Answer:
15 long-sleeved shirts can be ordered.
Step-by-step explanation:
x = amount of short-sleeved.
y = amount of long-sleeved.
10x + 12y = 300
10(12) + 12y = 300
120 + 12y = 300
12y = 300 - 120
12y = 180
y = 180 / 12
y = 15
Some one please he nice and help me
Answer:
I think its x≥3
Step-by-step explanation:
5x+4≥19
Subtract 4 from both sides.
5x+4−4≥19−4
5x≥15
Step 2: Divide both sides by 5.
5x /5 ≥ 15 /5
=x≥3
Use any pair of points to calculate the slope of the line.
A- 3/2
B- -3/2
C- 6/4
D- -2/3
Answer:
Either A or D I think
Step-by-step explanation:
PLZZ HELP ASAP !!! HURRY !!!
Ruby is decorating for a party and needs 120 meters of ribbon. At the party supply store, the ribbon is sold in rolls. Each roll contains 25 feet of ribbon. How many rolls will Ruby need to purchase? (1 meter is approximately 39.37 inches)
A. 16 rolls
B. 14 rolls
C. 12 rolls
D. 10 rolls
Answer:
A. 16 rolls
Step-by-step explanation:
First, convert 120 meters to inches.
120 meters X 39.37 inches = 4724.4 inches
Then convert the 4724.4 inches into feet.
4724.4/12 = 393.7 feet
Therefore, she needs approximately 383.7 feet.
To get the number of rolls, divide 383.7 by 25 since each roll has 25 feet of ribbon.
383.7/25 = 15.748
15.748 can be rounded up to 16 rolls.
Suppose y varies inversely as x, and y=25 when x=3. Find x when y=15
Answer:
If
y
varies inversely as
x
then
XXX
x
⋅
y
=
c
for some constant
c
We are told when
x
=
2
then
y
=
15
So
XXX
2
⋅
15
=
c
XXX
⇒
c
=
30
and
XXX
x
⋅
y
=
30
Therefore when
y
=
3
XXX
x
⋅
3
=
30
XXX
→
x
=
10
Step-by-step explanation:
A basketball player attempts 15 baskets in a game. He makes 9 of the attempted baskets. Part A: Write a ratio that describes the number of baskets the player made to the number of
baskets the player attempted?
Part B: Find an equivalent ratio based on the ratio you created in Part A. Show your work below.
Answer:
Part a: The ratio is 9:15
Part b: The equivalent ratio is 3:5
Express the rate as a unit rate.
$12 for 4.8 pounds
$ ____ per lb
Answer:
2.5 Hope that helps you
PLEASE HELP
this is a formula for a sequence, f(x) = 8 - 11x, what is f(8)?
Answer:
-80
Step-by-step explanation:
plug in 8 to the equation
8 - 11 (8)
multiply 8 and 11 first: 8 - 88
add 8 to -88: -80
What is one third of these?
1
3/4
2
1 1/2
2 1/4
1/2
Answer:
1/3
1/4
2/3
1/2
3/4
1/6
Step-by-step explanation:
Simply multiply each number by one-third.
1 * 1/3 = 1/3
3/4 * 1/3 = 3/12 = 1/4
2 * 1/3 = 2/3
1 1/2 = 3/2 * 1/3 - 3/6 = 1/2
2 1/4 = 9/4 * 1/3 = 9/12 = 3/4
1/2 * 1/3 = 1/6
The function p(x) = −2000x2 + 18000x − 15000 models the monthly profit P of a smoothie company, where x represents the price per smoothie. Identify the price range that will generate a monthly profit of at least $25,000. a. Between $4 and $5; inclusive b. Less than $4 c. Between $4 and $5; exclusive d. More than $5
Answer:
Step-by-step explanation:
Givem the profit function
p(x) = −2000x2 + 18000x − 15000
We are to generate the price range that will generate a monthly profit of at least $25,000
Substitute into the function we have;
25000 = −2000x2 + 18000x − 15000
Divide through by 1000
25 = -2x²+18x-15
Rearrange
-2x²+18x-15-25 = 0
2x²-18x+40 = 0
Divide through by 2
x²-9x+20 = 0
Factorize
x²-5x-4x+20 = 0
x(x-5)-4(x-5) = 0
x-4 = 0 and x-5 = 0
x = 4 and x = 5
Hence the price range that will generate a monthly profit of at least $25,000 is between $4 and $5 inclusive
SOMEBODY HELP ME!! I need to know what is the best way to describe this relationship.
Answer:
Its very hard to see it
Step-by-step explanation:
Answer:
Its B
Step-by-step explanation:
help me please I don't get it
Answer:
it's the last one
Step-by-step explanation:
to find the perimeter, you must add all the sides.
25 plus 25 is 50
multiple x by two for both sides and that will give you the perimeter of 70
Richard went kayaking last weekend. On Saturday, he kayaked for 2 hours and went 7 kilometers. On Sunday, he kayaked on a different river for 3 hours and went 12 kilometers. On which day did Richard kayak at a faster average speed?
Richard was faster on Sunday than Saturday.
What is average speed?The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity. It is represented by the magnitude and does not have direction.
The formula for average speed is found by calculating the ratio of the total distance traveled by the body to the time taken to cover that distance.
Average Speed = Total Distance traveled/Total Time taken
The average speed equation is articulated as:
Given,
Richard on Saturday,
kayaked distance = 7kms.
Time taken = 2 hours
Speed = Distance/ Time
Speed on Saturday = 7/2
Speed on Saturday = 3.5 km/hr.
Richard on Sunday,
kayaked distance = 12kms.
Time taken = 3 hours
Speed = Distance/ Time
Speed on Sunday = 12/3
Speed on Sunday = 4 km/hr.
Hence, by the above calculation Richard was 0.5 km/hr. faster on Sunday than Saturday.
Learn more about average speed here:
https://brainly.com/question/9834403
#SPJ2
solve and graph on number line8 - 1y ≤ 7
Solution: y [tex]\geq[/tex] 1
Graph:
171 is 0.9% of?
Please help C:
Answer:30$
Step-by-step explanation:
You make it
Answer:
186.39
Step-by-step explanation:
171 is 0.9% of.
You need to multiply 171 * 1.09
171 * 1.09 = 186.39
171 is 0.9% of 186.39
Clare claims that (10+3)(10-3) is equivalent to 10 32 and and (20+1)(20-1) is equivalent to 202-12 Do you agree? Show your reasoning.
Answer:
no because paranthesis should always be done first
Step-by-step explanation:
it should be (13)(7)(21)(19)
Find the value of y when x= -12.
y=x/2 +9
y =
Answer:
3 is what I think the answer is
can someone help me with this question? please
9514 1404 393
Answer:
208
Step-by-step explanation:
First of all, it is useful to draw the factory location and the path the truck takes.
If you're paying attention, you will notice that the distance from each marked location to the origin is 3 grid squares horizontally and 4 grid squares vertically. This makes the distance to the origin be the hypotenuse of a 3-4-5 triangle, or 5 grid squares.
Then the distance diagonally from the warehouse to the airport is 10 grid squares. The distance horizontally from the airport to the factory is 6 grid squares, for a total distance of 10+6 = 16 grid squares.
You will notice the grid squares are marked as 13 miles each. The miles driven by the truck are ...
(13 miles)(16) = 208 miles
_____
As you can see, it is helpful to notice when problems make use of 3-4-5 triangles.
If you want to compute this more or less directly, you can recognize the horizontal distance from warehouse to airport is 78 miles, and the vertical distance is 104 miles. The Pythagorean theorem tells you the diagonal distance is ...
WA = √(78² +104²) = √16900 = 130
The distance to the factory is 78 miles, so the total is ...
130 +78 = 208 . . . miles the truck drives
During second period, Andrew completed a grammar worksheet. Of the 32 questions, Andrew got 50% right. How many questions did Andrew get right?
Answer:
16
Step-by-step explanation:
32/2 = 16
So, he got 16 questions right and 16 questions wrong!
Commute times in the U.S. are heavily skewed to the right. We select a random sample of 200 people from the 2000 U.S. Census who reported a non-zero commute time. In this sample the mean commute time is 27.5 minutes with a standard deviation of 18.9 minutes. Can we conclude from this data that the mean commute time in the U.S. is less than half an hour? Conduct a hypothesis test at the 5% level of significance. What is the p -value for this hypothesis test?
Answer:
Step-by-step explanation:
Given that:
The population mean [tex]\mu[/tex] = 30
The sample size n = 200
The sample-mean [tex]\overline x[/tex] = 27.5
The sample standard deviation s = 18.9
The level of significance ∝ = 0.05
The null hypothesis and the alternative hypothesis can be written as:
[tex]H_o:\mu \ge 30 \\ \\ H_1: \mu < 30[/tex]
Since the alternative hypothesis indicates < sign, then this test is left-tailed
The t-test statistics is:
[tex]t =\dfrac{\overline x - \mu }{\dfrac{s}{\sqrt{n}}}[/tex]
[tex]t =\dfrac{27.5 -30 }{\dfrac{18.9}{\sqrt{200}}}[/tex]
[tex]t =\dfrac{-2.5}{\dfrac{18.9}{14.142}}[/tex]
t = -1.871
The p-value = P(t< -1.871)
From the standard normal t tables
The p-value = 0.0314
Thus, since the p-value is less than the level of significance ∝ = 0.05, then we reject the null hypothesis.
someone help, i dont need steps just answer
Answer:
looks like 30
Step-by-step explanation:
Please help as soon as possible. I'm writing a research paper and this is one question it must answer. I am stuck on it.
Where in the real-world is the Pascal Triangle used? Provide at least 1 real-world situation.
cell division? kkkookwk
Answer:
One real life situation that Pascal's Triangle is used for is Probability
Step-by-step explanation:
One real life situation that Pascal's Triangle is used for is Probability, and combinations. We have situations like this all of the time. For example, say you are at an ice cream shop and they have 5 different ice creams. You want to know how many different ways you can pick two of the ice creams and eat them.
Write and solve the algebraic inequality: The product of -5 and a number is at least -40.
A. -5x > -40; x > -8
B. -5x ≥ -40; x ≤ 8
C. -5x -8
D. -5x ≥ -40; x ≥ 8
Angie is testing her science fair project, an erupting model volcano. In her first trial, she uses 3 drops of red coloring and 5 drops of yellow coloring for the lava. In her second trial, she uses 4 drops of red coloring and 8 drops of yellow coloring. Which trial had a lower ratio of red coloring to yellow coloring?
Given :
Angie is testing her science fair project, an erupting model volcano.
In her first trial, she uses 3 drops of red colouring and 5 drops of yellow colouring for the lava.
In her second trial, she uses 4 drops of red colouring and 8 drops of yellow colouring.
To Find :
Which trial had a lower ratio of red colouring to yellow colouring.
Solution :
Ratio at first trial :
[tex]R_1=\dfrac{3}{5}\\\\R_1=0.6[/tex]
Ratio at second trial :
[tex]R_2=\dfrac{4}{8}\\\\R_2=0.5[/tex]
Therefore, second trial had a lower ratio of red colouring to yellow colouring.
Hence, this is the required solution.
Answer:
Step-by-step explanation:
The second trial has lower ratio
Yooo who could do thisss ? ?
