What is the missing number in this sequence?
Answer:
13,21,34,55,89,144,233,377
Step-by-step explanation:
i did it in my mind and im correct
prob
Help me out please!!!!!! I’d appreciate it so much (:
Answer:
x = 11/7 y = -1/7
Step-by-step explanation:
2x + y = 3
2x + y - 2y = 3 - 2y
y = 3 - 2x
x - 3(3 - 2x) = 2
x - 9 + 6x = 2
x - 9 + 6x + 9 = 2 + 9
x + 6x = 11
7x = 11
7x / 7 = 11/7
x = 11/7
2(11/7) + y = 3
22/7 + y = 3
22/7 + y - 22/7 = 3 - 22/7
y = -1/7
Answer:
(¹¹⁄₇, -⅐)
Step-by-step explanation:
Given system of equations:
[tex]\begin{cases}2x+y=3&\\x-3y=2\end{cases}[/tex]
What is the elimination method?
The elimination method is when you rewrite the two equations so that when added together, one of the two variables (x or y) is eliminated.
Step 1: Multiply the first equation by [tex]3[/tex].
[tex]\implies (3)2x+(3)y=(3)3[/tex]
[tex]\implies 6x+3y=9[/tex]
Step 2: Add the above equation to the second equation to eliminate 3y.
[tex]\begin{array}{r l}6x+3y & = 9\\+\ x-3y&=2\\\cline{1-2}7x&=11 \end{array}[/tex]
Step 3: Solve for x (by dividing both sides by 7).
[tex]\implies \dfrac{7x}{7}=\dfrac{11}{7}[/tex]
[tex]\implies \boxed{x=\dfrac{11}{7}}[/tex]
Step 4: Substitute ¹¹⁄₇ as the value of [tex]x[/tex] in any of the given equations and solve for [tex]y[/tex].
[tex]\implies 2\left(\dfrac{11}{7}\right)+y=3[/tex]
[tex]\implies \dfrac{22}{7}+y=3[/tex]
Step 5: Convert [tex]3[/tex] into a fraction and subtract ²²⁄₇ from both sides of the equation.
[tex]\implies \dfrac{22}{7}-\dfrac{22}{7}+y=\dfrac{21}{7}-\dfrac{22}{7}[/tex]
[tex]\implies \boxed{y=-\dfrac{1}{7}}[/tex]
The solution to the given system of equations is (¹¹⁄₇, -⅐).
Learn more here:
brainly.com/question/27868564
A copy machine makes 36 copies per minute. How many does it make in 5 minutes and 15 seconds
Answer: 111.75 copies
Step-by-step explanation:
36 x 3 = 108
60/15 = 4
36/4 = 3.75
108 + 3.75 = 111.75
What is the best question to ask before reading the rest of the passage? A. Which study techniques have worked for you in the past? B. Which classes do you do need to study for the most? C. Which time of the day do you feel you learn the best?
Answer:
A
Step-by-step explanation:
The rest of the choices don't make sense.
Answer:
A
Step-by-step explanation:
A because you want to get a thought of what it is
Felicity baby sat 2 hours each night for 10 nights. She earned a total of 180 babysitting. Felicity wants to calculate her hourly rate. How much did Felicity earn per hour babysitting?
Answer:
$9 per hour
Step-by-step explanation:
Total number of hours = hours each night x number of nights
⇒ Total number of hours = 2 x 10 = 20 hours
Hourly rate = total earned ÷ total number of hours
⇒ Hourly rate= 180 ÷ 20 = 9
Therefore, hourly rate = $9 per hour
Answer:
9 dollars per hour
Step-by-step explanation:
First determine the total number of hours
2 hours * 10 nights = 20 total hours
Divide the total amount paid by the total hours to get the rate
180 /20 = 9
She is paid 9 dollars per hour
What inequality describes the solutions of 2y < 8?
y ?
?
Answer:
45 I think
Step-by-step explanation:
I think that the answer to the question is 45 and I'm not very sure if if I can explain it to you because I don't know if it's right
Nick was surveying his field and saw some cows and ducks. Nick counted a total of 80 heads and
248 legs. Assuming there are no mutations in the animals, determine exactly how many ducks and
cows he saw. Let X represent the number of ducks and y represent the cows.
Total Equation:
Legs Equation:
How many ducks?
How many cows?
Answer:
44 cows and 36 ducks.
Step-by-step explanation:
x is ducks and y is cows.
Assuming both have 1 head each, we can write:
x + y = 80.
Let's assume each x(cow) has 4 legs and each y(duck) has two legs.
