Answer:
y=6x+3
Step-by-step explanation:
Complete the recursive formula of the arithmetic sequence 20, 26, 32, 38, ....
a(1) =
a(n) = a(n-1)+
Step-by-step explanation:
a(n) = a +(n-1)d
a=20
d=26-20=6
°.° a(n) = 20 +(n–1)6
a(1) = 20 +(1–1)6=20
hope this helps
if f(x)=4x−1 find f(4)
Answer:
f(x)=4x-1
substitute x=4
f(4)=4×4-1
f(4)=15
The answer to a division problem is the __________.
dividend
quotient
divisor
remainder
40 is what percent of 32?
?=p/100
p=?
Answer:
125℅
Step-by-step explanation:
40/32 x 100℅=125℅
if in a drug-study to test the effectiveness of a new drug for treating the common cold, you are randomly assigned to a group that gets the drug, this would mean that you
This means that you are in the experiment group
It is common to choose a group of people to study the effect of certain things like the one given in this question. The selection of people is done after designing the sample size for a certain population. The design varies depending on whether the analysis is qualitative or quantitative.
The people who lie in the sample size actually contribute to the experiment are said to be part of it.
Therefore, if you are part of the study that is used to test the effectiveness of a new drug for treating the common cold. It means you are part of the experiment group.
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help. I will gave points
Answer:
B
Step-by-step explanation:
just multiply each x input by 3 and add 9
Answer:
B
Step-by-step explanation:
If you were to graph this, the four points line up with the linear equation.
Which point is not in plane M.
X
P
Y
N
Answer:
i think y is correct
hope this helps
the adams family and the green family each used their sprinklers last summer. the water output rate for the adams family's sprinkler was per hour. the water output rate for the green family's sprinkler was per hour. the families used their sprinklers for a combined total of hours, resulting in a total water output of . how long was each sprinkler used?
The duration of the sprinkler used by each families are-
Adams family: 25 hoursGreen family: 30 hoursWhat is linear equation in two variables?Linear equations in two variables are equations with one, none, and infinitely many solutions where each of the two variables has the highest exponent order of 1.
A two-variable linear equation has the standard form ax + by + c = 0, where x and y are the variables. The solutions could also be composed in pairs, such as (x, y).Now, as per the given question;
Let the total time taken by Green family is 'x'.
Let the total time taken by Adams family is 'y'
The total time for which the sprinkler are used is 55 hours.
Thus, x + y = 55 (equation 1)
The water output rate for the Green family's sprinkler was 30 L per hour.
The water output rate for the Adams family's sprinkler was 20 L per hour.
The total output of the water is 1400 L.
Then,
30x + 20y = 1400 (equation 2)
Substitute the value of x from equation 1 in equation 2.
30(55 - y) + 20y = 1400
Dividing whole equation by 10.
3(55 - y) + 2y = 140
Solving the equation.
165 - 3y + 2y = 140
y = 165 - 140
y = 25 hours. (Time for which Adams family used the sprinklers)
Put value of y in equation 1 to find x.
x = 55 - y
x = 55 - 25
x = 30 hours. (Time for which Green family used the sprinklers)
Therefore, the time for which both of the families used the sprinklers is estimated.
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The complete question is-
The Green family and the Adams family each used their sprinklers last summer. The water output rate for the Green family's sprinkler was 30 L per hour. The water output rate for the Adams family's sprinkler was 20 L per hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output of 1400 L. How long was each sprinkler used?
PLS SOLVE I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER
Answer:
y = -1.50x + -3
---------------------------------------------
Step 1: Calculating Slope (m).
m = y2-y1/x2-x1
m = 3-0/-4--2
m = 3/-2
m = -1.50
Now putting value of m in equation (i)
y = -1.50x + b
Step 2: Calculating Y-intercept (b).
Lets choose the first point, (-2,0) for calculating y-intercept:
y = mx + b
0 = -1.50(-2) + b
0 = 3 + b
-3 = b
b = -3
Now putting value of b in equation
y = -1.50x + -3
Find the slope of the line.
432A
3
1234
-1
-2
-3
-4
1 2 3 4
Simplify completely.
Slope
=
to get the slope of any straight line, we simply need two points off of it, let's use the ones in the picture below
[tex](\stackrel{x_1}{-2}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{2}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{2}-\stackrel{y1}{0}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{(-2)}}} \implies \cfrac{2 }{2 +2}\implies {\LARGE \begin{array}{llll} \cfrac{1}{2} \end{array}}[/tex]
Jim's science class is making slime from cornstarch and glue. Jim is helping pass out materials. He gives each student 80 grams of cornstarch from a 2-kilogram bucket. If Jim's class has a total of 21 students, how many grams of cornstarch will he have left?
The total amount of corn starch left is 320 grams.
How to find the grams of corn starch left?He gives each student 80 grams of corn starch from a 2-kilogram bucket.
Each students collected 80 grams of corn starch.
Therefore,
1 student = 80 grams of corn starch
His class has a total of 21 students.
Therefore,
total mass of corn starch distributed = 21 × 80
total mass of corn starch distributed = 1680 grams
The corn starch from the bucket = 2 kg
1kg = 1000 g
2kg = 2000g
Hence,
The corn starch from the bucket = 2000 grams
Finally,
amount in grams of corn starch left = 2000 - 1680
amount in grams of corn starch left = 320 grams.
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work out the value of x
will give brainliest
Answer:
x = 35
Step-by-step explanation:
we know that all triangles add up to 180
you first need to make an expression in which the angles equal 180
105 + 140 + x = 180
145 + x = 180
subtract 145 from both sides
x = 35
pls helppp
math work
bleh
Answer:
Yes
Step-by-step explanation:
The solved equation will be n<-1
-11 is less than -1 so that will be answer
I'll give brainliest
Answer:
C=√4^2+100^2=100.08
Sam used the identity [tex](a+b)^{2}[/tex] to solve [tex]103^{2}[/tex].
the steps he used are listed below.
Step 1 :[tex](100+3)^2\\[/tex]
Step 2 : [tex](100)^2 + 3^2[/tex]
Step 3 : 10,000 +9
Step 4 : 10,009
In which step did he go wrong?
a)Step 1
b)Step 2
c)Step 3
d)Step 4
Answer:
Step 2
Step-by-step explanation:
(100 + 3)² = 100² + 2 x 100 x 3 + 3²
This is by the law of squares
(a + b)² = a² + 2ab + b²
help me someone!!pls
Answer:
lower right
Step-by-step explanation:
The lower quartile is located at the left side of the box
The upper quartile is located at the right side of the box
The lower quartile 24 and upper quartile 42
are positioned correctly on the lower right box plot
In the square pyramid below, line segment AB is parallel to line segment ___.
Answer: segment CD
Step-by-step explanation:
should be simple work!!!
Answer:
Lier, if it was simple then do. Just ban me already
Step-by-step explanation:
The FitnessGram Pacer test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter Pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal *boop*.
John has $190 in his savings account. He earns 10% in interest per year.
What will John’s saving account balance be at the end of the year?
Answer:
1,900
Step-by-step explanation:
If you made 3 lawns and made 25.50 how much per lawn
Answer:
76.5
Step-by-step explanation:
25.50 x 3 = 76.5
Answer:
$8.50
Step-by-step explanation:
put 25.50/3 and you get 8.50
-14 < 7x < 21
Solve the compound iniquity and graph it’s solution.
Answer:
-2 < x < 3
Step-by-step explanation:
-14 < 7x < 21
Divide all three sides by 7 :
[tex]-14 < 7x < 21[/tex]
[tex]\Longleftrightarrow \frac{-14}{7} < \frac{7x}{7} < \frac{21}{7}[/tex]
[tex]\Longleftrightarrow -2 < x < 3[/tex]
The solution in interval notation (-2 , 3)
An 8-pint jug of water costs $5.76. What is the price per cup?
$
Answer:
1.38888888889
write each fraction as a percent 37/50
Answer:
74%
Step-by-step explanation:
37/50
= 74
Answer:
74%
Step-by-step explanation:
37/50 = x/100
50x=3700
x=74
A concession stand sold Takis for $3 each and drinks for $2 each and made $370. The total Takis sold was 20 more than the drinks. How many
bags of Takis were sold?
Answer:
102 Takis sold
Step-by-step explanation:
x = # drinks sold
y = $ Takis sold
System of Equations:
x = y - 20
3x + 2y = 370
Use substitution method to solve.
just answer 15 I need help on math
Answer:
15.3
Step-by-step explanation:
30 fair ride tickets for $10 how much does one ticket cost
Answer:
$3
Step-by-step explanation:
The equation we can create for this respective problem is "10x = 30" where the 10 represents the dollars and the 30 represents the tickets. We can start off by dividing each side by 10 since the coefficient is accompanied by a variable, therefore, the inverse would be division. 30/10 equals 3, thus making the answer $3 per ticket.
Hope this helps! :D
Answer:
One ticket costs 0.333...
Hope this helps
Step-by-step explanation:
10 / 30 = 0.33333...
For example,
If it was 10 tickets for 30$, one ticket would cost 3$. But it is the opposite, it's 30 tickets for 10$.
30 / 10 = 3
Can someone help me out with this inequality problem?? Will give brainliest to best answer!!
Answer:
250x + 525y ≤ 7800
no, 15 refrigerators and 8 pianos will not fit on the truck
Step-by-step explanation:
we know that x is the refrigerators and each one is 250 lbs
this can be written as 250x
we know that y is the pianos and each one is 525 lbs
this can be written as 525y
we also know that "no more than" is the same that as less than equal to
so this can be written as ≤
we can also say that the refrigerators and pianos has to be ≤ 7800
so now we have: 250x + 525y ≤ 7800
plug in 15 to x and 8 to y
250(15) + 525(8) ≤ 7800
3750 + 4200 ≤ 7800
7950 ≤ 7800
this statement is not true so no, 15 refrigerators and 8 pianos will not fit on the truck
Write an equation that represents the relationship between the total number of copies and the number of minutes that the copier is used
Answer:
The constant is actually 40 because every minute, 40 more copies are made. The equation would be c = 40t.
Step-by-step explanation:
Archie and three friends go on holiday together for a week. The costs of the holiday will be shared equally between the 4 friends.
These are:
£1360 for 4 return plane tickets
£850 for the accommodation
£210 for the car hire for a week
How much does Archie have to pay for his share of the costs? £605
The amount Archie has to pay for his share of the cost is £605
How to find the amount Archie have to pay for his share of the cost?The costs of the holiday will be shared equally between the 4 friends.
These are:
£1360 for 4 return plane tickets£850 for the accommodation£210 for the car hire for a weekThe 4 of them will share the total cost equally. This means Archie paid the same amount with his friends.
Therefore, the amount Archie have to pay for his share of the costs can be calculated as follows:
total cost = 1360 + 850 + 210
total cost = £2420
Amount Archie paid = 2420 / 4
Amount Archie paid = £605
Therefore, the amount Archie has to pay for his share of the cost is £605
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WHAT IS THE SLOPE OF THE LINE THAT MODELS THIS SITUATION?
right 2 and down 1 so its (2,-1)