Answer: what is the question
Step-by-step explanation:
Ratio And Proportion
If 8 engines consume 12000 kgs. of coal when each running 10
hours per day, how much coal is required for 7 engines out
which 5 are running 12 hours a day and the rest 6 hours a day?
Answer:
11200 for 7 engines for a total of 80 hours
Step-by-step explanation:
You have 8 engines burning 12000 .for 10 hours.
Divide 10 hours into 12000=1200 PER hour.
1200 ÷8 engines = 140 per hour per engine.
140 × # of hours (12)=1680 for 12 hours per engine.
# of engines × 1680 for 12 hour/per engine
5×1680 = 8400 of fuel for 12 hours/5 engine
Then you have 2 that runs 10 hours
2 × 140 per hour per engine =280 × 10 =2800 for 2 engines for 10 hours
8400. + 2800= 11200 of fuel for 6 engines
Find the distance between ( 1, 3) and (5, 6)
Answer:
Step-by-step explanation:
1, 3
5, 6
subtract
4 x
3 y
4^2 + 3^2 = 5^2
so the distance is 5 units
The radius of a circle is 15 m. Find its area in terms of
π.
Answer:
A = 225[tex]\pi[/tex] or A = 706.858
Step-by-step explanation:
The formula to find the area of a circle is A=[tex]\pi r^{2}[/tex], with r being the radius.
In this case, 15 is your radius, so you just replace r with 15, like so:
A=[tex]\pi 15^{2}[/tex], then simplify [tex]15^{2}[/tex]
A = [tex]225\pi[/tex]
From here you can leave the answer in its exact form, [tex]225\pi[/tex], or you can simplify it by multiplying 225 times pi. In that case, your answer would be: 706.858 (rounded to the thousanths place).
If radius of a circle is 15 m then the area of circle is 225π square units.
What is Circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
Given that radius of a circle is 15m.
We have to find the area of the circle.
The formula for area of the circle is A=πr²
Given r is 15
Substitute r=15 in the area formula.
A=π(15)²
=π×15×15
=225π
Hence, if radius of a circle is 15 m then the area of circle is 225π square units.
To learn more on Circles click:
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Why can you take the cube root of a negative number?
Answer:
you can because the real cube root of any negative real number is negative.
Step-by-step explanation:
Answer: The reason that we can't have the square (or quartic) root of a negative number is that two negatives always cancel to give a plus; so the square root of a negative number is undefined. ... The Real cube root of any negative Real number is negative.bc. a negativ number multiplied by it self 3 time result negativ too
hope this helps ❤️
Step-by-step explanation:
Can anybody help with these? It’s trigonometry
Answer:
1 is 17
Step-by-step explanation:
2 is 15. Mark me BRAINLISTESLD
Write the equation of a line with a slope of 3 and a y-intercept of 0
Answer:
y = 3x
Step-by-step explanation:
You had $24 to spend on three notebooks. After buying them you had $12. How much did each notebook cost?
(also show how you found out the answer))
Answer:
Each notebook would cost around $4
Step-by-step explanation:
24-12=12
seeing how you spent $12 on buying 3 books you'd divide
12÷3=4
meaning each book would cost around $4
Answer:
Each notebook cost $
Step-by-step explanation:
Hi :)
If the three books in total cost $12, then that means she had $12 leftover.
The equation:
3x + 12 = 24
-12 on both sides
3x = 12
divide by three on both sides
x = 4
hope this helps :)
Someone plz help me giving brainliest!!
Answer:
9/16 square yd
Step-by-step explanation:
Answer:
it would be three yards for the area
Step-by-step explanation:
when i first saw this i thought it said elmo
I need help on this fast please
Can someone help me with this?
Answer:
True
Step-by-step explanation:
it is 3/5. Than 6/10 is equal to 3/5. Than 9/15 is equal to 3/5.
Answer: True
Step-by-step explanation:
That is true because let's take the first point for example.
3 cups of almonds for 5 cups of oats.
3/5 of 5 is 3
So that's correct.
If you still aren't sure you should try that with a different point. Hmm how about :
9 cups of almonds for 15 cups of oats
3/5 of 15 = 45/5 = 9
That's correct as well.
Hope these helps!
HELP! What is the value of x? (Picture)
Answer:
c. 45
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
90 degree angle - the 10 degrees = 80
divide by 2 because 2x=80 and get 40
find the measure of angle k
Step-by-step explanation:
6x-11+8x-29+3x-1= 180
17x-41= 180
17x = 139
x= 8.17
m<K = 36.4°
Jose bought a computer that cost $1,200. He paid $400 down and will pay $50 per week until the balance is paid off. Solve the equation 400 + 50w = 1,200 to find the number of weeks w it will take Jose to pay off the computer.
A.
32 weeks
B.
16 weeks
C.
53 weeks
D.
26 weeks
Answer:
B. 16 weeks
Step-by-step explanation:
all you have to do is subtract $1,200 - $400 = 800. then you take 800 and divide it by 50. 800/50 = 16. i hope this helped :)
Help ASAP!! I have to turn this in soon
Answer:
AFE = 180
CFE = 105
BFD = 130
BFD is a obtuse angle
Step-by-step explanation:
Change 7800 grams into kilograms.
