Answer:
Write a system of equations
Step-by-step explanation:
2x + y = 15
3x - y = 20
5x = 35
x = 7
2(7) + y =15
y = 1
The two missing numbers are x = 7 and y = 1.Let's denote the first missing number as "x" and the second missing number as "y".
From the given information, we can form the following equations:
Equation 1: 2x + y = 15
Equation 2: 3x - y = 20
We can solve this system of equations by elimination or substitution method.
Let's use the elimination method:
Multiply Equation 1 by 3 and Equation 2 by 2 to eliminate the "y" term:
Equation 1: 6x + 3y = 45
Equation 2: 6x - 2y = 40
Subtract Equation 2 from Equation 1:
(6x + 3y) - (6x - 2y) = 45 - 40
Combine like terms:
6x + 3y - 6x + 2y = 5
Simplify:
5y = 5
Divide both sides by 5:
y = 1
Substitute the value of "y" into Equation 1:
2x + 1 = 15
Subtract 1 from both sides:
2x = 14
Divide both sides by 2:
x = 7
Therefore, the two missing numbers are x = 7 and y = 1.
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Solve the following system of equation express answer as a order pair 2x+5y=16 -5x-2y=2
Answer:
7y=11x-2y=2
7y-2y=2-12x
5y=9x
y=9x÷5
y=45ans
Step-by-step explanation:
have a nice day!
To assemble a product you stack 0.10 Inch of foam, 1/4 Inch ofmetal, 1/2 inch of wood and 0.1 inch of fabric. How thick is the
stack?
Answer:
3 INCHES THICK
Step-by-step explanation:
A hot air balloon is at an altitude of
100 1/5 yards. The balloon's altitude decreases
by 10 4/5 yards every minute. Determine the
number of minutes it will take the balloon to reach an altitude of 57 yards.
Answer:
It will take 4 minutes for the balloon to reach an altitude of 57 yards.
Step-by-step explanation:
Initial altitude:
100 1/5 yards = 100 + 0.2 = 100.2 yards.
Decrease per minute:
10 4/5 yards = 10 + 0.8 = 10.8 yards.
So, after t minutes, the height of the ballon is given by:
[tex]h(t) = 100.2 - 10.8t[/tex]
Number of minutes it will take the balloon to reach an altitude of 57 yards.
This is t for which [tex]h(t) = 57[/tex]. So
[tex]h(t) = 100.2 - 10.8t[/tex]
[tex]57 = 100.2 - 10.8t[/tex]
[tex]10.8t = 43.2[/tex]
[tex]t = \frac{43.2}{10.8}[/tex]
[tex]t = 4[/tex]
It will take 4 minutes for the balloon to reach an altitude of 57 yards.
The volume of the box is 448 ft'. Find its length and width.
4 ft
X-6
X
The box has a length of
ft and a width of
ft.
What is length and width
Answer:
hi
Step-by-step explanation:
Find an answer to your question The volume of the box is 448 ft'. Find its length and width. 4 ft X-6 X The box has a length of ft and a width of ft.
hope this helps
Researchers doing a study comparing time spent on social media and time spent on studying randomly sampled 200 students at a major university. They found that students in the sample spent an average of 2.3 hours per day on social media and an average of 1.8 hours per day on studying. If all the students at the university in fact spent 2.2 hours per day on studying, with a standard deviation of 2 hours, the sampling distribution of the time spent studying has approximate distribution
Answer:
The sampling distribution of the time spent studying has an approximately normal distribution, with mean 2.2 and standard deviation 0.1414.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Each student:
Mean of 2.2 hours, standard deviation of 2 hours.
Sampling distribution of the time spent studying has approximate distribution
Sample of 200.
By the Central Limit Theorem,
Approximately normal
Mean 2.2
Standard deviation [tex]s = \frac{2}{\sqrt{200}} = 0.1414[/tex]
The sampling distribution of the time spent studying has an approximately normal distribution, with mean 2.2 and standard deviation 0.1414.
Pls help
Find the measurements of those
Answer:
i think C
im not really sure
please help will mark as brainiest
If the points on a graph of a linear function are (-2,10 (0,4) (2,-2) and (4,8) what is the y-intercept
Answer:
i think 5
Step-by-step explanation:
Sounds off topic but I'm feeling sad today, my teacher gave me a project and springboard for homework and I'm crying rn because of how much stress and pressure for me none of my family help me because they don't understand English I wish for positive things love you all <3
Answer:
man i get that- but just try and keep your head up!! you got this!!
