Answers
Related Questions
3. A rectangular floor of dimensions
8.4 m x 5.4 m is to be tiled with right-
triangular marble pieces, with base 40 cm
and height 30 cm. How many marble
pieces will be required to cover the floor?
Answers
Answer:
area of the floor = 540*840.
=453600 cm sq.
area of the marbal piece = 1/2 * 40* 30 = 600 cm sq.
now,
no. of marble piece reqd. = 453600 / 600 = 756 marbal piece.
hope it helps u.
3x4 + 7x3 - x2 - 4x + 8
Answers
Negative 6x for info
2. A tree casts a shadow 25m long. At the same time, a signpost next
to the tree casts a shadow 6m long. The signpost is 3.5m tall. How
tall is the tree?
(10 pts.)
Answers
Answer:
The height of the tree is 14.85[tex]\bar 3[/tex] m
Step-by-step explanation:
The length of the shadow cast by the tree = 25 m
The length of the shadow cast by the signpost = 6 m
The height of the signpost = 3.5 m
Therefore, by similar triangles, we have;
Let θ, represent the angle formed by the line extending a line from the tip of the shadow, to the tip of the object and let x represent the height of the tree, we have
Tan(θ) = Opposite/Adjacent = Height of the object/(The length of the shadow)
∴ Tan(θ) = 3.5/6 = x/25
x = 25 × 3.5/6 = 14.58[tex]\bar 3[/tex]
The height of the tree = x = 14.85[tex]\bar 3[/tex] m
help somebody please , i’ll cash app you .
Answers
Answer:
Yes
Step-by-step explanation:
When you substitute
y: 11
x: -2
Substitute:
y=x+13
11=-2+13
11=11
This is always true.
Sasha missed 20% of the problems on Coach Bristo's Test. The test had a total of 85 problems. How many problems did Carrie get correct on the test?
Answers
Answer: 68 correct
Step-by-step explanation: 20% of 85 is the same thing as 85 times 0.2. that equals to 17. She got 17 wrong, so 85-17 equals to 68. She got 68 problems correct and 17 wrong.
The answer to this question is 68.
85 x 20%= 17
85 - 17 = 68
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
30
Step-by-step explanation:
How much was the decrease from Figure A to Figure B (let x be the decrease): 45x = 27Divide each by 45 to cancel out the 45 next to x. It should now look like this: x = 3/5To find x, we would normally multiply x by 3/5, but because we don't have x, we just DIVIDE 18 by 3/5: 18 ÷ 3/5 = 30So, x = 30I hope this helps!
X^2+12x+27/x^2-3x-18
how to solve step by step
Answers
if y varies directly as x and y = 3 when x = 24, find y when x = -16
Answers
Answer:
-2
Step-by-step explanation:
y/x=constant
3/24=y/(-16)
y=-2
HELPPPPPPP ASAPPPPPP #6 PLEASEEEEE
Answers
Answer:
B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
It's answer B because the amount that is added if equal to that that isn't.
Write an equation for the line parallel to the given line that contains C.
C(3,8); y = - 2x + 3
y =
(Type your answer in slope-intercept form.)
Answers
Answer:
?
Step-by-step explanation:
Answer:
your doing the same thing i just did but the answer is slope is 2x and intercept is 3
At a baseball game, 6 hotdogs cost $27. What is the cost of 1 hotdog? How many hotdogs can you buy for $18
Answers
Answer:
What is the cost of 1 hotdog?
Answer: $4.50
How many hotdogs can you buy for $18?
Answer: 4
Step-by-step explanation:
If $27 can buy you 6 hot dogs, to find the cost of one, we just divide.
27 divided by 6 = 4.5 ($4.50)
So 1 hotdog costs $4.50
If 1 hotdog is $4.50, and we want to know how much we can buy for $18, then we divide again.
18 divided by 4.5 = 4
So for $18, we can buy 4 hotdogs
the price of a necklace was increased by 10% to £150. what was the price before the increase
Answers
Answer:
$135
Step-by-step explanation:
10% of 150 = 15
150 - 15 = 135
Increased by 10%.
So, 150 x 0.10 = 15
The necklace was increased by £15.
The price before the increase is £150 - £15.
This amount is £135.
Alright, second part of Absolute Value Homework.. For part c i need a number line that looks like the one i have attached please. Help is MUCH appreciated!!!
