Answer:
x< 3
Step-by-step explanation:
-2(5-4x)<6x-4
multiply -2 inside the parenthesis
-2 * 5 = -10
-2 * -4x= 8x
-2(5-4x)<6x-4
-10 + 8x < 6x -4
To solve for x we need 'x' on the left hand side
Subtract 6x from both sides
-10 + 8x -6x< 6x -6x -4
-10 +2x < -4
Add 10 on both sides
-10 +10 +2x < -4+10
2x < 6
divide by 2 on both sides
x< 3
a group of college students are volunteering for help the homeless during spring break. They are putting the finishing touches on a house they built. Working alone, irina can paint a certain room in 4 hours. Paulo can paint the same room in 3 hours. write an equation that can be used to find how long it will take them working together to paint the room. how many hours will it take them to paint the room?
A.12 hours
B.1.71 hours
C.0.14 hours
D.3.5 hours
Let us say that x is the total amount of time it will take if they work together.
From the given statement above, we know that the rate of Irina working alone is 1 job / 4 hours. While that of Paulo is 1 job / 3 hours. Where 1 job indicates to the job of completely painting the room. So adding the two rates would result in 1 job / x hours. Therefore:
1 / 4 + 1 / 3 = 1 / x
Multiplying both sides with 12 x:
(1 / 4 + 1 / 3 = 1 / x) 12 x
3 x + 4 x = 12
7 x = 12
x = 1.71 hours
So working together, they can paint the room for 1.71 hours.
Answer:
B
Zoey put a $1040 item on layaway by making a down payment of 13% of the purchase price. How much does she have left to pay after making the down payment?
A.$80
B.$135.20
C. $1040.00
D. $904.80
Downpayment is the percent amount paid from a sum of money. The amount left after the downpayment is $904.80
Downpayment on a priceDownpayment is the percent amount paid from a sum of money. If Zoey put a $1040 item on layaway by making a down payment of 13% of the purchase price, the amount he have left is;
Amount left = (100 - 13)% * 1040
Amount left .= 87% of 1040
Amount left = 0.87 * 1040
Amount left = $904.80
Hence the amount left after the downpayment is $904.80
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If you have 5 distinct positive integers and the median is 17 and the mean is 12, what are the 5 numbers? How do you know for sure? Can you find 5 distinct positive integers with a median of 17 and a mean of 10? What whole-number means will work for 5 distinct positive integers with a median of 17? What medians will work for 5 distinct positive integers with a mean of 12?
Molly earns a rebate each month on her movie tickets and books. She earns $0.25 for each movie ticket and $2 for each book. Last month Molly purchased 4 movie tickets and earned $17. Part A: Create an equation that will determine the number of books she purchased. (3 points) Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points) Part C: How many books did Molly purchase last month? (1 point)
4⋅10 6 4, dot, 10, start superscript, 6, end superscript is how many times as large as 1\cdot10^41⋅10 4 1, dot, 10, start superscript, 4, end superscript?
The given problem is very confusing since it was copy pasted directly from the source so the equations look scrambled and plus it was one words. After my own translation, I believe the given numbers are:
4 ⋅ 10^6
and
1 ⋅ 10^4
The symbol ⋅ means that the two numbers are multiplied while the symbol ^ means an exponent of. Now we are asked to find how much the 1st number is larger than the 2nd number. To solve this, we simply have to divide the bigger number by the smaller number. Since 4 ⋅ 10^6 has bigger exponent than 1 ⋅ 10^4 then it is the bigger number.
Ratio = 4 ⋅ 10^6 / 1 ⋅ 10^4
Ratio = 4 ⋅ 10^2 = 400
Therefore 4 ⋅ 10^6 is 400 times bigger than 1 ⋅ 10^4.
Answer:
400 times
Having knowledge about potencies we will find that the final value will be greater than 400 times.
Recalling the properties of powers we find:
Multiplication of powers with the same base.Division of powers with the same base.Power of potency. Potency of a product.Quotient power.Then we can write the two given powers as:
[tex]4 *10^6\\1 * 10^4[/tex]
We know that we have a multiplication and a power, so solving for each of them, we find:
[tex]Ratio = 4 *10^6 / 1 * 10^4\\Ratio = 4 * 10^2 = 400[/tex]
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Ivanna deposits $600 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in the first 2 years?
At the beginning of the month a store had a balance of −$554. During the month the store lost another $600. What is the current balance?
If EFGH is a parallelogram, then ___________________.
Answer: The correct option is (B) It might be a rhombus.
Step-by-step explanation: Given that EFGH is a parallelogram. We are to select the correct statement for EFGH.
A PARALLELOGRAM is a quadrilateral whose opposite sides are parallel and equal, opposite angles are equal, the sum of the interior angles is 360 degree.
A RHOMBUS is a particular type of parallelogram, where all the sides are equal and diagonals bisect each other perpendicularly.
Therefore, we can say that every rhombus is a parallelogram, but every parallelogram is not a rhombus.
Therefore, the parallelogram EFGH might be a rhombus.
So, option (B) is correct.
Darien ordered soda for $2.75, a sandwich for $8.50, and a dessert for $3.85. Sales tax was $1.15. Use mental math to find the total amount of the bill. Explain
This question is based on the mental math. Therefore, the total amount of bill is $16.25.
Given:
Darien ordered soda for $2.75, a sandwich for $8.50, and a dessert for $3.85. Sales tax was $1.15.
We need to determined the total amount of the bill.
Let start with the price of the dessert and the sales tax $3.85+ $1.15= $5.
Now, added 2.75 to $5 .
We get,
$2.75 + $5 = $ 7.75
Then, add 7.75 + 8.50.
We get,
= $16.25
Therefore, the total amount of bill is $16.25.
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https://brainly.com/question/2017990
You have ten fewer quarters than dimes and 5 fewer nickles than quarters. The total value of the coins is $4.75. How many quarters, nickles, and dimes do you have?
what is the distance between the points (3,7) and (15,16) on a coordinate plane?
distance = Sqrt((x2-x1)^2 +(y2-y1)^2)
15-3 =12
16-7=9
12^2 = 144
9^2 = 81
144+81 = 225
square root of 225 = 15
the distance is 15
Answer for lady stole 100 from owner she bought 70 dollars worth of products and got back 30 how much did the owner lose
Answer: The total loss incurred by the store owner is 100$.
At first look, the answer might seem to be 200$ or 130$, but that's not the correct one. The explanation is below:
The lady stole 100$ from the owner therefore loss incurred is 100$.
The lady went back to the store and:
Step 1 - The lady hands back the 100$ to the store owner. Loss incurred is back to 0$.
Step 2 - The store owner hands over merchandise worth 70$. Loss Incurred is now 70$.
Step 3 - The store owner hands over 30$ worth of change. Loss Incurred is (70 + 30)$ = 100$
What are the solutions of the equation 9x^4 – 2x^2 – 7 = 0? Use u substitution to solve.
A bag contains 7 red marbles, 8 blue marbles, and 9 green marbles. What is the probability of choosing a blue marble when one marble is drawn?
The probability of choosing a blue marble from the bag is 1/3.
Explanation:The probability of choosing a blue marble can be calculated by dividing the number of blue marbles by the total number of marbles in the bag. In this case, there are 8 blue marbles out of a total of 7 + 8 + 9 = 24 marbles.
So, the probability of choosing a blue marble is:
P(Blue Marble) = Number of Blue Marbles / Total Number of Marbles = 8 / 24 = 1/3
Final answer:
The probability of choosing a blue marble when one marble is drawn from the bag is 1/3 or approximately 0.333.
Explanation:
To find the probability of choosing a blue marble when one marble is drawn from a bag, we need to determine the number of favorable outcomes (blue marbles) and divide it by the total number of possible outcomes (all the marbles).
In this case, there are 8 blue marbles out of a total of 7 red + 8 blue + 9 green = 24 marbles. So the probability of choosing a blue marble is 8/24, which simplifies to 1/3 or approximately 0.333.
Therefore, the probability of choosing a blue marble when one marble is drawn is 1/3 or approximately 0.333.
What two steps are necessary to put this equation into standard form?
x^2-3x+27=8x-3
A. Add 3 to both sides and subtract 8x from both sides.
B. add 3 to both sides and add 8x from both sides.
C. the equation is already in standard form.
D. Subtract 3 from sides and subtract 8x from both sides.
The variable Z is directly proportional to X, and inversely proportional to Y. When X is 10 and Y is 4, Z has the value 47.5.
What is the value of Z when X = 13, and Y = 10
Can someone help me figure this out: Factor 12y^2-27? I keep getting the steps confused.
The four vertices of an inscribed quadrilateral divide a circle in the ratio 1 : 2 : 5 : 4.
The four angles of the quadrilateral are °, °, °, and °, respectively.
Answer:
The four angles of the quadrilateral are 30°, 60°, 150°, and 120°, respectively.
Step-by-step explanation:
Given : The four vertices of an inscribed quadrilateral divide a circle in the ratio 1 : 2 : 5 : 4.
To find : The four angles of the quadrilateral are °, °, °, and °, respectively.
Solution : We have given that The four vertices of an inscribed quadrilateral divide a circle in the ratio 1 : 2 : 5 : 4.
Let the angle of the quadrilateral is x
Then all the angles are x , 2x , 5x ,4x
Complete angle formed by circle is 360 °
Sum of all the angle are 360
x + 2x + 5x + 4x = 360 .
12 x = 360 .
On dividing both sids by 12.
x = 30 .
Then
2x = 60
5x = 5 * 30 = 150 .
4x = 4 *30 = 120 .
Therefore, The four angles of the quadrilateral are 30°, 60°, 150°, and 120°, respectively.
Answer:
for plato users the answers are 45,75,135,105
Step-by-step explanation:
In a certain set of numbers, 12.5 is 1.5 units of standard deviation above the mean, and 8.9 is 0.5 units of standard deviation below the mean. what is the mean of the set?
Martin bought 30 shares of microsoft at the close price of $24.53. in a few years, martin sells all of his shares at $33.71. how much money did martin make?
Answer:
Money that Martin make is $ 275.9
Step-by-step explanation:
Number of shares Martin Bought = 30
Cost Price of a share = $ 24.53
Total Cost price of all share = 30 × 24.53 = $ 735.9
Selling Price of a share = $ 33.71
Total Selling Price of all shares = 30 × 33.71 = $ 1011.3
Profit money that Martin make = 1011.3 - 735.9 = $ 275.9
Therefore, Money that Martin make is $ 275.9
Solve for x:p=12-x/1000
find the GCF 12, 18, 24
How do you factor the quadratic equation 36^2= 25
Compulsive hand washing often increases in frequency because it relieves feelings of anxiety. This best illustrates the impact of
Create a quadratic polynomial function f(x) and a linear binomial in the form (x − a). x^2 – 3x + 6 and x-9
Part 1. Show all work using long division to divide your polynomial by the binomial.
Part 2. Show all work to evaluate f(a) using the function you created.
x – 9 = 0
x = 9
First take the original expression. x^2 - 3x + 6
Fill in the blanks.
9^2-3(9)+6
81-27+6
81-21
60
What are the constants in the expression below? 12x -3.7 -8y +1/3
A gumball machine contains 230 gumballs of 5 different colors: 64 red, 22 blue, 32 orange, 26 green, and the rest white. The machine dispenser randomly selects one gumball. What is the probability that the gumball dispensed is white?
72/115 ≈ 63%
32/115 ≈ 28%
43/115 ≈ 37%
86/100 = 86%
Answer:
43/115 or 37%
Step-by-step explanation:
Choose the equation of the horizontal line that passes through the point (-5,9).
Y= -5
Y= 9
X= -5
X= 9
Answer: Y=9 Just because the guy above me said so.
What would you look for in a word problem that might indicate that you need to use an absolute value inequality?
How smart are you? A lady walk in the store and steals $100 bill from the register without the owners knowledge. She comes back 5 mins later and buys $70 worth of goods with the $100 bill. The owner gives her $30 in change. How much did the owner lose?