Answer:
The equation required to find the volume of concrete is:
L X W X H.
Step-by-step explanation:
L = Lenght
W = Width
H = Height
To calculate the required volume for concrete, you'd need to multiply the measures of all the dimensions together such as the lenght and the breath (which gives you the Area) and the thickness or height of the staircase.
If the calculation is being expressed in Feet, the answer will also be expressed as Volume of concrete in Cubic feet.
Cheers
Box A weighs 1.4 pounds, box B weighs 3.2 pound, and box C weighs 2.5 pounds. What is the combined weight of box A and Box C?
Answer:
3.9 pounds
Step-by-step explanation:
Box A=1.4 lbs
Box B=2.5 lbs
Answer= Box A + Box B = 1.4+2.5 lbs
1.4+2.5= 3.9 lbs
The value of a car decreases by 5% each year. Sophie bought a car two years ago for £10000. Work out the value now.
Given:
The value of car before two years = £10000
The value of the car decreases by 5% each year.
To find:
The present value of the car.
Solution:
The exponential decay model for present value is
[tex]y=a\left(1-\dfrac{r}{100}\right)^t[/tex]
Where, a is the initial value, r is the rate of decay and t is time in years.
Putting P=10000, r=5 and t 2, we get
[tex]y=10000\left(1-\dfrac{5}{100}\right)^2[/tex]
[tex]y=10000\left(1-0.05\right)^2[/tex]
[tex]y=10000\left(0.95\right)^2[/tex]
On further simplification, we get
[tex]y=10000(0.95)(0.95)[/tex]
[tex]y=9025[/tex]
Therefore, the present value of the car is £9025.
Find the slope of the line that passes through (0, -5) and (3, -4)
Answer: I believe it is 2
slope=y2-y1/x2-x1
y2-y1= (0,-3)
x2-x1= (4,5)
m=5-(-3)/4-0
m=2
What is the area of this
composite figure?
A. 112 square inches
B. 110 square inches
C. 124 square inches
3h + 4, where h = 7 pls help
Answer:
25
Step-by-step explanation:
3 (7) + 4 =
21 + 4 = 25
good luck, hope this helps :)
Answer:
25
Step-by-step explanation:
1. we need to substitute h
so it would look like:
[tex]3(7)+4\\21+4\\25[/tex]
Hope this helps and answers your question! Have a great day/night!
help please i need you
Answer:-10hy-4h
Step-by-step explanation:
h*-10y and h*-4
what is the answer to the question -6=n+5n
Answer:
-1=n I believe would be the answer.
PLEASE SHOW WORK ILL GIVE BRAINLIEST DUE TODAY!!!
14 + 18 ÷ 2 x 18 – 7
15 x 10 + 12 ÷ 3 + 9
8 x 4 + 9 – 9 + 18
2 - 1 + 5 x 4 x 11
60 – 9 x 8 ÷ 8 x 6
(10 ÷ 5)3 + 100 – 9 x 11
3 x 8 x 2 – 42 + 5
14 ÷ 2 -1 + 3
Answer:
1.) 169
2.) 63
3.) 50
4.) 221
5.) 6
6.) 501
7.)11
8.) 9
Step-by-step explanation:
sorry i dont have time for the explanation. :( i hope i helped you still
In ΔJKL, k = 4.1 cm, j = 3.8 cm and ∠J=63°. Find all possible values of ∠K, to the nearest 10th of a degree.
Given:
In ΔJKL, k = 4.1 cm, j = 3.8 cm and ∠J=63°.
To find:
The value of ∠K to the nearest 10th of a degree.
Solution:
According to the Law of Sine:
[tex]\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}[/tex]
We have, In ΔJKL, k = 4.1 cm, j = 3.8 cm and ∠J=63°.
Using the Law of Sine, we get
[tex]\dfrac{j}{\sin J}=\dfrac{k}{\sin K}[/tex]
[tex]\dfrac{3.8}{\sin (63^\circ)}=\dfrac{4.1}{\sin K}[/tex]
[tex]3.8\sin K=4.1\sin (63^\circ)[/tex]
[tex]\sin K=\dfrac{4.1\sin (63^\circ)}{3.8}[/tex]
[tex]\sin K=0.961349[/tex]
[tex]K=\sin^{-1}(0.961349)[/tex]
[tex]K=74.0182[/tex]
[tex]K\approx 74.0[/tex]
Therefore, the measure of angle K is 74.0 degrees.
Jonathan drives 845 miles in 5 hours. What is his average rate of speed in miles per hour?
Answer:
ok so it is 169
Step-by-step explanation:
ok i hope this is correct i used a calculator so sorry if its wrong all i did was divide some stuff
if its correct can u give me the crown
if u dont want to thats alright
i divided 845 and 5 and got 169
help me please I need
Answer:
I think the answer is A=49
Which fraction does point A show?
A.3/7
B.3/4
C.8/5
D.7/4
Answer:
d 7/4
Step-by-step explanation:
$420 is divided between A, B and C. B receives $20 less than A, and C receives half as much as A and B together. how much does each receive?
Also could you explain the answer?
Answer:
A = $150
B = $130
C = $140
Step-by-step explanation:
Let the amount received by a be $x
b receives $20 less than a;
we have that;
b = x - 20
c receives half of Sum A and B
c = (x + x-20)/2
c = (2x-20)/2
c = x - 10
Add all and it gives 420
x - 10 + x -20 + x = 420
3x -30 = 420
3x = 420 + 30
3x = 450
x = 450/3
x =$150
a = 150
b = x - 20; 150 - 20 = 130
c = x-10
c = 150-10
c = $140
Write the following mixed number as an improper fraction.
1 1/5
Answer:
6/5
Step-by-step explanation:
1 would equal 5/5 so add another 1 to get 6/5
what is the
mode
median
mean
and range
to the numbers 24,34,32,16,45,38,28
Answer:
The mean is 31
The mode is In this case there is no mode
The median is 32
The range is 29
Here are the first five terms of a number sequence
19
23
27
31
35
Find the 10th term in the sequence
Find the value of x.
140°
40°
2x
O A. 50
O B. 70
O C. 20
O D. 90
Please help
Answer:
140/90
Step-by-step explanation:
:>
Answer: A. 50
Step-by-step explanation:
An older person is 8 yes older than seven times the age of a younger person. The sum of their ages is 32. What are their ages?
The markings on the number line are evenly spaced. Label the other markings on the number line.
Answer:
A= -75
B= -60
C= -45
D= -15
E= 15
F=30
Step-by-step explanation:
Each point is 15 away, so you just add or subtract 15 based off of if it's a negative or positive number on the number line.
Hope this helped!
how do you do this? its a 5 mark question
Answer:
336
Step-by-step explanation:
12*28
Tom has a 4-sided spinner and the table below shows the probabilities
that when the spinner is spun it will land on 1, 3 and on 4
Number
1
2
3
4
Probability
0.1
0.2
0.4
The spinner is spun once.
a) What is the probability that the spinner will land on 2?
Il
(1)
b) Which number is the spinner least likely to land on?
(1)
c) If Tom spins the spinner 80 times, work out an
estimate for the number of times the spinner will land on 3
(2)
Answer:
0.3
Step-by-step explanation:
it's the only one not there
1.2.1
Question Help
An airplane on autopilot took 8 hours to travel 5,616 kilometers. What is the unit rate for kilometers per hour?
The unit rate is kilometer(s) per hour.
va
vo
()
X
More
Enter your answer in the answer box and then click Check Answer.
All parts showing
Clear All
Check Answer
Review progress
Question 1
of 12
Back
Next →
x+3>70
Please helpp plzzzzzz
Answer:
x>67
So basically what you do is subtract 3 from each side :)
Cristal had $157 in her checking account. She then made a deposit of $160. Find her new account balance.
Answer:
$317
deposit: add
157+160= 317
A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS a classical CD?
Answer:
The probability is 6/42. If you need it simplified it's 1/7.
Step-by-step explanation:
If it's wrong please let me know :)
solve the equation (x over x+2) - (4 over x-2) = 1
Answer:
[tex]\frac{x}{x+2} - \frac{4}{x-2}=1\\or, \frac{x(x-2)}{(x+2)(x-2)} -\frac{4(x+2)}{(x+2)(x-2)}=1\\or, \frac{x^2-2x}{x^2-4} -\frac{(4x+8)}{x^2-4} =1\\or, \frac{x^2-2x-(4x+8)}{x^2-4} =1\\or, \frac{x^2-2x-4x-8}{x^2-4}=1\\or, {x^2-6x-8} =x^2-4\\or, -6x-8=-4\\or, 3x+4=2\\or, 3x = -2\\or, x =\frac{-2}{3}[/tex]
what is 8333333333/100000000000 simplified? It might be hard but I need help and it's for tonight. Thanks!
Find m < E (Image Below)
Answer:
uiuiuiui86767
Step-by-step explanation:
your answer is e330408384
If the probability that Caleb makes a free-throw is 60% what is the probability that Kayla makes two free throws in a row?
Work out the value of 54
18 − 6
5418-6= 5412
Hope this helps
