value,
So, the expression 4 x 13 and 10/10 x 13 will be the expressions having values equal to or greater than 13.
Hence the expressions greater or equal to 13 are B and D.
Learn more about expression click;
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Please don't spam. I will be so ****** if you do
Answer: please don't be ********* at me also the answer is c
What is 43434 x 21387128930523122222 and the first person to answer will get a brainliest from me!!!!!!!!!!!!!1
Answer:
9.2892856e+23
Step-by-step explanation:
How is evaluating an expression with fractions like evaluating an expression with whole numbers? How is it different?
Answer:
Full explanation
help ............................................
Answer:
the answer is 50
TIMES 5 and 10 to get your answer
(PLEASE HELP) To feed 7 horses for 4 days, Mark needs 420 kg of grass. How many kilograms of grass does Mark need to feed 9 horses for 6 days?
Answer:
810kg is the answer
Step-by-step explanation:
Hope this helps:)
Given: x + 5 ≥ 10. Choose the graph of the solution set.
Answer:
We'll want to end this one with x ≥ another value.
Step-by-step explanation:
So, subtract 5 from both sides.
x+5≥10
-5 -5
x≥5
So, x must be greater than or equal to 5.
A population of caribou in a forest grows at a rate of 3% every year. If there are currently 208 caribou, which function represents the number of caribou in the forest in t years?
Answer:
f(x)=208^0.3x
Step-by-step explanation:
Think of this as a graph. You start out with 208 caribou, which is your y intercept, as it is there when the growth is 0.
The generic formula fr an exponential equation is a^x.
A represents your initial value. In this case, its 208
x represents the growth. In this case, it's 0.3%.
Your equation should be f(x)=208^0.3x
include explanation pls
Answer:
less than mean subtraction
twice means 2 times
Step-by-step explanation:
What is the average dance time per week for Suzette relative to her goal number of hours?
Relative to Suzette's goal, her average dance time over the last five weeks is ____ hours.
Answer:
-0.07
Step-by-step explanation:
(im not 100% sure so if u gte it wrong im sorry)
Eli won 2 out of 3 chess games on day. At this rate, if he played 35 games, how many did he win? Write and solve a proportion
Answer:
23
Step-by-step explanation:
2/3 = x/35
3x = 2 × 35
3x = 70
x = 70/3
x = 23 1/3
Answer: 23
Please help me solve all these parts and you get brainlest
Answer:
1. is not. 2. 13
Step-by-step explanation:
Answer:
Is not. 2.13
Step-by-step explanation:
Please help! This really doesn't make sense to me. I NEED HELP!!!!
Find the scale of the two similar sides with known dimensions:
45/27 = 1 2/3
Figure A is 1 2/3 times larger than B. Now multiply the similar side of B to find x:
x = 18 x 1 2/3
x = 30
Answer: x = 30
Answer: 30
Step-by-step explanation:
(This is a similarity question)
So,
X/18 = 45/27
Then cross multiplication
X= 45×18/ 27
X= 30
I need help on this equation, it’s solutions to inequalities. I need explanation on why it’s that answer, plz, thx
Answer:
k=69
Step-by-step explanation:
(plug in 69 instead of k)
69/3 = 23.
23+1=24
The ≥ sign means 21 has to be GREATER or EQUAL to 17.
Is it?
24≥17?
YES!
So, it works out.
Hope this helps.
If you still don't get it, just ask again, I'll explain it in more detail.
The Mongolian Giant Sunflower produces seeds that are over 1 inch long, grow up to 18 feet tall, and flowers that are 1 ½ feet wide. Each flower head produces 1,000 seeds. You decide to harvest the seeds at the end of the season so that you can sell them the following spring. If you save 8 flowers for harvesting, how many seeds is that? Write your answer in scientific notation.
Answer:
8*10^3
Step-by-step explanation:
The Mongolian Giant Sunflower produces seeds that are over 1 inch long, grow up to 18 feet tall, and flowers that are 1 ½ feet wide. - All of this information is useless, all the question is asking is how many seeds do 8 flowers produce.
Each flower head produces 1,000 seeds. If you save 8 flowers for harvesting, how many seeds is that? - 1000*8 = 8000. 8000 is scientific notation is 8*10^3, as 10^3=1000, and 1000*8=8000 seeds.
HELP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLS
A special machine is used at a construction site to dig holes. A hole is dug to a depth of 4.75 feet when the machine hits rock. The progress slows to 3/5 feet per hour of digging. The depth of the hole must be at least 12 1/2 feet by the end of the day to stay on schedule. What is the minimum amount of time the machine must continue at its present rate to complete the hole on schedule? Select from the drop-down menus to correctly complete the statement.
Answer: 12 h ; 45 m
Step-by-step explanation:
*Important: From what I can see in this image, this appears to be a test. If this is the case, please do not cheat. In any case, here is the explanation.
What we know:
Progress has been made to 4.75Rate of digging is 3/5 mphDepth must be at least 12 1/2We need to find the minimum amount of time the machine worksHow to solve:
By setting up an algebraic equation, we can solve this.
Process:
Set up equation 4.75 + 3/5x = 12 1/2Convert 19/4 + 3/5x = 12 1/295/20 + 12/20x = 250/20
Subtract -95/20 -95/2012/20x= 155/20
Isolate x via division /(12/20) /(12/20)+Simplifyx= 12 11/20
Convert 12 h 33 mSolution: 12 ; 45
The minimum amount of time taken by the machine will be 12 hours and 55 minutes.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
An exceptional machine is utilized at a building site to dig openings. An opening is dug to a profundity of 4.75 feet when the machine hits the rock. The advancement eases back to 3/5 feet each hour of digging. The profundity of the opening should be no less than 12 ¹/₂ feet before the day's over to remain on time.
Convert the mixed fraction number into a decimal number.
12 ¹/₂ feet = 12.5 feet
Let 'x' be the time. Then the equation is given as,
(3/5)x = 12.5 - 4.75
Simplify the equation, then we have
(3/5)x = 12.5 - 4.75
(3/5)x = 7.75
x = 12.9167
x = 12 + 0.9167 x 60
x = 12 hours and 55 minutes
The base measure of time taken by the machine will be 12 hours and 55 minutes.
More about the solution of the equation link is given below.
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i neeed help. this is due today
Answer:
I’d say letter A
Answer:
I think is D
Step-by-step explanation:
Because that part explains the most what will happen
Name the Solid.
What shape is the base?
What is the VOLUME of the solid?
Round to the nearest tenth if necessary.
Answer:
Pyramid
V= 240 m^3
Step-by-step explanation:
The volume of a pyramid is 1/3 the Base times the height.
1/3x(10x8)x9