Answer:
A number plus seven times itself equals 1200.
Step-by-step explanation:
The number is "x", and 7 times itself is 7 "x". When one adds the two, they get 1200. Hence it models the situation;
x + 7x = 1200.
Answer:
Step-by-step explanation:
marc has x amount of money. His mom offers to give him seven times his money as a Christmas gift. when he combined, his starting money and what his mom gives him, it added up to $1200. What was marc’s starting money (x)
what is the maximum or minimum of F(x)=|x-3|+3
is this mapping a function or not a function ¿ i’ll mark brainlist
Answer:
Not a function
Step-by-step explanation:
If it is a function, every input has only one output. Meaning if we graph it, it will pass the vertical line test.
If you want to think about it in x and y, all values of x can only correspond to one value of y.
In this case, we can see that the x-value 6 has 2 corresponding y-values (5 and 10), therefore, this mapping is not a function.
Morristown City Cafe recently introduced a new flavor of coffee. They served 24 grande cups and 51 jumbo cups of the new coffee today, which equaled a total of 1,506 ounces. The day before, 26 grande cups and 66 jumbo cups were served, which used a total of 1,868 ounces. How much coffee is required to make each size?
An air traffic controller is tracking two planes. To start, Plane A is at an altitude of 790 meters , and plane B was at an altitude of 1142 meters. Plane A losing altitude at 14 meters per second, and Plane B is losing altitude at 22 meters per second
Answer:
[tex]x=4.375[/tex]
Step-by-step explanation
From the question we are told
Plane A starts at altitude 790
Plane B starts at altitude 1142
Plane A losing altitude at 14 meters per second
Plane B is losing altitude at 22 meters per second
Generally the altitude of both plane is given by
Plane A= [tex]790-14x[/tex]
Plane B=[tex]1142-22x[/tex]
Therefore when they exist in the same altitude
[tex]790-14x[/tex] =[tex]1142-22x[/tex]
[tex]-350=-8x[/tex]
[tex]\frac{-350}{-8} =x[/tex]
Therefore
[tex]x=4.375[/tex]
Oliver is trying to solve the following equation by completing the square.
x2−32x+31=0
Here are the steps Oliver used to complete the square.
Original equation: Line 1: Line 2: Line 3: Line 4: Line 5: Line 6: x2−32x+31x2−32xx2−32x+32(x−16)2(x−16)2−−−−−−−−√x−16x=======0−31−31+3211–√±115 and x=17
Oliver did not get the correct solutions.
Which line contains Oliver's first mistake?
Answer:
line 2
Step-by-step explanation:
I do primavera and got it right
Can the triangles be proven similar and how please.
Answer:
by basic proportionality theorem( Thales theorem)
8/20.8=9/23.4
0.3846153846153=0.384615384615
so by sss similarity both traingles are similar
Step-by-step explanation:
hope it helps
Which triangle congruency theorem can b used to prove the triangles are congruent??
Answer:
SSS
SAS
ASA
RHS
AAS COROLLARY
Solve the equation for all real solutions in simplest form.
z^2 - 12z +9= -3
Answer:
Solving the equation for all real solutions in simplest form.
[tex]z^2 - 12z +9= -3[/tex] we get [tex]\mathbf{z=10.9\: or\: z=1.1}[/tex]
Step-by-step explanation:
We need to solve the equation for all real solutions in simplest form.
[tex]z^2 - 12z +9= -3[/tex]
First simplifying the equation:
[tex]z^2 - 12z +9+3= -3+3\\z^2 - 12z +12= 0[/tex]
Now, we can solve the equation using quadratic formula:
[tex]z=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
we have a = 1, b=-12 and c=12
Putting values in formula and finding values of x
[tex]z=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\z=\frac{-(-12)\pm\sqrt{(-12)^2-4(1)(12)}}{2(1)}\\z=\frac{12\pm\sqrt{144-48}}{2}\\z=\frac{12\pm\sqrt{96}}{2}\\z=\frac{12\pm9.8}{2}\\z=\frac{12+9.8}{2}\:or\:z=\frac{12-9.8}{2}\\z=10.9\:or\:z=1.1[/tex]
So, we get value of z: z=10.9 or z=1.1
Solving the equation for all real solutions in simplest form.