Answers
Answer:
a. -0.01 < x - 8 < 0.01
b. 7.99 < x < 8.01
c. see attachment
d. Bolt has to be greater than 7.99 mm and less than 8.01 mm to be within the margin of error of 0.01 mm.
Step-by-step explanation:
-0.01 < x - 8 < 0.01
-0.01 < x - 8 and x - 8 < 0.01
7.99 < x x < 8.01
Write this as: 7.99 < x < 8.01
On graph the 7.99 and 8.01 are very near to each other and represented via open red circle.
Answer:
b. is 7.99 < x < 8.01
Step-by-step explanation:
Sorry, I don't know the other parts.
Alexis earns a weekly salary of $850 . She make 8% commission on all sales. This week she has $1200 in sales. What is the total amount of money Alexis earned for the week?
Answers
Answer:
12718001
Step-by-step explanation:
ur code:)
The world speed record on water was set on October 8, 1978 by Ken Warby. If Ken drove his motorboat a distance of 1500 m in 8.102s, how fast was his boat moving in meters per second and kilometers per hour? (2)
Answers
Answer:
The world speed record on water was set on October 8, 1978 by Ken Warby of Blowering Dam, Australia. If Ken drove his motorboat a distance of 1000 m in 7.045 s,
Step-by-step explanation:
i think this is it
Jason can travel 24 3/4 miles in a half an hour. what is the average speed in miles per hour?
Answers
1/2 hour - is time
V=S/t
24 / 0.5 = =49.5 miles per hour
an article after allowing a discount of 20% on its marked price was sold at a gain of 20% had it been sold after allowing 25% discount would have been of gain of rupees 125 find the Marked price of the article
Answers
Answer:
Rs 120
Step-by-step explanation:
Let MP = m
Discount = 25% of MP = m/4
SP = MP - Discount
= m - m/4 = 3m/4
If profit is 20%, CP = 3m/4 x 100/120 = 5m/8
=> Profit = 3m/4 - 5m/8 = m/8
Given Profit - Discount = Rs 15
=> |m/8 - m/4| = 15
m/8 = 15
m = Rs 120
Given that 529 × 3.8 = 2010.2
write a division with an answer of 5.29
Answers
Answer:
Step-by-step explanation:
2010.2/380= 5.29
Answer:
5.29 = 20.102 / 3.8.
Step-by-step explanation:
529 × 3.8 = 2010.2
So 529 = 2010.2 / 3.8
We need 5.29 on the left so we divide both sides by 100:
5.29 = 2010.2 / (3.8*100)
5.29 = 20.102 / 3.8
At Creekland Middle School, there are 5 art classes with 24 students in each class. How many students altogether are in the art classes?
Answers
Answer:
120
Step-by-step explanation:
Okay you take the 24 students in each class
Then you take the 5 art classes in the school
Then you take the 5 and 24 and multiply them
And the sum of that is 120 and there
Jessica has an account with a credit union. Her account earns 2.7% simple interest yearly. Exactly a year and a half ago, she opened her account with $900.
Answers
$24.30 divided by 2 = $12.15
$24.30 + $12.15 = $36.45
Answer : $936.45
Divide 192kg in the ratio of 5:3.
Answers
Answer:
120 Kg : 72 Kg
Step-by-step explanation:
Sum the parts of the ratio, 5 + 3 = 8 parts
Divide the quantity by 8 to find the value of one part of the ratio.
192 Kg ÷ 8 = 24 Kg , thus
5 parts = 5 × 24 Kg = 120 Kg
3 parts = 3 × 24 Kg = 72 Kg
192 Kg = 120Kg : 72 Kg in the ratio 5 : 3
3. A googol is a very large number expressed as
10100. Ms. Rogers asked her students to
determine which number is larger, a googol
or 10010. Explain how her students might use
the idea of repeated factors in order to find
the solution.
Answers
Answer:
10^100 is larger than 100^10.
Step-by-step explanation:
10^100 compared to 100^10, we have 10^100 greater. 100^50 would equal to 10^100, as 10^2=100. 10^100 would be much more than 100^10.
Hope the explanation helps!
Factor the expression
70 + 95
Answers
Answer:
70+95
70=2*5*7
95=5*19
70+95=(5*2*7)+(5*19)=(5*14)+(5*19)=5*(14+19)=5*(33)
5*33=165 and 70+95=165 also
Answer:
70+95
70=2*5*7
95=5*19
70+95=(5*2*7)+(5*19)=(5*14)+(5*19)=5*(14+19)=5*(33)
5*33=165 and 70+95=165
Step-by-step explanation:
Cliff Alsworth spent $369.75 for utilities in April, $330.90 for utilities in May, and $297.00 for utilities in June. What was Cliff's average monthly expenditure fro utilities for those three months? *
$997.65
$327.80
$332.55
$330,90
PLEASEE ITS A TEST
Answers
$997.65 divided by 3 = $332.55
Answer : $332.55
Answer:
$332.55
Step-by-step explanation:
In order to figure our Cliff Alsworth's average monthly spendings on utilities, we need to add the amount he's spent each month, and divide it by the amount of months he bought utilities.
369.75 + 330.90 + 287.00 = 997.65
997.65 / 3 = 332.55
Therefore, the average Cliff's average payment for utilities is $332.55 per month. Hope you ace your test! :)
84.695 to 1 significant factor
Answers
Answer:
___
= 80
I hope this helps you, and i hope you have a nice day.
Simplify Simplify Simplify
Answers
Answer:
[tex]2 \sqrt{6} [/tex] (second option)
Step-by-step explanation:
[tex] \sqrt{24} [/tex]
[tex] \sqrt{ {2}^{2} \times 6 } [/tex]
[tex] \sqrt{ {2}^{2} } \sqrt{6} [/tex]
[tex] \sqrt{ {2}^{2} } = |2| = 2[/tex]
[tex] = 2 \sqrt{6} [/tex]
Answer:
2√6
Step-by-step explanation:
Because 2 multiplied by itself is 4
4 times 6 is 24
You multiply 2 by itself is because of the square root
Square roots are the opposite of exponents
Just like how addition is the opposite of subtraction
2^2 is 4
√4=2
Since 24 has a 4 in its multiple you can simplify it into 2 and put it on the outside
Hope this helps!
Rewrite the following without an exponent
(2/3) ^ -3
Answers
Answer:
3.375 or [tex]\frac{27}{8}[/tex] (they're the same)
I hope this helps!
WILL MARK BRANLIEST!! URGENT
Happy Paws charges $20.00 plus $4.50 per hour to keep a dog during the day. Woof Watchers charges $11.00 plus $5.75 per hour. Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the variable h to represent the number of hours.
The equation is: ______=______
The total cost of the services will be equal at __ hours.
Answers
Answer:
The equation is: 20 + 4.5h = 11 + 5.75h
The total cost of the services will be equal at 7.83 or 8 hours.
Step-by-step explanation:
This equation is correct because it shows that these two scenarios equal the same amount of money when there is a certain amount of hours, or "h."
Here is how we solve the equation;
20 + 4.5h = 11 + 5.75h <-----Here is the original equation.
Service A Service B
1. 20 - 20 + 4.5h = 11 - 20 + 5.75h
2.4.5h - 5.75h = -1.15h -9 + 5.75h/5.75 =
3. -1.15h/-1.15 = h 9/-1.15 = 7.83
h = 7.83 or 8 hours when rounded to the nearest hour
Hope this helps! :)
What is the least common multiple (LCM) of 7 and 9?
A.
120
B.
16
C.
63
Answers
Answer:
63 is the least common multiple of 7 and 9
Step-by-step explanation:
There is no number smaller than 63 that could be used as the the least common multiple so multiply 7 and 9. My friend daffy duck told me, math is mystery.
Pretend you are living five hundred years in the future. Write a one-page diary entry describing what you encounter in a typical day. Do you enjoy your life? What kind of friends do you have? What type of activities are you involved in? What kind of problems, if any, do you experience?
Answers
Step-by-step explanation:
Imagining living a life for five hundred years in the future, can have two perspectives considering the reality of today's society.
Let us suppose that we currently overcome all challenges related to preserving the environment, sustainable consumption, violence, and racial discrimination. Well, considering that point of view, a typical day five hundred years from now would be a lot of fun, I imagine that we would have great biodiversity preservation centers, people would be more cordial with others, everyone would have access to education and essential rights, and we would use more bicycles as a means of transport, because even if they had already managed to invent teleportation, the bicycle would still be a good option for the practice of physical exercises.