Answer: Ratios form a proportion if they are equal when cross-multiplied.
1/4 and 3/12
Cross-multiply these ratios to compare them: 1/4 * 12 = 3, 3/12 * 4 = 3.
So they are equal and form a proportion.
54/10; 81/15
Cross-multiply these ratios to compare them: 54/10 * 15 = 81, 81/15 * 10 = 54.
So they are equal and form a proportion.
18/24; 15/20
Cross-multiply these ratios to compare them: 18/24 * 20 = 15, 15/20 * 24 = 18.
So they are equal and form a proportion.
Hence, all the ratios mentioned above form a proportion.
Step-by-step explanation:
A line contains (-1, 2) and (1, -1). What is the slope of the line?
Answer:
The slope is -3/2 ([tex]-\frac{3}{2}[/tex])
Step-by-step explanation:
I hope this helps! :)
Answer:
-1.5
Step-by-step explanation:
slope= y2-y1/x2-x1
slope= -1-2/1-(-1)
slope= -1.5 or [tex]-1\frac{1}{2}[/tex]
The elevation of a small submarine changes by -3/8 mile after each exploration. After how many explorations will the submarines elevation have changed by -1 1/2 miles?
PLEASE HELP
Use the drop-down menus to complete the statements to match the information shown by the graph.
A graph has time (years) on the x-axis, and height (feet) on the y-axis. A line labeled redwood starts at (0, 0) and has positive slope. A line labeled poplar starts at (0, 0) and has greater positive slope than redwood.
Poplar trees grow
redwood trees per year because the
of the graph for poplar trees is
that of the graph for redwood trees.
The
of the graph tells you the unit rate in
.
Please Help!!!
Answer:
I can't understand yr question man...........
What is the difference between a photon and a molecule?
Answer:
See Explanation
Step-by-step explanation:
An atom is the smallest particle of matter holding the basic properties and characterstic of the matter. An atom consist of positive charged protons and chargeless neutrons at its centre and the negatively charged electrons are revolving around the nucleus. An atom do consist of energy levels corresponding to which the electrons revolve around the nuclues in the respective energy level.
Now a photon is an energy packet, or we can say a particle of light carring energy with it.
An atom is a particle of a matter and a photon is a particle of light.
Which measure of center is the most appropriate for the data in Table 2 (Weight)? Give a reason for your answer.
Answer:
Mean
Step-by-step explanation:
Find the area of the figure. Round your answer to the nearest hundredth
Answer:
28.57 in²
Step-by-step explanation:
Okay, so the hearts tops area can be figured out with a regular circle area calculation.
A = π r² =
3.14 × 2 × 2=
6.28 × 2 ≈
12.566in ² .
So we could divided by two, but since the two half circles (the top of the hearts) are of the same size, we don't have to. So now we only have to figure out the area for the square. The radius shows us that one side of the square is equal to 4 in. So 4² or 4 × 4 = 16 in².
No all we do is add the areas: 12.566 + 16 = 28.566 in²
Now to round it: 28.566 in² ≈ 28.57 in²
A solid is sliced parallel to its base. Which solid will form a circle when sliced parallel to its base?
A: rectangle
B: Square
C: pyramid
D: cone
Answer:
D
Step-by-step explanation:
A cone's base is a circle, slicing the solid parallel to the base would create a smaller circle above.
You have a jar of 20 jellybeans with 4 red beans, and you take out 1 red jellybean. Now, after taking out this bean, what is the new probability that you will pick a red jellybean out of the jar?
a. 4/19
b. 4/20
c. 3/19
d. 3/20
Ashley tutors English. For each hour that she tutors, she earns 20 dollars.
Let 'E' be her earnings (in dollars) after tutoring for 'H' hours.
Write an equation relating 'E' to 'H'. Then use this equation to find Ashley's earnings after tutoring for 13 hours.
Nine friends divide two bags of apples equally between them. Enter the division represented by this situation as a fraction.
The division in the situation represented as a fraction is
Answer:
2/9, because it is 2 divided by 9. i think this is correct
Step-by-step explanation:
Answer:
The answer is 2/9
Step-by-step explanation:
Ivan is 162.4 centimeters tall and is building a tower out of cans that he wants to be as tall as he is. He wants to know how many cans he will need, but he forgot to measure the length of 1 can. He knows that 10 cans are 56 centimeters tall. If he starts building the tower of cans on a stool that is 28 centimeters tall, how many cans does he need for his tower?
Answer:
Ivan will need 24 cans. 56/10 = 5.6. Each can is 5.6 cm tall. 162.4-28 =134.4
134.4/5.6 = 24
Step-by-step explanation:
There are 25 Treats on The fable. Cynthia has to fill 5 baskets with These Treats. If she places an equal number of Treats inside of each basket, how many will there be in each?
Answer: 5 treats
Step-by-step explanation:
25 ÷ 5 = 5
Part A
Fill in the blanks to complete the sentence.
Zuri rides her bike 10 miles per hour on a biking trail. She starts at mile marker 2 and heads in the direction of mile marker 3. Each marker indicates a distance of 1 mile.
Part A
Complete the table to show the relation between the location of Zuri on the bike trail and time spent riding. Express your answers as whole numbers or decimals.
Time Riding (min) Mile Marker
0
15
30
45
60
Answer:
60
Step-by-step explanation:
A city has an elevation of -17 meters closer to sea level than a city that has an elevation of -40 meters. Agree or Disagree? Why?
Answer:
Agree
Step-by-step explanation:
This is because -17 is closer to zero. -40 is farther away from zero. Zero is where the sea and the surface meet. Hence, -17 being the bigger number, and also being the number closer to zero.
A fair six-sided die is rolled 54 times. Theoretically, about how many times should a roll of "3" occur?
A music store rents instruments to students at the local middle school. Each trumpet rents for $10 a month and each drum rents for $5 a month. The monthly income is $100 and the total number of kids who rent instruments is 12. Write and solve a system of equations to find the number of trumpets rented () and the number of drums rented (y).
In the diagram, m∠1=(113−y)°, m∠2=36°, and m∠3=(x+34)°. Write an equation to solve for x and an equation to solve for y. Find the values of x and y.
Answer:
Sorry I don't know the answer but here's where you can find it! bit .ly/3gVQKw3
please help, I give brainliest. Thank you
Answer: 1/4 the pizza
Step-by-step explanation:if they both had a half a pizza but he only ate half of that that means he would had only ate 1/4 the pizza
Answer:
If Joe and Scott equally split the pizza in half , and Scott only eats 1/2 of his portion Scott would have 1/4 of the pizza
Step-by-step explanation: THERES UR ANSWER :)
20 points for first person to answer
Answer:
3, 4 and 5
Step-by-step explanation:
The total number of marbles Janae, Jerome and Gwen have is m + m + 4(m + 2).
m + m + 4(m + 2)
= 2m + 4m + 8
= 6m + 8
The problem says that the total number of marbles Janae, Jerome and Gwen have is less than the number of marbles John has, so that means 6m + 8 is less than 8m + 4
6m + 8 < 8m + 4.
(6m + 8) - 4 < (8m + 4) - 4
6m + 4 < 8m
4 < 8m - 6m
4 < 2m
1 and 2 aren't valid so the answer is 3, 4 and 5.
Which store has the lowest cost per pound for hamburger? Name of Store Hamburger package sizes (lbs) Cost per package ($) Food King 8.0 pounds $40.00 Thrifty Mart 0.5 pounds $3.00 Shop More 5.0 pounds $35.00 Super Save 1.5 pounds $10.50
Please help me! I will give brainly
Answer:
B. d=15h
Step-by-step explanation:
please dont answer if your not sure
Answer:
AC 4x + 16
Angle BEC is 72 degrees
Step-by-step explanation:
AE is 2x + 8, and AC is 2 times bigger, so 4x + 16
Angle EAD is the same as angle EDA, which is 54 degrees, a triangle has 3 sides measuring 180 degrees total, 54 + 54 = 108, so the last angle is 180 - 108 = 72, angle AED is 72, since angle BEC is the same as angle AED, it is also 72 degrees
Baily has been measuring the growth of a flower. It has grown ¾ of an inch each week. It is now 3 inches tall. How many weeks have passed.?
Answer:
Step-by-step explanation:
Balls
find three consecutive integers whose sum is -54 show work please
Answer:
it would be positive 54
Step-by-step explanation:
Pls do not think my answer is correct im just guessing
Step-by-step explanation:
• let x be the consecutive integer• x + (x+1 )+(x+2)= -54 so we have three x's and the sum of 2 and 1 =3
=> 3x+3=-54
=> 3x=-54-3
=> 3x=-57 divide -57 for 3
=> x=-19
=> x+1= -19+1 = -18
=> x+2= -19+2=-17
there fore the three consecutive integers are -19,-18,-17
check-19+-18+-17=-54
Hello, so how is everyone doing?
A. Great!
B. I'm fine, could have been better.
C. I'm doing alright :)
D. Amazing!!
-
Hey, if your not doing well, just know that someone will always love you and take care of you alright? You got this, stay strong! <3
Answer:
c
Step-by-step explanation:
thx for the message
Answer:
Thanks so much of asking! I'm A, it's hard to find a kind soul like you out there in the world! :) How about you?
-Aphrodite
Step-by-step explanation:
If you are finding the space that a 2-dimensional object occupies, are you finding area or volume?
A. area
B. volume
For 2-dimensional object, you will find the area of the objects.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
You are finding the space that a 2-dimensional object occupies.
Now, We know that;
For 2 -dimensional object, we will find the area of the objects for finding the space that a 2-dimensional object occupies.
And, For 3 -dimensional object, we will find the volume of the objects for finding the space that a 2-dimensional object occupies.
Hence, For 2-dimensional object, you will find the area of the objects.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ3
1 of many ALEKS questions
(screenshot)
zoom in to see question.
Answer:
d
Step-by-step explanation:
because it is promotional
Please help!!!! Please help!!!!
Answer:
44 cm²
Step-by-step explanation:
To find the area of a compound figure like this, we can divide the shape into various rectangles and compute the areas of them separately before adding them together.
There are several ways to divide this shape, but for this we will section the shape into a 3×3 square, 4×2 rectangle, and a 3×9 rectangle.
To find the areas of them, multiple the length by the width.
For the 3×3 square at the top right-
[tex]A=3\cdot 3[/tex]
[tex]A=9[/tex]
The square is 9 cm².
For the 4×2 rectangle at the top left-
[tex]A=4\cdot 2[/tex]
[tex]A=8[/tex]
The rectangle is 8 cm².
For the 3×9 rectangle at the bottom-
[tex]A=3\cdot 9[/tex]
[tex]A=27[/tex]
The rectangle is 27 cm².
Now that we have the areas of each individual piece of the figure, we can add them together to find the total area of the shape.
[tex]A=9+8+27[/tex]
[tex]A=44[/tex]
The area of the figure is 44 cm².
I hope this helps ^^ Good luck :)
Which statement best illustrates using the vertical line test to determine if the graph below is a function of x? On a coordinate plane, a circle is centered around (0, 0).
A. The graph is not a function of x because the line x = 0 intersects the graph at two B.points. The graph is a function of x because the line x = 5 does not intersect the graph.
C.The graph is not a function of x because the line y = 0 intersects the graph at two points.
D.The graph is a function of x because the line y = 5 does not intersect the graph.
Plzzzzzz help will mark brainliest plz plz plz plz plz help help help help me me me me me i'm begging i don't want to fail plz plz plz plz help me me me i'm begging plz plz plz plz plz plz plz plz
Answer:
If something is a function, every x-value, only has one (1) y-value. If the line x = 0 intersects the graph in two points, there are to values for y (instead of one). Therefore the graph is not a function of x.
Your answer is A.
Step-by-step explanation: