Answer:
y would be 6
Step-by-step explanation:
Because 5 x 3 would be 15
then you would do 2 x 3 would be 6
Answer:
y=2/3
Step-by-step explanation:
first make the equation to interpret the question
x=k/y
find the value of k, which is a constant
when x=5 and y=2
5=k/2
k=10.
hence, find y when x=15
x=k/y
x=10/y
15=10/y
cross multiply
15y=10
divide both sides by 15
y=10/15
y=2/3
A kid’s bicycle costs $110.00 at a department store, who is offering a 15% off coupon. Determine the final price of the bike after both the discount and 6.25% sales tax.
Answer:
100.375Step-by-step explanation:
so 110
110/100=1.1
*15
16.5
16.5 dollar coupon
ok then sales tax
1.1*6.25
6.875
sales tax is 6.875
110-16.5
93.5
93.5+sales tax 6.875
100.375
final price 100.375
hope this helps!!
If 45% of a number , e is 180 , what is 95% of e
Answer:
380
Step-by-step explanation:
Find 1% of e:
180 / 45 = 4
Find 95% of e:
4 * 95 = 380
Given that f(x) = x^2 - 11x + 18 and g(x) = x-9, find f(x) + g(x)
Answer:
f(x) + g(x) = x² - 10x + 9
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
f(x) = x² - 11x + 18
g(x) = x - 9
Step 2: Find f(x) + g(x)
Substitute: f(x) + g(x) = x² - 11x + 18 + x - 9Combine like terms (x): f(x) + g(x) = x² - 10x + 9On Monday, Sean bought 3 cookies and 5 cakes and spent $78.75. On Tuesday, Sean bought 8 cookies and 2 cakes and spent $40.
Find the price for one cookie and one cake.
Answer:
1 cookie = $1.25 1 cake = $15
Step-by-step explanation:
set up a system of equations:
let x = 1 cookie
let y = 1 cake
3x + 5y = 78.75
8x + 2y = 40
I multiplied the first equation by 2 to get: 6x + 10y = 157.50
I multiplied the second equation by -5 to get: -40x - 10y = -200.00
If you add both equations, the y-terms will be eliminated
-34x = -42.50
x = 1.25
Plug in 1.25 into equation to find value of y: 8(1.25) + 2y = 40
10 + 2y = 40
2y = 30
y = 15
number b subtracted from 98 is greater than -4
Answer:
B<102
Step-by-step explanation:
Lets write this as an equation: 98-b >-4
Lets simplify: -b>-102
Lets find out for b: b<102
BTW we switched signs because we are dividing by a negative.
Terrance and his family went out for dinner for his birthday. The cost of the meal before sales tax was $43. The family decides to tip 25% for the excellent service they received.
How much did Terrance's family leave as a tip for his birthday meal?
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Answer:
$10.75
Step-by-step explanation:
The amount they left as a tip is ...
25% × $43 = 0.25 × $43 = $10.75 . . . tip amount
If I buy 5 plants from the garden centre at £3.00 a plant how much do the plants cost? If I have a £20 note how much change will I get?
Answer:
They will cost you £5.00 total
Step-by-step explanation:
If the plants each cost £3.00
You multiply the amount of plants, in this case is 5 by the price :-
5×3.00
= £15.00
You then subtract the total from the cash
15.00 - 20.00
= £5.00
You are draining your fish
aquarium. After 2 min. there are
6 gallons of water in the
aquarium. After 10 min the
aquarium is empty. Type an
equations that represents the
volume y of water in the
aquarium after x minutes.
uarium
Answer:
y=-3/4x+15/2
Step-by-step explanation:
describe the transformation g(x) = 2(х-4)^2 +2
Answer:
Step-by-step explanation:
To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.
horizontal shift- right four units
vertical shift- up 2 units
Reflection about the x-axis: None
Reflection about the y-axis: None
Vertical Compression or Stretch: Stretched
Kiera has $60 to spend online and plans to buy 8 pop songs and some e-books. The songs cost $1.29 each and
the books cost $9.95 each. Which inequality can be used to find the number of e-books, and what is the
greatest number of e-books, x, she can buy?
Answer:
she can buy 4 e books.
I don't know about the equation but there is the work below if that helps.
Step-by-step explanation:
8x 1.29= 10.32
60-10.32=49.68
49.68/ 9.95= 4.99
she can buy 4 books.
Answer:
um i have this question so i dont know
Step-by-step explanation:
Calculations that allow a researcher to draw conclusions about how meaningful a result is are collectively called _______________statistics
Answer: Inferential
Step-by-step explanation:
Inferential statistics, has to do with taking data from the samples that the researcher has and then making generalizations about the population through the sample gotten.
Through Inferential statistics, one can draw conclusion about a particular phenomenon. Therefore, the answer to the above question is Inferential statistics
.
ON THE WAY TO THEIR NEW HOME, RANDY'S FAMILY DROVE 425 KM IN 5 HRS, WHAT WAS THEIR AVERAGE SPEED PER HR?? PLEASE HELP! ( THIS IS URGENT) PLEASE HELP!
Answer:
85km/h (km per hour)
Step-by-step explanation:
425/5
85km/h
Angelica has 15 comic books, and each
month she buys 3 more comic books.
Write an equation representing the
number of comic books c she has at the
end of any month m?
Answer:
15 + 3m = c i think is suitable
helppppppppp i will give points
The polynomial x3 + 64 is an example of a
Answer:
cubic polynomial.
Step-by-step explanation:
Quadratic Equation
The sum of the ages of two friends is 13 years and the product
of their ages is 42. Find their ages.
Step-by-step explanation:
The sum of ages of two friends is 13 years.
The product of their ages is 42.
Let the age of 1st friend and 2nd friend is x, y respectively.
1 st condition= The sum of ages of two friends is 13 yrs.
i.e x+y = 13........ (I)
2nd condition= The product of their ages is 42.
i.e X*y = 42........(ii)
From equation (I)
X+y = 13
or, X = 13-y........ (iii)
Putting the equation (iii) in equation (ii).
X*y= 42
(13-y) * y = 42
13y - y^2 = 42
[tex] {y}^{2} - 13y + 42 = 0[/tex]
[tex] {y}^{2} - (7 + 6)y + 42= 0[/tex]
[tex] {y}^{2} - 7y - 6y + 42 = 0[/tex]
[tex]y(y - 7) - 6(y - 7) = 0[/tex]
[tex](y - 6) (y - 7) = 0[/tex]
Either; y-6 = 0
y = 6
Or;
y-7=0
y = 7
Keeping the value of y as "7" in equation (ii)
x*y = 42
7x = 42
X = 42/7
Therefore, the value of X is 6.
Therefore, either 1st friend is 6 years and 2nd is 7 years.
Hope it helps...
the ratio of the length and breadth of a rectangle is 5 is to 4and it's area is 180cm square find its length and breadth
Answer:
15cm and 12cm
Step-by-step explanation:
From the question,The ratio of the length and breadth of a rectangle is 5 to 4
We assume The Lenght of the field= 5x
The breadth = 4x
Area= (5x × 4x)= 180
20x^2= 180
X^2=
X= √9
X=3cm
The Lenght of the field= 5×3= 15cm
The breadth = 4×3=12cm
PLEASE HELP ME WITH THIS
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Answer:
$0.50/lb
Step-by-step explanation:
The increase in cost is $40-25 = $15 for an increase in weight of 50-20 = 30 lb. That makes the cost per pound be ...
cost/pounds = $15/(30 lb) = $0.50/lb
Write an equation of the line in slope-intercept form given the graph below.
(2.1)
(0, 2)
Answer:
y = -0.5x + 2
Step-by-step explanation:
m=(y2−y1)/(x2−x1)
m=(1-2)/(2-0)
m (slope) = -1/2 or -0.5
y = mx + b (we need b now, y-int)
1 = -0.5(2) + b
b - 1 = 1
b = 2
Now we have the slope (m) and the y-intercept (b), we can rewrite it as such:
y = -0.5x + 2
Hope this helped!
*Remember the equation of a line in slope-intercept form is y=mx+b. In this problem, we found the slope and y-intercept.
GameStop paid $300 for a PS5. to make profit they sell it for 65% more than what they paid. how much will GameStop sell a PS5 for
Answer:
$495
Step-by-step explanation:
65% of $300= 195
300+195=$495
The table below shows all of the possible outcomes for rolling two six-sided number cubes.
A table with 36 possible outcomes.
How many possible outcomes are there?
Answer: 6
Step-by-step explanation:
3. As a fundraiser the school has a pie eating contest. Matt eats 2.75 pies in 300 seconds. b. Use place value, multiplication with powers of 10, or equivalent fractions to explain what is happening mathematically to the decimal points in the divisor and dividend before dividing.
Answer:
Using equivalent fractions, the time Matt takes to eat 1 pie is 1200/11 which is the same as [tex]109\frac{1}{11}[/tex] seconds
Step-by-step explanation:
The number of pies Matt eats = 2.75 pies
The time duration Matt eats 2.75 pies = 300 seconds
Mathematically, the time duration for Matt to eat one pie is given as follows;
The time to eat 2.75 pies = 300 seconds
Dividing both sides of the equation by 2.75 gives;
The time to eat 2.75/2.75 pie = 300/2.75 seconds
2.75/2.75 = 1, therefore, we have;
The time to eat 1 pie = 300/2.75 seconds
The equivalent fraction of 3000/2.75 = 1200/11
Therefore;
The time Matt takes to eat 1 pie = 1200/11 seconds
A square has a perimeter of 36 ft. What is the length of each side?
Pretest: Unit 3
Question 16 of 20
For R(x) = 4x + 2 and g(x) = x2 - 6, find (f+g)(x).
A. 4x3 - 4
B. x2 + 4x - 4
O c. 4x2 - 16
O D. x2 + 4x+8
BMI
Answer:
(f + g)(x) = x² + 4x - 4 ⇒ B
Step-by-step explanation:
Let us solve the question
∵ f(x) = 4x + 4
∵ g(x) = x² - 6
→ We need to find (f + g)(x) which means f(x) + g(x)
∴ (f + g)(x) = f(x) + g(x)
∵ f(x) + g(x) = (4x + 2) + (x² - 6)
∴ f(x) + g(x) = 4x + 2 + x² - 6
→ Add the like terms
∵ f(x) + g(x) = 4x + x² + (2 - 6)
∴ f(x) + g(x) = 4x + x² + (-4)
→ Remember (+)(-) = (-)
∴ f(x) + g(x) = 4x + x² - 4
→ Arrange the terms from greatest power of x
∴ f(x) + g(x) = x² + 4x - 4
∴ (f + g)(x) = x² + 4x - 4
please help me i’ll give brainliest
Answer:
A
Step-by-step explanation:
Two cars start from the same place at the same time. One car travels west at 70 miles per hour and another travels cast at 20 miles per hour. In how many hours will they be 250 miles apart?
A. 50/9 hours
B. 225 hours
C. 25/9 hours
D. 5 hours
Answer
25/9
Step-by-step explanation:
70 + 20 =90
25/9 x 90 = 250
I need help with this please
Answer:
b
Step-by-step explanation:
there's a property for Alternate Interior Angles
Answer:
Choice B
Step-by-step explanation:
The reason why < 3 is equal to < 6 is because they are alternate interior angles.
The first choice are supplementary angles they add up to 180 so they can't be equal.
The third one is false because we don't actually know the measurements of the angles but they both need to be 45° to add up to 90 since they are equal to each other.
The last one is also incorrect because they are vertical angles just like the third choice and they aren't on a line so they can't add up to 180.
Solve the system of equations by the substation method. Y=4x+5 y=7x+6. Select the correct choice below and if necessary, fill in the answer box to complete your choice
What is the value of the expression 2 x 7 + 9 − 3 ÷ 3?
a 24
b 22
c 32
d 36
Answer:
22?
Step-by-step explanation:
just follow PEMDAS. first multiply then divide then add then subtract
Please help! It’s late! (One question)