The natural numbers are "closed" under addition and multiplication. ... The subtraction of two natural numbers does NOT necessarily create another natural number (3 - 10 = -7). The division of two natural numbers does NOT necessarily create another natural number (1 ÷ 2 = ½). not closed under subtraction and division.
classify the following system y = 5x + 3. Possible answers no solution, one solution or infinte solutions
Answer: Infinite solutions
Subtract 4x3 + 3 from 6x3 – 5x – 7.
Suppose a 5-mintue overseas call costs 6.45 and a 10-minute calls costs 11.40. The cost of a call and the length of a call care related. Write an equation to show the cost of a call for any duration. Approximately how long can you talk on the phone if you have $51 to spend?
Answer:
The Equation for this is given as
C = $0.99x + $1.50
Where x = number of minutes
C = Cost of the call
If you have $51 to spend , the duration of the call is approximately 50 minutes
Step-by-step explanation:
Step 1
The difference in the cost of the calls is calculated as:
$11.40 - $6.45
= $4.95
The cost for a 5 minute call is calculated as:
$4.95 ÷ 5 = $0.99
Extra charges for the 5 minutes call =
$6.45 - $4.95 = $1.50
The Equation for this is given as
C = $0.99x + $1.50
Where x = number of minutes
C = Cost of the call
If you have $51 to spend, the number of minutes you would get is :
$51 = $0.99x + $1.50
$51 - $1.50 = 0.99x
$49.50 = 0.99x
x= $49.50/0.99
x = 50 minutes
Therefore, If you have $51 to spend , the duration of the call is approximately 50 minutes.
...............................................................................................................................................................................help.....................................................................................................................................................................................................................................................
Answer:
the 2nd one
Step-by-step explanation:
hope this helped!
p.s it would be cool if you would give me brainliest
Is it true that if you know one side length of an isosceles right triangle, then you know all the side lengths? Explain
Answer:
This is false.
Step-by-step explanation:
You must know at least 2 sides on a right angle to know the length of all 3 sides. This is because you must use side A and B to find side C (The hypotenuse).
distance formula, help pls
Answer:
[tex]d = 2\sqrt{10}[/tex]
Step-by-step explanation:
(4, 3) (6, 9)
[tex]d=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2} }[/tex]
[tex]d=\sqrt{(6-4)^{2} +(9-3)^{2} }[/tex]
[tex]d=\sqrt{(2)^{2} +(6)^{2} }[/tex]
[tex]d=\sqrt{(4 +36)}[/tex]
[tex]d=\sqrt{40} = 2\sqrt{10}[/tex]
x and y intercepts of 8y=9x-12
Answer:
x-intercept(s): ( 4 /3 , 0 )
y-intercept(s): ( 0 , − 3/ 2 )
Step-by-step explanation:
To find the x-intercept, substitute in 0 for y and solve for x .
To find the y-intercept, substitute in 0 for x and solve for y .
Answer: 3,9
Step-by-step explanation: divided it
PLS ANSWER ASAP
Fine the missing measures:
EF:
angle of F is 134, why? Because each triangle is 180 degrees altogether.
Step-by-step explanation:
The ratio of dogs to cats at the pet store is 3 : 4. There are 21 total pets. How many cats are in the pet store? Hint: you may want to make a tape diagram.
Answer: 12 cats
Step-by-step explanation:
first add 3 and 4 together to get 7
divide 21 by 7 to get 3
if there are 4 cats out of 7 pets in the store, you should be able to multiply 4 by 3 to get the total amount of cats in the whole store to get 12
it's easy but plzz help me..
I will give u brainliest!!
Answer:
You can figure this out by measuring the 200 pages together and then divide by 200.
Step-by-step explanation:
Answer: Measure all the sheets together and divide by 200.
Step-by-step explanation: An average mean is the sum of something divided by how many things there are. In this case, it is the sum of the thickness of 200 pages, divided by the number of pages, 200.
Haley’s recipe calls for 4.5 cups of an ingredient. Her measuring bowl only has measurements marked in liters. Hayley knows that one cup is approximately 2.4 liters. Which measurement is closes to the number of liters of the ingredient that Haley needs for her recipe?
A. 8.8 liters
B. 7.8 liters
C. 9.8 liters
D. 10.8 liters
Whats the slope?
Hurryyyyyyyyy
Answer: 3/4
Step-by-step explanation:
When you rise from the first point , it’s three spaces to get in the same line as the second point, then when you run to the right , you are moving four spaces to the right therefore the answer is 3/4
HELPPP THIS IS FOR TODAY
Answer:
1: 15
3:56
4:35
5:56
6:61
Step-by-step explanation:
What u need to do is start with the lowest number of Wave Heights like I did above and then just graph it that way. gud luck bebs (:
May I plz have Brainliest?
I NEED ANSWER ASAP
Two pounds of peaches cost $450, 5 pounds cost $11.25, and 10 pounds cost $22.50 Show that the relationship between the number of pounds of peaches and the cost is a proportional relationship. Then write an equation for the relationship
The equation needs to be written in y=kx format using no spaces and no capital letters.
Answer:
y=2.25x
Step-by-step explanation:
4.50 ÷ 2 = 2.25 per pound
11.25 ÷ 5 = 2.25 per pound
22.50 ÷ 10 = 2.25 per pound
Proportional relationship as each pound cost $2.25, and will increase accordingly per pound.
constant of proportionality: 2.25
pounds: x
cost: y
y = kx
y = 2.25x
Answer:
Step-by-step explanation:
Y=2.25
Because 4.50/2 = 2.25
11.25/5 = 2.25
22.50/10 = 2.25
Each of the four shapes represents a positive whole number. The sum of the shapes in each row and column is displayed at the end of each row and column. Using this information, determine the numerical value of each shape.
9514 1404 393
Answer:
A = pentagon = 6
B = 5-pointed star = 8
C = rectangle = 4
D = spiral = 3
Step-by-step explanation:
Starting in the upper left corner, name the shapes A, B, C, D clockwise in the 2×2 square in that corner. Then we have ...
A = pentagon
B = 5-pointed star
C = rectangle
D = spiral
__
It turns out to be convenient to look at rows and columns with two of each shape.
Row 2: 2(C+D) = 14 ⇒ C+D = 7
We can use that in column 2 to find B:
B +C +B +D = 23 ⇒ 2B +(C+D) = 23 ⇒ 2B = 16 ⇒ B = 8
This lets us find D:
Row 4: 3D +B = 17 ⇒ 3D +8 = 17 ⇒ 3D = 9 ⇒ D = 3
So, C can now be found:
C+D = 7 ⇒ C +3 = 7 ⇒ C = 4
Finally, we can find A:
Row 1: A +2B +D = 25 ⇒ A +2(8) +3 = 25 ⇒ A = 6
__
In summary, the numerical values are ...
A = pentagon = 6
B = 5-pointed star = 8
C = rectangle = 4
D = spiral = 3
. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . .
MARKING BRAINLIEST FOR HELP
Answer: -4.75
Step-by-step explanation: YOU OR YOUR PARENTS VOTE BIDEN! TRUMP KILLED 223,000 PEOPLE AND HE STILL DOES NOT CARE! HE SAYS WE ARE ROUNDING THE CORNER. HE CAN NOT EVEN HAND OUT STIMULUS TO DYING BUISNESSES AND AIRLINES!
Answer:
the answer is 3/4
Step-by-step explanation:
I know this anser
Find the value of x in the triangle shown below
x = ?
Answer:
The correct answer is 33°
least to greatest 4/5,-1.4, 0.75, -21/3,21%
Answer:
-21/3 < -1/4 < 21% < 0.75 < 4/5
Step-by-step explanation:
is 60/15 a natural number
Answer:
YES
Step-by-step explanation:
NATRURAL NUMBERS ARE 1 AND UP NON DECIMAL
There were minty people at a Halloween party eighteen of the costumes were ghosts what percentenge of the people were dressed as fhosts
Answer:
ozark Paul pick icky office
Which expression best estimates 6-12
O 7-2
06-1
0 3-2
HELLP
Answer:
3-2is the sufficient way to form your calculations
what do all unit rates have in common in maths
Answer:
A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. In each case the first quantity is related to 1 unit of the second quantity.
Step-by-step explanation:
Answer:
A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. In each case the first quantity is related to 1 unit of the second quantity.
Step-by-step explanation:
A yoga studio memberships that cost $54 per month for unlimited classes.the studio also accepts walk-ins,charging $3 per class. How many classes in a month will it take for the walk-in amount to cost the same as monthly membership
Answer:18 pretty sure
Step-by-step explanation:
if i’m right you just divide
18
Step-by-step explanation:
18 times 3 = 54
this is the answer
A company policy requires that for every 30 employees there must be 3 supervisors. If there are 264 supervisors in one company how many employees does the company have
Answer:
27
Step-by-step explanation:
264/30=8.8
8.8*3=26.4 there cannot be a fraction of a person, unless you're a serial killer, so you'd round it up to 27, or 26. Whichever goes with what you've been learning.
Either A or B HURRYYY
Answer:
B
Step-by-step explanation:
because all the angles add up to 180
How many half rests are in one whole rest?
2 half rests. 4 beats in a measure half that is 2 a whole rest is 4 beats long
36 even : 12 odd
Write the ratio as a fraction in simplest form.
The proportion is given by the equation 36/12 = 3 / 1 or 3 : 1
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the proportion equation be represented as A
Now , the equation will be
Let the first number be represented as p = 36
Let the second number be represented as q = 12
Now , the proportion A = p / q
Substituting the values in the equation , we get
A = 36 / 12
On simplifying the equation , we get
A = 3 / 1
Therefore , the value of A is 3 : 1
Hence , the proportion is 3 : 1
To learn more about proportion click :
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Pat rents a car. The car costs $30 per day with an additional charge of $0.10 per mile. He rented it for 7 days and drove 350 miles. What is the cost for renting the car? Write an equation and solve.
Answer:
245
Step-by-step explanation:
30 times 7 is 210 and 350 times 19 cents is 35
Answer:
The equation is y = 30d + 0.10m. The cost is $245.
Step-by-step explanation:
Plug in the values for the equation. The equation will become y = 30(7) + 0.10(350). Solve to get y = 210 + 35. This equals y = 245.
I'm having a bit of trouble, think you can help me out?
Answer:
y=-5/4+3
Step-by-step explanation:
Hannah has an aquarium with 25 liters of water in it. How many milliliters of water are in the aquarium?
Answer:
25,000 milliliters