Answers
Answer:
a) constant of proportionality is 3/5
b) 3.5cm per 1 minute
c) 21 cm water in trough after 6 min
d) 70 cm
Step-by-step explanation:
d) 21 / 6 = x / 20
7 / 3 = x / 20
2x = 140
x = 70
Related Questions
*PLEASE ANSWER!!! QUICK*
Which equation has 12 as the solution?
a.) 4x + 2 = 2x + 10
b.) -5 + 2x = 4x - 13
c.) 6x – 7 + 3 = 32 + 3x
Answers
Answer: C
Step-by-step explanation:
6x-7+3 = 32+3x> 6x - 4 = 32+ 3x > 3x = 36 > x = 12
Solve |2x-5|= 4
Need in 5 minutes
Answers
Answer:
x=4.5
Step-by-step explanation:
2x-5=4
2x=9
x=4.5
The volume of a cuboid is 40cm3.
The length is 2cm and the width is 4cm.
Work out the height of the cuboid.
Answers
Answer:
The height of the cuboid = 5 cm
Step-by-step explanation:
Explanation:-
Given that the volume of the cuboid = 40 cm³
Given that length of the cuboid (l) = 2 cm
Given that the width of the cuboid (w) = 4 cm
The volume of the cuboid is determined by
[tex]V = length X width X height[/tex]
40 = 2× 4× h
h = 5
The height of the cuboid = 5 cm
You have two identical boxes which an interior dimensions of 8.0x8.0x8.0. You completely fill one of the boxes with wooden spheres that are 1.6 in diameter. The other box gets filled with wooden cubes that are 1.6 cm on each edge. After putting the lid on the filled boxes, you then measure the density of each. Which one is more dense?
Answers
Answer: The one filled with wooden cubes.
Step-by-step explanation:
First, the box filled with spheres will have empty space, this is for how spheres are, so independent of the radius of the sphere, we will always have some empty space inside the box.
In the case of the cubes, this does not happen. Furthermore, the dimension of the box are 8cm by 8cm by 8cm, and the cubes have a sidelength of 1.6cm
We know that:
1.6cm*5 = 8cm
Then we can perfectly fill the box with the wooden cubes (such that there is no empty space like in the previous case).
Because this box has no empty space and is filled with the same material as the other box, we can conclude that this box will have a larger mass than the one filled with spheres.
And we know that:
density = mass/volume.
Both boxes have the same volume, but the box with cubes has a larger mass, then the box with cubes will have a larger density.
What is the slope of a line perpendicular to the line whose equation is 2x-10y=100
Answers
Answer:
-5
Step-by-step explanation:
To find the perpendicular line, first rearrange this into slope intercept form.
y= mx + b
2x - 10y = 100
-10y = -2x +100
y = 1/5x - 10
The slope of a perpendicular line has a slope that is the receipt I’ll of and opposite of this line. The slope here is 1/5 so flip it and you have 5/1. It will also be negative since that slope was positive.
1/5 —> 5/1 —> -5
A grocery store sells a bag of 3 oranges for $2.61. What is the cost of oranges, in
Ullars
per orange?
Answers
Answer:
.45
Step-by-step explanation:
The average person in the United States drinks 767 cups of coffee annually. How many quarts of coffee is that? Show your work. ( do not comment if you do not know or I will report )
Answers
Answer: 191.75 quarts.
Step-by-step explanation:
We know that:
1 quart = 4 cups.
Then:
1 cup = 1/4 quarts.
this means that 1 cup, is equal to 1/4 quarts.
Then 767 cups is equal to 767 times 1/4 quarts.
The change of units is simply:
767 cups = 767*( 1/4 quarts) = 191.75 quarts.
Work out 5 + 4 x 7 - 1
Answers
5 + 28 -1
33-1
32
Step-by-step explanation:
According to the BODMAS rule you need to first do division then multiplication then addiction and lastly subtraction. In the question above also you are asked to simplify, So firstly you need to do multiplication, then addiction and then subtraction,
Therefore, you will get the answer of the above question as 32.....
Help pls question is the picture above :))))
Answers
PLEASE ANSWER ASAP !! WILL GIVE BRAINLIEST
Answers
Hope I helped
The graph to the right represents Mario's mile time in minutes.y, based on the number of hours he spends training in hours, X. What conclusion can you make?
A. Mario's fastest miles is 1/2 of an hour
B. Mario can run a 2 minute mile after an hour of training
C. Mario's miles time goes down 1 min for every 2 hours of training
D. Mario's mile time goes down 2 mins for every 1 hour of training
Answers
Answer:Mario's mile time goes down 1 minute for every 2 hours of training.
please help that is muh question
Answers
t=d/350 and d=350*t
Please please please can someone please help me with this problem. I don’t know what to do and I’m fairly certain I’m about to fail my math class...
Answers
Answers:
bcdae============================================
Explanation:
The general form of a slope intercept equation is y = mx+b
m = slope
b = y intercept
Something like y = (-7/6)x + 1 matches with y = mx+b such that m = -7/6 is the slope and b = 1 is the y intercept. So that's why problem 1 matches with choice b (in column B).
Similar situations apply for problems 2 and 3
-----------
For problem 4, we can see the slope is m = -1, but unfortunately m = -1 isn't listed in column B. However, m = -7/7 is listed. So this is why problem 4 matches with choice a. This leaves problem 5 to match with choice e.
note: 6/7 = 12/14 after multiplying top and bottom by 2.
Alicia borrowed $3000 from the bank at a rate of 12% simple interest per year. How much TOTAL did she pay the bank back after 5 years? (Hint: do NOT add the amount back to the money she borrowed)
Answers
Answer:
1440 $
Step-by-step explanation:
3000 - 100%
x - 12%
360 - 1 yea
Step-by-step explanation:
Twice the difference of 1 and a number.
Answers
Write an expression for "h less than 13"
Answers
Answer:
13-h is h less than 13. this is how you answer this.
Hey there!
Sometimes “less than” means “>” ( a number smaller than the number that’s being compared to) or “subtraction”
So, therefore your answer should be
[h < 13] or [h - 13]
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
is this triangle congruent?
Answers
Answer:
I would LOVE to help but your photo is just a black screen for me. Sorry
Find the slope that contains the points (-1, 4) and (2,6).
Answers
Answer:
slope = 2/3
Step-by-step explanation:
Round to a one digit arithmetic. 40,644 divided by 18
Answers
Answer:
2,258
Step-by-step explanation:
The Furry Friends Hotel, a kennel in Sparrowtown, needs to bring in at least $1,100 per day to cover its operating costs. The kennel charges $26 per day to house a large dog and $23
per day to house a small dog.
write an inequality to represent the situation
Answers
Answer:
23x >= 1100
Step-by-step explanation:
A 12 pound Turkey takes about 90 minutes to cook. How many hours would it take to cook a 20 pound turkey?
Answers
Answer:
2.5 hours
Step-by-step explanation:
it takes 7.5 min to cook each pound, so, take 20 times 7.5 to get the amount of time.
What are the like terms in the following algebraic expression? 5 - 3y + 2x - 5y + x - 2 + 3x^2
Answers
Answer:
3y+2x+5y+3x
Step-by-step explanation:
sepreate the varible numbers from the reguler
greta has piece of cloth that is 9 yards long she cut it into pieces that are each 1\3 how many pieces does greta have now
Answers
Answer:
27
Step-by-step explanation:
9 divided by 1/3 is 27
Solve each problem below. Show your steps. The Yellow Cab Company charges just $0.25 a mile, but it costs $5 to get in the cab. Express Cab charges no fee to get in the cab, but $1.50 a mile for the ride. Write the equations for both companies. Let y = total cost of ride and x = miles. (14) Yellow Cab Company: (15)Express Cab: (16) If you are going 7 miles, which cab company should you call? (17) If you are going 3 miles, which company should you call?(18)for what length of drive is the cost equal ?
Answers
15. $1.5x=y
16. Yellow cab, 5+.25(7)=6.75
17. Express cab, 1.5(3)=4.50
please help! show all steps
Answers
Answer:
Tn = 8n - 2
Step-by-step explanation:
Given the arithmetic sequence
6, 14, 22, 30, 38
The nth term is expressed as;
Tn = a +(n-1)d
a is the first term = 6
d is the common difference = 14 - 6 = 22 - 14 = 8
Substitute into the formula;
Tn = 6 + (n-1)(8)
Tn = 6 + 8n-8
Tn = 8n - 2
Hence the nth term of the sequence is 8n-2
Please help me :( i need to finish it
Answers
Answer:
It's 5, or to find it, 3x =15
Solve the proportion
20/3 = ?/6
Answers
Answer:
40
Step-by-step explanation:
3 x 2 = 6 so then 20 x 2 = 40
9 of 12
Nasser is following this recipe to make flapjacks.
Nasser uses 0.9 kg of oats.
How many flapjacks is Nasser making?
Recipe: Makes 10 flapjacks
120 g margarine
100 g sugar
150 mL syrup
225 g oats
40 g sultanas
Answers
Answer:
40 flapjacks
Step-by-step explanation:
Given the recipe :
Recipe: Makes 10 flapjacks
120 g margarine
100 g sugar
150 mL syrup
225 g oats
40 g sultanas
Given that all other ingredients are kept Constant.
225g of oats produces 10 flapjacks
0.9 kg of oat = 0.9 * 1000 = 900g oat
If :
225 g = 10 flapjacks
900 g = x
Cross multiply :
225x = 900 * 10
225x = 9000
x = 9000 / 225
x = 40
40 flapjacks
find the value of v
Answers
Answer:
v = 38
Step-by-step explanation:
A parallelogram is a quadrilateral in which both sides are the same. That means that 2v is equal to v + 38, and you can solve this. You would get that 2v = v + 38, which means that v = 38.
Factorise fully
70
+ 7z
Answers
Answer:
7(z+10)
Step-by-step explanation:
it is factored fully now