3
3. Write an expression that is equivalent to
5
(3y + 15). (4 points)
O 3
-y + 9
5
03
-y + 15
5
09
5
Y + 9
09
- y + 15
5
Answers
Answer:
9/5y+15
Step-by-step explanation:
Related Questions
Decide which of the two given prices is the better deal and explain why. You can buy shampoo in a 6-ounce bottle for $2.29 or in a 15-ounce bottle for $.10.19
Answers
Answer:
The 6 oz bottle
Step-by-step explanation:
When you simplify it to see how much per ounce each costs, the 6-oz has the better price.
2.29/6 = 0.381666....
10.19/15 = 0.6793....
the second bottle cost more per ounce, so the 6 oz bottle has the better deal
*plz brainlist
Which has the greater value? The sum of 89 and 45 or the difference between 89 and 45
Answers
Answer:
The sum of 89 and 45
Step-by-step explanation:
Because the sum of 89 and 45 is 134 and the difference of 89 and 45 is 44. And 134 > 44
Please answer this question fast
Answers
ddddddddddddddAnswer:
Step-by-step explanation:
fffffffffff
Given that f(x)= [tex]\frac{x^{2}-3 }{2}[/tex]
A) Find [tex]f^{-1}(x)[/tex]
B) Find [tex]f^{-1} (11)[/tex]
Separate your 2 answers for part B with a comma.
I've solved [tex]f^{-1}(x)[/tex], which was [tex]\sqrt{2x+3}[/tex]
However after this I do not see how I can get another value other than 5.
Answers
Answer:
[tex]x=5,-5[/tex]
Step-by-step explanation:
[tex]\\ y=\frac{x^2-3}{2}\\\\ x=\frac{y^2-3}{2}\\\\ 2x=y^2-3\\\\ y^2=2x+3\\\\ f^{-1}(x)=\pm\sqrt{2x+3}\\\\ f^{-1}(x)=\pm\sqrt{2(11)+3}\\=\pm\sqrt{25}=\pm 5[/tex]
For a certain automobile, M(x)=−.015x^2+1.42x−7.8, 30≤x≤60, represents the miles per gallon obtained at a speed of x miles per hour. (a) Find the absolute maximum miles per gallon and the speed at which it occurs. (b) Find the absolute minimum miles per gallon and the speed at which it occurs.
Answers
9514 1404 393
Answer:
maximum: 25 121/150 mpg at 47 1/3 mphminimum: 21.3 mpg at 30 mphStep-by-step explanation:
A graph can be helpful. It can show the locations of the maximum and minimum.
__
The maximum is found at the vertex of the parabola, located where ...
x = -b/(2a)
x = -1.42/(2(-0.015)) = 47 1/3
The value M(47 1/3) is ...
M(47 1/3) = (-0.015(47 1/3) +1.42)(47 1/3) -7.8 = 0.71(47 1/3) -7.8 = 25 121/150
The maximum gas mileage is 25 121/150 ≈ 25.8067 mpg at 47 1/3 mph.
__
The minimum will be at one end or the other of the interval. Here, the maximum is farther from the lower end of the domain, so we expect to find the minimum there:
M(30) = (-0.015(30) +1.42)(30) -7.8 = 0.97(30) -7.8 = 21.3
The absolute minimum gas mileage is 21.3 mpg at 30 mph.
simplify (3x+2) (y-2) - (7y+3) (y-3)
Answers
Answer:
3 x y − 7 y 2 − 6 x + 20 y + 5
Step-by-step explanation:
In a survey,20% chose green as there favorite color. If 46 people chose green?how many people were surveyed? Pls need help ASAP!!! I will check as brainlist!!
Answers
Answer:
There were 54
Step-by-step explanation:
As you said 46 people were surveyed maybe there's 100 people were surveyed so this is my first answer
It takes 3 minutes to download 123 gigabytes of data on a phone, At that rate how many gigabits could you download in 5 minutes
Answers
Answer:
x=205
Step-by-step explanation:
123/3=x/5 ( this is our proportion.) Solve it: 5*123/3. x=205.
