Mixing is a physical reaction, which does not change any chemical properties of elements and molecules because it does not change the number of protons.
It is the number of protons that determine the unique properties of each element (hence why the periodic table sorts elements by increasing the number of protons).
how much would it cost for one cookie at the price of 2.49
Answer:
$2.49
Step-by-step explanation:
What do you mean?
Pamela's age is three times Jiri's age. The sum of their ages is 68. What is Jiri's age?
Answer:
17
Step-by-step explanation:
x + 3x = 68
4x = 68
x = 17
2) Michelle deposits $250 into a savings account, The account pays 1.5% simple
interest on an annual basis. If he does not add or withdraw money from the account,
how much interest will she earn after 6 months? Round to the nearest cent.
* annual means yearly
to of 2% ner year. How much simple interest will he
Answer:
um michelles broke that couldnt happen
Step-by-step explanation:
Five friends go to the movies. They each pay $9 to get in and $8 for a popcorn and drink combo.
a) Write two different expressions to find the total cost of the outing.
b) Evaluate each expression. Which expression was easier to evaluate? Justify your choice.
Answer:
x=5(9+8)
add 9+8 to get 17
multiply 17 by 5
answer: $85
(5x9)+(5x8)=x
multiply 5x9 to get 45
multiply 5x8 to get 40
add 45 and 40
answer: $85
The first expression was easier to evaluate because it required less steps.
Hope this helps :)
What is the scale factor in the dilation?
Answer: 6
Step-by-step explanation:
Rewrite in simplest terms: (x+10y)-(x+5y)(x+10y)−(x+5y)
Answer:
-x^2-15xy-50y^2+14y
Step-by-step explanation:
2. What is a positive coterminal angle to -123° that is between 500° and 750° and a negative coterminal angle to -123° that is between −300° and −500°?
Answer:
The two angles are 597° and -483°
Step-by-step explanation:
A coterminal angle to a random angle A, is an angle that has the same terminal side as A.
If we know the angle A, all the coterminal angles to A can be written as:
A + n*360°
Where n is an integer number.
In this case, we know that:
A = -123°
And we want to find a coterminal angle that is between 500° and 750°
Then we can do:
X = -123° + n*360°
And find the value of n such that X is between the desired values.
if we use n = 1 we get:
X = -123° + 1*360° = 237°
This is not enough, we can discard it.
If we use n = 2, we get:
X = -123° + 2*360° = 597°
This is a coterminal angle to -123°, and is in between 500° and 750°.
Now we want to find a coterminal angle to -123° that is in between -300° and -500°, we can do the same thing as before, but now we can try with negative values of n.
We can start with n = -1, then:
X = -123° - 1*360° = -483°
This is a coterminal angle to -123°, and is in between -300° and -500°.
Then the two angles are:
597° and -483°
While at the store Mai finds a pair of boots she likes for $45.
After the store applies the 30% discount, how much will the boots cost?
Answer:
$31.5 i used a caculator
Step-by-step explanation:
Apply the transformation M to the polygon with vertices A (6,3), B(-6,4), and C(-2,-6). Identify and
describe the transformation.
Answer:
Step-by-step explanation:
A(6, 3) ------> A' ( 6 - 3, 3 + 4 ) = (3, 7)
B( - 6, 4) ------> B' ( - 6 - 3, 4 + 4 ) = ( - 9, 8)
C( - 2, - 6) ------> C' ( - 2 - 3, - 6 + 4) = ( - 5, - 2)
la medida del vector se llama:
Step-by-step explanation:
suususisissiaisisjsjx
Julie is drawing a map of the town. She knows that City Hall is 3 miles
down Main St. from the fire station. If the scale for the map is 0.25 in.:
0.5 miles, how long should Main St. be between City Hall and the fire
station on the map?
What is 33 percent of 73?
Answer:
24.09
Step-by-step explanation:
Answer:
33% of 73 =24.09
Step-by-step explanation:
table, proportional or non-proportional?
Nicholas started a canned-food drive at school. The equation representing this is y = 235x + 15, where x is the number of days, and y is the number of cans collected. Explain how to determine how many days it would take to collect 2600 cans.WILL GIVE BRAINLIEST
Answer:
well, 11 days
Step-by-step explanation:
if you were to put take out the y and put 2600 in the y place (2600=235x+15)
you solve that, and will come to 11 days
further explaining:
2600-15 = 2585
2585 / 235 = 11
( I'm not sure if this is right, the question is worded weird and almost doesn't make sense)
but I think it is looking for substitution
Hope this helps!
Answer:
I am given a number of cans, which is y, and I need to find the number of days, which is x. To do this, I would substitute 2600 for y, to get 2600 = 235x + 15. Solving for x, I would get x = 11. Thus, it would take 11 days to collect 2600 cans.
This is the Sample Answer on Edge.
Describe a situation that you could represent with an inequality, then write the inequality.
Answer:
I have attached pictures of those below.
Which integer is closest to the square root of
102
?
Jeremy wants to give a 20% gratuity to his cab driver. His fare is $35.50. What is the total amount he will pay the driver? $7.10 $17.75 $42.60 $63.90 (32 dollars) (185 percent) = 59 dollars and 20 cents
Answer:
$42.60
Step-by-step explanation:
His fare = $35.50
Gratuity = 20% of the fare
= 20/100 × $35.50
= 0.2 × $35.50
= $7.10
Total amount he will pay the driver = His fare + amount of gratuity
= $35.50 + $7.10
= $42.60
He will pay the driver a total of $42.60
Answer:
C. 42.60
Step-by-step explanation:
The owner of a small store buys coats for $40.00 each. Answer parts a and b. a. He sells the coats for $72.00 each. What percent of the purchase price is the sale price?
Answer:
180%
Step-by-step explanation:
Answer:
180%
Step-by-step explanation:
NEED HELP PLEAS NEED TO PASS THIS
The slope of the line that passes through the points (0,3) and (5, 13) is?
Answer:
its not there bud
Step-by-step explanation:
i need help w 20 - 7x = 6x - 6
Answer:
20-7x=6x-6
-13x+20=-6
-13x= -26
x=2
Step-by-step explanation:
which expression is equivalent to 1/1-2sin^2(x)?
a. 1/cos(2x)
b. 1/sin(2x)
c. cos(2x)
d. sin(2x)
Answer:
a) [tex]\frac{1}{cos(2x)}[/tex]
Step-by-step explanation:
Answer: a) 1/cos(2x)
Step-by-step explanation:
Edge:))
Ava' s cell phone plan allows her to send up to 125 text messages per month if she sent 90 text so far what percent of her monthly message limit has she used
Answer:
90/125*100=9000/125
9000/125=72
72%
Debbie went to the store and bought 4¼ pounds of apples for $6.00. What is the cost per pound per pound of apples? Round your answer to the nearest CENT, if necessary.( im in middle school so pls keep it simple)
Prove that sin²α + cos²α = 1 and [tex]\frac{1}{cos^{2}\alpha }[/tex] = 1 + tan²α
Answer:
See Explanation
Step-by-step explanation:
[tex] { \sin}^{2} \alpha + { \cos}^{2} \alpha = 1 \\ \\ LHS = { \sin}^{2} \alpha + { \cos}^{2} \alpha \\ \\ = \cancel {\sin}^{2} \alpha + { 1 -\cancel{ \sin}}^{2} \alpha \\ \\ = 1 \\ \\ = RHS \\ \\ \\ \frac{1}{ { \cos}^{2} \alpha } = 1 + { \tan}^{2} \alpha \\ \\ LHS = \frac{1}{ { \cos}^{2} \alpha } \\ \\ = { \sec}^{2} \alpha \\ \\ = 1 + { \tan}^{2} \alpha \\ \\ = RHS[/tex]
For the following function, state which variable is being transformed. (Will pick brainliest for right answer)
Answer:
dependant brainliest pls
Step-by-step explanation:
Solve the system of equations by using the substitution method.
2x - 3y = 11
y=x-4
Helppppppppppppppppppppp
Answer:
9^20
Step-by-step explanation:
When the exponents are multiply by an exponent, you multiply the exponent in this case the exponents are 4 and 5 so 4(5)=20.
I Will give brainliest to who can awnser and 10$ paypal if us speedy
Answer:
what question?
Step-by-step explanation:
Answer:
what's the question
Step-by-step explanation:
The Kent family must pay $2,868 in property tax on their home this year. Their house payment is $755
per month. What is their payment each month with the tax? Assume that the tax is paid in equal
monthly instauments.
Their payment with tax is $ per month
can someone help me please?
Answer:
yesirr let me know!
Step-by-step explanation:
