Out of a group of 20 volunteers, 11 people are chosen to participate in a survey about the number of miles they drive to work each week. What is the sample in this situation?
Answer:
11 persons chosen to participate in the survey
Step-by-step explanation:
A certain fraction or percentage of subjects or persons drawn randomly from a larger population is called a sample. A randomly selected set of sample will be representative of the population especially when it is impossible for the whole population to participate in the study. In the scenario above, the population or larger group would be the set of volunteers. The actual number of people chosen from the group of volunteers to participate in the survey is the sample, which are the 11 people chosen from the volunteers.
Amy had $28 dollar’s to spend on school supplies. After buying 7 pens, she had $20.30 left. How much did each pen cost including tax?
Answer:
Step-by-step explanation:
If Amy started with 28 dollars and bought 7 pens, then had 20.30 dollars, we can subtract to find the price of all 7 pens.
28-20.30=7.70 dollars
now to find the amount for EACH pen, we divide by 7
7.70/7=1.1
each pen costed Amy 1 dollar and 10 cents with tax
Answer:
$1.10
Step-by-step explanation:
$28-$20.30=$7.70
7.70 divided by 7= 1.10
so each pen must cost $1.10
-y + 9x = 0 Direct and inverse variation. constant of variation (k)
this what teacher explain to us
A veterinarlan treated 7 dogs this morning. The list below gives the weights (in pounds) of each dog. 24,3,29, 24,8, 38,62 Find the range of the data set.
A garden center has 150 fruit trees to sell.
1/10 of the trees are lemon trees.
2/5 of the trees are orange trees.
1/3 of the trees are peach trees.
The rest are pear trees.
How many trees are pear trees?
Answer:25 pear trees
Step-by-step explanation:
15/150
60/150
50/150
15+60+50=125
150-125=25
Study the figure.
53
53
?
What is the measure of the missing exterior angle, in degrees?
Answer:
exterior angle is equal to the sum of two interior opposite angle
?=53+53=106°
missing exterior angle =106°
The measure of the exterior angle is 106°.
What is an exterior angle?Exterior angles are angles that are parallel to the inner angles of a polygon but lie on the outside of it.
Given that, a triangle has two interior angles 53° and 53° and an exterior angle x,
Since, we know that, sum of opposite two interior angles of a triangle is equal to measure of exterior angle.
Therefore,
53° + 53° = x
x = 106°
Hence, the exterior angle is 106°
Learn more about exterior angles, click;
https://brainly.com/question/28835566
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Plz help... 50 points and brainliest for correct answers
Step-by-step explanation:
Hi,
For the first screenshot, your answer will be...
A) 1/10 + 1/4 ≤ 1
And for the second screenshot, your answer will be...
A) d ≤ -1/2n + 5
I hope this helps :)
The product of 2 numbers is negative 48. If one of the numbers 16, what is the missing number?
Answer:
i think it might be -3
Step-by-step explanation:
16*-3 gives you -48
1/4 × 7/7
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
Answer:
0.25 good luck with the answer
Please help, thank you so much! I'll give brainliest to the correct answer!
Which of the following scenarios does NOT represent an impulse purchase?
Impulse purchase: A purchase that isn't planned
1. Jenna goes to the supermarket to purchase groceries and decides to use the money to purchase a few magazines instead.
2. Jenna goes to the supermarket to purchase groceries and purchases many buy one get one free food items that she saw advertised in the grocery flyer.
3. Jenna goes to the supermarket to purchase groceries and purchases a bouquet of flowers instead.
Answer:
2
Step-by-step explanation:
This is because the other ones were going to be spent on something else, but then they were spent on magazines or flowers.
Answer:
2
Step-by-step explanation:
The other are impulse purchases:
1. She does not buy the groceries because she wanted magazines.
3.She does not buy the groceries, instead she buys flowers.
Steve is standing on level ground 700 feet from the base of the Washington Mounument.The monument is 555 feet tall
Step-by-step explanation:
(Steve's distance from the tip of the monument I'm assuming?)
ans: about 893.92 ft (√798,025)
a²+b²=c²
a=700
b=555
Ruby uses 3/8 of a cup of blueberries for her smoothie. If she has 4
cups of blueberries, how many smoothies can she make?
plz help quick
Answer:
10 smoothies
Step-by-step explanation:
because each 3/8th yields 2 smoothies and the leftovers from each cup made 2 more.
A car left at 09:45.the journey took 25 minutes. Work out when it arrive
Answer:
The car arrived at 10:10
Step-by-step explanation:
1. Break up the time the journal took to make it easier
9:45 + 15 minutes = 10:00
10:00 + 10 minutes = 10:10
2. Check your answer
10 + 15 = 25 minutes total
Answer: 10:10 am or pm
Step-by-step explanation:
1/4(1/3k+9)=6 step 1- 1/3k=15 step 2- 1/3k=15 step 3- k=5 find Olgas mistake step 1 step 2 steps 3 Olga did not make a mistake
Answer:
Step 3 contains error.
Step-by-step explanation:
The given equation is :
[tex]\dfrac{1}{4}(\dfrac{1}{3}k+9)=6[/tex]
Step 1.
Cross multiplying,
[tex](\dfrac{1}{3}k+9)=24[/tex]
Step 2.
Subtract 9 from both sides
[tex]\dfrac{1}{3}k+9-9=24-9\\\\\dfrac{1}{3}k=15[/tex]
Step 3.
Cross multiplying
[tex]k=15\times 3\\\\k=45[/tex]
So, there is an error in step 3. The correct answer should be 45.
Which of the following numbers is a perfect square
484
485
489
490
Answer:
484
Step-by-step explanation:
484=22^2
What value of x is the solution to 2.5x =8?
Answer:
x=3.2
Step-by-step explanation:
2.5x=8
divide both sides by 2.5
x=3.2
Answer:
x = 3.2
Step-by-step explanation:
[tex]2.5x = 8[/tex]
[tex]2.5x - 2.5 = 8 \div 2.5[/tex]
[tex]x = 8 \div 2.5[/tex]
[tex]x = 3.2[/tex]
what is 56 squared minus 7 intervuled
Answer: 12
Step-by-step explanation:
Please help me ASAP!!!
See pic attached
Answer:a*b=b*a
hence verified
josh put some water into his empty swimming pool on Monday then he put an equal amount of water in the pool on Tuesday the pool was then 3/4 full of water how fuel was the swimming pool after josh put the water in on Monday
Answer:
3/8
Step-by-step explanation:
since you can't have 1.5/4, which was how much he Josh put on each day, you have to multiply the denominator and the numerator for a more complex fraction. So 1.5/4 x 2 for both = 3/8.
A rocket is launch from atop a 74 foot cliff with an initial velocity of 113 ft/s the height of the rocket above the ground at time t is given by H= -16t + 113t + 74 when will the rocket hit the ground after it is launched?
Answer: We will use the QUADRATIC FORMULA.
x=7.6659375
Step-by-step explanation:
Use the Quadratic formula
a=-16,b=113,c=74
And then use the quadratic formula and you get x=7.6659375
Ayo can y’all pls come up with a 4th grade math problem and then answer it
Answer:
-8 x -3 = 24.
Step-by-step explanation:
When to negatives are multiplied, they automatically become positive. Therefore, 8 x 3 = 24.
Answer:
(8x7)\2 + x =5
Step-by-step explanation:
8x7= 56 \2 28+x= 33
Pls help will give 100 points
Answer:
Step-by-step explanation:
Answer:
Whats the question??
Step-by-step explanation:
Can someone please help me in this!!
ASAP
If you roll a 6-sided die 6 times, what is the best prediction possible for the number of times you will roll a one?
Answer:
yes
Step-by-step explanation:
Please help ASAP. No links for an answer please or I will report you'8th grade
Answer:
2.389 × 10^5
Step-by-step explanation:
the coefficient must be between 1 to 10
100,000^1/5 x a + 1,000,000^1/2 x a
Answer:
1010a
Step-by-step explanation:
Mathematically, when a number is raised to a fraction, it simply means we are to find the root of that number to the denominator of the given fraction
For example;
100,000^1/5
= 5 x√((100,000) = 10
Likewise;
1,000,000^1/2 = √(1,000,000) = 1000
Thus, we have it that;
10 * a + 1000 * a
= 10a + 1000a = a(1000 + 10) = 1010a
katie wants to buy a watermelon from the store if the watermelon costs $1.20 per kilogram and the watermelon weighs 6 kilograms how much money will katie spend on the watermelon?
Answer:
p=0.60w
Step-by-step explanation:
Let
p ----> the price of a watermelon in dollars
w ---> the weight of a watermelon in pounds
In this problem we have a proportional relationship
Remember that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
In this problem
p=kw
The value of the constant of proportionality k is the same that the unit rate
Find out the unit rate
Divide the total cost by the total weight
k=4.38/7.3=0.60per lb
substitute in the equation
p=0.60w
Step-by-step explanation:
brainliest?
Can someone please help me answer this question asap thank you . No links please and thank you.
Answer:
Step-by-step explanation:
hi
whats the the midpoint between (2, -1) and (-6, 0).
Answer:
X Midpoint -2 Y Midpoint -0.5
Answer:
(-2, -.5)
Step-by-step explanation:
2-6=-4 -1+0=-1
-4/2=-2 -1/2=-.5
A pattern is made from four congruent squares.
The sides of the squares are parallel to the axes.
N
Point A has coordinates (3, 2)
YA
B (27, 30)
Point B has coordinates (27, 30)
Point C is marked on the diagram.
Work out the coordinates of C.
Answer:
(13, 16)
Step-by-step explanation:
Point A has coordinates (3,2) Point b has the coordinates (27,30)
Therefore the width of the diagram = 27 - 3 = 24 units and the height of the diagram = 30 - 2 = 28 unit
The length of the square = 28 unit / 4 square = 7 unit
Also, half of the height of the diagram = 28/2 = 14 unit
Therefore the x coordinate is given by:
27 - (2 × 7) = 27 - 14 = 13 or 27 - 14 (=13) or 3 + 7 + (24 - 3 × 7) = 13
Also, the y coordinate is given by:
30 - (2 × 7) = 30 - 14 = 16 or 30 - 14 (=16) or (30 + 2)÷2 = 16
Therefore the coordinate for point C is given by (13, 16)
hope it help :)