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Explanation:
Adding an even number to an odd number always results in an odd number
even + odd = odd
odd + even = odd
So if 'a' is odd, adding 2 onto it (even number), leads to an odd result of a+2.
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Extra Information (optional section)
If you are curious why the two equations shown above are true, then here's a proof.
Let 'a' be an odd number. This means a = 2k+1 for some integer k. We add 1 to any multiple of 2 and it goes from even (2k) to odd (2k+1).
If we made b an even number, then b = 2m for some integer m.
Adding 'a' and b gives us...
c = a + b
c = ( a ) + ( b )
c = ( 2k+1 ) + ( 2m )
c = (2k+2m) + 1
c = 2(k+m) + 1
c = 2n + 1 .... where n = k+m
The result a+b is an odd number since it is in the form 2*(integer)+1
It verifies the claim that odd+even = odd.
So this shows that a+2 is also odd, since we let b = 2.
Need help checking my answers thanks!!
The population of bacteria in an
experiment is increasing by 90% each
day. If there were 100 bacteria at the
beginning of the experiment, predict the
number of bacteria in 5 days.
First, complete the equation:
Future Amount = 100(1 +0.90) [?]
Answer:
5
Step-by-step explanation:
5 makes sense since the period of time this takes place is 5 days. therefore [?] should be 5
The number of bacterias increases in 5 days will be 1790.
What will be the bacterial growth?
The bacteria number is increasing day by day the function which shows the bacterial growth is given as Future amount = 100(1+0.9)⁴'⁵.
Now the bacterial growth will be:-
Future amount = 100 ( 1 + 0.9 )⁴'⁵.
Future amount = 100 ( 1.9 ) ⁴'⁵.
Future amount = 1790
Therefore the number of bacterias increases in 5 days will be 1790.
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which table is proportional?
NEED ASAP!!
Name all the radii shown on this circle. Select all that apply.
All the radii are-
SO
RO
AO
BO
Answer:
O to S
O to R
O to B
O to A
Step-by-step explanation:
Radius is any line that connects the center of the circle to a point on the circle.
Which expression is equal to 5/2?
A. 5 divided by 2
B. 5 + 2
C. 2 + 5
D. 2 divided by 5
my answer was D I think it is the one
Find the product.
0.46 x 0.23
A. 0.0230
B. 0.1058
C. 0.01058
D. 0.958
Answer: it is b
Step-by-step explanation:
Flor tiene una papelería y vende los lápices en $12 y los bolígrafos en $20. ¿Qué expresión algebraica permite saber cuánto debe cobrar Flor por 10 bolsas que contengan x cantidad de lápices y "y" cantidad de bolígrafos?
Answer:
c=120x+200y
Step-by-step explanation:
La expresión algebraica debería indicar que el valor total que debe cobrar Flor es igual a 10 que representa el número de bolsas por el resultado de la suma del precio de cada item por la cantidad, lo que se puede expresar de la siguiente forma:
c=10(12x+20y)
c=120x+200y
De acuerdo a esto, la expresión algebraica que permite saber cuánto debe cobrar Flor por 10 bolsas que contengan x cantidad de lápices y "y" cantidad de bolígrafos es c=120x+200y.
Solve using the substitution method. What is the y coordinate of the solution?
y = 3x - 6
15 x + 3y= 30
Question 1 options:
y = 2
y = -2
y= 3x -6
y = 0
solve for x for the triangle
Step-by-step explanation:
90° + 2x-2 + x+5 = 180° [Angle sum property of triangle]
=> 90 + 2x + x - 2 + 5 = 180°
=> 3x + 93 = 180
=> 3x = 180 - 93
=> 3x = 87
[tex] = > x = \frac{87}{3} [/tex]
=> x = 29 (Ans)
HELP PLEASE I NEED HELP WITH THISSSSSSSSSS
If 20 yards of carpet weighs 30 pounds, how much do 34 yards weigh in pounds?
PEOPLE!!!!! I NEED HELP! I HAVE AN EXAM COMING IN 2 DAYS!! PLEASE HELP!
Answer:
20/30=x/34
2/3=x/34
3x=2×34
3x=68
x=68/3
x=22.67pounds...
34 yards of carpet weighs 51 pounds.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given that, 20 yards of carpet weighs 30 pounds.
Here, 1 yard of carpet weighs = 30/20
= 1.5 pounds
34 yards of carpet weighs
= 34×1.5
= 51 pounds
Therefore, 34 yards of carpet weighs 51 pounds.
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I need help thank you
Answer:
C i think
Step-by-step explanation:
pls mark brainlyest
Answer:
B. HL
Step-by-step explanation:
Which lists shows the values of the differences ordered from least to greatest?
Adela, Tony, Pang, Ruben
Adela, Pang, Ruben, Tony
Pang, Ruben, Adela, Tony
Tony, Adela, Ruben, Pang
Answer:
Pang, Ruben, Adela, Tony
Step-by-step explanation:
Given that
Adela: 0.75 year
Tony: 11
10
years
Pang: –0.8 year
Ruben: -1
2
year
So according to this the third option is correct as it represent the ordered from least to greatest
Answer:
c
Step-by-step explanation:
yes
Find the total amount of money you will have after 4 years if you begin with $500 at an interest rate of 3%
Answer: total amount of money = Initial amount × rate × time in years
= 500 × 3 × 4 = 6000 dollars.
I forgot how to do this please help
pls help. need explanation too pls
Answer:
-3 ≤ x ≤ 13Step-by-step explanation:
Values on x- axis between -3 and 13 both numbers included:
x = [-3, 13]-3 ≤ x ≤ 134
3.
A factory can produce 720 wagons in an 8-hour
day. What is the unit rate per hour?
sle
B.
Answer:
9
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
i think its 90 because if 720 could be produced in 8 hours then 90 are being produced each hour
Comparing Positions on a Grid
15. Use the points (21, 38), (38, 25),
(25, 38), and (38, 25).
a) Which point is farthest left?
b) Which point is farthest right?
c) Which point is highest up?
d) Which point is lowest down?
Answer: C
Step-by-step explanation: I help ;) please give me brainliest
Evaluate the expression x + 9 when
x = 10
two horses are filling a pool
Answer:
What is the actual question?
Step-by-step explanation:
A can vegetables has radius 1.8 inches in height 5.7 inches find the volume of the can use 3.14 for Pi
Answer:
about 58
Step-by-step explanation:
factor completely and explain 4xy-14x+16y-56
Answer:
2(2y−7)(x+4)
Step-by-step explanation:
Factor 4xy−14x+16y−56
4xy−14x+16y−56
=2(2y−7)(x+4)
Help me please I’ll mark you as brainliest
Answer:
not 100 percent sure but i think f
Step-by-step explanation:
Hi, can anyone help me with this. I'm really confused lol
Answer:
X=8
Step-by-step explanation:
since we know these lines are parallel that means that the 2 angels given to us are supplementary (add up to 180) so we add them together and set it equal to 180 to find X.
If the sales tax rate is 7.5%, then how much sales tax would you pay for a $25 pair of pants?
Answer:
$26.88
Step-by-step explanation:
25(1.075) ≈ 26.88
Answer:
You'd pay $26.88
Step-by-step explanation:
So, you do 7.5%(25).
Then, you have 1.875, which rounds to 1.88
Next, you add 1.88 to 25.
Finally, you got your answer, $26.88
Stanley's milkshake recipe calls for 5/6 of a scoop of ice cream and Charlie's recipe calls for 1/3 of a scoop. How many more scoops of ice cream are used in Stanley's recipe than in Charlie's recipe?
Write your answer as a fraction or as a whole or mixed number.
scoops
Answer:
3/6 or 1/2 scoop
Step-by-step explanation:
Answer:
1 1/2 more
Step-by-step explanation:
If you convert 5/6 to a 3rd it would be 2.5/3
2.5 - 1= 1.5.
1.5 as a fraction is 1 1/2.
Hope this helps!:)
-Amelia
WILL GIVE BRAINLIEST
Answer:
V=πr²h
V=(3.14)(15cm)²(325cm)
V=229,613 cm³
Answer:
d
Step-by-step explanation:
trust me i used online calculator and got that exact answer
pls make me brainliest :)
Put these numbers in order from least to greatest: -4 2/5 -4.5 -5.1 -4.45 -5 -
Answer:
-5.1, -5, -4.5, -4.45,-4 2/5
Answer:
-5.1, -5, -4.5,-4.45,-4 2/5,
Step-by-step explanation:
Lets put all the number in decimal form from least to greatest.
-4 2/5= -4.4
Remember the lower the negative integer is, the higher it is on the number line.
-5.1, -5, -4.5, -4.45, -4 2/5,
A cable company had 132 subscribers. The ratio of regular subscribers to premium subscribers was 3:8. How many regular subscribers did they have?
Answer: 49.5 ~50
Step-by-step explanation: 132/8=16.5 16.5(3)=49.5
Answer:
49.5
Step-by-step explanation:
Determine the value of x that would make quadrilateral LMNO a parallelogram.
3
9
11
18
Answer:
9
Step-by-step explanation: