Answers
Answer:
B
Step-by-step explanation:
You can just move upper y equation and it will be:
6x+3(3x-5)=15
6x+9x-15=15
15x-15=15
15x=30
x=2
Answer:
Try the website, MATH
WAY
type in your equations
Related Questions
what is 20:10 in its simplest
form
Answers
Answer:
2/1
Step-by-step explanation:
20/10 devided by 10 to both numbers
Mona needs to photocopy a 14.5 centimeters wide by 15 centimeters long picture. She wants to enlarge the picture so that its length will be
37.5 centimeters. How wide will the enlarged picture be?
O a
38.8 cm
Ob
37 cm
ос
93.75 cm
Od
36.25 cm
Answers
Answer:
The enlarged picture will have a width of 35.8 cm
Step-by-step explanation:
We can solve this question by proportions, using rule of three.
When the length is of 15 centimeters, the width will be of 14.5 centimeters. What is the width when the length is 37 centimeters?
15 cm - 14.5 cm
37 cm - x
Applying cross multiplication
[tex]15x = 14.5*37[/tex]
[tex]x = \frac{14.5*37}{15}[/tex]
[tex]x = 35.8[/tex]
The enlarged picture will have a width of 35.8 cm
Answer:
36.25 cm
Step-by-step explanation:
37.5 divided by 15 is 2.5 then multiply 14.5 by 2.5 and your answer will be 36.25 cm.
I hope this helps the last answer you got was close but incorrect. I really hope I get brainlyiest. :)
There are 9 people in an office with 5 different phone lines. If all the lines begin to ring at once, how many groups of 5 people can answer these lines?
Answers
Answer:
1
Step-by-step explanation:
if it was 10 it would be 2, but it isnt. and it cant be a number with a decimal cause i would be surprised if a math problem has it where you cut people in half or portions
2(x + 5) = 3x + 1
Solve the equation
Please hurry
Answers
Answer:
So the answer is 9
Step-by-step explanation
1 . The explanation is that you have to distrubte the parentheses 2.subtract 10 from both sides 3.simplify what you got after you 4.subtract 3 from both sides 5.simplify again 6.divide both sides of the equation by the same terms 7.simplify again and you get 9
Find the values of the trigonometric functions of from the information given.
tan() = −5, sin() > 0
sin =
cos() =
csc() =
sec() =
cot() =
Answers
Why are you cheating... I will report this to your teacher
solve for f(-1), f(x)=-3+3, f(-1)=?
Answers
Answer:
0
Step-by-step explanation:
Brainiest for the right answers...
Answers
Answer:
9. B 10. C 11. B 12. B
Step-by-step explanation:
After spending many hours studying for your math class, you decide to reward yourself with a case of cream soda. Unfortunately, Corner Market only had a warm case left. You buy several bags of ice and decide to chill it at home. When you get home, the temperature of the soda is 76° F, and you proceed to pack it in ice. After 10 minutes, the temperature cooled to 70° F. If cream soda is best served at 60° F or cooler, how much longer must you wait to enjoy your chilled cream soda?
Answers
Answer:About sixteen minutes.
Step-by-step explanation: After you find out that Ten minutes is six degrees you divide ten by six and get 1.666. Then you multiply that by the time remaining and get 16 minutes rounded. or seventeen if you are specific.
[tex]30 \frac{1}{6}[/tex]≈
Answers
The answer is: 181/6 or 30.16667
The total budget for a school fundraiser is $350. Supplies and refreshments cost $140. The band for the event charges $70 each hour. What is the number of hours the school can have the band play?
Which equation represents the situation?
Answers
Answer:
I think its 3 hours
Step-by-step
also I think its the last one
13. Given f(x) = X – 3 and g(x) = 4x, find f(g(x)).
A. 4x - 3
B. 4x - 12
C. 5x - 3
D. 3x - 3
Answers
Step-by-step explanation:
f(g(x))
= f(4x)
= (4x) - 3. (A)
Step-by-step explanation:
option A is the correct answer according to my opinion .
plz mark my answer as brainlist if you find it useful.
