Answers
Answer:
here
Step-by-step explanation:
ratio:
1x, 3x, 5x=180
9x=180
x=180/9
x=20
forgot to mention 1x=cement
3x=sand and 5x=gravel.
I only know first part of the question.
Answer:
Let the ratio be x,3x,5x
then,
or,x+3x+5x=180kg
or,9x=180
or,x=180/9
or,x=20kg
now,3x=3*20
=60kg
5x=5*20
=100 kg
therefore he doesn't have enough cement and sand but he has enough gravel.
Related Questions
HII CAN someone pls help me with these 2 im stuck on them :((!!
i need a answer and i have to explain
plS HELP!!!
Answers
Okay can some one tell me where I am going wrong I don't understand how I am getting this wrong
QUESTION: THE LENGTHS OF THE RECTANGLE HAVE BEEN MEASURED TO THE NEAREST TENTH OF A CENTIMETER CALCULATE THE UPPER BOUND FOR THE PERIMETER OF THE RECTANGLE length: 9.8cm width: 4.3 cm
My workings:
1cm=0.05
9.8 - 0.05= 9.75
4.3-0.05= 4.25
9.75+4.25 = 14
MATHS WATCH IS TELLING ME IT IS WRONG CAN SOMEONE EXPLAIN PLEASE
Answers
Answer:
p=28.2
Step-by-step explanation:
l=9.8
w=4.3
it was close tho
Answer : 28.4 cm
Lower Upper
Length is given as 9.8 --> 9.75 ≤ L < 9.85
width is given as 4.3 --> 4.25 ≤ w < 4.35
Perimeter = 2L + 2w (Upper bound)
= 2(9.85) + 2(4.35)
= 19.7 + 8.7
= 28.4
volume of composite figures
Answers
✍️Answer:
The volume of the figure is 381 cubic in✄ ---------------[tex]v=L*W*H[/tex][tex]v=(16)(7)(3)+1/2(3)(5)(6)[/tex][tex]v=336+45[/tex][tex]v=381 in^3[/tex]✮✮✮✮✮✮✮✮✮
hope it helps...
have a great day!!
5.6x+0.05-2.4k+5.9
please solve quickly I need help!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
5.6x+5.95-2.4k if that's what you need
Help me please help please choose two answers
Answers
Answer:
Choice 1 and Choice 2
Answer:
1,2 hope this helps
Step-by-step explanation:
I just did this
please hurry, will give brainliest
Answers
Answer:
5.03709... , 4.923935... , 4.123105... (square root of 17) , 3.464101... (square root of 12)
Step-by-step explanation:
:D
brainliest and 35 points!
Which of the following number lines represents the solution to m/-2 - 7 = -9?
Answers
what does c stand for in math
Answers
Answer:
Any number depending on what math problem like
Step-by-step explanation:
5 + c = 14 so c is 9
Answer:
In math algrebra, there are varibles. These varible are letters. Letters are a symbol that can represent anything. So 4x+5=? To figure that out we need to know x. That is an example that a variable can be any number
Step-by-step explanation:
plz help me i will give 50 points,
Answers
You and your best friend are both on the swim team. You want to beat your friend at the next swim meet so you
decide to swim 15 minutes longer than she does one day at practice.
Write an equation for the number of minutes you swim, y, when your friend swims 2 number of minutes.
You swim 55 minutes.
How many minutes did your friend swim?
minutes
Answers
Answer:
40 minutes
Step-by-step explanation:
Answer:
Y = X + 15*D
Step-by-step explanation:
Y = Person Swims During Practice
X = Frien Swims During Practice
D = number of Days both Practice
its given that daily 15 minutes longer swim then Friend
Hence
Y = X + 15*D
Find the length of the segment that joins the points (4, -2) and (1, -3).
Answer: square root of __
Answers
Answer:
Your answer would be √10, or square root of 10.
20 POINTS PLEASE HELP IM IN CLASS RIGHT NOW
Answers
Answer:
496
Step-by-step explanation:
992/2 =496
Dan invests £1500 into his bank account.
He receives 3% per year simple interest.
How much will Dan have after 2 years?
Give your answer to the nearest penny where appropriate.
Answers
Answer:
£1,725.00
Step-by-step explanation:
To calculate simple interest, we use the formula:
a = p(1 + rt)
a is the answer
p is the principle, or the starting amount of money
r is the rate, or the rate of interest (the percent)
and t is the time, or years.
First, 3% as a decimal is 0.03
So we can plug that in as r.
Then just plug the rest of the numbers in.
a = 1500(1 + 0.03 x 2)
Then just solve the equation to get 1,725.00.
Hope this helps!
6. What is the length of BC?
Answers
ILL MARK BRAINLIST
Which option identifies if the study in the following scenario is valid at the margin of error and correctly explains why or why not?
A researcher seeking a margin of error of 5% designs a study for a sample size of 144.
Yes, because 53 = 225 > 144
Yes, because = 0.69% < 5%
No, because 144 * 5% = 7.2 > 5
No, because = = 8.3% > 5%
Answers
Answer:
B would be your best choice
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
other guy isn't correct, got wrong answer
Help for math.
25=(120)^2/P
Answers
Answer:
576
Step-by-step explanation:
You can refer to the photo I attached
Need help on the level 10 question. Only comment if you know. Please step by step
Answers
2xy^2+xy^2+xy-2x
2x(y^2-1)+xy(y+1)
2x(y-1)(y+1)+xy(y+1)
(y+1)(2xy-2x+xy)
(y+1)(3xy-2x)
I divide 3xy^2 into 2xy^2+xy^23xy² + xy - 2x
Take x common from all the terms.= x (3y² + y - 2)
Now, split the middle term of the bracketed portion.= x (3y² + 3y - 2y - 2)
= x {3y (y + 1) - 2 (y + 1)}
= x (y + 1) (3y - 2)
Answer:
[tex]x (y + 1) (3y - 2)[/tex]
Hope you could understand.
If you have any query , feel free to ask.
help pls i need help on this last math area equation. and explain also.
Answers
Answer:
c
Step-by-step explanation:c
Pls help ! Will give brainliest
Answers
Answer:
constraints - limitations on a problem
vertices - point of intersection
feasible area - maximize or minimize
last one is last one
Step-by-step explanation:
Answer please and thank you
Answers
Answer:
s = 11.97
Step-by-step explanation:
10t^-5 Simplify. Write the expression using only positive exponents.
Answers
Answer:
Step-by-step explanation:
[tex]10t^-5 = 10/t^5[/tex]
The value of 10[tex]t^{-5[/tex] in positive power is 10/ [tex]t^5[/tex].
What are Exponents and power?The base number is the number that is being multiplied by itself an infinite number of times, and the exponent is the number of times that it is being multiplied. The nth power of the given number is an expression that results from multiplying a given number by itself n times.
We have,
Expression: 10[tex]t^{-5[/tex]
We know to make the power positive we have to reciprocate the number.
Now, using exponents we get
[tex]a^{-m}= 1/a^m[/tex]
So, 10[tex]t^{-5[/tex]
= 10/ [tex]t^5[/tex]
Learn more about Exponents and Power here:
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What value of X makes equation below true 2x + 9 = 4x - 1
Answers
Answer:
5
Step-by-step explanation:
Answer:
5 IS THE RIGHT VALUE THAT MAKES THE GIVEN EQUATION TRUE...
Step-by-step explanation:
2x+9=4x-1
9+1=4x-2x
10=2x
10/2=x
5=X
Does anybody know how i can choose a subject in this app
Answers
Answer:
You can click *BRAINLY* the symbol, which takes you to brainly home. Click the dropdown next to the little carrot and choose your desired subject.
Hope this Helps!
Based on a $400 loan amount, rank the following companies from the lowest to highest annual percentage rate (APR)
Answers
Answer:
Step-by-step explanation:
A = 40* (365/5)= 29.2%
B = 50*(365/12) = 15.2%
C= 80*(365/15)=19.46%
D = 100*(365/20)=18.25%
so best is B, then D , then C then A .
B,D,C,A in lowest to highest APR
As per the given data, with a base of $400 for loan amount, the ranking of all the given companies from the lowest to highest annual percentage rate is B,D,C, and A.
What is the annual percentage rate?Annual borrowing costs, including fees, are stated as a percentage and are known as the annual percentage rate, or APR. The APR is a more comprehensive indicator of how much borrowing money will cost because it includes both interest rates and application fees.
Instead of just a monthly fee or rate, the term annual percentage rate of charge refers to the interest rate for the entire year as applied to a loan, home loan, credit card, and many more. It can also be referred to as a nominal APR or an effective APR. It is a financial fee that is calculated at an annual rate.
Required calculations are as follow:
A = 40 × (365/5)= 29.2%
B = 50 × (365/12) = 15.2%
C= 80 × (365/15)=19.46%
D = 100 × (365/20)=18.25%
Therefore, the ranking of all the companies with the lowest to highest annual percentage rate are B,D,C, and A.
Learn more about annual percentage rate from here:
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If any of you are good with math and Science especially algebra can you PLEASE HELP ME
Answers
Answer:
ok what do i do 1st
Step-by-step explanation:
Answer:
how can i help?
Step-by-step explanation:
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answers
Answer:
x = 97.6
Step-by-step explanation:
cos = adjacent over hypotenuse
[tex]cos(55)=\frac{56}{x}[/tex]
* multiply each side by x *
[tex]cos(55)*x=xcos(55)\\\frac{56}{x} *x=56\\56=xcos(55)[/tex]
* divide each side by cos ( 55 ) *
[tex]\frac{xcos(55)}{cos(55)} =x\\\frac{56}{cos(55)} =97.63302055[/tex]
we're left with x = 97.63302055
Our last step is to round to the nearest tenth of a foot
We get that x = 97.6
HELP ASAP! GIVING BRAINLY IF CORRECT
Container A is a cylinder with a radius of 9 units and a height of 9 units. A right cone has been carved from its base and has a height of 9 units. Container B has the same radius as container A. Which statement derives the formula to find the volume of container A?
container A is a right cylinder that has had a right cone subtracted from its base, container B is half of a sphere
π(92)(9) − 1 over 3π(92)(9)
2[π(92)(9) − 1 over 3π(92)(9)]
1 over 3π(92)(9) − π(92)(9)
2[1 over 3π(92)(9) − π(92)(9)]
Answers
Answer:
a. π(92)(9) − 1 over 3π(92)(9)
Step-by-step explanation:
Solution given: For A
height =9units
breadth =9units
for both cylinder and cone
Volume of container A=volume of cylinder -volume of cone
=πr²h-1/3×πr²h=π(9²)9-1/3×(9²)9
so your final answer is A
a. π(92)(9) − 1 over 3π(92)(9)
The volume of the container A and container B will be π(9²)9 – (1/3)π (9²)h. Then the correct option is A.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
Container A is a cylinder with a radius of 9 units and a height of 9 units. A right cone has been carved from its base and has a height of 9 units.
Then the volume of the container A will be given as
Volume of A = Volume of cylinder – volume of cone
Volume of A = πr²h – (1/3)πr²h
Volume of A = π(9²)9 – (1/3)π (9²)h
Volume of A = (2/3) π(9)³
Container B has the same radius as container A.
Volume of B = (4/6) πr³
Volume of B = (2/3) π(9)³
Then the correct option is A.
More about the geometry link is given below.
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In the United States, the maintenance and construction of airports, transit systems, and
major roads is largely funded through a federal excise tax on gasoline. Based on the 2011
statistics given below, how much did the average household pay per year in federal gasoline
taxes?
.
The federal gasoline tax rate was 18.4 cents per gallon.
• The average motor vehicle was driven approximately 11, 340 miles per year.
The national average fuel economy for noncommercial vehicles was 21.4 miles per
gallon.
The average American household owned 1.75 vehicles.
.
$55.73
$68.91
$97.52
$170.63
Answers
Answer:
Step-by-step explanation:
uy
According to the above we can establish that based on the given statistics, the average household paid approximately $97.52 per year in federal gasoline taxes.
How to calculate how much average household paid per year in federal gasoline taxes?To calculate how much the average household paid per year in federal gasoline taxes, we can use the following steps:
Determine the total number of gallons of gasoline consumed by the average household per year:
Total gallons = (Total miles driven) / (Miles per gallon)Total gallons = 11,340 miles / 21.4 miles per gallonTotal gallons = 530 gallons (rounded to the nearest gallon)Calculate the total amount paid in federal gasoline taxes per year:
Total taxes = (Total gallons) * (Tax rate per gallon)Total taxes = 530 gallons * $0.184 per gallonTotal taxes = $97.52According to the above we can establish that based on the given statistics, the average household paid approximately $97.52 per year in federal gasoline taxes.
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8(k+3)=12k−4 k = ______
Answers
Answer:
See explanation.
Step-by-step explanation:
[tex]8(k+3)=12k-4k[/tex]
Distribute the 8
[tex]8k+24=12k-4k[/tex]
Combine like-terms on right side
[tex]8k+24=8k[/tex]
This equation is not true because for any value for k, this equation will never be true. For example, if we subtract 8k from both sides, we get
[tex]24=0[/tex]
This isn’t a true statement, so your answer would be one of the following:
k=∅
∅
No solutions
PLS ANSWER PHOTO ATTACHED
Answers
Answer:
its 12
Step-by-step explanation: