Answer:
60 kg of cement, 180 kg of sand and 240 kg of gravel
Step-by-step explanation:
x : 3x : 4x
If you turn this into an equation, it becomes x + 3x + 4x = 480
8x = 480
x = 60
60 is the amount for the cement, for the sand and gravel multiply this answer by 3 and the other by 4, you should get 180 and 240
Sorry if this was not clear
steven orders 9 tons of bricks for a construction project. He uses 3 2/3 tons for the front patio and 2 1/2 tons for the chimney. How many tons of bricks does Steven have left?
Answer:
They have 2 left
Step-by-step explanation:
3 2/3 - 2 1/2 = 1 1/1 = 2
Polygon LMNPQR is shown on the coordinate grid and models the shape of a garden in a park,
Polygon LMNPQR will be dilated with the origin as the center of dilation to create polygon
L'M'N'P/Q'R'. The vertex Q' will be located at (21, 7).
Which rule best represents the dilation?
Dilation involves changing the size of the polygon
The best rule of dilation is [tex](x,y) \to \frac 72(x,y)[/tex]
How to determine the ruleThe coordinates of vertices Q and Q' are given as;
Q = (6,2)
Q' = (21, 7)
The scale factor of dilation is then calculated as:
[tex]k = \frac {Q'}{Q}[/tex]
So, we have:
[tex]k = \frac {(21,7)}{(6,2)}[/tex]
Factorize
[tex]k = \frac {7/2(6,2)}{(6,2)}[/tex]
Divide
[tex]k = \frac {7}2[/tex]
So, the transformation rule is:
[tex](x,y) \to \frac 72(x,y)[/tex]
Hence, the best rule of dilation is [tex](x,y) \to \frac 72(x,y)[/tex]
Read more about dilation at:
https://brainly.com/question/3457976
Find the slope and the y -intercept of the graph of the linear equation.
-2x+y = 4
The slope is (Answer here)
and the y-intercept is (Answer here)
Answer:
I have answered this question already.
Step-by-step explanation:
Write the expression that is represented by the phrase below.
y squared decreased by the sum of x and 4.
HELP PLS
WORTH 15
Answer:
[tex] {y}^{2} - (x + 4)[/tex]
Step-by-step explanation:
The answer is above
please help me please and thank you!!!!!!!!
Answer:
32° + (x+9)° + (2x-8)° = 90°
32° + x + 9° + 2x - 8° = 90°
33° + 3x = 90°
3x = 90° - 33°
3x = 57°
x = 19°
angleCFD = 2×19 - 8
angle CFD = 30°
........
Given x + y = x ∙ y = 3, determine x3 + y3 ?
Answer:
Step-by-step explanation:
x³ + y³ = (x + y)(x² - xy + y²)
= (x + y)(x² + 2xy + y² - 3xy)
= (x + y)[(x + y)² - 3xy]
= 3(3² - 3(3)) = 3(0) = 0
.:.:.
If a new data point at 12 is added to the graph, which will
be true?
1
2
الا
4
5 6 7
8 9 10 11 12 13
O The mean will increase, and the median will stay the
same.
O The median will increase, and the mean will stay the
same.
O The mean will increase more than the median, but
both will increase.
O The median will increase more than the mean, but
both will increase.
Answer:
that is true
Step-by-step explanation:
hope this helps
If a new data point at 12 is added to the graph, The mean will increase more than the median, but both will increase.
What is Mean and Median?Mean of a set of data is defined as the average of all the values. It gives the exact middle point of the data set.
Median of a data set is the element in the middle if the data are arranged in increasing or decreasing order.
Given a graph with the data points as,
1, 2, 2, 2, 3, 4, 4, 4, 5
Mean = (1 + 2 + 2 + 2 + 3 + 4 + 4 + 4 + 5) / 9 = 27 / 9 = 3
Median = 5th term = 3
When 12 is added, new data set has 10 data points.