5/6x+2/3x+4=7
What is x and I REALLY REALLY NEED AN EXPLANATION
Answers
5/6x + 2/3x = 9/6x
9/6x + 4 = 7
9/6x + 4 - 4 = 7 - 4
9/6x = 3
9/6 in decimal form is 1.5 thus
1.5x / 1.5 = 3/1.5
x = 2
Sonia saves
3
11 of her monthly income for retirement. If Sonia earned $2200 last month, how much did she save for retirement?
Answers
Answer:
Sonia saved 1889 from her last month's pay
Step-by-step explanation:
Due to your severe pain, the doctor tells the nurse to give you 825 mg of pain medicine every 6 hours. You also hear the nurse say that the medication comes in 250-mg tablets. How many tablets should she give you every 6 hours? (Round to tenths, if necessary.)
Answers
Answer:
3
Step-by-step explanation:
divided 825 by 250 which give you 3.3
The math is 825 divided by 250 is 3.3.
Do anyone knows how to do this?
X= -2
Answers
Answer:
nustiu scz
Step-by-step explanation:
sorry its too difficult
5x+(6x divided by -9)
Who ever answer’s this i will mark brainliest
Answers
Answer:
(13/3)x
Step-by-step explanation:
6x/-9 is eqivalent to (2/-3)x. 5x is equivalent to (15/3)x. Combine the like terms and you get (13/3)x.
7)
2 1
Please help giving Brainly
Answers
Answer:
You should use MathPapa.
Step-by-step explanation:
Three sisters are saving for a special trip . The ratio of Nora's savings to Helga's savings is 8:3 and the ratio of Helga's savings to Maurice's savings is 3:4. Together all 3 have saved $60. How much has each saved?
Answers
Answer:
X = 10.588
Y = 28.2
Z = 21.176
Step-by-step explanation:
Consider Nova savings as X
Helga is Y
Maurice is Z
As per first ratio we conclude 8X=3Y
Second ratio we conclude 3Y = 4Z
We deduce 8X = 4Z
Last sentence => X+Y+Z=60 multiple it by 3
=> 3X + 3Y + 3Z= 180 but 8X = 4Y
=> 3X + 8X + 3Z =180 => 11X + 3Z=180 multiple the equation by 4/3
44/3 X + 4Z = 240 but 4Z = 8X
=> 44/3 X + 8 X = 240
=> 68/3 X = 240
=> 68X = 720
=> X =10.588
And Y=8/3 X =28.2
And Z=3/4 Y = 21.176
3. How many kilograms are equal to
5,000 grams?
A 500 kilograms
B 50 kilograms
C 5 kilograms
D 0.5 kilogram
Answers
Answer:
C.) 5 kilograms
Step-by-step explanation:
1000 grams = 1 kilogram
To convert grams to kilograms we divide by 1000
5000g divided by 1000 kg = 5kg
May I Please Have Brainliest I'm trying to achieve a new rank
5,000 grams is equal to 5,000/1000 = 5 kilograms. The correct option is C
What is kilograms ?A unit of measurement used to describe mass or weight is the kilogram (kg). It is widely used all over the world to measure an object's weight because it is the International System of Units' (SI) fundamental unit of mass.
To convert grams to kilograms, you divide the number of grams by 1000 since there are 1000 grams in one kilogram.
So, 5,000 grams is equal to 5,000/1000 = 5 kilograms.
Therefore, the correct option is C. 5 kilograms.
Learn more about kilograms here : brainly.com/question/29255021
#SPJ6
Using the compound interest formula, the "n" is what value when compounded annually?
Answers
Answer:
n=1
Step-by-step explanation:
N is the number of times per year
Annually would be one time per year so n =1
Answer:
If interest is compounded yearly, then n = 1; if semi-annually, then n = 2; quarterly, then n = 4; monthly, then n = 12; weekly, then n = 52; daily, then n = 365; and so forth, regardless of the number of years involved. Also, "t" must be expressed in years, because interest rates are expressed that way.
Step-by-step explanation:
It's a snip-it from the web, but it worked for me.
Does a hexagon contain rays
Answers
Answer:
no
Step-by-step explanation:
A bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean of 200 and a standard deviation of 50. if an applicant is randomly selected, find the probability of a rating that is between 200 and 275.
Answers
Answer:
0.4332 = 43.32% probability of a rating that is between 200 and 275.
Step-by-step explanation:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
A bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean of 200 and a standard deviation of 50
This means that [tex]\mu = 200, \sigma = 50[/tex].
Find the probability of a rating that is between 200 and 275.
This is the pvalue of Z when X = 275 subtracted by the pvalue of Z when X = 200. So
X = 275
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{275 - 200}{50}[/tex]
[tex]Z = 1.5[/tex]
[tex]Z = 1.5[/tex] has a pvalue of 0.9332
X = 200
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{200 - 200}{50}[/tex]
[tex]Z = 0[/tex]
[tex]Z = 0[/tex] has a pvalue of 0.5
0.9332 - 0.5 = 0.4332
0.4332 = 43.32% probability of a rating that is between 200 and 275.
The area of a bathroom floor measures 6 feet by 9 feet and each custom tile that makes up the flooring is 1 1/2 square feet. How many tiles are needed to cover the floor?
pls help me
Answers
Answer:
Around 9.8 tiles
Step-by-step explanation:
The formula is x = (6*9)/5.5.
A number x increased by 6, and then sum is doubled
Answers
Hope this helps
Have a great day/night
Feel free to ask any questions
Im not sure how to do this math question y=2x graphing
Answers
Start at one at the bottom and times by two so 2. Do this for all the numbers on the x axis
Answers
(1,2). (2,4) (3,6) (4,8) (5,10)
Then connect these coordinates
How many digits are there in the Hindu-Arabic form of 44,350•1019?
Answers
Answer:
25 digits
Step-by-step explanation:
add 5 digits in the 44,350 then add 20 digits from the 10^19 = 25 digits
One year ago, Lindsey deposited $250 into a savings
account. Her balance
deposited $250 into
now $253, Two years ago, Jenn
savings account Her balance is
now $257.50. Which account has the greater simple
interest rate? Explain,
Answers
Answer:
Jenns account has the greater simple interest rate.
Step-by-step explanation:
The formula for simple interest is:
A = P * ( 1 + r * t )
Where A is the final amount after investment, P is the initial amount, r is the rate of interest and t is the time periods.
For Lindsey:
253 = 250 * ( 1 + r * t )
Solve for r
r = ( 253/250 ) - 1 = 0.012
Lindsey simple interest was 1.2% annually
For Jenn:
257.50 = 250 * ( 1 + r * 2 )
r = ( 257.50/250 ) - 1 )/2 = 0.015
Jenn simple interest was 1.5% annually
Therefore Jenns account has the highest simple interest rate.
Answer:
Lindsay’s interest is $3 for one year. Using the formula for interest, I = prt, Lindsey’s money is earning at a rate of 1.2%. Jenn has earned $3.75 for one year. Her money is earning at a rate of 1.5%, which is a higher interest rate.
Step-by-step explanation:
Sample response :)
A polygon has the following coordinates: A(6,-7), B(1,-7), C(1,-4), D(3,-2), E(7,-2), F(7,-4). Find the length of BC
Answers
Answer: B= 2,4
C=8,1
Step-by-step explanation:
Answer:
I believe its 5 units!
Step-by-step explanation:
the position of a weight suspended from a spring is defined by the following function s(t)=cos(2t). find the velocity at pi/12
Answers
V(t) = -2sin(2t)
t= pi/2
V = 0
Find the output, g, when the input, r, is 4.
g=25−3r
plzzzzzz help me i need to finish
Answers
Answer: g = 13 / Thats the output
Step-by-step explanation:
g = 25 - 3r
Its telling you the r is 4 since its the input.
g = 25 - 3 ( 4 ) see!! just plug in the number
Now Solve
g = 25 - 12
g = 13
Answer:
g = 13
Step-by-step explanation:
since r = 4, you make the equation :
g=25-3(4)
first you multiply 3 and 4 and you get 12
g=25-12
and 25 - 12 is 13 which equals :
g = 13