Alex can paint 4 and a half doll houses with each can of paint.
What is a unitary method?A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.
Given, Alex paints a total of 9 dollhouses using 2 cans of paint.
So, to obtain the no. of doll houses Alex can paint with each can of paint we'll divide the total no. of dollhouses painted by the total no. of paint cans used which is,
= (9/2) dollhouses.
= 4.5 doll houses.
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Determine whether or not the given value is a solution for the equation. Answer Yes or No
y/12=2;y=24
Can someone please help me out or give me the answers please
Answer:
Example:
X = the first point, so say the point was 2, and the equation for y was, Y=2x +1, you would do 2x2=4 and then 4+1+5 so, for point y it would be, Y=5.
I don't know if that makes sense but yeah.
To gather information on customer satisfaction, a researcher randomly selects four store locations and interviews all the customers at those selected stores. This sampling technique is called:
Answer:
This sampling technique is called cluster
Step-by-step explanation:
Samples may be classified as:
Convenient: Sample drawn from a conveniently available pool.
Random: Basically, put all the options into a hat and drawn some of them.
Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.
Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.
In this question:
The population is divided into groups(by stores), and all elements of the groups(all customers at the stores are sampled), which is the characteristic of a cluster sampling.
Which value, when placed in the box, would result in a system of equations with infinitely many solutions?
y = 2x – 5
2y – 4x =
–10
–5
5
10
Answer:
the answer is -10 (A)
Step-by-step explanation:
got it right on edg 2021
The value that would result in a system of equations with infinitely many solutions is -10
How to determine the value?The system of equations is given as:
y = 2x – 5
2y – 4x =
Complete the blank using h.
So, we have:
2y – 4x = h
Make y the subject
2y = 4x + h
Divide through by 2
y = 2x + h/2
By comparing y = 2x + h/2 and y = 2x – 5, we have:
h/2 = -5
Multiply by 2
h = -10
Hence, the value is -10
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For my
mom's new exercise program, every two days she jogs two miles and every 5 days lifts
weights. On what day will she jog and lift weights on the same day?
Answer:
She will jog and lift weights on the same day in 10 days
Step-by-step explanation:
To find when two events will happen on the same day, we find the least common multiple(that is not 0) of their frequencies.
In this question:
Every two days she jogs
Every 5 days she lifts.
Multiples of 2: {0, 2, 4, 6, 8, 10, 12, ...}
Multipled of 5: {0, 5, 10, 15, ...}
The least common multiple is 10, so:
She will jog and lift weights on the same day in 10 days
Pls help I’m putting 15 points please please please
Answer:
9 yards 1 foot 2 inches
Step-by-step explanation:
90inches=2.5 yards
3.5 yards
10.5 ft=3.5 feet
2.5+3.5=6 yards
6+3.5 ft=9.5 yards
9 yards 1 foot 2 inches
took me forever to write this
Answer:
342 inches, 28.5 feet, 9.5 yards.
Step-by-step explanation:
The conversion rates you need to know are as follows:
1 foot = 12 inches
1 yard = 3 feet
Because there are 3 feet in a yard, we know that there must be are 36 inches in a yard. First, we find how many inches are in 10.5 feet and 3.5 yards. This would be 10.5 * 12 resulting in 126 inches. Also, 3.5 yards as we know is 36 inches so we do 3.5 * 36 which results again in 126. Finding the sum (126 + 126 + 90) we can see that this ribbon is 342 inches long. To find feet we divide this by 12. To find yards, we divide it by 36.
Jocelyn invested $390 in an account paying an interest rate of 2.7%
compounded daily. Assuming no deposits or withdrawals are made,
how much money, to the nearest cent, would be in the account after 18
years?
Answer:
There will be $634.05 in the account.
Step-by-step explanation:
Compound interest:
The compound interest formula is given by:
[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]
Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.
$390 in an account paying an interest rate of 2.7% compounded daily.
This means that [tex]P = 390, r = 0.027, n = 365[/tex]
Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 18 years?
This is A(18). So
[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]
[tex]A(18) = 390(1 + \frac{0.027}{365})^{365*18}[/tex]
[tex]A(18) = 634.05[/tex]
There will be $634.05 in the account.
A line is drawn through the points $(-2, 6)$ and $(-4, -2)$. What is the $y$-coordinate of the point where this line intersects the $y$-axis?
Answer:
This line intersects the y-axis at [tex]y = 14[/tex]
Step-by-step explanation:
The equation of a line has the following format:
[tex]y = mx + b[/tex]
In which m is the slope and b is the y-intercept(point where the line intersects the y-axis).
To find the slope, we take two points, and the slope is given by the change in y divided by the change in x.
In this question:
Points (-2,6) and (-4,-2). So
Change in y: -2 - 6 = -8
Change in x: -4 -(-2) = -4 + 2 = -2
Slope: [tex]m = \frac{-8}{-2} = 4[/tex]
So [tex]y = 4x + b[/tex]
Now, we take a point, and find b.
Point (-2,6), which means that when [tex]x = -2, y = 6[/tex]. So
[tex]y = 4x + b[/tex]
[tex]6 = 4(-2) + b[/tex]
[tex]b = 14[/tex]
So this line intersects the y-axis at [tex]y = 14[/tex]
Which one is a function please help!!!!
Answer:
the 2nd
Step-by-step explanation:
Use the LCD to rewrite
3/4 5/8 1/10
with the same denominator.
A family of 4 is buying cell phones. Each phone costs x dollars if the family buys the super plan which costs $89 for
each family member. The total cost for each family member to have a phone with the super plan is $1,952
Part A
Which equation represents this situation?
O4(2 + 89) = 1,952
O (x + 89) + 4 = 1,952
4x + 89 = 1,952
O 4x(89) = 1,952
Part B
What is the cost, in dollars, of each phone?
Each phone costs $
Ya
Answer: See explanation
Step-by-step explanation:.
From the question, the equation to illustrate the above question will be:
4(x + 89) = 1952
We can then solve further to get the value of x which will be:
4x + 356 = 1952
4x = 1952 - 356
4x = 1596
x = 1596/4
x = 399
Each phone cost $399
A farm has 6 chickens, 4 ducks, 2 pigs and 4 cows. If an animal is chosen at random, find P(Cow | 2 legs)
The conditional probability P(Cow | 2 legs) is 0.
We have,
To find the conditional probability of selecting a cow given that the animal has 2 legs, we need to determine the number of 2-legged animals and the number of cows with 2 legs.
From the given information, we know that cows have 4 legs.
The probability of selecting a cow with 2 legs is 0, since cows do not have 2 legs.
Thus,
The conditional probability P(Cow | 2 legs) is 0.
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Out of 28 cookies,
are chocolate chip. How many cookies are chocolate chip?
Plssss
The standard form of a linear equation is given by
Answer:
standard form of linear equation is ax^2+bx+c
HELPPPPP MEEEE PLEASE
Answer: -6 i think
Step-by-step explanation:
Answer: -6
Step-by-step explanation: dont forget to mark me as brainlisit
Tyion has 4,000 dollars and wants to share it evenly with 19 friends. How much would they each receive?
Answer:
Each friend will receive 210.5 dollars.
Step-by-step explanation:
Total Amount Tyion has = 4,000 dollars
He wants to share evenly with 19 friends.
We need to find How much would amount each friend will receive.
We can found it by using formula:
Amount each friend received = Total Amount / Number of friends
Putting values in the formula and finding results:
Amount each friend received = 4000/19
Amount each friend received = 210.5 dollars
So, each friend will receive 210.5 dollars.
Select the correct answer. What is the solution to this equation?
324=4(3)2x
a. x=8
b. x=4
c. x=2
d. x = 1
Answer
C. x=2
Step-by-step explanation:
This is due to 2(2) = 4
then 3^4=81
81*4=324
The solution to equation [tex]324=4(3)^{2x}[/tex] is x = 2.
What is exponential function?An exponential function is a mathematical function of the following form:
[tex]f(x) = a^{x}[/tex]. where x is a variable, and a is a constant called the base of the function.
Given exponential equation
[tex]324=4(3)^{2x}[/tex]
[tex]4(3)^{2x}=324[/tex]
[tex]3^{2x} =\frac{324}{4}[/tex]
[tex]3^{2x}=81[/tex]
[tex]3^{2x}=3^{4}[/tex]
When bases are equal, power should be equal.
2x = 4
x = 2
Hence, the solution to equation [tex]324=4(3)^{2x}[/tex] is x = 2.
Option C is correct.
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A boy walks at a speed of 4 km/hr. How much time does he take to walk a distance of 20 km?
Answer:
It takes 5 hours
Step-by-step explanation:
Time=distance/speed/rate
Time=20km/4km/hr
Time= 5hours
I came here to practice some questions for my PSAT test upcoming.
Answer:
Your doing a practice SAT test... thats nice I have already done that and the practice ACT testing... im only 13 :)
Princeton here i come! :D
Step-by-step explanation:
A computer’s random number generator produces random integers from 1 to 50. What is the probability that the first 3 integers generated are single-digit numbers?
0.0058
0.0080
0.5120
0.5514
Answer:
0.0058
Step-by-step explanation:
Probability is defined as the ratio of the possible outcome to the total outcome. The number of single-digit numbers between 1 and 50 is 9 ( from 1 to 9). As such, the probability of generating a single digit integer is
P(single) = 9/50
The probability that the first 3 integers generated are single-digit numbers
= 9/50 * 9/50 * 9/50
= 0.18 * 0.18 * 0.18
= 0.005832
This may be approximated to 0.0058
I need help please. I will give Brainiest for correct answer with explanation. If you a picture of the answer being that on the test I will give Brainiest and five stars.
Answer: it’s the one you already but the orange dot on
Step-by-step explanation:
Answer:
Its C.
Step-by-step explanation:
Using mental math you can do 1/4th= 25
and 25*4 is 100. so henceforth its C.
Find angle 1, if angle 2 = 56 and m LJKL = 145
Answer: NEED PICTURE TO ANSWER, we dont know if it a square or if its a rectangle, sry
Step-by-step explanation:
Alina, Robert, and Makayla are on the student council at their high school.
They all want to go to a dinner where student council representatives from
other schools will participate. However, only one student per school can go.
How can a fair decision be made about who goes to the dinner?
Select all that apply.
A. Roll a number cube. If it lands on 1 or 3, Alina wins. If it lands on 2
or 4, Robert wins. If it lands on 5 or 6, Makayla wins.
B. Write each student's name on a slip of paper and put the slips in a
bag. Randomly draw a slip of paper. The student whose name is
on the paper wins.
C. Roll a number cube. the number is even, Alina wins. If the
number is 1 or 3, Robert wins. If it's any other number, Makayla
wins.
D. Flip a coin twice. If both tosses are heads, Alina wins. If both are
tails, Makayla wins. If one is heads and one is tails, Robert wins.
Answer:
B. Write each student's name on a slip of paper and put the slips in a bag. Randomly draw a slip of paper. The student whose name is on the paper wins
Answer:
A. Roll a number cube. If it lands on 1 or 3, Alina wins. If it lands on 2 or 4, Robert wins. If it lands on 5 or 6, Makayla wins.
B. Write each student's name on a slip of paper and put the slips in a
bag. Randomly draw a slip of paper. The student whose name is
on the paper wins.
Step-by-step explanation:
4x +4< 9x +8 Reduce any fraction to the lowest term don’t know your number and don’t use mixed fraction
Answer:
x < - 4/5
Step-by-step explanation:
Given the inequality:
4x +4< 9x +8
Collect like terms :
4x - 9x < 8 - 4
-5x < 4
Divide both sides by - 5
-5x / - 5 < 4 / - 5
x < - 4/5
Find the perimeter of the trapezoid.
is y=-2/7x a proportional
What is 32.08 as a percent and a fraction?
Answer:
32.08% = 401/1250
Step-by-step explanation:
12p+ 15 - 13 - 12p
And show me how you got the answer
Answer:
2
Step-by-step explanation:
According to me, you would just have to combine like terms and simplify them as much as possible.
12p + 15 - 13 - 12p
12p - 12p + 15 - 13
0 + 15 - 13
0 + 2
2
Hope this helps :D
katie can build three staircases to make 36 obstacles against the other player. how many staircases will she need to make 24 obstacles?
Answer:
2 staircases
Step-by-step explanation:
3 : 36
1 : 12
2 : 24
If katie can build three staircases to make 36 obstacles against the other player. Then 2 staircases will she need to make 24 obstacles
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Given,
katie can build three staircases to make 36 obstacles against the other player
We need to find the number of staircases she need to make 24 obstacles.
Let us form a proportional relationship.
Consider x as the number of staircases will she need to make 24 obstacles
3/36=x/24
Apply cross multiplication
3×24=36x
72=36x
Divide both sides by 36
x=2
Hence Katie should have 2 staircases to make 24 obstacles.
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Find the measure of angle M
Only real answers, please
See image
Answer:
136°Step-by-step explanation:
Since the trapezoid is isosceles, the angles J and M are supplementary and angles M and L are congruent, therefore:
∠J + ∠M = 180°∠J + ∠L = 180°7x + 2 + 25x - 14 = 180°32x = 192x = 192/32x = 6∠M = ∠L = 25*6 - 14° = 150° - 14° = 136°
Answer:
From the given figure we can see that :---
JK||ML, JK=ML and JM=KL
Therefore,
angle J+ angle L = 180°
[tex](7x + 2) + (25x - 14) = 180 \\ 32x - 12 = 180 \\ 32x = 192 \\ \boxed{x = 6}[/tex]
Now, we know that, angle M = angle L
Hence,
[tex]25x - 14 \\ =( 25 \times 6) - 14 \\ =150 - 14 \\ = \boxed{136}[/tex]
Angle M is 136°.