Answers
Answer:
I was never good at this in math...
Answer:
X = 30
Y = 14
Step-by-step explanation:
x/20 = 18/12
multiply both sides by 20
x = 18/12 x 20 = 30
y/21 = 12/18
multiply both sides by 21
y = 12/18 x 21 = 14
Related Questions
6. What are the solutions to
(x + 3)2 = 49
x= -2 and x = -16
x = 2 and x = V-10
x = 4 and x = -10
x = 40 and x = -58
Answers
Answer:
The answer is x=4 or x=−10
Solutions:
(x + 3)² = 49
(x+3)(x+3)=49
x²+6x+9=49
x²+6x+9-49=0
(x-4)(x+10)
x-4=0 x+10=0
x=4 x=-10
Find the equation of the line
Answers
Answer:
y = 2x - 7
Step-by-step explanation:
The question is asking for slope-intercept form, y = mx + a.
Given:
(1, -5) and (9, 11)
Find the slope (m) between the two points:
m = (y2 - y1) / (x2 - x1)
x1 = 1
x2 = 9
y1 = -5
y2 = 11
m = ( 11 - (-5) )/(9 - 1)
= 16/8
m = 2
y = 2x + a
Use one of the two points to find a (I will use (1, -5)):
-5 = 2(1) + a
-5 = 2 + a
-7 = a
a = -7
y = 2x + (-7)
y = 2x - 7
Joe is traveling from one city to another. He is looking at a map and realizes that 4 cm represents 25 miles.He then used a ruler to measure the distance on the map between two cities that he is traveling. The distance between them is 160 cm. How far, in miles are the two cities apart?
Answers
Answer:
The two cities are 1,000 miles apart
Step-by-step explanation:
The key to solving this is in the scale given:
4cm represents 25 miles
4cm = 25 miles
∴ 1 cm = 25 ÷ 4 = 6.25 miles
Measured distance on map = 160cm
1 cm = 6.25 miles
∴ 160 cm = 160 × 6.25 = 1000 miles
∴ The two cities are 1,000 miles apart
Sam and Sara bought the same number of pencils. Sam put ¼ of his pencils in his pencil box and Sara put ½ of her pencils in her pencil box. If sam had put 5 in his box then how many pencils did sara put in her pencil box?
Answers
Answer:
10 pencils
Step-by-step explanation:
Given that:
Number of pencils bought by Sam and Sara are the same.
Let the number of pencils bought = x
Sam put 1/4 in his pencil box
Sara put 1/2 in her pencil box
1/4 of Sam's pencil = 5
That is ;
1/4 of x = 5
x /4 = 5
x = 20
Hence, number of pencils Sara put in her box
:
1/2 of 20
1/2 * 20
20/2
= 10
10 pencils
Please help and answer
Answers
Answer:
A quotient is a result when two numbers are divided
A difference is a result of two numbers being subtracted
A Product is the result of two numbers being multiplied
Step-by-step explanation:
56 divided by 7
8 minus 6
5 times 4
confused help outttt pleaseeee
Answers
Answer:
the correct answer would be p=nRt/v
Step-by-step explanation:
you would devide both sides by v to get the new equation
HELP ASAP. The two lines graphed on the grid each represent an equation.
Which ordered pair represents a solution to both equations?
A. (-4,0)
B. (-2,1)
C. (0, -4)
D. (1, -2)
Answers
Answer:
B
Step-by-step explanation:
the lines cross at (-2,1)
Please help
Solve for x.
Answers
Answer:
x = 17
Step-by-step explanation:
Since 2 sides of the triangle are congruent then it is isosceles, so
The 2 base angles are congruent, both 29°, thus
11x - 65 = 180 - (29 + 29) = 180 - 58 = 122 ( add 65 to both sides )
11x = 187 ( divide both sides by 11 )
x = 17
Can someone help my sis on these questions? I dont remember how to do these things (part 3)
Answers
Answer:
im pretty sure its B becuase Richard owes more
Step-by-step explanation:
is that Florida vertual school? it looks like what i used to do
The perimeter of a rectangular parking lot is 292 m.
If the length of the parking lot is 81 m, what is its width?
Answers
Answer:
the answer would be 211
Step-by-step explanation:
you simply add the length and width together to find perimeter. since you have the total perimeter and the length you would instead subtract the two.
292-81= 211
Answer:
68m
Step-by-step explanation:
The perimeter of a rectangle with length and width is given by the following.
P=21+2w
We need to find w when P=292 m and l+78m .
Using these values in the equation above, we'll solve for w.
P=21+2w
292=2(78)+2w
292=156+2w
136=2w
68=w
Subtracting 156 from both sides
Dividing both sides by 2
So the width of the parking lot is 68m
Which expression is equivalent to: 2(3x + 4)(x - 1)(x – 3)
a. 6x3+20x2 - 2x - 24
b. 6x3– 16x? - 14x + 24
c. 6x3- 4x2 – 34x - 24
d. 3x3- 8x - 7x + 12
Answers
Answer:
6x^3-16x^2-14x+24 Soo probably b?
5. Find 11% of 460. (1 point)
46
40.6
50.6
56
Answers
Answer:
50.6
-I hope this helps have a great day!
Subtract 9x^2-10x+19x −10x+1 from -2x^2+4x-10−2x +4x−10.
Answers
Answer:
11x^2+5x−19
Step-by-step explanation:
I need help pleaseeee
You join a cycle class. The monthly membership fee is $20 plus the rate per hour spent cycling is $4. What function represents this
scenario?
Answers
Answer:
Linear bc the equation of this scenario is y=4x+20
Step-by-step explanation:
Can someone help with these two questions
Answers
Answer:
1. A
2. I cant see answer D
But if it's 36
IT'S CORRECT
What is the Slope from this equation? y = 0.75x - 5
Answers
Answer:
-5
Step-by-step explanation:
California has approximately 4 x 10^7 people living in it. The population of the entire United States is approximately 3 x 10^8 people. About how many times greater is the population of the United States than the population of California?
Answers
Answer:
−260000000x
Step-by-step explanation:
multiply both and then subtract them
Mai made $112 for 8 hours of work.
At the same rate, how many hours would she have to work to make $252?
Answers
Answer:
18 hours
Step-by-step explanation:
Answer:
The correct answer would be 18 hours
Step-by-step explanation:
18 is correct because if you do $112 divided by 8 hours to get the unit rate of 14 dollars every hour, then do $252 divided by 14 which is the unit rate to equal 18 hours of work.
HAVE A GOOD DAY!
the sum of a number and 7 is less than 12
Answers
explanation:
12-7=5
Will give brainpower if correct PLEASE HELP ME
Answers
Answer:
it equals 45
Step-by-step explanation:
use the subsitution method to slove the system of equations.Choose the correct ordered pair. x+3y=9 y=x-5
Answers
Explanation:
Answer:
(6, 1)
Step-by-step explanation:
We are given the equation for (y), [y=x-5]
So we can implement that in all the places the (y) are in the other equation.
x+3(x-5)=9
x+3x-15=9
add 15 to each side
4x=24
Divide each side by 4
x=6
Now we can apply our (x) into one of the equations.
y=(6)-5
y=1
So our solution is (6, 1)
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
I need the slope and the y - intercept in the equation. I’ll give you a if you help me
Answers
Answer:
m = slope = 1/2The y-intercept = (0, 5) The equation of the line is:[tex]y=\frac{1}{2}x+5[/tex]
Step-by-step explanation:
Considering the line graph
Some of the points on the line are given by
(0, 5)(2, 6)(4, 7)(6, 8)Finding the slop between any two given points
Let us take the point (0, 5) and (2, 6)
[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(0,\:5\right),\:\left(x_2,\:y_2\right)=\left(2,\:6\right)[/tex]
[tex]m=\frac{6-5}{2-0}[/tex]
[tex]m=\frac{1}{2}[/tex]To the y-intercept, set x = 0.
We already know that when x = 0, the value of y = 5
so
The y-intercept = (0, 5)Equation of line can be obtained using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
substituting the values m = 1/2 and any point let say (2, 6)
[tex]y-6=\frac{1}{2}\left(x-2\right)[/tex]
add 6 to both sides
[tex]y-6+6=\frac{1}{2}\left(x-2\right)+6[/tex]
[tex]y=\frac{1}{2}x+5[/tex]
Therefore, the equation of the line is:
[tex]y=\frac{1}{2}x+5[/tex]Original amount: 1299 new amount: 499 what is the percent change?
Answers
Answer:38.41%
explanation:........
у = 3х – 1
у = 3y= -13
Answers
Answer:
y=1/3x-1/3
Step-by-step explanation:
95 ÷ 4 how many remanders will I have left
Answers
Answer:
3 Remainder
Step-by-step explanation:
Answer:
23 remainder 3
Step-by-step explanation:
Here's a graph of a linear function. Write the
equation that describes that function.
Express it in slope-intercept form.
Answers
Answer: y=1/2x-3
The area, LaTeX: aa, of an ellipse can be determined using the formula LaTeX: a=\pi xya = π x y, where LaTeX: xx and LaTeX: yy are half the lengths of the largest and smallest diameters of the ellipse. Which is an equivalent equation solved for LaTeX: yy? Group of answer choices LaTeX: y=a-\pi x y = a − π x LaTeX: y=a\ast \pi x y = a ∗ π x LaTeX: y=a\div (\pi x) y = a ÷ ( π x ) LaTeX: y=a+(\pi x)
Answer LaTeX: y=a\div (\pi x)y = a ÷ ( π x )
Answers
Question:
The area, a, of an ellipse can be determined using the formula a = πxy, where x and y are half the lengths of the largest and smallest diameters of the ellipse. Which is an equivalent equation solved for y?
Answer:
[tex]y = \frac{a}{\pi x}[/tex]
Step-by-step explanation:
Given
[tex]a = \pi xy[/tex]
Required
Solve for y
The question implies that, we make y the subject of formula:
This is done as follows:
[tex]a = \pi xy[/tex]
Divide through by [tex]\pi x[/tex]
[tex]\frac{a}{\pi x} = \frac{\pi xy}{\pi x}[/tex]
Isolate y on the right hand side
[tex]\frac{a}{\pi x} = y[/tex]
Reorder
[tex]y = \frac{a}{\pi x}[/tex]
Hence, the solution to the question is: [tex]y = \frac{a}{\pi x}[/tex]
Does the graph represent an exponential growth
or an exponential decay function?
Answers
Answer:
Ummmm... I'm sorry but there is no graph or equation, so I can't answer this question with them...
ILL MARK AS BRAINLESS PLS HELP
Answers
Answer:
8 to 1
Step-by-step explanation:
Answer:
8:1
Step-by-step explanation:
32:4
divid both sides by 4
8:1
Is 2/7 a proportional expression
Answers
9514 1404 393
Answer:
no
Step-by-step explanation:
A proportion is an equation saying two ratios are equal to each other.
One ratio is not a proportion.
___
It would be a proportion if it were said to equal something:
2/7 = peanuts/popcorn . . . is a proportional expression
