Answer:
the answer is b
Step-by-step explanation:
12:
Step-by-step explanation:
Please answer the math question
Answer:
A does not represent a function
Alysha’s average speed when walking home from the market was 5 mph, and it takes her 21 minutes longer than when she drives to the market. If she drives along the same route, at an average speed that is 8 times her average walking speed, how many minutes does it take her to drive home from the market?
9514 1404 393
Answer:
3 minutes
Step-by-step explanation:
Let x represent Alysha's time to drive home from the market.
Speed and time are inversely proportional to each other (for the same distance), so we have ...
(walking speed)(walking time) = (driving speed)(driving time)
5(x +21) = (8·5)(x)
x +21 = 8x . . . . . . . . . divide by 5
21 = 7x . . . . . . . . subtract x
3 = x . . . . . . .divide by 7
It takes Alysha 3 minutes to drive home from the market.
What is 2.75 times 8
Answer:
the answer is 22
you can put it on a calculator
If you were going to solve -3(x + 5) = 27, what is the first step that you would do? Why did you start there?
Answer:
Step-by-step explanation:
Multiply -3 for x and for 5
-3x-15=27
When you have this type of equation the first thing you do is take off the parentesis
Then you pass the 15 to the other side and you get -3x= 27 +15 . After that you divide that for -3 and you get the x . In this case x= -14
Sorry if the english is bad, i hope this helps
What is the difference between a system of equations and a system of inequalities?
Expressions can be expressed as equations or as inequalities.
The difference is that the variables in a system of equation have one solution each, while in a system of inequalities, the variables have a range of values.
Let the system of equation be:
[tex]\mathbf{ax + by = c}[/tex]
[tex]\mathbf{dx + ey = f}[/tex]
Let the system of inequality be:
[tex]\mathbf{ax + by < c}[/tex]
[tex]\mathbf{dx + ey > f}[/tex]
Both systems can be solved using the same method, such as: graphs, substitution and elimination.
However, the difference is that:
In a system of equation, the variables can have one solution each, while in a system of inequalities, the variables have a range of values.
Read more about system of equations and inequalities at:
https://brainly.com/question/11476486
The length of the two legs of a right triangle are 18 cm and 24 cm.
What is the length of the hypotenuse of the triangle?
O A. 30 cm
OB. 36 cm
OC. 42 cm
D. 48 cm
Answer: 30 cm
Step-by-step explanation: Take note that ^2 means to the second power.
a^2 + b^2 = c^2 (hypotenuse)
18^2 + 24^2 = c^2
324 + 576 = c^2
900 = c^2
To find the length of c you have to find teh square root of 900.
√c^2 = √900
c = 30
The length of the hypotenuse is 30 cm!
Hope this helped!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! I DONT KNOW HOW TO GRAPH SO CAN YOU SHOW ME HOW TO DO IT PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLS DRAW IT
Answer:
(images to help with graph are below)
Step-by-step explanation:
okay! so once you get the hang of this, it is super super easy.
so the y-intercept is a point on that long line going up and down on the graph. it shows where the line intersects the middle!
so here it says that the y-intercept (y-int for short) is 2. so we will simply mark a little point on 2.
now the slope. the slope is -4. this can be written as -4/1. the -4 is on the top so i represents the y values. and the 1 is on the bottom so it represents the x values.
we know that when graphing, x goes from side to side and y goes up and down.
if an x value is positive you move it to the right (forwards), if it is negative you move it to the left (backwards). if a y value is positive you move it upwards, if it is negative you move it downwards. so we want to start graphing with our x.
The x value is 1 (because it is in the bottom of the slope! -4/1!). So we will move one point from the y-int (the point we marked).
Now for the y values. The y value is -4 (again, taken from the -4/1. the top number is the y value). FROM THE PLACE WE LEFT OFF FOR THE X VALUES (we left off at point (1,2) because we moved it one to the right!), we will move 4 points DOWN because it is negative (-4). Mark this place with a dot!
We should now have the points (0,2) and (1,-2) marked with a dot. draw a line through the 2 dots! this is ur finished graph. notice how the line intersects the middle on the y-intercept!! that will always happen.
Lastly, the equation! the formula for slope intercept form is y=mx+b
m is always your slope. b is your y-int. and y and x stay blank (for now. in the future you might use those spots). so simply fill in m and b!
the slope is -4. so m = -4
the y-int is 2. so b = 2
the finished equation should look like this:
y = -4x + 2
I hope this helped !!!
Write the expression-
The quotient of x and 8
Answer:
x ÷ 8
Step-by-step explanation:
Evaluate 9-b9−b9, minus, b when b=8b=8
Answer:
its 1 like actually its 1
Step-by-step explanation:
Which number is the additive inverse of -4
-4 1/4
-1/4
1/4
4 1/4
Answer:
4 1/2 maybe
Step-by-step explanation:
Answer ...
Step-by-step explanation: Cheating on your test I see.
Question 2
Find three consecutive odd integers whose sum is 99.
Answer:
31, 33, 35
Step-by-step explanation:
Let 2n+1 be the first odd number. What will the next one be? Add two:
Let 2n+3 be the next odd number. Again, what is the next one? Add two:
Let 2n+5 be the third odd number.
The sum of those three numbers must be 99. You don't have to have the parenthesis here, but I think they help clarify where everything comes from.
(2n+1) + (2n+3) + (2n+5) = 99
Add like terms, and solve for n:
6n + 9 = 99
6n = 90
n = 15
The three odd numbers we want are:
2(15)+1 = 31
2(15)+3 = 33
2(15)+5 = 35
Double check: 31+33+35 = 99?
Answer:15+84
35+64
79+20
Step-by-step explanation:
I CANNOT DO THIS, PLEASE HELP! :D
Answer:
F = [tex]\frac{k}{d^2}[/tex]
Step-by-step explanation:
The equation of proportionality is
F = k × [tex]\frac{1}{d^2}[/tex] = [tex]\frac{k}{d^2}[/tex] ← k is the constant of proportion
A collect call costs $5.99 to connect plus 99 cents per minute. What is the cost of a 6 minute call?
Answer:
$11.93
Step-by-step explanation:
You can write an equation to represent this scenario, where x is the number of minutes spent on the call and y is the total cost of the call.
[tex]y=0.99x + 5.99[/tex]
Plug in 6 for x:
[tex]y=0.99(6)+5.99[/tex]
Multiply 6 x 0.99, representing the fact it costs 99 cents per each minute spent on the call:
[tex]y=5.94+5.99[/tex]
Add the sum of the $5.99 cost to connect the call, plus the charge ($5.94) for spending six minutes:
[tex]y=11.93[/tex]
Your answer is $11.93!
Elijah walked 6 miles in 3 hours.what was his walking rate in hours per miles?
Answer:
2 Miles per hour
Step-by-step explanation:
velocity (speed) formula is distance/time.
In this case, 6/3=2
Question 1: In January, a puppy weighed 4kg.
Three months later, the same puppy weighed 5kg.
What was the percentage increase in the puppy's weight?
Answer:
sorry bro I didn't understand
Write each percent as a decimal and as a fraction in simplest form. 36. 200% 37. 135% 38. 152% 39. 0.03% 40. 0.45%
Answer:
2.0 , 2/1.
1.35 , 1 7/20.
1.52, 1 13/25
0.0003, 3/10000
0.0045, 9/2000
Step-by-step explanation:
1.35 = 1 35/100 = 1 7/20
1.52 = 1 52/100 = 1 13/25
0.0045 = 45/10000 = 1 9/2000.
Find X. Round to the nearest tenth. x=?°
Answer:
32°
Step-by-step explanation:
sin 75° = x
22 12
0.965925 = x
22 12
22x = 11.5911
x = 0.526
[tex]sin^{-1}[/tex] (.526) = 31.7
Answer:
31.8
Step-by-step explanation:
Fill in the blanks
1.Estimation means finding a number that is_____enough to the_____answer.
2.Second step in converting is writing the conversion as a______.
3.When converting,the original unit should always be put in the_______.
4.Cancel any units that are both in the_______and denominator.
5.Indentifying the desired______is one of the important things you have to consider in solving word problems involving conversion.
Answer:
1.close
2.fraction
3.word
5.nuimarator
if g(x) = -3x +1 fill out the following table of values
Answer:
-3 (-6)+1
18 +1
19
-3 (-2) +1
6 +1
7
-3(0)+1
0+1
1
-3(2) +1
-6 +1
-5
-3(6) +1
-18 +1
-17
Step-by-step explanation:
you plug in the numbers for x into the equation and solve, and that's the value that goes into the box below the number you just plugged in
Which of the following equations passes through the point (-2,-4) and is parallel to the x-axis .
A. X= -2
B. Y= -4
C. X= -4
D. Y= -2
Answer:
the answer to you question is A
CAN SOMEONE HELP ME ON ALL AND THOSE ANSWERS ARE ANSWERS FOR THESE PROBLEMS PLS HELP ME I WILL GIVE BRAINLIST ):
PLEASE HELP I HAVE 10 MINUTES ILL MARK YOU BRAINLIEST
Answer:
There are no questions available in this question.
Step-by-step explanation:
Can somebody plz help answer the missing terms correctly thanks so much!!
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDDD
Answer:
Step-by-step explanation:
your mom
Answer:
9. 5
10. 3
11. 1
12. 7
13. 48
14. 24
15. 9
16. 6
Brainliest...I have to post a few of these cause I forgot to study for this assignment....
Answer:
-1
Step-by-step explanation:
you do 1/1 which is 1. because the line is negative, the answer is -1
Alright y'all I'm doing homework and I don't really know what's this answer
Answer:
25 red flowers
Step-by-step explanation:
red yellow
5 10
5 10
5 10
5 10
5 10
red=5+5+5+5+5=25
if a:b=2:3 b:c=4:5 and c:d=6:7 find a:d
5x-3 =2x+15
Someone pls help for geometry
Answer:
x = 6
Step-by-step explanation:
5x-3 = 2x+15
i) move 2x to the left-hand side and change its sign5x-2x-3 = 15
ii) move -3 to the right-hand side and change its sign5x-2x = 15+3
iii) collect like terms3x = 15+3
iv) add the numbers3x = 18
v) divide both sides of the equation by 3[tex] \frac{3x}{3} = \frac{18}{ 3} [/tex]
[tex]x = 6[/tex]
PLEASE HELP ME
Factor the quadratic equation x2 + 2x – 15 into the following format: (x + a) (x -b)
Answer:
(x+5) (x-3)
Step-by-step explanation:
5 times -3= -15
5 + -3 = 2
What is the distance from Mto N?
Answer:
d
Step-by-step explanation:
the answer is 10 (:
Describe the end behavior of the following exponential function f(x)=3
Answer:
the correct answer would be the 2nd one !! please make me most brainlessly!!!