Then we can add the numbers of legs:
2x + 4y = 248 legs
Now rearrange x + y = 80 to:
x = 80-y
and substitute:
2x + 4y = 248 legs
2(80-y) + 4y = 248 legs
160 - 2y + 4y = 248 legs
2y = 88 legs
y = 44 [There are 44 cows]
Use this value to find the number of ducks:
x + y = 80
44 + y = 80
y = 36 [There are 36 ducks]
========================
Check:
Do 44 cows and 36 ducks have a total of 248 legs?
4*44 + 2*36 = 248 ?
176 + 72 = 248?
YES
Which statements describe one of the transformations performed on f(x) =^2 to create g(x) = -(x - 2)^2+5 ?
Answer:
f(x-6) ... shift right 6
2f(x-6) ... stretch vertically by 2
-2f(x-6) ... reflect across x-axis
-2f(x-6)+5 ... shift up 5
Step-by-step explanation:
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Mrs. Thomas is planning a business trip. she lives in Austin and will be driving through San Antonio to Laredo, the distance between Austin and San Antonio is 79 miles. the distance from Austin to Laredo is 6 miles less than 3 times the distance from Austin to San Antonio.
a. Write an equation that can solve be sloved to find the distance from Austin to Laredo.
Answer:
231 miles.
Step-by-step explanation:
79*3 = 237
237-6 = 231.
Anya’s team won 5 out of every 7 games this season.
If the team played 28 games this season, how many games did they win?
Enter your answer in the box.
Answer:
20 out of 28 games.
Step-by-step explanation:
28 divided by 7 is 4.
5 times 4 is 20.
20 out of 28 games.
(This is simple math honestly.)
18.14 divided by 0.06 ASAP TEST TOMMOROW
Answer:
302.33
Step-by-step explanation:
Answer:
302.333... Its a repeating number.
Step-by-step explanation:
Y’all I really don’t understand-
Some help with some of this transformation on linear functions would help, you don’t have to necessarily answer all of them, just if you answer two or three i’d be really grateful ;w;
Answer:
1. f(x) - 7
2. The lines do not have same x-intercept
3. a(x) = f(x+7)
4. b(x) = f(x-3)
5. c(x) = f(x) + 5 and c(x) = f(x+5) are two functions that can represent c(x)
6. a. g(x) = f(x-8)
b. Slope of g(x) = 1
c. y-intercept = (0, -8)
7. a. p(x)=f(x+6) is vertical transformation of f(x) = x. f(x) is the parent function.
b.(please check explanation section.)
For the second page, here are the answers
5.
a. False
The slope of f(x) will be steeper than m(x)
b. False
The y-intercept doesn't change due to multiplication of 3/5
6. C. h(x) = 3f(x-5)
7. d(x) = 1/4 f(x) + 9
8. Erika: c(x) = 4f(x) + 4 is the first graph
Landry: c(x) = -4f(x) + 3 is the second graph
Step-by-step explanation:
1. f(x) - 7 = x - 7 ( y intercept is translated down when g(x) = x - k )
2. The lines do not have same x-intercept. ( x-intercept of f(x)=x is (0,0) and that of f(x-10) is (0,10)
3. a(x) = f(x) + 7 = x + 7 = f(x+7)
4. b(x) = f(x) - 3 = x - 3 = f(x-3)
5. c(x) = f(x) + 5 = x + 5 = f( x+5)
c(x) = f(x) + 5 and c(x) = f(x+5) are two functions that can represent c(x)
6. a. g(x) = f(x) - 8 = x -8 = f(x-8)
b. Slope of g(x) = Slope of f(x)
Slope of f(x) = d(f(x)/dx = dx/dx = 1
Therefore Slope of g(x) = Slope of f(x) = 1
c. y-intercept = (0, -8) (In this case The y-intercept of g (x)=f(x-8) is translated down as -8<0 by 8 units.)
7. b. Look at the graph for part b
Now for the second page, here are the steps
look at the pictures, they show the steps and solution
Find the size of angle AED
the first three common multiples of 2 5 and 10
:
Multiples of 2 are: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ………… etc. Multiples of 5 are: 5, 10, 15, 20, 25, ………… etc. Therefore, common multiples of 2 and 5 = 10, 20, ………..etc.
help me with geometry please
Answer:
180-115=65
180-65-80= 25
y = 25
show given 4x+5y>= -20 inequalities on a graph
Answer:
y≥−4/5x−4
Step-by-step explanation:
Im not sure but i think its correct
please help meeee !!!
A shop orders 23 packs of pens for 2.81 each. how much do they pay
Answer:
$64.63
Step-by-step explanation:
Multiply both values:
23 packs for 2.81 each23 x 2.8164.63They pay 64.63
-Chetan K
Answer:
$64.63
Step-by-step explanation:
You multiple 23 by $2.81, I'm sorry if the explanation is brief, but this problem is relatively simple.
Have a nice day!
[:
Find the maximum area for a rectangle with a perimeter of 120 meters.
Answer:
900 m^2
Step-by-step explanation:
Let x = length, y = width
perimeter = 2x + 2y = 2(x + y) = 120. so
x + y = 60, or y = 60 - x
Area = xy = x(60 - x) = 60x - x^2
= -(x^2 - 60x + 30^2) + 30^2
= 900 - (x - 30)^2
Note (x - 30)^2 is never negative, at least zero.
When (x - 30) = 0, the area is the largest which is 900 m^2
4. John, Jim, Jay, and Jack have formed a band consisting of 4 instruments. If each of the boys can play all 4 instruments, how many different arrangements are possible? What if John and Jim can play all 4 instruments, but Jay and Jack can each play only piano and drums?
Answer:
The first part is correct! → There are 4 distinct instruments to distribute to 4 distinct people. And there are 4!=24 distinct ways of doing this.
For the second part. → Jay and Jack can only play 2 instruments, therefore we have 2 instruments for 2 people, and the distribution for these guys can be made in 2!=2 distinct ways.
Then, note that all that is left are 2 distinct instruments for 2 people. So there is an additional 2 distinct ways of doing this distribution for these other guys.
By the product rule, in total, we can do 4 distinct distribution in this condition.
Step-by-step explanation:
Please mark me as brainliest
i’ll give brainliest!!! question in the picture
Answer:
5a + 2b is the total amount Hattie spent
Step-by-step explanation:
12a - 7a
4b - 2b
Solve for b.
5b = 85
Answer:
b = 17 t = 12
Step-by-step explanation:
5b = 85
5b/5 = 85/5
b = 17
t/3 = 4
t/3 x 3 = 4 x 3
t = 12
Write the slope-intercept form of the equation of each line.
Step-by-step explanation:
9.
the first we see when going from left to right : the line goes down, so it has a negative slope (factor of x).
then we look at the y-intercept (the point where the line crosses the y-axis) : negative y and around -5.
with all that we have eliminated B and D.
and not only does the line go down, it goes sharply down. so, the absolute value of the slope must be bigger.
therefore, C is the right answer.
and a quick check confirms, as the slope -10/3 means that for a change of x by +3 units causes y to change by -10, and that is what we are seeing on the chart.
at x = -3 it looks like y is about +5.
and at x = 0 (change by +3) it looks like y is about -5 (change by -10).
10.
the y-intercept does not give us a clue here, it is 1 for all 4 options, and the graph confirms it.
but this line goes up, so the slope is positive.
it is rather "flat" and by far not even diagonally, so the absolute value of the slope must be a small value (much smaller than 1, as a slope of 1 means "diagonally").
therefore, D is the right answer.
a quick check confirms, as the slope 1/5 means that for a change in x by +5 would lead to a change in y by +1.
and that is what we are seeking on the chart.
at x = -5 it looks like y is about 0.
at x = 0 (change by +5) it looks like y is about +1 (change by +1) - the y-intercept.
Josh can eat 35 tacos in 7 minutes. At this rate, how many tacos 1/2minutes ? will he eat in 4 1 minutes?
Answer:
22 and a half
Step-by-step explanation:
josh eats 35 tacos in 7 minutes. break it down into 7ths. you will get:
| 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Count four of those: or 5 x 4 = 20
Add half of 5= 2.5
20 + 2.5 = 22.5
7.40- 2.75 ... show your work
Antonio flips a Coin 40 times. The coin lands on tails 12 times. According to theoretical probability, how many more times would Antonio have expected the coin to land on tails?
Answer:
Therlanmo proidigy
Step-by-step explanation:
a car travels for 300 km at an average speed of 65 km/h.How long does the car take to travel the distance
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Determine the area of the given triangle. *
Answer:
12 units
Step-by-step explanation:
A=hbb/2=6·4/2= 12
Write an equation in slope-intercept form for the line with y-intercept 1 and slope 3/4
Answer:
Y=3/4x + 1
Step-by-step explanation:
Y intercept x=0
Therefore point(0,1) satisfies.
There fore constant c is 1
Answer:
y = [tex]\frac{3}{4}[/tex] x + 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here m = [tex]\frac{3}{4}[/tex] and c = 1 , then
y = [tex]\frac{3}{4}[/tex] x + 1 ← equation of line