Answer:
That would be 7.8
What is the coefficient of f in the expression 4b-f
A.–1
B.0
C.1
D.4
Answer:
C
Step-by-step explanation:
C, because if you just have a random variable like x,y,z there's always an imaginary 1 in front of them.
The moon has a radius of 1,079 miles. What is the circumference of the moon? Express your answer in terms of π.
The circumference of the moon is 2158π miles.
What are the circumference and diameter of a circle?The circumference of a circle is the distance around the circle which is 2πr.
The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.
We know the perimeter or the circumference of a circle is 2πr, Where r is the radius.
Therefore, The perimeter or the circumference of the moon with a radius of 1079 miles is,
= 2×π×1079 miles.
= 2158π miles.
learn more about circles here :
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What value of z makes the equation below true?
5z– 2 = 43
Answer:
5z– 2 = 43
5z=43+2
z=45/5=9
9 makes the equation below true
3
5
7
12
14
Input/Output Table
a
Anna's Dog(A) Sara's Dog(S)
6
1
dragande ನಿಣ 140
2
8
dan
10
ஒல்பema
7
6
Answer:
Anna's dogs (A) Sara's dogs (S)
6 1
(7) 2
8 (3)
10 (5)
(12) 7
(14) 9
Step-by-step explanation:
The numbers in parenthesis is the right numbers
Find the value of r: (-2, r), (6, 7), m = 1/2
Answer:
R=3
Step-by-step explanation:
Parker is preparing snacks for the
children at a day camp. He has
48 carrot sticks and 36 apple slices.
Find the number of identical snacks he
can prepare if he puts as much food into
each snack as possible without any
leftovers. Then describe the snack.
Answer:
4 carrots and 3 apple Brainiest please? Took me a long time :)
8 carrots and 6 apple
12 carrots and 9 apple
16 carrots and 12 apple
20 carrots and 15 apple
24 carrots and 18 apple
28 carrots and 21 apple
32 carrots and 24 apple
36 carrots and 27 apple
40 carrots and 30 apple
44 carrots and 33 apple
48 carrots and 36 apple
PLEASE HEEEELPPPP ASAP
Answer:
The solution of the first image is: b = √48
The solution of the second image is: c = √125
Step-by-step explanation:
Here we have two triangle rectangles, first, we need to remember the Pythagorean theorem.
For a triangle rectangle with cathetus A and B, and a hypotenuse H, we have the relationship:
A^2 + B^2 = H^2
Where H is the side that is opposite to the right angle (the angle of 90°)
In the first image, we can see that the hypotenuse is equal to 8, and one cathetus is equal to 4.
We want to find the value of b, that is the other cathetus.
Then we have:
4^2 + b^2 = 8^2
b^2 = 8^2 - 4^2
b^2 = 48
b = √48
Second image:
in this case, c is the hypotenuse, a and b are the cathetus.
We know that:
a = 5, b = 10
Then we have the equation:
a^2 + b^2 = c^2
Now we can replace the above values:
5^2 + 10^2 = c^2
25 + 100 = c^2
125 = c^2
√125 = c
6.
Eight coins are all dimes or nickels,
totalling 65 cents. How many are
there of each?
Answer:
3 nickels and 5 dimes
Step-by-step explanation:
3 nickels = 15 cents
5 dimes = 50 cents
50 + 15 = 65 cents
Answer:
5 dimes and 3 nickels
Step-by-step explanation:
5 times 10 is 50
3 times 5 is 15
15 plus 50 is 65
The length of a rectangle is 3 yd longer than its width.
If the perimeter of the rectangle is 30 yd , find its area.
PLZ HELP
What is the value of x?
Enter your answer in the box.
x =
Answer:
X = 62°
Step-by-step explanation:
Since opposite or vertical angles are equivalent, you can form the equation that 28 + x = 90 (In case you didn't know, right angles are always 90°). Subtract 28 from both sides to find the value of x and you'll get x = 90 - 28 or x = 62°.
a bag contains 4 blue and 6 green marbles. two marbles are selected at a random from the bag. if the first marble is not replaced before the second marble is drawn
Answer:
4 ÷ 10
Step-by-step explanation:
The computation of P is shown below:
If we add two marbles i.e.
= 4 + 6
= 10 marbles
Now if we draw the second marble
P(blue) = Blue marbles ÷ total marbles
= 4 ÷ 10
In the other case
P( blue second given a green first) = 4 ÷ 10
Help I am in fourth :(
Answer:
7.6= 76 x 10 to the power of 1
760= 76 x 10 to the power of 1
7600= 76 x 10 to the power of 2
Step-by-step explanation:
A. {-3, 7, 8, 12}
B. {-8, -3, 5, 7}
C. {6, 8, 10, 12}
D. {-8, -3, 5, 6, 7, 8, 10, 12}
pls help for this question sssssssss
Answer:
(16√75)/(5√12) = 8
Step-by-step explanation:
Answer:
16√75÷5√12
= 8
Step-by-step explanation:
Hope it is helpful.....
please answer all question
Answer:
I know the answer
Step-by-step explanation: