Answer:
160
Step-by-step explanation: Once you multiply 14 ft x 15 ft you get 210 ft. But already done 50 you subtract it and get 160.
A new sidewalk will be 5 feet wide, 240 feet long, and filled to a depth of 9 inches (0.75) with concrete. How many cubic yards of concrete are needed?
In order to build the sidewalk, they would need around 33 yrds^3 of concrete. This is because the problem is asking for the volume of the sidewalk. First, we need to convert everything into yards. The final answers we would get would be (5/3) (80) and (0.25). If we were to use the formula for volume, it would be V=lwh. With that incorporated, the answer would be 33.3333333 yrds^3 of concrete to be exact.
The volume of the sidewalk can be calculated using the formula for the volume of a rectangular prism, V = length x width x depth. The volume in cubic feet is then converted to cubic yards as concrete is sold in cubic yards. Therefore, approximately 33.3 cubic yards of concrete are needed for the sidewalk.
Explanation:To calculate the amount of concrete needed for a sidewalk, we first need to find the volume of this sidewalk in cubic feet and then convert it to cubic yards because concrete is usually sold in cubic yards. The given dimensions of the sidewalk are 5 feet wide, 240 feet long, and a depth of 0.75 feet (9 inches).
The volume (V) of a rectangular prism (which in this case is the sidewalk) can be calculated using the formula V = length x width x depth. Therefore, V = 5 ft (width) x 240 ft (length) x 0.75 ft (depth) which gives us 900 cubic feet.
Next, we need to convert cubic feet to cubic yards because concrete is sold in cubic yards. One cubic yard is equivalent to 27 cubic feet. Therefore, the volume of concrete in cubic yards is 900 cubic feet ÷ 27 = 33.3 cubic yards. So, you will need approximately 33.3 cubic yards of concrete to build this sidewalk.
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the temperature was 80 degrees and then fell 20 degrees
60 degrees?
hope this helps
If the temperature was 80 and it fell to 20 you need to subtract 20 from 80 than giving you the difference in temperature witch is 60 degrees difference.
FINAL ANSWER 60 Degrees Difference.
Hope that helps
Daniel
What is the difference from -83883838838383888-88888888939393
Place value of 6 in 2.675 and 1 in 804.721
Trevor plans on buying a car. Four banks offer the annual interest rates shown.
Which list shows these interest rates in order from greatest to least
3 1/10%, 3 2/5%, 3 1/4%, 3 1/3%
Solution
In order to find greatest to least number, we have to convert the given fractions into decimals.
3 [tex]\frac{1}{10}[/tex] % = 3 + 1/10 = 3 + 0.10 = 3.10%
3 [tex]\frac{2}{5}[/tex]% = 3 + 2/5 = 3 + 0.40 = 3.40%
3 [tex]\frac{1}{4}[/tex] %= 3 + 0.25 = 3.25%
3 [tex]\frac{1}{3}[/tex]% = 3 + 0.33 = 3.33%
Now we can easily, compare the numbers and write from greatest to least.
3.40%, 3.33%, 3.25%, 3.10%
Greatest to least = 3 2/5%, 3 1/3%3, 3 1/4%, 1/10%,
Thank you :)
Answer:
3 2/5%, 3 1/3%, 3 1/4%, 3 1/10%
Step-by-step explanation:
Which of the following is usually the first step in solving a system of nonlinear equations by substitution
Answer:it is isolating one of the variables...
Step-by-step explanation:
Apex
Answer:
isolating the variable
Step-by-step explanation:
What could you do to describe the following data, showing temperatures for the week? (Check all that apply.)
Mon - 65°
Tues - 67°
Wed - 66°
Thur - 70°
Fri - 72°
Sat - 68°
Sun - 69°
Construct a line graph.
Find the mean, median, mode, and range.
Construct a stem-and-leaf plot.
Survey people about the weather.
Hi!
Here is the leaf plot:
6 ║ 5, 6, 7, 8 , 9
7 ║0, 2
Raphael is twice as old as his sister is. The sum of their ages is less than 30. What is the greatest age Raphael’s sister can be?
The greatest age Raphael's sister can be is 9 years old.
The greatest age Raphael's sister can be is 11 years old.
The greatest age Raphael's sister can be is 20 years old.
The greatest age Raphael's sister can be is 10 years old.
Lets solve each one :
If she is 9 :
9 times 2 = 18 + 9 = 27
If she is 11 :
11 times 2 = 22 + 11 = 33
If she is 20 :
20 times 2 = 40 + 20 = 60
If she is 10 :
10 times 2 = 20 + 10 = 30
You pick your answer :)
I hope this helped!
Have a great day!!!
The greatest age Raphael's sister can be is 10 years old.
What is an equation?An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =
Given that, Raphael is twice as old as his sister is. The sum of their ages is less than 30.
Let the age of Raphael's sister be x,
2x + x = 30
3x = 30
x = 10
Hence, The greatest age Raphael's sister can be is 10 years old.
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Given the graph of a line y=−x. Write an equation of a line which is perpendicular and goes through the point (8,2).
Answer:
y = x - 6
Step-by-step explanation:
The slope of y = -x is -1, so the slope of any line perpendicular to y = -x is +1. Thus,
y = mx + b becomes 2 = 1(8) + b, so that b = -6.
The desired equation is y = x - 6.
Check: Does (8,2) lie on this line? Is 2 = 8 - 6 true? YES.
Answer:
Y=X-6
Step-by-step explanation:
JOOOHNNNNN CENNAAAAA
Type the integer that makes the following subtraction sentence true:
9 - ? = 17
Someone please help me with this!!
PEMDAS tells us to use multiplication and division before addition and subtraction.
-5(8) ÷ 10 - 14 ÷ 7 - (-2)(3)
-40 ÷ 10 - 2 - -6
-4 - 2 + 6 two negatives make a positive so - - 6 = + 6
-6 +6
0
Answer: 0
An airplane started at 0 feet. It rose 21000 feet at takeoff. It then descended 4329 feet because of clouds. After the oncoming plane passed, it descended 8453 feet, at what altitude was the plane flying?
The fact that an oncoming plane passed is irrelevant to what we need to find, so we can ignore that.
The math statement it's asking you to solve is this:
0+21000-(4329+8543)
The reason we are adding 4329 and 8543 is to make it easier on the subtraction. Since both of those terms are being subtracted, we can combine them to make our problem one step shorter.
After simplifying the parentheses, we get:
21000-12872
After this it becomes simple subtraction to find the answer.
8128 is the answer, so your answer would be:
The plane is now flying at an altitude of 8,128 feet.
Answer:
Ur answer is
The plane was flying at 8,218 feet altitude
Step-by-step explanation:
This is easy u start off with 21,000 then subtract as needed
21,000-4329=16,671
16,671-8,453=8,218
So ur answer is 8,218
Use the partial quotient to solve 673÷5
What is the cube root of a number x is denoted by ?
[tex]\sqrt[3]{x}[/tex]
The cubed root of x is written as:
[tex]\sqrt[3]{x}[/tex]
FYI: You need THREE like terms on the inside of the radical to move the term to the outside.
Zach has 3/4 hour play video games. It takes him 1/12 hour to set up the stystem. Each round of his favorite game takes 1/6 hour. How many rounds can he play.
He can play 4 rounds. If you find a common denominator, it would end up with 9/12 of an hour to play and then you subtract the 1/12 it took to set it up. this leaves you with 8/12. but, it takes 2/12 of an hour to play each round. so 8 divided by 2 is 4. Which is where the 4 rounds is from!
Darcy and Leah are looking at some fabric selections in a store. All of the selections are marked the same price, and the amount, in yards, of each fabric is written as an improper fraction. Which amount is the greatest?
A. 43⁄5
B. 78⁄9
C. 33⁄4
D. 22⁄3
B)
A= 8.6
B=8.66666...
C=8.25
D=7.33333...
(10 points) State the relationship between segments MA and TH. Explain.
Find the totals of both Angle s A and T by adding the 2 angles in each corner:
Angle A = 58 + 32 = 90 degrees
Angle T = 46 + 44 = 90 degrees.
Becuase both these angles are 90 degrees Lines AM and TH are parallel.
Can anyone help me? I would really appreciate it. Thanks in advance.
∠AKJ ≅ AIH because they are corresponding angles
60° = AIH by substitution
ΔAIH
∠A + ∠I + ∠H = 180° per the triangle angle sum theorem
x + 60 + 56 = 180 substituted known values
x + 116 = 180 added like terms
x = 64 subtracted 116 from both sides
Answer: 64°
There was a beautiful Japanese garden. Within the garden, there is a pond. Since the beginning of summer, lilies have started to cover more and more of it with every passing day. In fact, the quantity of lilies doubles every day. By day 58, the entire pond will be covered. How many days will it take the lilies to cover half the pond?
Answer:
57 days
Step-by-step explanation:
Given that there was a beautiful Japanese garden.
Also given that within the garden, there is a pond.
Since the beginning of summer, lilies have started to cover more and more of it with every passing day.
In fact, the quantity of lilies doubles every day.
By day 58, the entire pond will be covered.
Since given that every day lilies double, we find that if on 58th day it was full, then exactly one day before it should be 1/2 of pond. In that case only, on 58th day pond can become full.
Hence half pond is filled with lilies in 57 days.
The some of three consecutive integers is 33 more than the least of the integers. Find the integers
Let the smallest number = x
The next higher number would be x +1
The 3rd number would be x +2
The sum of the 3 numbers: x + x+1 + x+2
33 more than the smallest number is written as x+33
Now you have:
x + x+1 + x+2 = x+33
Simplify the left side:
3x +3 = x +33
Subtract 3 from each side:
3x = x +30
Subtract 1x from each side:
2x = 30
Divide both sides by 2:
X = 30/2
x = 15
The three numbers are 15, 16 and 17
Greta uses 6 ounces of pasta to make 6 /7 of a serving of pasta. How many ounces of pasta are there per serving?
Answer:
7
Step-by-step explanation:
We know that since 6 ounces creates 6/7 of a serving, that basically says that 1/7 of a serving is created with 1 ounce of pasta. So if there were 7 ounces of pasta, that would make 7/7 servings and that would be 1 serving
find the derivative of x2/8-8x
[tex]h(x)=\dfrac{x^2}{8-8x}\\\\h'(x)=\left(\dfrac{x^2}{8-8x}\right)'\\\\\text{use}\ \left(\dfrac{f(x)}{g(x)}\right'=\dfrac{f'(x)g(x)-f(x)g'(x)}{[g(x)]^2}\\\\f(x)=x^2\to f'(x)=(x^2)'=2x\\\\g(x)=8-8x\to g'(x)=(8-8x)'=-8\\\\\text{substitute}\\\\h'(x)=\dfrac{2x(8-8x)-x^2(-8)}{(8-8x)^2}=\dfrac{16x-16x^2+8x^2}{(8-8x)^2}=\dfrac{16x-8x^2}{(8-8x)^2}[/tex]
A box o 25 light bulbo is shipped to a hardware store when it arrives four of the bulbs are broken predict the number of broken Light bulbs in an order of 125 bulds
A play is performed for a crowd of 400 people. Adult tickets cost $22 each, student tickets cost $15 each, and tickets for children cost $13.50 each. The revenue for the concert is $7840. There are 40 more children at the concert than students. How many of each type of ticket are sold?
Answer:
280 adult tickets, 40 student tickets and 80 children tickets were sold.
Step-by-step explanation:
To solve this problem let's call:
x = number of tickets for adults
y = number of tickets for students
z = number of tickets for children
The income for the concert is $ 7840
Then we can raise the following equations according to the given conditions:
[tex]x+y+z = 400[/tex] (i)
[tex]22x+15y +13.50z = 7840[/tex] (ii)
There are 40 more children in the concert than students:
So:
[tex]z=40+y[/tex] (iii)
We then have 3 equations and 3 unknowns:
To solve the system we multiply the equation (i) by -22 and add it to the equation (ii)
So:
[tex]-22x-22y-22z=-8800[/tex]
+
[tex]22x+15y +13.5z =7840 [/tex]
[tex]-7y-8.5z = -960[/tex] (iv)
Now we multiply (iii) by 7 and add it to (iv)
[tex]7y-7z = -280 [/tex]
+
[tex]-7y-8.5z = -960[/tex]
[tex]-15.5z = -1240 [/tex]
[tex]z = 80[/tex] (v)
We substitute (v) in (iv) and we have
[tex]y = 40[/tex] (vi)
We substitute (v) and (vi) into (i) and we have:
[tex]x =280[/tex]
280 adult tickets, 40 student tickets and 80 children tickets were sold.
How many two-thirds are in four-thirds
2 two-thirds are in four-thirds because 4 divided by 2 is 2
the cost of 500000 worth of 30 year term life insurance for Edna is $121.04 per month if Edna's employer covers 80% of this cost how much is deducted from Edna's gross income per year for life insurance?
Answer:
$290.50
Step-by-step explanation:
121.04 * 80% = 96.832
121.04 - 96.832 = 24.208
24.208 * 12 = 290.496 ~ 290.50
13_,644 130,000 this # was rounded to nearest ten thousand list the possible digits that could go in the thousands place to make this statement correct
We have two rules in case of rounding off digits,
Rule 1:
If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40.
Rule 2:
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.
We are given the number 13_,644 which rounds off to 130,000.
Now as we can see the number is rounded down, so we can apply rule number 2 here.
If we place the digit 0, 1, 2, 3 or 4 then the number will round off to 130,000.
Answer: The possible digits that can go in thousands place are 0, 1, 2, 3 or 4.
Denise rented a bike for $12 for a month.She earned $31 a week for delivering newspapers. How much money did denise have if she delivered newspapers for 3 weeks
Answer:
Denise made $57
Step-by-step explanation:
$12 * 3 = $36
$31 * 3 = $93
$93 - $36 = $57
What type of number is 67
it is an odd number. it is also a prime number . ie only divisible by one and itself.
if 14 giant solar power plants generate 2.6 gigawatts of energy to power 1.8 million homes how many homes can 28 solar panels power
Doubling the number of giant solar power calculation plants from 14 to 28 would theoretically power double the number of homes, which is approximately 257,142 homes.
If 14 giant solar power plants generate 2.6 gigawatts of energy to power 1.8 million homes, we can calculate the number of homes that 28 solar panels can power by first determining the number of homes one plant can supply energy for.
Powering 1.8 million homes with 14 plants means each plant powers 1.8 million / 14 = 128,571 homes approximately.
If we assume a direct scale-up, doubling the number of solar power plants to 28 would theoretically double the number of homes that can be powered, hence 28 plants would power 128,571 homes × 2 = 257,142 homes approximately.
However, the question seems to have a typo because usually power capacity is specified for power plants and not individual solar panels.
So, doubling the number of solar panels, not power plants, wouldn't necessarily mean doubling the total power capacity because individual solar panels have a much smaller capacity than an entire power plant.
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