[tex]z^2 - 12z +9= -3[/tex] we get [tex]\mathbf{z=10.9\: or\: z=1.1}[/tex]
Can u solve
2x+13=-7x+28
Answer:
Step-by-step explanation:
2x+13=-7x+28 =
Solutions:
x = 15
9
≈ 1.666667
Answer: x= 5/3
Step-by-step explanation:
subtract 13 from both sides of the equation
2x+13=-7x+28
2x+13-13=7x+28-13
simplify
subtract the numbers
2x=-7x+15
add 7x to both sides of the equation
2x+7x=-7x+15+7x
simplify
9x=15
divide
9x/9 = 15/9
simplify
Cancel terms that are in both the numerator and denominator
divide the numbers
x=5/3
Melissa sold 18 raffle tickets for the school fundraiser. Jonah sold half as many tickets as Melissa. Shona sold 1 1/2 times as many tickets as Melissa. If each ticket cost 6$, how much total money did the students raise. Please I need help quickly!
Answer:
$324
Step-by-step explanation:
Find how many tickets Jonah sold:
18/2
= 9
Find how many Shona sold:
18(1.5)
= 27
Find the total number of tickets they sold:
18 + 9 + 27
= 54
Find the total amount of money raised:
54(6)
= 324
So, they raised $324 in total
PLEASE HELP!!! Put y=-9(x+1)(x-7) in standard form. Please show work too.
Answer:
Sorry that there's no work to show
Step-by-step explanation:
Answer:
y = [tex]-9x^2 + 54x + 63[/tex]
Step-by-step explanation:
An equation in standard form is;
[tex]y = ax^2 + bx + c[/tex]
y = -9( x + 1 ) ( x - 7 )
Distribute. multiply every term by another, and combine like terms;
y = -9 ( [tex]x^2 - 6x - 7[/tex] )
y = [tex]-9x^2 + 54x + 63[/tex]
help me please due today!
Answer:
No
Yes
No
Yes
Step-by-step explanation:
In the first 1, the input 2 repeats which makes it not a function
in the second one each input is unique and does not repeat so it is a function
in the third one the input 1 repeats and makes it not repeat
And in the last one each input is unique
If inputs (the x value) repeat it's not a function
Please help :( im struggling
Answer:
a= 9/4
Step-by-step explanation:
2m^(5/2)/m^(1/4)
2m^(5/2 -1/4)
2m^(9/4)
Hope you find this helpful <3
HELP HELP PLS!!! 9th Grade Math!!! WILL MARK BRAINLIST!!!
Answer:
x=9
Step-by-step explanation:
These angles are equal to each other because they are alternate exterior angles. Thus, we can solve the for the value of x by creating the equation
6x+5=7x-4
From here, we solve it like a normal algebraic equation, isolating the variables and making sure it is on the same side of the other. From there we subtract 7x from both sides, and subtract 5 from both sides, leaving -x = -4-5. Summing up -4-5, we get -x=-9. Now we make them positive on both sides, leaving the answer that x = 9
A deck of cards has 52 cards. There are 4 suits, diamonds, hearts, clubs and spades. Each suit has 13 cards. What is the probability that I will randomly pick a 2, put it back, then randomly pick a 4?
Answer: 2%, ROUNDED
Step-by-step explanation:
You must divide 100 (whole percent) by 52 (Cards in a Deck) and you will get 1.92307692308%. But if we round it, we get 2%.
So the answer is 2%.
An airplane ascended into the sky to a steady altitude of 35000 feet. The same plane descended to a steady altitude of 32000 feet. How many feet did the airplane descend
Answer:
3000 feets
Step-by-step explanation:
Given that :
Initial Ascent to steady altitude = 35,000 feets
Descent to steady altitude = 32,000 feets
Number of feets the plane descend :
(Initial ascent to steady altitude - descent to steady altitude)
(35000 - 32000) feets = 3,000 feets
can someone please help me with 13? there’s only two options you can see them in the picture
Answer:
The value of x is 5.8
Step-by-step explanation:
Here. we want to find the value of x
To do this, we need the appropriate trigonometric identity
As we can see 10 is the opposite as it faces the side given
x is the adjacent
The trigonometric identity relating opposite and adjacent is tan . Tan is the ratio of the opposite to the adjacent
Thus, mathematically;
Tan 60 = 10/x
x = 10/tan 60
x = 5.8
6 people can fit in 1 van. Some buses can hold 30 people. How many vans are needed to hold 240 people?
Answer:
40 vans
Step-by-step explanation:
If 6 people can fit in 1 van, 240 people would fit in 240 / 6 = 40 vans
How do I solve this? PLEASE HELP TIME LIMIT
im not sure how to explain it, but i know its b
1. What is the initial balance in the account?
2. Is the account growing by the same number of dollars each year? Explain how you know.
3. A second investment account starts with $2,000 and grows by $150 each year.
4. How does the growth of balances in the two account balances compare?
Answer:
The opening balance is the amount of funds in a company's account at the beginning of a new financial period. It is the first entry in the accounts, either when a company is first starting up its accounts or after a year-end.