Step-by-step explanation:
have cute picture of a cat!!
Things are only hard if you make them, so simply tackle it like the hulk in avengers: age of Ultron! Besides, with as bright of a head as you have on your shoulders, it should be a piece of cake! Also while doing the project, try listening to music. That way, it makes the time pass by and before you know it, your in the teachers room with that A+ project. Anyway, I wish you the best of luck and hope you have a wonderful day! :)
Without factoring, determine which of the graphs represents the function g(x)=21x2+37x+12 and which represents the function h(x)=21x2−37x+12. Explain your reasoning. The graph of represents the function g(x)=21x2+37x+12. The graph of represents the function h(x)=21x2−37x+12. Because c is positive, the constant terms in each factor must have signs. Because the function has a positive value for b, the constant terms in each factor will both be which results in Response area roots, and the graph of Response area has two Response area x-intercepts. Because the function has a negative value for b, the constant terms in each factor will both be which results in Response area roots, and the graph of Response area has two Response area x-intercepts.
Answer:
The graph which represents the function g(x) = 21·x² + 37·x + 12, is described as follows;
Because 'c' is positive, the constant terms in each factor must have the same signs
Because the function has a positive value for 'b', the constant terms in each factor will both be positive which results in negative roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two negative x-intercepts
The graph which represents the function h(x) = 21·x² - 37·x + 12, we have is described as follows;
Because 'c' is positive, the constant terms in each factor must have the same signs
Because the function has a negative value for 'b', the constant terms in each factor will both be negative which results in positive roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two positive x-intercepts
Step-by-step explanation:
The given functions are;
g(x) = 21·x² + 37·x + 12
h(x) = 21·x² - 37·x + 12
For the graph which represents the function g(x) = 21·x² + 37·x + 12, we have
Because 'c' is positive, the constant terms in each factor must have the same signs
Because the function has a positive value for 'b', the constant terms in each factor will both be positive which results in negative roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two negative x-intercepts
For the graph which represents the function h(x) = 21·x² - 37·x + 12, we have
Because 'c' is positive, the constant terms in each factor must have the same signs
Because the function has a negative value for 'b', the constant terms in each factor will both be negative which results in positive roots and the graph of the function, g(x) = 21·x² + 37·x + 12, has two positive x-intercepts
what is the value of the expression below when c=5 and d=4?
6c² -5d + 8
A 48
B 79
C 138
D 888
Step-by-step explanation:
Goal
Evaluate the expression.Given
Expression6c²-5d+8
Conditionc = 5 and d = 4
Step 1
Substitute c = 5 and d = 4 in the expression.6(5)²-5(4)+8
6(25)-20+8
Step 2
Evaluate the expression.150-20+8
150-12
138
Hence, the solution is 138.
Answer:
138 is answer please give brainliest
If 3/5 of a bag of jelly beans weighs 6 3/4 ounces , how much does one bag of jelly beans weigh?
Help me plz!!!! I need this by today...if right will mark brainliest!
Answer:
i cant read it sideways
Step-by-step explanation:
please answer this correctly,thank you!
Answer:
First option
Step-by-step explanation:
-4,-3,-2,-1
Ramon has 7/8 of a cup of cottage chesse. How many 1/4 cup servings can he make?
pleaseeee help ill give brainliest answer if u dont know dont responddd
Answer:
864 square inches
Step-by-step explanation:
Surface Area = 12 x 12 x 6
Surface Area = 144 x 6 = 864
Hope that helps!
Answer:
864
Step-by-step explanation:
12*12 =144 (the surface of one side
144*6 =864 (the surface of all sides)
please help asap!!!!!!
Answer:
one point will be on (3,2) another on (5,3) and 1 more on (6,6)
Step-by-step explanation: not sure if this is 100% correct or not
Five and nine thousandths as a decimal
Answer:
5.009
Step-by-step explanation:
5.009
/\
1000th
Answer:
5.009 is the ans. did u got it
A beverage manufacturer performs a taste-test and discovers that people like their fizzy beverages best when the radius of the bubbles is about 0.3 mm. According to the formula below, what would be the volume of one of these bubbles? r = root(3, (3V)/(4s))
1/4 divided by 2/5 fraction form
Answer:
5/8.
Hope this helped.
HELP PLEASE I GOT CACA WIFI
Question-
If x = 4 units, y = 8 units, and h = 7 units, find the area of the parallelogram shown above using decomposition.
answer choices-
A. 28 square units
B. 56 square units
C. 84 square units
D. 112 square units
Answer:28
Step-by-step explanation:
hope this helpes
Help asaaaaaap guys
Answer:
-3.5,-3,-2 1/2,-2,2.5
Step-by-step explanation:
Least. Greatest
-3.5, -3, -2 1/2, -2, 2.5
Ms.Gallegos burns 236 calories
what type of angle is this
Answer:
Straight
Step-by-step explanation:
If the angle is flat or 180 degrees, it is straight
If the angle is like an L or 90 degrees, it is right
If the angle is less than 90 degrees, it is acute
If the angle is more than 90 degrees, it is obtuse
Hope this helps!!
Answer:
IT is a straight angle because it is 180 degrees
Step-by-step explanation:
A rectangle has an area 12cm². If the length of the rectangle is ( x + 1 )cm and the width is x cm, find the possible value(s) of x . Show the working please thank you
Answer:
x can be 3 or (-4) because
area of a rectangle= length × breadth
12=x×(x+1)
12=x^2+x
x^2+x-12=0
x^2 +4x-3x-12=0
x(x+4)- 3(x+4)=0
(x+4)(x-3)=0
(x+4)=0 or (x-3)=0
Therefore, x=(-4) or 3
Since, the dimensions of a rectangle cannot be negative, x=3.
Therefore, the width of a rectangle(x)=3 cm,
the length of a rectangle(x+1)=(3+1)=4 cm
Pls mark me as the brainliest.
(You must show equality properties in work so I can earn full credit)
Solve the equation. Enter your answer in the box.
x=³√27
x = _____
Answer:
The cube root of 27 is 3
IUAIUBSHELP PLEASEEA machine in a shoe factory produces shoelaces. The number of shoelaces it produces is proportional to the time. It can produce twelve shoelaces in three minutes. Write an equation to represent this proportional relationship. In your answer, make sure to define the variables you used.
Answer:
E- don't report this one-
Step-by-step explanation:
x
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The probability of drawing a blue ball from Bag A is 1/5 and the
probability of drawing a red ball from Bag B is 2/3.
What is the probability of drawing a blue ball from Bag A AND a red
ball from Bag B?
Answer:
the probability of drawing a blue ball from bag A is 1/5 and the probability of drawing a red ball from bag B is 2/3.
The probability of drawing a blue ball from Bag A and a red ball from Bag B will be 2/15.
What is the definition of probability?
Probability denotes the likelihood of something happening. It is concerned with the occurrence of an unpredicted event.
Probability can only have a value between 0 and 1. Its simple notion is that something will most likely occur. The favorable event's proportion to the overall number of events is known as the favorable event ratio.
The probability of drawing a blue ball from Bag A is, 1/5
The probability of drawing a red ball from Bag B is, 2/3.
P(A)=1/5
P(B)=2/3
The probability of drawing a blue ball from Bag A and a red ball from Bag B will be;
P(A and B)=P(A). P(B)
P(A and B)=(1/5)×(2/3)
P(A and B)=(2/15)
Hence,the probability of drawing a blue ball from Bag A and a red ball from Bag B will be 2/15.
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The first step in analyzing a transaction is to determine:
O A. if the account balance will increase or decrease.
OB. the accounts that are involved.
O C. the type of accounts that are involved.
OD. which accounts are to be debited and credited.
Answer:
B. the accounts that are involved.
Step-by-step explanation:
Financial accounting is an accounting technique used for analyzing, summarizing and reporting of financial transactions like sales costs, purchase costs, payables and receivables of an organization using standard financial guidelines such as Generally Accepted Accounting Principles (GAAP). Examples of financial statements includes Balance sheet, cash-flow and income statement.
On the other hand, managerial accounting also known as cost accounting is an accounting technique focused on identification, measurement, analyzing, interpretation, and communication of financial information to managers for better decisions making and pursuit of the organization's goals.
The first step in analyzing a transaction is to determine the accounts that are involved. Since a company would have more than one transaction type, it is very important to determine what account is involved in the transaction process such as sales, purchase of inventory, payment of employee salaries and other types of expenses.
Please help me you don't have to show your work just pls tell me the answer
Answer:
A
Step-by-step explanation:
8 pink : 7 orange