1, 2, 2, 2, 3, 4, 4, 4, 5, 12
Mean = (1 + 2 + 2 + 2 + 3 + 4 + 4 + 4 + 5 + 12) / 10 = 3.9
Median = average of 5th and 6th term = (3 + 4) / 2 = 3.5
Hence the correct option is The mean will increase more than the median, but both will increase.
Learn more about Mean and Median here :
https://brainly.com/question/31098693
#SPJ7
The complete question is given below.
Divide (3x⁴ -21x³+29x²-3x+28) ÷ (x−5)
Show steps
Answer:
-12
Step-by-step explanation:
[tex](3x⁴ -21x³+29x²-3x+28) ÷ (x−5)[/tex]
[tex]\\ 3x⁴ -21x³+29x²-3x+28 \\ x - 5\overline{)3x⁴ -21x³+29x²-3x+28} \\3x {}^{4} - 15x {}^{3} \: \: \: \ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \overline { - 6 {x}^{3 } + 29 {x}^{2} - 3x + 28 } \\ - 6 {x}^{3 } + 30 {x}^{2} \: \:\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \overline { - {x}^{2} - 3x + 28} \\ - {x}^{2} + 5x \: \: \: \: \: \: \: \: \: \\\overline { - \: \: \: 8x + 28} \\ \: \: \: \: \: 8x + 40 \\ - 12[/tex]
If x = 9 , evaluate the following expression: 2 x
Answer:
18
Step-by-step explanation:
You should place the value of x which is 9 into the expression 2 x
2(9)=18
Answer:
Step-by-step explanation:
The answer is:
If x=9
2x= 2 times 9
2 times 9 is 18
Answer is 18
Given that f (x)=2x^3-7x^2-5x +4 find the remainder by dividing it by (x-1)
Step-by-step explanation:
2 of the Constitution Constitution Constitution Sultanate Sultanate Flow 1
If 50% of some number is 75, what is 200% of that same number?
Answer:
300
Step-by-step explanation:
A percentage is a unit of proportion that represents a ratio.
For this question let the unknown number be represented by the variable x. We know that 75 is 50% of x, or half of x. This means that we can find the unknown number by doubling 75.
75*2=150This means that x is 150. Next, we need to find 200% of 150. 200% of any number is that number times 2. So, to find the final answer we must once again double 150.
150*2=300So, the final answer is 300.
Answer:
Step-by-step explanation:
270
50% equals to 1/2 so 1/2x=75. Times 2 on both sides you get x=135.
So 135 is x and you multiply 135 by 200%. Which get you 270.
Find the perimeter of the following figure?
Answer:
add all the sides
Step-by-step explanation:
1+5+3+1 = 10 cm
If the surface area of a sphere is 22176 sq.cm than find it's radius.
the surface area of a sphere: 4πr²
22176 = 4πr²
r² = 22176/4π
r = 42 cm
Brainliest to first person
Answer:
True
Step-by-step explanation:
(16³ - 8³)(4³ + 2³)
(4096 - 512)(64 + 8)
(3584)(72)
258048
To check if this statement is true, divide 258048 by 63:
258048/63 = 4096
Hope this helps :)
Center (8,4), r = 3
Write the standard equation for the circle.
Answer:
(x - 8)² + (y - 4)² = 9
Step-by-step explanation:
(x - 8)² + (y - 4)² = 3²
(x - 8)² + (y - 4)² = 9
At the library, 56 people borrowed
books on Monday. Then 48 people
borrowed books on Tuesday. On
Wednesday, 40 people borrowed
books. If this pattern continues,
how many people will borrow
books on Friday?
Answer:
24 people borrowed the books on Friday
Step-by-step explanation:
Every day, the number of books is being subtracted by 2.
56 - Monday (-8)
48 - Tuesday (-8)
40 - Wednesday (-8)
32 - Thursday (-8)
24- Friday
Pls help asap! :))
Does this graph show a function? Explain how you know
Answer:
A.
Step-by-step explanation:
[tex]A\ meaningful\ function:\\ one\ vertical\ has\ just\ one\ point\ of\\ intersection.[/tex]
{Definition of functiuon graph}
I hope this helps you
:)
The Area of a rectangle is 486.2 m2, and the base is 21m, find the height to the nearest hundredth.
Step-by-step explanation:
Let L = length and W = Width
The problem says L = 2W
and
Area = LW = 21
Substitute
2W2 = 21
W2 = 10.5
W = 3.24
L = 6.48
do x = 3 and 3x have the same value when x = 3
Answer:
yes
Step-by-step explanation:
because x=3 in both scenarios
f(n+1)=5f(n), where f(1)=3 and n>1
Answer:
[tex]f(n) = \frac35 5^n[/tex]
Step-by-step explanation:
Let's assume the solution is of the form [tex]f(n) = \alpha k^n[/tex], where [tex]\alpha[/tex] is to be determined on the starting condition, and [tex]k \in \mathbb{R} \ne 0[/tex]
[tex]f(n+1) -5f(n) = 0\\\alpha k^{n+1} -5 \alpha k^n=0\\\alpha k^n (k-5) = 0 \rightarrow k= 5[/tex]
at this point we can use our starting condition to determine the value of [tex]\alpha[/tex]:
[tex]f(1)=3 \rightarrow \alpha 5^1 =3 \rightarrow \alpha =\frac 35[/tex]
Our solution is, thus [tex]f(n) = \frac35 5^n[/tex]
Determine the intercepts of the line.
Do not round your answers.
y - 6 = 4(x + 5)
Answer:
5
Step-by-step explanation:
ten minus six is four, therefore x must be equal to five since five plus five is ten
Can anyone help me with this?
15 A committee consists of six men and four women. A subcommittee is made by randomly choosing three of the committee members. What is t
he probability that a they are all women b two of them are men?
Answer:
sorry I need the points plss forgive meee
carter has 1/2 gallon ice cream to make 4 ice cream cones how much ice creamhe use to make each cone
Answer:
1/8 for each
Step-by-step explanation:
4 decided by 2 for each one
what is the solution of
17/2 - [19/6 ÷ 9/2 of 16/3 + {11-(3 - 5/4 - 5/8 }]
Answer:
Step-by-step explanation:
First, simplify the question.
8 1/2 - [ 3 1/6 ÷ 5 1/3 + 11-(3 - 5/4 - 5/8 }]
then solve
these numbers form an addition and subtraction fact family for 6,7,13 here the choices 7+13=20 13+7=20 13-13=0 13-0=13 and 7+0=7 6+0=6 13-0=13 13-13=0 and 7+6=13 6+7=13 13-6=7 13-7=6 7+6=13 13=7+6 13-6=7 7=13-6 which one is the right answer
Answer:
Answer:
7+6=13 6+7=13 13-6=7 13-7=6 7+6=13 13=7+6 13-6=7 7=13-6b
Step-by-step explanation:
this involves any number that when subtracted or added it gives each other the values of the family
Example:-
7 + 6 equals 13, 13 - 6 equals 7,
so you see how they relate,
please mark me brainiest
^_^
Isabelle found the mean absolute deviation of the data shown.
Match her work to the correct step description.
100 points for right answer
Answer:
it's 50
Step-by-step explanation:
I had the exact same question
Answer:
the answer is 50!
Step-by-step explanation:
PLEASE HELP! I am doing Imagine Math and I need help with this question!
Lia is making a window covering that has 5 sections, each of which is 1 3/10 feet in width. What is the width of the entire window covering?
Answer:
61/2feet
Step-by-step explanation:
mark me brainliest!!
Frankie went jogging. He jogged 8/9
of a mile. His shoelaces were untied for
id he 1/4 of his run. For what distance were his
shoelaces untied?
Answer:
23/26 is the distance he ran with his shoe laces untied x