The initial balance in the account was approximately $4215.
How to find the initial balance in the account?The formula represents the relationship between the initial balance, the interest rate, the compounding period, and the time period.
To determine the initial balance in the account, we can use the formula for compound interest:
A = P(1 + r)ⁿ
where:
A = the ending balance
P = the initial balance
r = the annual interest rate as a decimal (5% = 0.05)
t = the number of years
Substituting the given values, we get:
[tex]5000 = P(1 + 0.05)^{(3.5)}[/tex]
[tex]5000 = P(1.05)^{(3.5)}[/tex]
Dividing both sides by [tex](1.05)^{(3.5)}[/tex], we get:
[tex]P = 5000/(1.05)^{(3.5)}[/tex]
Using a calculator, we get:
P ≈ $4215
Therefore, the initial balance in the account was approximately $4215.
To learn more about the interest click here:
brainly.com/question/13324776
#SPJ2
The question seems incomplete, the correct question would be as:
An account with an ending balance of $5000 earns 5% interest for 3.5 years. What is the initial balance in the account?
if g(x) =x -7, what if the value of x when g(x) =6
Answer:
x=13
Step-by-step explanation:
1. Place 6 in
6=x-7
2. Evaluate
x=6+7
x=13
Barry’s Bagel Emporium sells a dozen bagels for $5.00. This price is no longer high enough to create a profit. The owner decides to raise the price. He does not want to alarm his customers with too large of an increase. He is considering four different plans.
Plan A: Raise the price by $0.05 each week until the price reaches $8.00.
Plan B: Raise the price by 10 percent each week until the price reaches $8.00.
Plan C: Raise the price by the same amount each week for 6 weeks, so that in the sixth week the price is $8.00.
Plan D: Raise the price by $0.25 each week until the price reaches $8.00.
Which plan will result in the price of the bagels reaching $8.00 fastest?
plan A
plan B
plan C
plan D
Answer:
Plan C will be the fastest - it will take 10 weeks
Step-by-step explanation:
Plan A will take 60 weeks
Plan B will take the longest 104 weeks
Plan D will be the fastest - it will take 12 weeks
(Please help I’ll give you brainlist)
A stock on the New York Stock Exchange opened at $52 on Monday morning. The table shows the change in the value of the stock for each day that week. What was the stock worth at the close of business on Friday?
Answer:
New york
Step-by-step explanation:
Energy. There's no other city on the planet with an energy that can compete with New York. The fast pace, the buzzing traffic, the hustle and bustle of the people, the 24-hour life, and the creative spirit make NYC one of the most vibrant places in the world.rent people than we were 365 days ago.
Which function is best represented by this graph
Answer:the potato is ugly
Step-by-step explanation:because it has marks
What is the solution to the equation below? 4(3x + 5) = 5(x + 4) + 7x A infinite solutions OB no solution 0 со D 3
Answer:
Step-by-step explanation:
here you go mate
step 1
4(3x+5)=5(x+4)+7x equation
step 2
4(3x+5)=5(x+4)+7x simplify by distributing
12x+20=12x+20
step 3
12x+20=12x+20 subtract 12x
20=20
step 4
20=20 Divide
0=0
answer
all are real numbers
PLEASE HELP ASAP. LOOK AT THE PICTURE AND SOLVE.
Answer:
angle C,D,A
Step-by-step explanation:
isnt it just finding a right angle?
The length of a rectangle is 1 7/9 in and its width is 3/4 of its length. Find the area of this rectangle
Given:
Length of the rectangle = 1 7/9 = 17/9.Width = 3/4 × length = 3/4 × 17/9 = 17/12.To find: The area of the rectangle.
Answer:
Formula to find the area of a rectangle = Length × Breadth.
Since we've calculated the length and breadth, let's substitute them directly.
17/9 × 17/12 = 289/108 = 2.67 [approx.]
Therefore, the area of the rectangle is 2.67 units.
Hope it helps. :)
The image below show the construction of a _______
Answer:
For Angles it is parallel angles on parallel lines are the same
Step-by-step explanation:
Two friends,7 miles apart, start walking towards each other,and they meet in an hour. If one boy walks 1 mile farther in an hour than the other boy,how fast does each walk?
Answer:
the boy that walked farther walks a mile every 15 mins and the one other one walks one mile every 20 mins
Step-by-step explanation:
4 times 15 is 60 hour 3 times 20 is 30 one hour
Answer:
4 miles and 3 miles
Step-by-step explanation: