Answer:
D
Step-by-step explanation:
y=6x-8 solve in system of equations using the method substitution
What is the ratio for writing utensils to school supplies?
Answer:
writing utensils= 16
School supplies=20
16:20
4:5 simplified
TRICKY (一_一)
Find the missing x value for for question 14
Answer:
x=12 but who knows maybe
Step-by-step explanation:
if we are trying to say those lines are equal length than surely the equations must be equal value otherwise they aren't equal so we can probably set them equal to each other and solve for x right? 2x+6=3x-6 subtract 6. 2x=3x-12. subtract 3x. -1x=-12. divide by -1 so x=12.
Two angles are complementary. Angle 1 has a measure of
3x + 14 and Angle 2 has a measure of 4x + 6. What is the
value of x?
Answer:
x = 10
Step-by-step explanation:
3x + 14 + 4x + 6 = 90
7x + 20 = 90
90 - 20 = 70
70 / 7 = 10
x = 10
z2 − 2 = 0 using the quadratic formula
Two solutions were found :
1. z = 2
2. z = -1
Step-by-step explanation:
what is the value of ?
HELP PLEASEEE !
Answer:
30
Step-by-step explanation:
ueeedjueuudxjjcfiifcuif
This is exponential growth and decay
Given:
In 1999, the number of mosquitos = 2500
They tripled every year.
To find:
The model for this situation and find the number of mosquitos in 2005.
Solution:
The general exponential modal is
[tex]y=ab^x[/tex] ...(i)
Where, a is the initial value and 0<b<1 is decay factor and b>1 is growth factor.
In 1999, the number of mosquitos is 2500.
Initial value: [tex]a=2500[/tex]
They tripled every year. So, growth factor is 3>1 and it is exponential growth.
Growth factor: [tex]b=3[/tex]
Putting [tex]a=2500[/tex] and [tex]b=3[/tex] in (i), we get
[tex]y=2500(3)^x[/tex] ...(ii)
Here, y is the population of mosquitos after x year of 1999.
Therefore, the required exponential growth modal is [tex]y=2500(3)^x[/tex].
We know that,
[tex]2005-1999=6[/tex]
Putting x=6 in (ii), we get
[tex]y=2500(3)^6[/tex]
[tex]y=2500(729)[/tex]
[tex]y=1822500[/tex]
Therefore, the estimated number of mosquitos in 2005 is 1822500.
someone please help i'm horrible with math
Step-by-step explanation:
the process of finding out the variable value that makes the equation true is called 'solving' the equation. An equation is a statement that two quantities are equivalent. For exp/example:. x + 1 = 4 mean that when we add 1 to the unknown value, 'x', the answer is equal to 4 .
The number of cartons of apples sold at a store each day for eight days is shown. 30 , 40 , 51 , 30 , 34 , 20, 30, 45 Determine the value for each statistical measure. 2. The number of fifth graders buying lunch each day for nine days is shown. 90 , 72 , 48 , 84 , 77 , 72, 50, 83 Determine the value for each statistical measure. Mean Median Mode Range 30 31 35 32
Answer:
Mean = 35
Median = 0.5(n + 1)th term
Median = 0.5(9) = 4.5th term
(30 + 34) /2 = 32
Mode = 30 ( most frequent)
Range = (51 - 20) = 31
Mean = 72
Median = 0.5(n + 1)th term
Median = 0.5(9) = 4.5th term
4th + 5term = (72 + 77) /2 = 74.5
Mode = 72 ( most frequent)
Range = (90 - 48) = 42
Step-by-step explanation:
Given :
1.)
Data: 30 , 40 , 51 , 30 , 34 , 20, 30, 45
Rearranged data : 20, 30, 30, 30, 34, 40, 45, 51
Mean = ΣX / n = 280 / 8
Mean = 35
Median = 0.5(n + 1)th term
Median = 0.5(9) = 4.5th term
(30 + 34) /2 = 32
Mode = 30 ( most frequent)
Range = (51 - 20) = 31
2.)
90 , 72 , 48 , 84 , 77 , 72, 50, 83
Rearranged data : 48, 50, 72, 72, 77, 83, 84, 90
Mean (m) = ΣX / n = 576 / 8
Mean = 72
Median = 0.5(n + 1)th term
Median = 0.5(9) = 4.5th term
4th + 5term = (72 + 77) /2 = 74.5
Mode = 72 ( most frequent)
Range = (90 - 48) = 42
Please help... Math is so hard for me. Can someone please explain?
Answer:
3rd choice
Step-by-step explanation:
the 3rd choice is the same as all of the others just in fraction form .you need to keep fraction form for the statement to still be true
Answer: 1st one
Step-by-step explanation: All you got to think about is think of the fraction if the x value is odd and the y value is odd, when you add them together you will get and odd number. :)
There are 272 people in an audience. The ratio of adults to children is 5 : 3. How many are children? (please answer)
Answer:
There are 102 children
Step-by-step explanation:
Let us solve the question
∵ There are 272 people in an audience
∴ The total number of people = 272
∵ The ratio of adults to children is 5: 3
→ Find the sum of the two parts of the ratio
∴ The sum of the parts of the ratio = 5 + 3 = 8
→ By using the ratio method
→ Adults: Children: People
→ 5 : 3 : 8
→ A : C : 272
→ By using the cross multiplication
∵ C × 8 = 3 × 272
∴ 8C = 816
→ Divide both sides by 8
∴ C = 102
∵ C represents the number of children
∴ There are 102 children
Every hour, a runner is able to run the same number of miles. If on his 3rd hour of running he has gone 15 miles, and on his 5th hour of running he has gone 25 miles, what is the rate at which he runs?
Step-by-step explanation:
15 miles / 3 hours = 5 miles per hour.
25 miles / 5 hours = 5 miles per hour.
The runner runs at 5 miles per hour.
17cm
9cm
6cm
7cm
3cm
15cm
What is the area of this figure?
Answer:
Step-by-step explanation:
57cm²
Multiply by using the distributive property. (5x + 5)(x - 2) =
the answer is 5x^2-5x-10
Answer:
5x2 - 5x - 10 (IM SORRY IF IM WRONG)
Step-by-step explanation:
What's the line's slope
Answer:
y= -x
or
y= -1x
Step-by-step explanation:
hope it helps :)
Solve the following equation:
8(x - 4) = 4(x - 7)
Answer: = 1
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
8(x-4)=4(x-7)
we can expand the brackets
8x-32=4x-28
8x-4x=-28+32
4x=4
x=1
50 points for answer.
Three vertices of parallelogram ABCD are A(2,6), B(2,2) and D(4,4). Find the coordinates of the remaining vertex.
Answer:
Point C: (4, 0)
Step-by-step explanation:
Parallelograms are quadrilaterals with two pairs of parallel sides, this means they will have the same slope between two line segments.
point slope form between two points: y - y1 = m (x - x1)
point A (2, 6) and D (4,4):
slope: point form, 6 - 4 = m(2 - 4)
2 = -2m
m (slope) = [tex]\frac {2}{-2}[/tex] = [tex]\frac {Change in X position}{ Change in Y position}[/tex]
now that you know the change in position, apply this to vertice B to get the position of the final vertice.
B(2, 2)
C (2 +2, 2-2) = C(4, 0)
The final position of C vertice for parrallelogram A(2,6), B(2,2), D(4,4) will be C(4,0)
Graph the following piecewise function.
Answer:
Pic is not working sorry. :(
Step-by-step explanation:
how do i find the hypotenuses of a right triangle with only one side length (adjacent side) and one angle?
f(x) = 3x - 5; Find f(-4)
Answer:
‐17
Step-by-step explanation:
given, f(x) = 3x ‐ 5
or, f(‐4) =( 3 × ‐4 ) ‐5
or, f(‐4) = ‐12 ‐5
or, f(‐4) = ‐17
Find AE
Note: Figure is not to scale.
26
96
D
E
16
G
22 F
B.
AE =
Pls help ASP
Answer: The correct answer might be 6
What is 12 divided by N
Answer:
10
Step-by-step explanation:
Mari spends $6 on cheese for a party she also plans to buy b boxes of crackers that cost $3 per box
Answer:
6+3b=x
Step-by-step explanation:
The total amount of money spend on crackers and cheese is given by the inequality 3b + 6 ≤ 15
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
Let the amount spend on cheese be = $ 6
The number of boxes of crackers = b
The cost of one box of crackers = $ 3
So , the total amount for b box of crackers = 3b
The maximum amount of money that can be spend = $ 15
And , total amount of money spend on crackers and cheese is
3b + 6 ≤ 15
Subtracting 6 on both sides , we get
3b ≤ 9
Divide by 3 on both sides , we get
b ≤ 3 boxes
Therefore , the value of b is 3 boxes
Hence , the inequality is 3b + 6 ≤ 15
To learn more about inequality equations click :
https://brainly.com/question/11897796
#SPJ3
The complete question is :
Mari spends $6 on cheese for a party she also plans to buy b boxes of crackers that cost $3 per box.Which inequality shows that Mari wants to spend at most $15 on cheese and crackers for the party?
helpppp please hurryyyy
Answer:
X=7 and y is y=40 length is 47
Step-by-step explanation:
PLS ANSSWEWEEERRR ITS TIMED...
btw the second screenshot has c. and d. the first has a. and b.
Answer: D
Step-by-step explanation:
PLEASE HELP ASAP!! THANK YOU!
187373828282746282847828274737282
You are given m
Answer choices:
a) 13.5
b) 24
c) 9
d) 36
Prove that the convergence or divergence of series is not affected by multiplying each term by the same non-zero constant
Answer:
Suppose that we have a converging series like:
(a₁ + a₂ + a₃ + ... ) = A
or
∑aₙ = A
So this series converges to the value A.
Now, let's multiply all the coefficients by a real number c, different than zero, then the sum is:
(c*a₁ + c*a₂ + c*a₃ + ...)
now we can take the common factor c out, to get:
c*(a₁ + a₂ + a₃ + ...)
And the thing inside the parentheses is equal to A, then we have:
c*(a₁ + a₂ + a₃ + ...) = c*A
So the series still converges for any value of c.
Now, suppose that this series diverges (to minus infinity or infinity)
Then we have:
(b₁ + b₂ + b₃ + ...) = ∞
Same as before, we multiply all the terms by the same number c:
(c*b₁ + c*b₂ + c*b₃ + ...)
again, we take the common factor out:
c*(b₁ + b₂ + b₃ + ...)
And same as before, we get:
c*(b₁ + b₂ + b₃ + ...) = c*∞
and c*∞ is still equal to ∞ (or -∞ if c is negative), so the series still diverges.
In the school band, 3/5 of the students play the trumpet. Of these, 1/6 also play the trombone. What fraction of the students in the band play both trumpet and trombone?
4/7
Step-by-step explanation:
if you turn them into percentage you can get what I just got by doing that cross multiple
35% of the students at charles drew middle school are 6th graders if there are 84 sixth graders what is the total number of student in the school
Answer: The total number of student in the school = 240.
Step-by-step explanation:
Let x be the total number of students in the school.
Given: 35% of the students at Charles drew middle school are 6th graders.
i.e. Number of sixth graders = 35% of x = 0.35x [35% = 0.35]
Since there are 84 sixth graders in the school,
So [tex]0.35x=84[/tex]
Divide both sides by 0.35, we get
[tex]x=\dfrac{84}{0.35}=\dfrac{84\times100}{35}=240[/tex]
Hence, the total number of student in the school = 240.