Hey there!
The answer to your question is, yes, it is
Given:
[tex]\frac{8}{5}[/tex] [tex]and[/tex] [tex]\frac{24}{15}[/tex]
To see if they are equal, we can use cross products (see below for information about this, if you don't know what it is). Let us assume they are equal. This would mean that:
[tex]8*15=24*5[/tex]
Let's solve it and see if it is true:
[tex]8*15=24*5[/tex]
[tex]120=120[/tex]
Therefore, they are proportional.
Cross products
WORD DEFINITION:
Given two fractions, you can take the numerator of the first fraction multiplied by the denominator of the second fraction and it should equal the denominator of the first fraction multiplied by the numerator of the second fraction.
ALGEBRAIC DEFINITION:
Given two fractions, [tex]\frac{a}{b}[/tex] [tex]and[/tex] [tex]\frac{c}{d}[/tex], [tex]a*d[/tex] should equal to [tex]b*c[/tex]
Hope it helps, and have a terrificly amazing day!
374 students said that they played sports. 58% said that they played basketball. How many students played basketball?
Answer:
A
Step-by-step explanation:
Each girl was given 20 beads to make a bracelet. The line plot above shows how many beads the girls each used of their bracelets. How many girls chose to put at least half of the beads on their bracelet?
This is timed
I think it's eight bead's??...........
Determine whether the graphs of the given equations are parallel, perpendicular, or neither.
Y= -2x+3
2x+y=7
A. Parallel
B. Perpendicular
C. Neither
Answer:
A
Step-by-step explanation:
Because the have the same slope.
The second equation solving for y is:
Y= -2x+7.
Both equations have the same slope of -2
Answer:
Parallel
Step-by-step explanation:
If lines have the same slope, then they are parallel. If lines have slopes that are opposite reciprocals of each other, then they are perpendicular. If neither one of those statements are true, then the answer is neither.
1) First, find the slope of the first equation. [tex]y = -2x + 3[/tex] is already in [tex]y = mx + b[/tex] format, or slope-intercept form. The [tex]m[/tex], or the coefficient of the x term, represents the slope. Thus, by looking at the equation, -2 is the slope of [tex]y = -2x + 3[/tex].
2) Second, find the slope of the second equation. [tex]2x + y = 7[/tex] is in standard format, but we can change it to slope-intercept format by isolating the y like so (just subtract both sides by 2x):
[tex]2x + y = 7 \\y = -2x + 7[/tex]
Now that it is in slope-intercept form, we can look at the coefficient of the x term, or [tex]m[/tex], to find the slope. That number is -2, thus the slope of [tex]2x + y = 7[/tex] is -2.
3) We found out that the slopes of both equations are -2. Thus, since they share the same slope, the lines are parallel.
Calculate x
I ll mark you as the brainliest
Answer
x = 18 cm
Step-by-step explanation:
Here, we want to calculate the value of x
let half of x = b
so b is the base of each right-triangle
As we can see, the triangle is isosceles
we can calculate the length of the base of one of the smaller right angled triangle and multiply by 2 to get the full x length
According to Pythagoras’ , the square of the hypotenuse equals the sum of the squares of the two other sides
15^2 = 12^2 + b^2
225 = 144 + b^2
b^2 = 225-144
b^2 = 81
b = √81
b = 9
but x = 2b
x = 2(9)
x = 18 cm
Anyone help pls I’m stuck I keep getting it wrong
What is the sine of angle C?
Answer:
4/5 or 53°
Step-by-step explanation:
soh
cah
toa
you want soh
sine=opposite/hyp
therefore sine of C is 4/5
to find the degrees you have to something a lil different.
sin^-1 (theta)= 4/5
sin^-1(4/5)=theta
53°=theta
a. True/False
To complete the square on the left side of the equation x2 - 6x = 9,
you must subtract the number 9 from both sides.
Answer:
True
Step-by-step explanation:
[tex]x^{2} -6x=9[/tex]
subtract [tex]9[/tex] from both sides
[tex]x^{2} -6x-9[/tex]
plz mark me brainliest. ;)
HELP ME FIND THE GCF
What is the greatest common factor (GCF) of the numerator and denominator
of the rational expression below?
5x - 20/ x^2-2x-8
Answer: Look below =3
The greatest common factor of numerator and denominator is (x-4).
Pls help will give Brainliest if right, Don’t guess
Help me it’s urgent please
In the city where sonya lives, it rains and average of 8.05 centimeters each month last year.About how many centimeters of rain fell in all last year? Show your work.
The total centimeters of rainfall in the city for the past year where Sonia lives is given by the equation A = 96.6 cm
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the total centimeters of rainfall for the past year be A
Now , the equation will be
The centimeters of rainfall every month in the city = 8.05 cm
The total number of months in a year = 12 months
So ,
The total centimeters of rainfall in the city for the past year A = centimeters of rainfall every month in the city x total number of months in a year
Substituting the values in the equation , we get
The total centimeters of rainfall in the city for the past year A = 8.05 x 12
On simplifying the equation , we get
The total centimeters of rainfall in the city for the past year A = 96.6 cm
Therefore , the value of A is 96.6 cm
Hence , the total rainfall is 96.6 cm
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ5
4,5,10,8,4,8,7,6 range
Answer:
10-4=6
Step-by-step explanation:
The range is the difference between the biggest and smallest number. In this case, 10 is the biggest number and 4 is the smallest. So we do 10-4, which gives us 6, so 6 is the range.
PLZ HELP ONLY WANT ANSWER IF 1,000% SURE
For each value of x, determine whether it is a solution to 5x<35 .
9: yes or no
5: yes or no
11: yes or no
3: yes or no
Answer:
Step-by-step explanation:
The alligator eats the bigger number, < is a less than sign
5(9) = 45. Is 45 less than 35? No.
5(5) = 25. Is 25 less than 35? Yes.
5(11) = 55. Is 55 less than 35? No.
5(3) = 15. Is 15 less than 35? Yes.
Answer:
the correct answer is c
Step-by-step explanation:
have a nice day (btw can give me brainliest)
Tally question.
Quite easy.
Pls help :)
Answer:
39/73
Step-by-step explanation:
Plsssssssssss helppppppp
Answer:
C. theres a 50% chance
Step-by-step explanation:
Bb, Bb, bb & bb
hope this helps <3
Answer:
Hi! Hopefully I can help you. I think that its 75% likey to get a kid with brown eyes.
Step-by-step explanation:
Hopefully this picture provides a nice explanation. I'm so sorry, punnet squares are so hard.
a lesson ends at 2:30 it lasts for 55 minutes. when does the lesson starts
Answer: 1:35
Step-by-step explanation:
Just go and hour back from 2:30 and add 5 minutes
Answer:
1:35
i subtracted at a 1 back from 2:30 -5 minutes which would be 1:35 sorry if i confused you
A map has the scale of 1 inch = 50 miles. if two cities are 1 inch apart on the map how many miles separate the cities?
Answer: 175
Step-by-step explanation:
To determine the actual distance using the map scale of 1 inch = 50 miles, you would multiply the number of inches shown on the map by 50.
For this problem: 3 1/2 • 50 = 7/2 • 50 = 175 miles
The two cities are 175 miles apart.
Simplify the expression 6h+(−7.7d)−18+5d−2.8h
.
what is the slope of a line that contains the points (-6, 1)and (4 negative 4)
1.Morgan drives 24 miles due north, then drives 7 miles due east from home to work. What is the distance between Morgan’s home and work, measured in a straight line?
2. Hailey is flying a kite on a string 25m long. The kite is directly above Cassi who is 15m from Hailey. How high is the kite above the ground?
Use the Pythagorean theorem to solve each problem. Show Calculations.
Answer:
1) 25 miles
2) 20 m
Step-by-step explanation:
Number 1 is going to be
[tex]a^{2} + b^{2} = c^{2}[/tex] because it's a right triangle
So
[tex]24^{2}[/tex] + [tex]7^{2}[/tex] = [tex]c^{2}[/tex]
625 = [tex]c^{2}[/tex]
c = 25 mile
Number 2 uses the same process, but changing to using C instead of A
a^2 = c^2 - b^2
a^2 = 625 - 225
a = \sqrt(400)
a = 20m
Is 4 a solution of 7 < 5x – 16
Answer:
no
Step-by-step explanation:
7 < 5*4 - 16
7 < 20-16
7 <4
Answer:
[tex] x > \frac{23}{5} [/tex]
Step-by-step explanation:
[tex]7 < 5x - 16 \\ - 5x < - 16 - 7 \\ - 5x < - 23 \\ [/tex]
[tex] \boxed{Answer:{\boxed{\green{= x > \frac{23}{5}}}}} [/tex]
Someone help and please make sure the answer is right :)
Answer:
B
Step-by-step explanation:
their alternate exterior angles so they are equal
9x + 12 = 120
9x = 108
x = 12
3. Diego measured the length of a pen to be 20 cm. The actual length of the pen is 22 cm.
Which of these is closest to the percent error for Diego's measurement?
A. 2%
B. 4.5%
C. 10%
D. 9%
<><><><>Simple true and false math<><><><>
Answer:
true
Step-by-step explanation:
just my opinion but for me it's true
Answer:
TRUE I AGREE WITH THE PERSON UP ABOVE
Step-by-step explanation:
When making a monthly budget, a family estimated they would spend
$600 on groceries. They spent $640. What was the percent error?
they added the tax witch is 20% more than what the price tag says
What is the area.
please do not answer as a joke
Answer:
254.34 inches²
Step-by-step explanation:
The formula for area of a circle is: pi x r². The radius is half of the diameter (18) which in this case would be 9. Square it to get: 81. Multiply by pi: 81 x 3.14 = 254.34.
Hope it helps!
Answer:
I believe it is around 56.52
Step-by-step explanation:
3.14
x
18
--------
56.52
plz help i will give brainliest
Answer:
113°
Step-by-step explanation:
53+6+8= 67
180-67=113
Can anyone help me with these 3 please !
I’ll mark you as a brainliest.
Answer:
72
270
600,000
I wasn't sure what this question means, but I did the math??
like are supposed to switch around the numbers..? haha...
Answer:
1. 72
2. 270
3. 600,000
hope this helps!!
Step-by-step explanation:
What is the acceleration of Romeo's 900 kg horse if it moves with a force of 9000N?
The radius of the front wheel of Monica's bicycle is 1 foot. About how far has Monica traveled after the wheel has made 100 revolutions? (use 3.14 for pi)
Answer:
Distance travel by Monica = 628 ft
Step-by-step explanation:
Given:
Radius of whee l = 1 ft
Number of revolution = 100
Find:
Distance travel by Monica
Computation:
Distance travel by Monica = 100[Circumference of wheel]
Distance travel by Monica = 100[2πr]
Distance travel by Monica = 100[2(3.14)(1)]
Distance travel by Monica = 100[6.28]
Distance travel by Monica = 628 ft