Answer:
hey sleepy! the answer is (8 , 0)
happy to help
A truck driver travels from a distributor to a retailer every week. The driver records the distance that he is from the retailer at different times during his trip. After several weeks of collecting data, the driver creates a scatter plot of the data. The best-fit line is Y=73.6 - 67.8x where x is the number of hours spent driving and y is the distance, in miles, from the retailer. Which of the following statements are true? Select all that apply. A. The distance from the retailer increases with time. B. The distance from the retailer decreases with time. C. The distributor is 67.8 miles away from the retailer. D. The distributor is 73.6 miles away from the retailer. E. The truck is traveling at a rate of 67,8 miles per hour. 1 1 1 ED 1 1 1 1
Answer:
Options (B), (D), and (E) are correct.
Step-by-step explanation:
The given best fit curve for the collected data is
[tex]y=73.6 - 67.8x\cdots(i)[/tex]
Where x is the number of hours spent driving and y is the distance of distributer, in miles, from the retailer.
As the driver starts recording the time when he starts from the retailer, so at the starting time, x=0, the driver is at the retailer.
So, putting x=0 in the given equation (i) to get the distance between the distributor and retailer, we have
[tex]y =73.6 - 67.8\times 0[/tex]
[tex]\Rightarrow y= 73.6[/tex] miles.
So, the distributor is 73.6 miles away from the retailer.
From equation (i), as x (time) increases the value of y (distance) decreases.
So, The distance from the retailer decreases with time.
Now, obtaining the rate of change the distance,y, from quation (i), with respect to time,x, to get the speed of the truck, we have
[tex]\frac {dy}{dx}=-67.8[/tex] mile/hour
Negative sign shows that the distance is decreasing, taking the magnitude of the rate of change of distance with respect to time to get the speed,
speed [tex]= | dy/dx |= | -67.8 | = 67.8[/tex] miles/hour
So, the speed of the truck is 67.8 miles per hour.
Hence, options (B), (D), and (E) are correct.
Using linear function concepts, it is found that the correct options are:
B. The distance from the retailer decreases with time.
D. The distributor is 73.6 miles away from the retailer.
E. The truck is traveling at a rate of 67,8 miles per hour
A linear function is modeled by:
[tex]y = mx + b[/tex]
In which:
m is the slope, which is the rate of change. b is the y-intercept, which is the initial value.In this problem, the distance, in miles, after x hours driving is modeled by:
[tex]y = 73.6 - 67.8x[/tex]
The slope is [tex]m = -67.8[/tex], which means that the distance decreases with time, and the truck is traveling at a rate of 67.8 miles per hour, hence options B and E are correct.The y-intercept is of [tex]b = 73.6[/tex], which means that the initial distance is of 73.6 miles, hence option D is correct.A similar problem is given at https://brainly.com/question/24808124
DONT TYPE NO RANDOM ANSWER I WILL REPORT THX :)
The Han era was a time of peace where literature and the arts blossomed
True of False
Answer:
True.
Step-by-step explanation:
The Han era was when paper and porcelain was invented. It was a time of peace when China could build up.
Hope this helps plz mark brainliest :D
Let r = ⟨7, 1⟩, s = ⟨–6, 2⟩, and t = ⟨–9, –3⟩. What is 10r + s – t?
a) ⟨55, 9⟩
b) ⟨55, 15⟩
c) ⟨73, 6⟩
d) ⟨73, 15⟩
Answer:
73,15
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Just did the test
Use intercepts to graph the linear equation −12x+3y=24.
Answer: slope is 4, y intercept is ( 0,8) , x intercept is (-2,0)
Step-by-step explanation: graph the line using the slope and and y intercept.
pls complete it (picture )
Answer:
32cm²
Step-by-step explanation:
4 cm * 8 cm = 32 cm²
What is the approximate minimum height of a shelf in which this box can fit in the position shown in the picture?
what is the picture? I would love to help if I knew what the picture looked like.
Answer:6.7 centimeters>###
Step-by-step explanation:
