Answer:
23.75y+25
Step-by-step explanation:
multiply everything turn the fraction into a decimal add them together add the 5y at the end
Solve the following equations:
A) 3x = 15
B) y + 7 = 13
Answer:
x=5
y=6
Step-by-step explanation:
a) 3x=15
/3
x=5
b) y+7=13
-7
y=6
You are paid $82.50 for 712 1/2 hours of work. What is your rate of pay?
Answer:
11.6 cents per hour.
Step-by-step explanation:
To find the rate per hour we divide the money paid by the number of hours: $82.50/712 = $0.116 per hour or 11.6 cents per hour.
Answer: 11.6 cents per hour.
Step-by-step explanation:
The cost of 3 boxes of envelopes and 4 boxes of notebook paper is $13.25. Two boxes of envelopes and 6 boxes
of notebook paper cost $17. Find the cost of each. 8.
(Need step by step please!)
Answer:
Step-by-step explanation:
E for Envelopes
N for Notebook Paper
3E + 4N = $13.25
2E + 6N = $17
N = $2.45
E = $1.15
Which value of y makes the inequality 3y^2+2(y-5)>8 true
A y=0
B y= -1
C y= -2
D y= -3
Answer:
Conclusion:
As y = -3 MAKES the inequality TRUE.
Therefore, option D i.e. y = -3 is true.
Step-by-step explanation:
Given the inequality
3y² + 2(y - 5) > 8
For y = 0
substitute y = 0 in the inequality
3y² + 2(y - 5) > 8
3(0)² + 2(0 - 5) > 8
3(0) + 2(-5) > 8
0 - 10 > 8
-10 > 8
FALSE!
-10 can not be greater than 8.
Hence, y = 0 does not make the inequality true.
For y = -1
substitute y = -1 in the inequality
3y² + 2(y - 5) > 8
3(-1)² + 2(-1 - 5) > 8
3(1) + 2(-6) > 8
3 - 12 > 8
-9 > 8
FALSE!
-9 can not be greater than 8.
Hence, y = 1 does not make the inequality true.
For y = -2
substitute y = -2 in the inequality
3y² + 2(y - 5) > 8
3(-2)² + 2(-2 - 5) > 8
3(4) + 2(-7) > 8
12 - 14 > 8
-2 > 8
FALSE!
-2 can not be greater than 8.
Hence, y = -2 does not make the inequality true.
For y = -3
substitute y = -3 in the inequality
3y² + 2(y - 5) > 8
3(-3)² + 2(-3 - 5) > 8
3(9) + 2(-8) > 8
27 - 16 > 8
11 > 8
TRUE!
11 is indeed greater than 8.
Hence, y = -3 MAKES the inequality TRUE.
Conclusion:
As y = -3 MAKES the inequality TRUE.
Therefore, option D i.e. y = -3 is true.
Answer:
D
Step-by-step explanation:
Select all the correct tables.
This table gives information on types of rooms occupied at a hotel in a day.
King Bed Queen Bed
Mountain View 25 18
Ocean View 12 20
Identify the tables that represent the relative frequencies of this data by rows or by columns. Round your answers to the nearest hundredth.
Answer:
the middle left and right
The table representing the relative frequencies by rows would be:
King Bed Queen Bed
Mountain 0.58 0.42
Ocean 0.38 0.62
The table representing the relative frequencies by columns would be:
King Bed Queen Bed
Mountain 0.68 0.47
Ocean 0.32 0.53
What is a relative frequency?Relative frequency is a statistical term that describes the proportion or percentage of times that an event or value occurs within a dataset or sample.
It is calculated by dividing the number of times the event occurs by the total number of observations in the dataset or sample.
We have,
To find the relative frequencies of this data by rows or by columns, we need to divide each count by the total number of rooms occupied. The total number of rooms occupied is:
25 + 18 + 12 + 20 = 75
To find the relative frequencies by rows, we divide each count by the total for that row:
For Mountain View rooms:
King Bed: 25/(25+18) ≈ 0.58
Queen Bed: 18/(25+18) ≈ 0.42
For Ocean View rooms:
King Bed: 12/(12+20) ≈ 0.38
Queen Bed: 20/(12+20) ≈ 0.62
The table representing the relative frequencies by rows would be:
King Bed Queen Bed
Mountain 0.58 0.42
Ocean 0.38 0.62
To find the relative frequencies by columns, we divide each count by the total for that column:
For King Bedrooms:
Mountain View: 25/(25+12) ≈ 0.68
Ocean View: 12/(12+20) ≈ 0.38
For Queen Bedrooms:
Mountain View: 18/(18+20) ≈ 0.47
Ocean View: 20/(18+20) ≈ 0.53
The table representing the relative frequencies by columns would be:
King Bed Queen Bed
Mountain 0.68 0.47
Ocean 0.32 0.53
Note that we round the relative frequencies to the nearest hundredth.
Thus,
The table representing the relative frequencies by rows and columns is given above.
Learn mroe about relative frequency here:
https://brainly.com/question/29739263
#SPJ3
can you help me plz
Tim and Kevin each sold candies and peanuts for a school fund-raiser. Tim sold 16 boxes of candies and 4 boxes of peanuts and earned $132. Kevin sold 6 boxes of peanuts and 20 boxes of candies and earned $190. Find the cost of each.
Answer:
Tim's Cost of the box of candy: 7$ for one box
Tim's Cost for the peanuts: $5 for one box
Kevin's Cost for the candy is: $8 for one box
Kevin's Cost for the peanuts are: $5 for one box
Step-by-step explanation:
Tim:
7x16=112
5x4=20
112+20=132
Kevin:
20x8= 160
5x 6=30
160+30 =190
What is the value of f(-1/4)?
Answer:
i think its -0.25
Step-by-step explanation:
i dont really ave an explanation a just used a calculator
What is the value of X?
Answer:
x=12°
Step-by-step explanation:
180 - 90 = 4x - 2° + 3x + 8 °
90°= 7x + 6
90° - 6 = 7x
7x = 84
x= 84/7
x = 12
What is the value of (x)?
Answer:
X=6 I hope this helps have a great day!
just divided 24 by 4!
Answer:
x =6
Step-by-step explanation:
You want to solve for the variable, so you have to isolate it on to one side of the equation. You can do this by doing reverse operations. For example, the reverse operation of addition is subtraction. This is reversible as well.
4x = 24
Because 4x is the same thing 4 (x), the reverse operation would be division:
4x = 24
---- ---
4 4
x = 6
Please help me graph
Y=1.5x
Will mark brainliest!!
An account is gaining value rate of 4.94 per year. The account held $113 in 2005 which statement is "false"
A. The account had 124.44 in 2007.
B. The account gained more money from 2013-2015 than it did 2005-2007.
C. The account gains $5.72 every year.
D. This relationship is an example of exponential growth.
Answer:
d
Step-by-step explanation:
The false statement is option (d) This relationship is an example of exponential growth.
What is Slope?Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.
The graph shows the value in the account after 2005.
0 indicates the year 2005.
1, 2, ...... indicates 2006, 2007, etc.
A) The value in 2007 corresponds to value of 2, which is 124.44.
True statement.
B) From 2013-2015 means that x values from 8 to 10.
Value of money during 2013-2015 = 180 - 166.19 = 13.81
From 2005-2007 means that x values from 0 to 2.
Value of money during 2005-2007 = 124.44 - 113 = 11.44
So Value of money during 2013-2015 is greater than that of 2005-2007.
True statement.
C) To find the amount account gained per year, find slope.
Slope = Change in y coordinates / Change in x coordinates
Take two points on the line (0, 113) and (2, 124.44)
Slope = (124.44 - 113) / (2 - 0) = 5.72
Hence the account gains $5.72 every year.
True statement.
D) Clearly the function is linear since the graph is a straight line.
Hence this is not a exponential growth.
Hence D is the false statement.
To learn more about Slope, click :
https://brainly.com/question/19131126
#SPJ2
What number is 56% of 400? Show ALL of your work.
Answer: 224
Step-by-step explanation:
56% is the same as saying (56/100). When finding a percent of a number, you’re really setting up a ratio with the value x:
(56/100)=(x/400)
Then you just cross multiply:
(56 x 400)/100=x
x=224
y = 2(x – 3)2 - 4
Convert to standard form
Answer:
4x - y = 16
Step-by-step explanation:
y = 2(x – 3)2 - 4
When written in standard form, this will be the answer --->
4x - y = 16
Answer:
y = 2x² - 12x + 14
Step-by-step explanation:
The equation of a parabola in standard form is
y = ax² + bx + c ( a ≠ 0 )
Given
y = 2(x - 3)² - 4 ← expand (x - 3)² using FOIL
= 2(x² - 6x + 9) - 4 ← distribute parenthesis
= 2x² - 12x + 18 - 4
y = 2x² - 12x + 14 ← in standard form
Is −5 a solution to the equation 6 + 5 = 5 + 8 +2? PLS HELP
Answer:
it is false
Step-by-step explanation:
Answer:
False
Step-by-step explanation
6+5 ?= 5+8+2
11≠15
False
With this equation it was asking you is 6+5 equal to 5+8+2
and the answer is no, false.
which expression is equivalent to 3 x 3 x 3 x 3
Answer:
I can’t c anything where are the answers we’re choosing ?
Step-by-step explanation:
Answer:
raise 3^4 and ans is 81 or u can simply multiply.
Jayla has 500 stickers in a collection. She wants at least y stickers in her collection at the end of the month. She buys 25 stickers each day. Write an inequality tha
number of days. Enter your answer in the box provided.
Answer:
20
Step-by-step explanation:
500 divided by 25=20
The required inequality is 500 + 25x ≥ y which represents the given situation.
What is inequality?
Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
Let x be the number of days Jayla buys stickers.
The total number of stickers Jayla has at the end of the month is 500 + 25x.
To represent the inequality that Jayla wants at least y stickers in her collection at the end of the month, we can write:
500 + 25x ≥ y
This inequality states that the total number of stickers Jayla has (500 + 25d) is greater than or equal to the number of stickers she wants (y) at the end of the month.
It gives the minimum number of days Jayla should buy stickers to achieve her goal.
Learn more about inequalities here:
brainly.com/question/20383699
#SPJ5
Seven people are going to share an 84-ounce bottle of soda. How many ounces will each person get to drink? Choose the correct equation and answer for this situation. I THINK THIS IS ABOUT RASIOS SO PLS HELP
Answer:
7 ÷ 84 = 84 = 12 ounces
_
7
Step-by-step explanation:
The equation will be 7x = 84. Then the number of ounces will each person get to drink will be 12.
What is the linear system?A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.
Seven people are going to share an 84-ounce bottle of soda.
Let x be the number of the ounces bottle of soda of each person.
Then we have the equation will be
7x = 84
x = 84 / 7
x = 12
Then the number of ounces will each person get to drink will be 12.
More about the linear system link is given below.
https://brainly.com/question/20379472
#SPJ2
Please help meee. Look at te box
Answer:
(-4,0)
Step-by-step explanation:
If y=0 that means substitute the y into the top equation as 0. 0=x+4, subtract 4 on both sides. x=-4. Now we know y is 0 and x is -4 so the coordinate point is (-4,0). Hope this helps!
Salim bought a fruitcake, cut off a piece from it, and ate the piece. The dimensions of the cake before and after he cut it, are shown below. What was the volume of the piece that Salim ate?
Answer:
C. 75 cu cm
75 cm³
Step-by-step explanation:
Volume of the cake when Salim bought it = length × width × height
= 15 cm × 6 cm × 5 cm
= 450 cm³
Volume of the cake after Salim cut a piece = length × width × height
= 12.5 cm × 6 cm × 5 cm
= 375 cm³
volume of the piece that Salim ate = Volume of the cake when Salim bought it - Volume of the cake after Salim cut a piece
= 450 cm³ - 375 cm³
= 75 cm³
volume of the piece that Salim ate = 75 cm³
The distance traveled by a toy car can be modeled by D(t) = t3 − 3t2 + t − 3, where t > 3 represents time in seconds. If the car traveled for t − 3 seconds, identify the expression that represents the speed of the toy car.
Answer:
[tex]t^2+1[/tex]
Step-by-step explanation:
We are given that
Distance traveled by a toy car
[tex]D(t)=t^3-3t^2+t-3[/tex]
Where t>3
Time taken by car =t-3 seconds
We have to find the expression which represents the speed of the toy car.
We know that
[tex]Speed=\frac{Distance}{time}[/tex]
Using the formula
[tex]Speed=\frac{(t^3-3t^2+t-3)}{t-3}[/tex]
[tex]Speed=\frac{t^2(t-3)+(t-3)}{t-3}[/tex]
[tex]Speed=\frac{(t-3)(t^2+1)}{t-3}[/tex]
[tex]Speed=t^2+1[/tex]
Hence, the expression which represents the speed of the toy car
[tex]t^2+1[/tex]
The expression that represents the speed of the toy car is [tex]t^2 + 1[/tex].
The calculation is as follows:Given that,
The distance traveled should be [tex]D(t) = t^3 - 3t^2 + t - 3[/tex]
Here t>3
Time taken by car = t -3 seconds
Now the expression should be
[tex]Speed = Distance \div time\\\\= ( t^3 - 3t^2 + t - 3) \div (t - 3)\\\\= t^2(t - 3) + (t - 3) \div (t - 3)\\\\= (t - 3) (t^2 + 1) \div (t - 3)\\\\= t^2 + 1[/tex]
Learn more: brainly.com/question/16911495
Please help quick
10 points
Answer:
[tex]y = x - 1[/tex]
:))))))))))
Answer:
-1
Step-by-step explanation:
the line goes through the y axes and it goes over -1 as it passes
Hi can someone help me plz??????
Simplify the linear expression by subtracting,
(9x - 8) - (x +4)
O 10x -4
O 10x + 12
O 8x -12
-3x
Nick goes to the mall. He purchased some clothes and toys for $140. He purchased the
clothes for $60. He also bought 2 toy planes. Both planes cost the same amount. Write
an equation to help you determine the price of one plane.
What is the cost of 1 plane?
Pls help asap
Answer:
the cost of 1 plane is $40
Step-by-step explanation:
Divide the polynomials.
Your answer should be a polynomial.
22 - 71 +12
I-3
Answer:
x - 4
Step-by-step explanation:
(06.01)
Solve the following system of equations and show all work.
y = x2 + 3
y = x + 5
36 is 80% of what number?
Enter your answer in the box
Answer:
36 is what percent of 80? = 45.
Answer:
45
Step-by-step explanation:
46/80%
pretty simple I hope this helps you
−6p=48
Help a kid out
Answer:
p = -8
Step-by-step explanation:
-6p = 48
divide both sides by -6
p = -8
Increase £55 by 37%
Give your answer rounded to 2 DP.
Answer:
75.35
Step-by-step explanation:
I hope this helped
1.A load of bricks weighs 7,798 ounces.
Each brick weighs 67 ounces. Use compatible numbers
to estimate the number of bricks in the
load.