does 3/7 , 12/21 make a proportion
Answers
Answer:
No, it does not.
Step-by-step explanation:
The question, does 3/7 and 12/21 make a proportion, does not. It does not make a proportion, because for 3 to equal 12, you must multiply by four. when you multiply 7 by 4, you get 28. that is not right. if this explanation is too confusing, i added a picture
Related Questions
Find volume and surface area
Answers
If the diameter of the circle on the cone is 8 then the radius is 4.
V = (pi • 4^2 • 9)/3
V = 48pi in^3
Surface are of cone given radius.
= pi • r^2 + pi • r • square root of r^2 + h^2
A = 3.14 • 4^2 + 3.14 • 4 square root of 4^2 + 9^2
A = 16 • 3.14 + 4 square root of 97 • 3.14
A = 50.24 + 4 square root of 304.58
A = 50.24 + 69.81
A = 120.05
1. Find the volume of the cylinder. (no units-round to nearest tenth
7 km
8 km
Answers
Answer:
1407.43 would be your answer
Step-by-step explanation:
The formula is [tex]\pi r^2h[/tex], so plug 8 and 7 into the equation, and you'll get your answer. Hope this helps :)
Solve for x. 85+5x-10=11x+3
Answers
Refer to the diagram shown.
Answers
Answer:
60º
Step-by-step explanation:
By leading figure estimation, approximate the value of 5 850÷22
Answers
30 points! See pic attached. Will mark brainliest.
Answers
Answer:
Step-by-step explanation:
i think it a c e i hope this helps :^
answer: D,B,C
Step-by-step explanation:
line A is perpendicular to B and line A and B is parallel to line C
2 pounds of grapes cost $8 How do they cost per pound? How many pounds of grapes do you get per dollar?
Answers
Answer:
$4 per pound and 0.25 pounds per dollar
Step-by-step explanation:
48 divided by 2 = $4
1 divided by 4 = 0.25
Please help me lol!!!!!!
Answers
Answer:
A
Step-by-step explanation:
help me out with this so confused
Answers
Answer:
The answer is 3.
Step-by-step explanation:
A rational number means the number can be written as a fraction of two integers. [tex]5\sqrt{9}[/tex]=5*3=15, so it is the only rational number. The other answers cannot be written as a fraction of two integers.
– 7y = 7x + 21
Please I need these two question answered fasttttt, I need to get the slope and y-intercept for both these problems.
Answers
Answer:
slope=-1
y-intercept=-3
Step-by-step explanation:
if you solve the equation, it equals y = -x-3 since you divide -7 from both sides
Clean123 Inc. performs 1,000 of cleaning services for a customer. After 30 days the computer pays 50% of the invoice with a check. How will this transaction be recorded
Answers
did you get ittttt???
please help me out
Kim drives 156 miles from rotherman to London she drives the average speed of 60 miles per hour
Answers
Answer:
2 hours and 36 minutes
Step-by-step explanation:
156/60 hours=2.6 hours. i.e. it takes her 2 hours and 36 minutes to reach from Rotherham to London
answer this. I will giveBRAINLIEST
Answers
Answer:
Multiply both sides by 3, then subtract 6 from both sides
Step-by-step explanation:
d + 6 / 3 = 6 (multiply both sides by 3)
d + 6 = 18 (subtract 6 from both sides)
d = 12
Answer:
d+6= 18.
d= 12
multiply both sides by 3
subtract 6 from both sides
Which is 42.364 written with words?
Answers
3n - 2n- 6h + 9
Pls help ASAP
Answers
Answer:
n-6h+9
first you subtract the ns from each other because those are the only like terms
So first you get all the like terms together from calculating the addition sequence here from their coefficients
So
(3-2-6)x+9
Now you calculate the difference in the parenthesis
-5x+9 is your answer and you leave it like that because you can’t really do anything else just leave it how it is
Given g(x)=30-6x, find g(-4)=____?
Answers
Answer:
g(-4)=54
Step-by-step explanation:
g(-4)=30-6(-4)
g(-4)=30+24
g(-4)=54
*. John pulled a black sock from his drawer. He has 5 black socks, 4 navy socks, and 6 brown socks left in the drawer. He picks another sock at random. What is the probability it matches the black one? A.1/6 C. 1/3 B. 1/5 D. 1/2
Answers
Answer:
C
Step-by-step explanation:
A company makes Poppy Lapel Pins.
Each of them costs £1.10 to make.
In October it made 1000 lapel pins.
35% of them are given to charities.
The rest are sold in two formats: 60% of them at £3.00 each
40% of them at £5.00 for 2
Assuming that all the lapel pins will be sold by the end of November,
work out the percentage profit the company should make.
Give your answer to 1 decimal place.
Answers
Answer:
1000 less 35% == 650
so 250 given to charity
total cost making the pins was 1000x 1.10 = 1100
so you need to find 60 percent of 650 =390
and 40 percent of 650 = 260
so then you need to find the cost 390 x 3 pounds each so × this and gives you 1170 cost sold for intotal
Then you have 260 ÷2 = 130 x 5 = 650
so you have 650+1170 = 1820 - 1100 cost to make =720 pounds
think this right
If m<FCB = 84°, then what is m<MCA?
Answers
Explanation:
Angle MCA = FCB (Vertically opposite angle)
So if FCB = 84 degrees
Thus, MCA also equal 84 degrees
write the first four terms of the arithmetic sequence given a1=-3 and d=-2
Answers
2) -5
3) -7
4) -9
Explanation:
Arithmetic Sequence Formula
a(n) = a1 + (a - 1) (d)
a= term position
a(n)= nth term
a1= first term
Tickets to a play cost $4 in advance and $5 at the door. The theater club president wants to raise at least $400 from the ticket sales. If the club sells 40 tickets in advance, what is the least number of tickets the club needs to sell at the door to reach the president’s goal?
Least number of tickets =
Answers
Answer:
x≥48
Step-by-step explanation:
4×40 = 160
400-160 = 240
240÷5 = 48
y = 2x - 1
y=-3x + 4
Solve the following system of equations for x
Answers
Answer:
x = 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 2x - 1
y = -3x + 4
Step 2: Solve for x
Substitution
Substitute in y: 2x - 1 = -3x + 4Add 3x on both sides: 5x - 1 = 4Add 1 to both sides: 5x = 5Divide 5 on both sides: x = 1Answer:
[tex]y = 2x - 1 \: and \: y = - 3x + 4 \\replacing \: the \: value \: of \: y, \: we \: get \\ 2x - 1 = - 3x + 4 \\ 5x = 5 \\ \boxed{x = 1}[/tex]
x= 1 is the right answer.The number 12 is divisible by... select all that apply.
15 points
2
3
4
5
6
9
10
Answers
Answer:
2, 3, 4, 6
Step-by-step explanation:
Answer:
2,3,4,6
Step-by-step explanation
12 divided by 2 is 6
12 divided by 3 is 4
12 divided by 4 is 3
12 divided by 6 is 2
How do you do this?
Answers
Answer:
132 degrees
Step-by-step explanation:
its asking for angle r, right? the degrees they give you is across from the needed angle. in class alone that would give you the answer, but since a line is 180 degrees, 180 minus 132 is 48 degrees, 48 plus a unknown angle(r) is 180. hence 132
Julien is baking cookies with his mother.
The recipe calls for:
1 ½ cups of flour
2 ⅔ cups of oatmeal
3 ¼ cups of chocolate chips
1 cup of sugar
½ cup of brown sugar
The only measuring cups that Julien can find are ⅛ cup and ⅓ cup. How will he make the cookies?
Answers
Answer:
well quite easily just doing the math
Step-by-step explanation:
Ta -Da
1 1/2 cups of flour = 12/8 cups of flour
2 2/3 cups of oatmeal = 2 2/3 cups of oatmeal
1 cup sugar = 3/3 or 8/8 cups of sugar
1/2 cup of brown sugar = 4/8 cups of brown sugar
(2x - 5), (2 +30), and (2x – 5)
Solve for x
Answers
Can u pls help me with this question
Answers
Answer:
21 is the answer your welcome
A family prepares an emergency kit for their home. The kit contains 63 gallons of drinking water. The family's daily drinking water needs are 3 1/2 gallons for the adults and 1 3/4 gallons for the children. For how many days would this emergency water supply last the family
Answers
Answer:
12 days
Step-by-step explanation:
Total gallons of the family's drinking water needs = gallons consumed by children + gallons consumed by adults
3[tex]\frac{1}{2}[/tex] + 1[tex]\frac{3}{4}[/tex] =
Converting to decimals
3.5 + 1.75 = 5.25 = 5[tex]\frac{1}{4}[/tex]
If there are 63 gallons, the water supply would last for :
63 / 5.25 =12 days
Answer: 12 days
Step-by-step explanation: They have 63 gallons, they are using approximately 5.25 per day, so if you divide you will get 12 days
If you could help I would really appreciate it, but if not that’s fine. Thank you.
Answers
x=5
so 5 is the answer!
Pedro drives the same route to work on Monday through Friday. His route includes one traffic light. According to the local traffic department, there is a 55% chance that the light will be red when he arrives at the intersection on a randomly selected workday. Suppose we choose 10 of Pedro's workdays at random and let Y = the number of times that the light is red.
Answers
Answer:
6 days
Step-by-step explanation:
Given
The proportion can be represented as:
[tex]p = 55\%[/tex]
And the number of days can be represented as:
[tex]n = 10[/tex]
Required
Determine the expected number of times, the light is red
To do this, we simply multiply the proportion by the number of days:
[tex]Y = n * p[/tex]
Substitute values for n and p
[tex]Y = 10 * 55\%[/tex]
Convert percentage to decimal
[tex]Y = 10 * 0.55[/tex]
[tex]Y = 5.5[/tex]
Approximate
[tex]Y = 6[/tex]
Hence, the expected number of days is 6 days