Hope this helps plz mark brainliest :D
The tank of Miriams vehicle holds 12.1 gallons of gas.The current price for gasoline is $2.80 per gallon.How much will Miriam pay to full her tank
Answers
Answer:
$33.88
Step-by-step explanation:
12.1*2.8 is equal to $33.88
State whether the following function is a linear function f(x)=x-4
Answers
In how many ways can a class of nineteen students be divided into 3 sets so that 4 students are in the first set, 6 students are in the second set and nine students are in the third set?
Answers
Answer:
216
Step-by-step explanation:
Solve two fifths minus one seventh equals blank.
solve this and you will get 25 points
Answers
Answer:
9/35
Step-by-step explanation:
Identify the following data set:
The rates at which all of the cashiers scan products for a store on a study about the
cashiers for the day
Answers
Answer: Population
Step-by-step explanation:
Answer:
Population
Step-by-step explanation:
I just took the quiz
A bag of M & M’s has 4 red, 2 green, 3 blue, and 8 yellow M &M’s. What is the probability of randomly picking: a yellow, a blue or green, an orange? Round 4 decimal
Answers
Answer:
probability of picking a yellow =0.4706
a blue or green = 0.2941
an orange = 0 ( there is no orange bag)
I need help in seventh grade math
Answers
Answer:
Below in bold.
Step-by-step explanation:
5. 1/8 and 0.125 = 12.5%
6. 6/100 = 3/50.
and 6/100 = 0.06.
7. 7/9 = 0.777....
and 77.78%.
8. 44/100 = 11/25.
and 0.44*100 = 44%
9. 625/1000 = 625/125 / 1000 / 125 = 5/8.
and 0.625.
10. 13/25 = 13*4/25/4 = 52/100 = 0.52
and 0.52 * 100 = 52%.
GIVING 25 POINTS
Last week, a movie theater sold a daily average of 163.75 drinks and a daily average of 65.5 boxes of popcorn. Which rate best represents the relationship between the number of drinks sold and the number of boxes of popcorn sold?
A. 2.5 drinks per box of popcorn
B. 0.4 drinks per box of popcorn
C. 2.5 boxes of popcorn per drink
D. 65.5 boxes of popcorn per drink
(please help, i'm doing a test rn!)
Answers
Answer:
A.
Step-by-step explanation:
Find 2 consecutive positive odd integers such that 4 times the larger is 29 more
than three times the smaller?
Answers
Answer:
21 and 23Step-by-step explanation:
Two integers are:
x and x + 2The equation and solution:
4(x + 2) = 3x + 294x + 8 = 3x + 294x - 3x = 29 - 8x = 21And
x + 2 = 23EMILY COOKIE RECIPE CALLS FOR 3 CUPS OF FLOUR AND 1 CUP OF SUGAR WHAT IS THE RATIO OF FLOUR TO SUGAR
Answers
(4x^2-2x-4)(2x+4) what is
the product of the polynomials below?
Answers
Answer:
8x³ + 12x² - 16x - 16
General Formulas and Concepts:
Order of Operations: BPEMDASDistributive PropertyStep-by-step explanation:
Step 1: Define expression
(4x² - 2x - 4)(2x + 4)
Step 2: Simplify
Expand: 8x³ - 4x² - 8x + 16x² - 8x - 16Combine like terms (x²): 8x³ + 12x² - 8x - 8x - 16Combine like terms (x): 8x³ + 12x² - 16x - 16In the equation
2
3
x
=
10
, what is the value of x?
Answers
Answer:
23/10 or 15
Step-by-step explanation:
Are the expressions below equivalent? How do you know?
8x÷16
4(2x+4)
Answers
A rectangle has a perimeter of 32 in. Find the length and width of the rectangle under which the area is the largest.
a. Let the width to be x and the length to be y , then the quantity to be maximized is (expressed as a function of both x and y) A=_____
b. The condition that x and y must satisfy is y=______
Answers
Answer:
Length of the rectangle is 8 in and the breadth is 8 in.
a. [tex]A=xy[/tex]
b. [tex]y=16-x[/tex]
Step-by-step explanation:
Length = x
Breadth = y
Area is given by [tex]A=xy[/tex]
Perimeter of rectangle is given by
[tex]2(x+y)=32\\\Rightarrow x+y=16\\\Rightarrow y=16-x[/tex]
The condition that x and must satisfy is [tex]y=16-x[/tex]
So, area is
[tex]A(x)=x(16-x)\\\Rightarrow A(x)=16x-x^2[/tex]
Differentiating with respect to x we get
[tex]A'(x)=16-2x[/tex]
Equating with zero
[tex]0=16-2x\\\Rightarrow x=\dfrac{16}{2}\\\Rightarrow x=8[/tex]
Double derivative of A(x)
[tex]A''(x)=-2[/tex]
So [tex]A''(x)<0[/tex] which means [tex]A(x)[/tex] is maximum at [tex]x = 8[/tex]
[tex]y=16-x=16-8\\\Rightarrow y=8[/tex]
So length of the rectangle is 8 in and the breadth is 8 in.
Rewrite the equation below so that it does not have fractions.
4+3/4x=5/6
do not write any decimal
Answers
Answer:
x=-18/76
Step-by-step explanation:
4×4x/4x+3/4x=5/6
or,96x+18=20x
or,76x=-18
:x=-18/76 ans...
Graphs which present the values on the horizontal axis and the number of times this occurs on the vertical axis are known as what?
Answers
Answer:
The horizontal axis represents TIME
Step-by-step explanation:
In a time-series plot, the horizontal axis represents time, and the vertical axis represents the value of the variable we are measuring. -The values of the variable are plotted at each of the times, then the points are connected with straight lines.
which of these statements is true for 89.033
Answers
The Miller's are comparing babysitting services for their two children.
The Babysitter's Block charges a rate of $15 an hour per child plus an initial fee of $25 per household.
Super Sitters charges a flat rate of $20 an hour per child.
For ________hours of service, both babysitting services would cost the same.
Answers
Answer:
After 5 hours of service, both babysitting services would cost the same.
Step-by-step explanation:
Babysitter's Block: y = 15x + 25
Super Sitters: y = 20x
15x + 25 = 20x
Subtract 15x from both sides;
25 = 5x
Divide both sides by 5;
x = 5
For 5 hours of service, both babysitting services would cost the same.
Lamar wants to attend college that will cost $16,400 for the first year. His uncle gave him a special gift of $2000 to use toward the cost. Lamar plans to attend college in 6 years. How much must Lamar save each month to have enough for the first-year cost?
Answers
Answer:
200
Step-by-step explanation:
16,400-2,000= 14,400
6 years into months 6x12= 72
14,400/72= 200
John's salary is $1600. Peter 's salary is $400 less than John's salary. Find the ratio Peter's salary to John's salary in the simplest form.
Answers
$300 to $400
Step-by-step explanation:
Find the distance CA. Round to the nearest integer and include units.
Answers
9514 1404 393
Answer:
27 in
Step-by-step explanation:
The relationship between angle A, adjacent side AC, and hypotenuse AB is ...
Cos = Adjacent/Hypotenuse
cos(A) = AC/AB
Multiplying by AB, we get ...
AC = AB·cos(A)
AC = (30 in)cos(25°)
AC ≈ 27 in
8.162 be when round to hundred place
Answers
Explanation: the 2 is less than five so it stays the same
I don't know if you mean rounding to the HUNDRED place or the HUNDREDTHS place, but I will give you both answers.
8.162 rounded to the hundreds place - 0
8.162 rounded to the HUNDREDTHS place- 8.16
