Step-by-step explanation:
let the number of blue and white marble be 2x and 3x respectively.
from question
2x +3x = 20
5x=20
x=20/5
x=4
2x= 2*4=8
3x=3*4=12
I WILL BRAIN LIST YOU HELP
Cora ran 3 miles last week and will run 7 miles per week from now on. Hana ran 9 miles last week and will run 4 miles
per week from now on.
In the answer box below,
1. Write a system of equations to describe this scenario.
2 Use Desmos to graph the system of equations you wrote and identify what the solution means in the context of the
problem
Answer:
See below and attached
Step-by-step explanation:
Cora ran 3 miles last week and will run 7 miles per week from now on.
y = 3 + 7xHana ran 9 miles last week and will run 4 miles per week from now on.
y = 9 + 4xThe graph is attached
Intersection of the lines is the point when both Cora and Hana run same distance, 17 miles after 2 days
Is 5.421 greater or less then 5.4
Answer:
5.421 > 5.4
Step-by-step explanation:
Alexandra read 3/7 of the pages in her 112-page book. How many pages has she read already?
Answer:
48 pages
Step-by-step explanation:
112÷7=16 so 3x16=48
Hannah pays $27.50 for her dinner at her favorite restaurant in New York City. The cost of her dinner includes tax and tip, which was a 30% increase on the cost of her meal. What is the cost of Hannah’s meal without tax and tip?
Answer: $19.10
Step-by-step explanation:
To be honestly im not sure if this is 100% correct but, i did the work so it should be. So what i did was move the decimal from $27.50 one place to the left which is= 2.750. i then rounded the easiest number which then gave me the answer $2.80. Now the percentage, its 30% so you then change it to .30
then you multiply that number (.30 which is basically 3) with $2.80.
$2.80
x .30
--------
you then get $8.40
which is the total cost of tax AND tip.
you subtract that with the cost of the dinner. ( $27.50 - $8.40 ) and you get the answer $19.10! I hope this helps! :))
answer quickly pls ill mark brainliest
Answer:
32x - 24y - 5
Step-by-step explanation:
That's the answer that I got on the question
Answer:
4x-3y-5
plz mark me branliest
Find the x values of x in the parallelogram
Answer:
No idea
Step-by-step explanation:
You need to show the parallelogram in order for your question to make sense.
Is this correct? I don’t think it is just guessed.
Step-by-step explanation:
Checked out the attached image
3. Kai sold 3x +5 textbooks in August and 2in September. What
would be the simplified expression that represents the total number of
books Kai sold in those two months? *
Answer:
3x+7
Step-by-step explanation:
Answer:
maybe?
Step-by-step explanation:I think it would be 3x+7 because you'd just add the 2 in september to the 5 in aug.
Find the value of x. Round to the
nearest tenth.
Step-by-step explanation:
The answer can be found by multiplying 1.4ft by 2.1 ft which gives you 2.94 the four in the 2.94 cannot be rounded up but the 9 can which makes the answer 3 feet by rounding the 2.9 up to 3
what is the value of k?
Help please. Which polynomial represents the sum below? (20 points)
Answer:
b option ..............
Jack is mowing a lawn that has a shed,
Find the area of the lawn that jack has to mow.
The dimensions of the yard are 12x - 6 long and 7x wide.
The dimensions of the shed are 2x + 4 long and 4x wide.
Find a polynomial that describes the area of the lawn that needs to be mowed.
Step 1: Find the area of the lawn.
Step 2: Find the area of the shed.
Step 3: Find the area of the lawn by subtracting the shed area from the yard area.
Answer:
76x^2 - 58x
Step-by-step explanation:
Area of the Yard: 7x(12x-6) = 84x^2-42x
Area of the Shed: 4x(2x+4) = 8x^2+16x
Area of the Lawn: 84x^2-42x -(8x^2+16x) = (84x^2-8x^2) + (-42x-16x) =
76x^2 - 58x
The answer is "[tex]\bold{84x^2 - 42x, 8x^2 + 16x,\ and\ 76x^2 - 58x}[/tex]", and the further calculation steps can be defined as follows:
For step 1:
Calculating the lawn area:
[tex]\to \bold{7x (12x -6) = 84x^2 - 42x}[/tex]
For step 2:
Calculating the shed area:
[tex]\to \bold{4x( 2x + 4) = 8x^2 + 16x}[/tex]
For step 3:
Calculating the lawn area by subtracting the area of the shed from the area of the yard:
[tex]\to\bold{ 7x (12x -6) - (4x(2x+4))}\\\\\to\bold{ 84x^2-42x -(8x^2+16x)}\\\\\to\bold{ 84x^2-42x -8x^2-16x}\\\\\to\bold{ 76x^2-58x}\\\\[/tex]
So, the final answer is "[tex]\bold{84x^2 - 42x, 8x^2 + 16x,\ and\ 76x^2 - 58x}[/tex]".
Learn more:
Area calculator: brainly.com/question/22951582
1/3 *divide* 3/8 = m
help?
Answer:
8/9
Step-by-step explanation:
To make it a fraction form answer, you multiply the dividend numerator by the divisor denominator to make a new numerator.
Furthermore, you multiply the dividend denominator by the divisor numerator to make a new denominator:
'
Thus, the answer to 1/3 divided by 3/8 in fraction form is: 8/9
Answer:
8/9
Step-by-step explanation:
Use a calculator. It is way easier. Math is hard.
Are they like terms? 3x & -x
Tell whether or not the relation is a function.
{(-4,-7), (-1, 8), (4, -7), (4, -8)}
Answer:
Not a function because the domain 4 repeats.
Which figure represents the image of parallelogram
LMNP after a reflection across the line y = x?
o figure A
O figure B
o figure C
O figure D
The figure that represents the image of parallelogram LMNP after a reflection across the line y = x is figure C
How to determine the figure?From the graph, the coordinates of the parallelogram LMNP are:
L = (3,1)
M = (4,3)
N = (5,3)
P = (4,1)
When reflected across the line y = x, the coordinates become
L' = (1,3)
M = (3,4)
N = (3, 5)
P = (1, 4)
The figure with the above coordinates is figure C
Hence, the figure that represents the image of parallelogram LMNP after a reflection across the line y = x is figure C
Read more about reflection at:
https://brainly.com/question/4289712
Someone help me with number 2 please
2y+1=x
3x+y=17
Substitution
Answer:
The answer is (5,2) or x = 5, y = 2
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Hoped this helped!
Could I perhaps get brainly?
What is step 10 in this proof
Answer:
I do not understand this. I am sorry.
Answer:
More details pls
Step-by-step explanation:
One side of a triangle is two times the second side. The third side is 5 feet longer than the second side. The perimeter of a triangle is 49 feet. Find the length of each side.
Given: f(x) = 2x^4 – 3x^3– 35x^2 – 9x + 45
Explain how you can show that (x-1) and (x+3) are factors.
Answer:
45-35-9-3+2 = 45-47+2 = 0
if the sum of coefficients is equal to 0, 1 is the factor of the polynomial
you can find other integer factors by looking on the integer factors of 45, so -3 will be a guess or you use use Horner, find how does this polynomial look like after factoring out (x-1) and try to group or other technic
can someone solve this please?
Answer:
3.16 units
Step-by-step explanation:
The distance between the points P1 (6, 8) and P2 (7, 5)) can be solved by using the distance formula given as [tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex].
Let,
[tex] (6, 8) = (x_1, y_1) [/tex]
[tex] (7, 5) = (x_2, y_2) [/tex]
Plug these values into the distance formula.
Thus:
[tex] d = \sqrt{(7 - 6)^2 + (5 - 8)^2} [/tex]
[tex] d = \sqrt{(1)^2 + (-3)^2} [/tex]
[tex] d = \sqrt{1 + 9} [/tex]
[tex] d = \sqrt{10} = [/tex]
d = 3.16 (nearest tenth)
Distance between the two points in the graph is approximately 3.16 units
6
Factor the expression.
4z- 28
Answer:
Simplifying
4z = 28
Solving
4z = 28
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Divide each side by '4'.
z = 7
Simplifying
z = 7
Byron drives from his house to the gas station and then to the market. How many miles does he drive in all? B 7 Gas station (3.8) Byron's house (88) Market (3.3) 1 unit 1 mile
Answer:
95.1 miles
Step-by-step explanation:
If one unit equal to one mile
Then,
Gas Station with 3.8 units = 3.8 miles
Byron's house with 88 units = 88 miles
Market with 3.3 units = 3.3 miles
Total miles travelled from Byron's house to gas station and then to market =3.8+88+3.3= 95.1 miles
6 times 3 and 2/3 distributive property
Answer: about 11.88
Step-by-step explanation: you just multiply all of it lol
Find the area of a circle with a circumference of 18.84 units
Answer:
28.25
Step-by-step explanation:
Area = C²/ 4π = 28.245673384359
Answer:
28.25 units^2
Step-by-step explanation:
Hope this helps!
The average no. of defective components
on o repairing a computer is found to 1 in 10
find the probability of getting exactly 3
defective components among 10 repaired
computer selected at random.
_______________________________
= 3 ÷ 10 × 100= 30%THE CHANCES ARE 30%_______________________________
is y=4x+2 proportional?
not proportional
y=mx+b
does not cross origin
Only CRoC
Given a right triangle with one leg of 4 units long and another leg 3 units long how long is the hypotenuse?
Answer:
5 units
Step-by-step explanation
Answer:
3
Step-by-step explanation:
I was too lazy to provide an explanation
List the angles in order from smallest to largest 2.8 3.2 and 3
Answer:
2.8, 3, 3.2 jhgfdsdrftggggggbhjn
