The value of f(7) is -4 for the function f(x) = 10-2x. option A is correct.-
The given function is f(x)=10-2x.
In the equation, the x represents the variable.
We have to find the value of f(7).
To find the value of f(7), we need to replace x as the value 7.
Plug in x as 7 in the function:
f(7)=10-2(7)
Solve the above equation:
f(7)=10-14
When 14 is subtracted from 10, we get -4.
f(7)=-4
Hence, the value of f(7) is -4 for the function f(x)= 10-2x.
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Find the slope of the line.
Answer:
The slop in the line is 3
Step-by-step explanation:
Answer:
-2 I think this is the answer hope it helps
Step-by-step explanation:
What equation is a proportion?
A. 1/3 = 1/4
B. 3/4 = 6/9
C. 5/8= 20/32
D 7/9 = 21/28
Answer:
c. 5/8= 20/32
Step-by-step explanation:
because 5*4=20 and 8*4=32
ten less than four times a number is 50
the equation is -----the solution is ------
Answer:
2.5
Step-by-step explanation:
50÷4-10
50=(4x)-10
Equation:
(4*n)=50
Solution:
(4*n)-10=50
(4*n)-10-10=50-10
(4*n)=40
4*10=40
n=40
Kate's math homework had a set of equations and a one-word problem. She took 3 minutes to solve each equation, then 7 minutes to solve the word problem if it took her 52 minutes total, how many equations did she solve
Answer:
15 equations
Step-by-step explanation:
Let
Number of equations in the homework = x
There is only a one-word problem
y = amount of time used to solve the word problem
She took 3 minutes to solve each equation, then 7 minutes to solve the word problem if it took her 52 minutes total,
Total = 3x + y
52 = 3x + 7
Subtract 7 from both sides
52 - 7 = 3x + 7 - 7
45 = 3x
Divide both sides by 3
x = 45 / 3
= 15
x = 15 equations
Therefore, she solved 15 equations
plsssss help im honestly brain dead
Answer:
same but like 123
Step-by-step explanation:
Answer:
the slope represents minutes per miles.
Step-by-step explanation:
the other 3 are wrong
6x=36 whats the answer and how did you get it
Answer:
6x6=36
Step-by-step explanation:
Answer: The answer is 6
Step-by-step explanation:
the way you find the answer is you divide 36 by 6. the reason why is the answer of 36 divided by six is tyhe other number you need to get to 36.
I hope this is not to confusing. Can you please give me branilyest
There were 239 people at Travis Scott concert.Admission to get the drive in concert was $15 for adults and $5.50 for children the total cost was 2759.50 how many adults attended and how many children attended
Answer: There are 152 adults and 87 children.
Step-by-step explanation:
Let x= Number of adults
y= Number of children
As per given, we have
x+y = 239 (i)
15x+5.50y= 2758.50 (ii)
Multiply 5.50 on both sides of (i) , we get
5.50x+5.50y=1314.5 (iii)
Subtract (iii) from (ii), we get
9.5x = 1444
⇒ x = 152
Put value of x in (i) , we get
152+y=239
⇒ y= 239-152
⇒ y= 87
Hence, there are 152 adults and 87 children.
i need the answer pls!!!
Five less than twice the value of a number is equal to three times the quantity of four more than one-half the number. What is the number?
Answer:
2x - 5 = (1/2)
4x - 10 [multiply by 2]
x - 10 = -13 [subtract 3x from both sides]
x = -3 [add 10 to both sides]
Step-by-step explanation:
The required number would be 34 which is determined by the phrase "five less than twice the value of a number is equal to three times the quantity of four more than one-half the number"
What is algebra?Algebra is the analysis of mathematical representations, while logic is the manipulation of those symbols.
When broken down, these sorts of statements are not intimidating. First, consider "five less than twice the value of a number."
"Twice the value of a number" is simply 2x.
"Five less" is simply -5, so for the first part we have (2x-5)
Examine the second section next. "Three times four times more than one half the number."
"Three times the quantity" simply indicates "three times something."
4 + "one half the number" or 4 + (1/2)x is "the quantity of four more than one half the number."
So the second part is simply 3(4+x/2).
Finally, we complete the equation, (2x-5) = 3(4+x/2) and solve for x.
2x-5 = 12 + (3/2)x
2x-(3/2)x = 17
x/2 = 17
x = 34
Therefore, the required number would be 34.
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Kevin has five less than twice the number of baseball caps Steph has. If Kevin has 13 baseball caps, how many baseball caps does Steph have?
Answer:
21
Step-by-step explanation:
13x2=26-5=21 so thats how I got the answer
no one answers with 20 points so here’s 60 points again lol
Answer:
Was B the correct answer?
I thought it was B as well.
A rectangular vegetable patch has a perimeter of 24 meters and an area of 27 square meters. What are the dimensions of the vegetable patch?
Answer:
3 by 9 meters
Step-by-step explanation: (3+9)x2 = 24. 3x9=27
5x10^5+2x10^4+8x10^2
Answer:
52800
Step-by-step explanation:
Answer:
520800
Step-by-step explanation:
ive done this on.
What are the zeros of this function? HELP
Answer:
answer is B
Step-by-step explanation:
10 points
Does any one know of the game with the metal ball and you go around on a play form reaching the check points it is on the iPhone and is 3D but it is a real game, not like a ketchup game.
Answer:
smash hit?
Step-by-step explanation:
Explain how you know when 2 ratios are proportional.
Answer:
Ratios are proportional when they represent the same relationship.
Step-by-step explanation:
Such as: finding equivalent fractions
Answer:
Ratios are proportional if they represent the same relationship.
Step-by-step explanation
One good way to tell is to make them fractions and then reduce them. If the reduced fractions are the same, you ratio is proportional! Good luck !
i need help asap please
Answer:
srry cant help im only in middle school
Step-by-step explanation:
Answer:
x = -2
y =3
Step-by-step explanation:
2x-2=-4 + 5x3=15
-4+15=11
4x-2=-8 3x3=9
-8+9=1
The employer offered to pay you $20 an hour. The employer has also offered a daily commuter allowance of $20 per day to help for you transportation costs. You will be working 8 hours per day , 5 days a week. How much is it?
Answer:
$900
Step-by-step explanation:
Wages paid = $20 per hour
Transport allowance paid = $20 per day
Number of hours worked each day = 8 hours
Number of days worked each week = 5 days
To find:
Total amount paid in one week = ?
Solution:
First of all, let us find the total number of hours worked in one week.
8 hours a day and 5 number of days.
Therefore, total number of hours worked in one week = 8 [tex]\times[/tex] 5 = 40 hours
Total wages paid as per 40 hours = 40 [tex]\times[/tex] 20 = $800
Now, for these 5 days, transport allowances are paid $20 for each day.
Therefore total transport allowance = $20 [tex]\times[/tex] 5 = $100
Total wages paid = Wages as per 40 hours + Transport allowance = $800 + $100 = $900
the shapes below are mathematically simillar
Answer:
6
Step-by-step explanation:
What is the equation of the line in slope-intercept form? Please help thank you
Answer:
y = -5/4x + 5
Step-by-step explanation:
the slope is down 5 over 4 and it crosses the y-axis at 5
The price of a computer was decreased by 7% to £500. What was the price before the decrease? Give your answer to the nearest penny.
Answer:
537.64
Step-by-step explanation:
If the coordinates of point E are (-4, y), what is the value
of y?
O -8
O -4
O0
O8
The value of y is -8
What is slope of the line?"The slope of tee line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]"
What is y-intercept?"The point at which the graph intersects the Y-axis."
What is slope intercept form of the line?"y = mx + c, where m is the slope of the line and c is the Y-intercept."
For given question,
We have been given the graph of a line.
From the graph, we can observe that the line is passing through the points (4, 4) and (-6, 0)
Using slope formula the slope of the line would be,
[tex]\Rightarrow m=\frac{4-(-6)}{4-0}\\\\\Rightarrow m=\frac{10}{4}\\\\\Rightarrow m=\frac{5}{2}[/tex]
Also, the line intersects y-axis at y = 2
This means the y-intercept is c = 2
Using the slope-intercept form of the line the equation of the line would be,
[tex]y=mx+c\\\\y=\frac{5}{2}x+2[/tex]
Point E(-4, y) lies on the given line.
So, this point satisfies the equation of the line.
[tex]\Rightarrow y=\frac{5}{2}(-4)+2\\\\ \Rightarrow y=-10+2\\\\\Rightarrow y=-8[/tex]
Therefore, the value of y is -8
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(11y + 19) °
8x °
96 °
Answer:
lol 96
Step-by-step explanation:
I have a limited time
Answer:
11
Step-by-step explanation:
PLEASE HURRY
In a local city, the temperature at noon is Negative 3 degrees Celsius. The temperature is expected to decrease by 2.5 degrees Celsius each hour until the temperature reaches Negative 18 degrees Celsius. How many hours will it take for the temperature to reach Negative 18 degrees Celsius? 6 hours 7 hours 7.2 hours 8.4 hours
Answer:
6 hours
Step-by-step explanation:
-3-2.5-2.5-2.5-2.5-2.5-2.5=18
srry if I took too long
Answer:
6 HOURS
Step-by-step explanation:
The correct answer would be 6 hours or A!
Hope this helps! Have a great day! :))
Find an
i expression which represents the difference when (-5x + 4y) is subtracted
from (7x + 9y) in simplest terms.
The required difference when (-5x + 4y) is subtracted from (7x + 9y) in simplest terms is 12x + 5y.
Given that,
To find an expression that represents the difference when (-5x + 4y) is subtracted from (7x + 9y) in simplest terms.
In mathematics, it deals with numbers of operations according to the statements.
What is simplification?The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.
= 7x + 9y - (-5x + 4y)
= 7x +9y + 5x - 4y
= 7x + 5x + 9y -4y
= 12x + 5y
Thus, the required difference when (-5x + 4y) is subtracted from (7x + 9y) in simplest terms is 12x + 5y.
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Can somebody show me the work!
Answer:
(-1,4)
Step-by-step explanation:
First lets put the two equations into y=mx+b format by subtracting 2x and 4x to the right side of their equations.
y=-2x+2
y=-4x+0
Now you can put this into a system of equations, but you can also plug in the coordinates to see if both equations are equal. I will show system of equations solution.
-2x+2=-4x, solve this by adding -2x to the right side so that the 2 is by itself.
Now you have 2=-2x. Divide by -2 to get the x by itself, now you have x=-1. Plug this back into one of the equations, so y=-4x would be y=-4(-1), so y=4.
Answer:
-1,4
hope that helps you
can I get help someone
Answer:
m ≤ 4250
Step-by-step explanation:
What we know:
Mr. Loureiro has to pay $25 plus 10 cents every mile.
The equation becomes 25 + 0.1x = 450
25 + 0.1x = 450
0.1x = 450 - 25
0.1x = 425
x = 4250
So, Mr. Loureiro can travel no more than 4250 mi. (m ≤ 4250)
Please answer correctly !!!!!!!!!!!! Will mark Brianliest pleaseeee !!!!!!!!!
Answer:
For every 7 students in 8th grade, there are 3 students in 6th grade.
I hope I'm right.
what two numbers add up to be 116.5
Answer:
58.25
Step-by-step explanation:
116.5 / 2
= 58.25
Hope this helps!!
58.25+58.25
Those are the two numbers that add up to that number (116.5)
Btw there are also MULTIPLE numbers that add up to 116.5, I'm just putting the one that makes the most sense.
(｡ŏ﹏ŏ)
Miri