Answer:
-48
Step-by-step explanation:
Subsitute -27 for x
-27+(-21) when you add negatives you keep the negative sign
-48
there are 880 student in a school . if 75% of students passed the final exam find the number of passed and failed student
1st person to answer you get brainest
The grocery store makes a 32% profit on deli foods. The profit for the
deli last month was $640. What was the total sales for the deli last
month?
Answer:
$2000
Step-by-step explanation:
The profit is the money earned by the store, meaning in this case, it's 32%. 32 percent of an amount is equal to 640. Set up an equation: 0.32(x) = 640, where x is the total money earned including the profit. x is solved to be 2000 dollars.
The function is defined as follows for the domain given.
f(x)=3x+2, domain = (-2,-1,0, 1}
What is the range?
Answer:
just go to Khan academy, they explain how to get it there. that way you'll learn how to do it while also getting the answer
Combine like terms. 5y - 8 - y
hence the combination=
[tex] \bold {4y - 8}[/tex]
All the best !
Answer:
4(y-8)
Step-by-step explanation:
5y-y (1) = 4y-8
4 (y-8)
If I passed out math books and the length is 10 inches the. Width is 8 inches.What is the perimeter of each book
Answer:
36
Step-by-step explanation:
You add all the sides together 10
+10+8+8=36
Solve the equation by factoring.
3x^2 - 7x + 4 = 0
1/8 expressed as a percentage is
Answer:
The answer is 12.5%
Step-by-step explanation:
Hope this helped!
Answer:
12.5%
Step-by-step explanation:
Divide 1 by . Therefore, the fraction 18 is equivalent to 12.5% .
Two adults and one child go to a movie and pay $26. One adult and 3 children pay
$28. How much would it cost for one adult and one child to see the movie?
Answer:
adults pay $10
children pay $6
Step-by-step explanation:
x = adult
y = child
2x + y = 26
x + 3y = 28
you want to cancel out x or y
multiply -2 with (x + 3y = 28) which is -2x -6y = -56
2x + y = 26
-2x -6y = -56
-5y = -30
y = 6
put y back into an equation
2x + y = 26 is
2x + 6 = 26
x = 10
check the answer
Two adults and one child go to a movie and pay $26
20 + 6 = 26 : checks
One adult and 3 children pay $28
10 + 18 = 28 : checks
Area of a circle
You might need: Calculator
Find the area of a circle with a radius of 2.
Either enter an exact answer in terms of IT or use 3.14 for TT and enter your answer as a decimal.
units
2
Show Calculator
Report a problem
Stuck? Review related articles/videos or use a hint.
Answer:
12.56
Step-by-step explanation:
π x 2² = π x 4 = 3.14 x 4 = 12.56
Melanie invested $63,000 in an account paying an interest rate of 7\tfrac{1}{8}7
8
1
% compounded quarterly. Lillian invested $63,000 in an account paying an interest rate of 7\tfrac{3}{8}7
8
3
% compounded continuously. After 15 years, how much more money would Lillian have in her account than Melanie, to the nearest dollar?
Answer:
$8727
Step-by-step explanation:
The difference in investment values can be found by computing the value of each investment, then finding the difference. Here, we're concerned with investments compounded quarterly and compounded continuously.
a)Melanie's investment value is computed using the formula ...
FV = P(1 +r/n)^(nt) . . . . where P is the principal, r is the annual rate, t is the number of years
FV = $63,000(1 +0.07125/4)^(4×15) = $63,000(1.0178125^60)
FV = $181,721.94
__
b)Lillian's investment value is computed using the formula ...
FV = Pe^(rt)
FV = $63,000·e^(0.07375×15)
FV = $190,449.05
__
c)The amount more that Lillian has is ...
$190,449.05 -181,721.94 = $8,727.11
Lillian has about $8727 more than Melanie.
_____
Additional comment
The interest rates expressed as decimal values are ...
7 1/8% = 0.07125
7 3/8% = 0.07375
Which place is in the thousand place in 4,968,123
Answer:
The "8"
Step-by-step explanation:
Here's a simplified reason why:
When you start from the 3, that should be the one digit.
The 2 shall be tens
The 1 shall be hundreds
AND FINALLY, THE 8 which is the thousands place.
What is mode for this data set 41,43,45,3,11, 23,
Answer:
there is no mode
Step-by-step explanation:
None of the numbers repeat more than once
Brianna needs to contact members of the softball league. She calls 2 members of the softball league. Those 2 people each call 2 more people in the afternoon. That evening, those additional people each call 2 others. How many people are called that evening?
Answer:
8
Step-by-step explanation:
because I plus all 2 and say evening how many see
Moving to another question will save this response.
Question 1
Solve the equation for X.
4(3x + 2) = 68
Answer:
x=5
Step-by-step explanation:
1. Open the parenthesis:
12x+8=68
2. Subtract 8 from both sides
12x=60
3. Solve for x:
x=60/12
x=5
Answer:
x=5
Step-by-step explanation:
4(3x+2=68
x=5
this is the answer
Find the product.
75 × 222
A. 17,650
B. 16,500
C. 16,650
D. 14,110
What type is this angle
If u click there will be pic
Honey is a technology company that provides online coupons to its subscribers. Honey's analytics staff has developed a classification method to predict whether a customer who has been sent a coupon will apply the coupon toward a purchase. For a sample of customers, the following table lists the classification model's estimated coupon usage probability for a customer. For this particular campaign, suppose that when a customer uses a coupon, Honey receives $1 in revenue from the product sponsor. To target the customer with the coupon offer, Honey incurs a cost of $0.05. Honey will offer a customer a coupon as long as the expected profit of doing so is positive. Using the equation
Expected Profit of Coupon Offer = P(coupon used) × Profit if coupon used + (1 - P(coupon used)) × Profit if coupon not used
determine which customers should be sent the coupon.
Customer Probability of Using Coupon
1 0.47
2 0.35
3 0.27
4 0.03
5 0.08
Determine the expected profit for each customer. Round your answers to the nearest cent. Enter negative value as negative number, if any.
Customer Expected Profit
1 $
2 $
3 $
4 $
5 $
The expected profit is positive for customers
- Select your answer -
, so these customers
- Select your answer -
the coupon
Based on the expected profit to Honey, and the probability of the various customers using the coupons, all customers except customer 4 should be sent coupons.
What is the expected profit for all customers?The profit to Honey if people use the coupons is:
= Revenue - Cost
= 1 - 0.05
= $0.95
The profit if the coupon is not used is the cost of $0.05.
Customer 1 expected profit:
= P(coupon used) × Profit if coupon used + (1 - P(coupon used)) × Profit if coupon not used
= (0.47 x 0.95) + ( (1 - 0.47) x -0.05)
= $0.42
Customer 2 expected profit:
= (0.35 x 0.95) + ( (1 - 0.35) x -0.05)
= $0.30
Customer 3 expected profit:
= (0.27 x 0.95) + ( (1 - 0.27) x -0.05)
= $0.22
Customer 4 expected profit:
= (0.03 x 0.95) + ( (1 - 0.03) x -0.05)
= -$0.02
Customer 5 expected profit:
= (0.08 x 0.95) + ( (1 - 0.08) x -0.05)
= $0.03
In conclusion, all customers expect customer 4 should be sent the coupons as they result in profits.
Find out more on expected profit at https://brainly.com/question/10675141.
This week, max worked 15 hours and made $ 131.25. last week, he made $157.50. How many hours did he work ?
Max worked hours.
will mark brainlest
Answer:
18
Step-by-step explanation:
131.25/15=8.75
8.75x18=157.50
Answer:he worked 18 hours
Step-by-step explanation: if he made 131.25 in 15 hours ( 131.25 divided by 15= 8.75) so 8.75$ is how much he makes an hour so 157.50 divided by 8.75 = 18 so max worked 18 hours and made 157.50$
Please Help
Which expressions are equivalent to 7(-4/3 x -3)? Select two options.
Answer:
Step-by-step explanation:
7(-3/4x-3) is the same as
7(-3/4x)-7(3) and
-5 1/4x-21
Let me explain this a little bit more.
If you take the 7 times the first part or -3/4x you get 7(-3/4x) You take 7 times the second part you get -7(3)
When you actually solve them:
7(-3/4x) = -5 1/4x and -7(3) = -21.
hope this helps.
Please help me I do not understand
Answer:
x = 12
Step-by-step explanation:
x⁹ = 12² • 12⁷
x⁹ = 12²+⁷
x⁹ = 12⁹
x = 12
The sum of three consecutive odd integers is 42. What is the LARGEST of these three integers?
Answer:
17
Step-by-step explanation:
13+15+17=42
17 is the largest of these numbers.
someone please help I’ll make you BRAINLIST
Answer: x=2√3
sin θ= opposite side ÷ hypotenuse
sin 30°= √3÷ x
sin 30°= 1/2
Therefore,
1/2= √3÷x
1/2×x=√3÷x×x
x is cancelled off on the right hand side,
1/2×x=√3
1/2× x ×2=√3×2
1/2 and 2 cancel off on the left hand side,
x= 2√3
Hope this helps!
Step-by-step explanation:
Solve for x 64^x^2 = 256^x
Answer:
x = 0, 1.333333...
Step-by-step explanation:
1) Convert both sides to the same base.
[tex]16^{1.5x^{2} } =16^{2x}[/tex]
2) Cancel the base of 16 on both sides.
[tex]1.5x^{2} =2x[/tex]
3) Move all terms to one side.
[tex]1.5x^{2} -2x=0[/tex]
4) Factor out the common term x.
[tex]x(1.5x-2)=0[/tex]
5) Solve for x.
1 - Ask: When will x(1.5x-2) equal zero?
When x = 0 or 1.5x - 2 = 0
2 - Solve each of the 2 equations above.
x = 0, 1.333333...
The graph of y = f ′(x) is shown below. List the intervals where the graph of f is decreasing.
Graph consists of 3 line segments from x equals negative 4 to x equals 4. Graph is decreasing from x equals negative 4 to x equals negative 2, increases from x equals negative 2 to x equals 2 and decreases from x equals 2 to x equals 4. There are x intercepts at x equals negative 4, 0 and 4.
(–4, –2)
(–2, 2)
(–4, 0)
(0, 4)
Answer:
try substituting it should get you the correct answer if not im sorry.
Step-by-step explanation:
hi pls help pls pls pls
Answer:
yes but in what help you need
Step-by-step explanation:
first explain me what help
then give brainliest
then give thanks
then rate 5 stars
Karen started painting the walls at 9:25 am, and she said that she would finish the job at 2:35 pm. Her mother said that three fourths of that time was enough to paint the walls. However, when Karen finished the job, they noticed that it actually took her 2/3 of an hour longer than the time predicted by the mother. How much longer did Karen predict it would take then the time it actually took her to complete the job (what part of an hour)?
Answer:
She predicted it would take her 2/3 of an hour less than it actually took her.
Step-by-step explanation:
Answer:
2/3 of an hour less than it actually took her.
Step-by-step:
Not the Karen's hahahaha
Choose the equation that represents a line that passes through points (-6, 4) and (2.0).
Aunt Jane weighs 45 newtons. What is her mass in kilograms?
Answer:
45 newtons = 10.1164024 pounds/force
Step-by-step explanation:
Hope this helps!!!
The required mass of Aunt jane is given as 4.5 kilograms.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
Given that, Aunt Jane weighs 45 newtons.
So,
F = 45
Since F = Mg,
Mg = 45
M(10) = 45
N = 4.5 kilograms,
Thus, the required mass of Aunt jane is given as 4.5 kilograms.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ2
f(x) = x4 +x - 5, find f(0).
Answer:
f(0) = -5
Step-by-step explanation:
f(x) = x^4 +x - 5
Let x=0
f(0) = 0^4 +0 - 5
= -5