The value of x by solving for x from 3x +2 = 38 is; 12.
According to the question;
We are required to solve for x from 3x+2=383x+2 = 383x = 38 - 23x = 36x = 12The value of x from the equation is; x = 12
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If Kelly's heart beats an average of 1*10^2 times per minute , about how many times does Kelly's heart beat in a year?(1 year is 525,600 minutes)
In a class of 30 students 60% said they walk to school.
A) estimate how many students in the class walk to school.
B) write a proportion that you could use to determine the number of students in the class who walk to school.
C) solve your proportion. Check that your answer is reasonable.
Answer:
a) 18
b) 18 : 12
c)3 : 4
Step-by-step explanation:
a) 30 × [tex]\frac {60}{100}[/tex]
= 18 students walk to school
b) No. of students No. of students
who walk to school : who walk to school
18 : 12
c)
18 : 12
=18/6 : 12/3
=3 : 4
what factor makes the number sentence
7x4= 4x7
Answer:
Its a very complex solution but it x
=
0
,
3
√
14
2
Step-by-step explanation:
I need help again..... and FAST
Answer:
b
Step-by-step explanation:
Help ASAP I’m stuck
Answer:
5, 12, 6, 4, 6, 5
Step-by-step explanation:
The nearest square root to 28 is 25, which is 5.
The nearest square root to 135 is 121, which is 12.
The nearest square root to 38.7 is 36, which is 6.
The nearest cubic root to 51 is 64, which is 4.
The nearest cubic root to 200 is 216, which is 6.
The nearest cubic root to 95 is 125, which is 5.
Please help me with this
Answer:
D
Step-by-step explanation:
Help please! (Please do not answer with links)
Three step linear equations
8x - 10 = 4x - 30
Answer:
x = -5
Step-by-step explanation:
8x - 10 = 4x - 30
Subtract 4x from each side
8x-4x - 10 = 4x-4x - 30
4x -10 = -30
Add 10 to each side
4x-10+10 = -30+10
4x= -20
Divide by 4
4x/4 = -20/4
x = -5
x² – x² – 3x + 3
all rational zeros to a polynomial
Answer:
x = 1
Step-by-step explanation:
[tex] {x}^{2 } - {x}^{2} - 3x + 3 \\ - 3x + 3 \\ 3x = 3 \\ x = 1[/tex]
Please help with this question
Answer:
2:5
Step-by-step explanation:
beacuse ratio is 8/20 which is equal to AP/PB= 2/5
Answer:
2.5
Step-by-step explanation:
AP is 8
PB is 20 thus
AP
PB is equal to8/20 which is 2.5
SOME ONE PLEASE HELP!!! I HAVE A TEST SOON AND IDK HOW TO DO THIS!!!
im my wallet i have some quarters and some dimes. i have 16 coins in all and they total $2.95. how many of each coin do i have
THANK YOU SO MUCH ILY
Answer:
8 quarters and 8 dimes
Step-by-step explanation:
Answer:
9 quarters 7 dimes they equal $2.95
If you simplified 10/15 as a fraction what would the answer be
Answer:
2/3
Step-by-step explanation:
10/15 can be divided by 5
Pls help me fast! Thank you!
Answer:
-2.5
Step-by-step explanation:
Slope is y over x, so in this case -15/6. Do -15/6 to get -2.6
Answer:
Step-by-step explanation:
Zachary purchased a computer for 1100 on a payment plan. 4 months after he purchased the computer, his balance was $755. Five months after he purchased the computer, his balance was $640. What is an equation that models the balance b after m months. What does the slope signify is zacharys equation?
Answer:
Model is
b = 115m + 65
The slope represents the amount of balance offset per month
Step-by-step explanation:
Here, we want to model an equation.
The equation to model will be in the form;
y = mx + c
we have the following points to consider
The points are in the form;
(number of months, balance)
(m , b)
So the points we have are;
(4,755) and (5,640)
So the slope will be ;
(y2 -y1)/(x2-x1) = (755-640)/(5-4) = 115
So the equation will be;
b = am + c
where a is the slope and c is the y intercept
we already have the slope
so equation becomes;
b = 115m + c
let’s get the y-intercept
we can get the y-intercept by any of the points;
That would be; let’s use (5,640)
640 = 5(115) + c
640 = 575 + c
c = 640 -575
c = 65
So the equation of the model is;
b = 115m + 65
The slope represents the balance per month
what is 3/2=9/10k im having troble lots rly
Answer:
k= 5 over 3 =1.667
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
(3)/(2)-((9)/(10)*k)=0
simplify 9/10
3 9
— - (—— • k) = 0
2 10
simplify 3/2
3 9k
— - —— = 0
2 10
Find the Least Common Multiple
The left denominator is : 2
The right denominator is : 10
Least Common Multiple:
10
Calculate multipliers for the two fractions
Denote the Least Common Multiple by L.C.M
Denote the Left Multiplier by Left_M
Denote the Right Multiplier by Right_M
Denote the Left Deniminator by L_Deno
Denote the Right Multiplier by R_Deno
Left_M = L.C.M / L_Deno = 5
Right_M = L.C.M / R_Deno = 1
Rewrite the two fractions into equivalent fractions
Two fractions are called equivalent if they have the same numeric value.
For example : 1/2 and 2/4 are equivalent, y/(y+1)2 and (y2+y)/(y+1)3 are equivalent as well.
To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.
L. Mult. • L. Num. 3 • 5
—————————————————— = —————
L.C.M 10
R. Mult. • R. Num. 9k
—————————————————— = ——
L.C.M 10
Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
3 • 5 - (9k) 15 - 9k
———————————— = ———————
10 10
Pull out like factors :
15 - 9k = -3 • (3k - 5)
-3 • (3k - 5)
————————————— = 0
10
When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
Here's how:
-3•(3k-5)
————————— • 10 = 0 • 10
10
Now, on the left hand side, the 10 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
-3 • (3k-5) = 0
Solve : -3 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solve : 3k-5 = 0
Add 5 to both sides of the equation :
3k = 5
Divide both sides of the equation by 3:
k = 5/3 = 1.667
one solution was found
k = 5/3 = 1.667
hope it helps sry its so long
(50 PTS/MORE INFO INSIDE) How many outcomes do NOT show an even number on the first spinner and show a 6 on the second spinner?
Answer:
i think u forgot to add the picture bro?
Step-by-step explanation:
evaluate 7m+ 3mn when m=8 and n=14?Answers:aA:84,B:196,C:392,D=168
Answer:
c) 392
Step-by-step explanation:
Given f(x) = 17- x?, what is the average rate of change in f(x) over the interval [1, 5]?
-6
-1/2
1/4
1
Answer: -6
Step-by-step explanation: I just took the test
Explain why 10 x 2 is equivalent to 10 ÷ 1/2.
Answer:
in order to divide by a fraction, you need to multiply by its reciprocal instead, which would be 2 over 1 (2/1)
Step-by-step explanation:
in this case, 10 divided by 1/2 turns to 10 x 2/1
i tried my best, sorry if i couldnt help
Three support beams for a bridge form a pair of complementary angles. Find the measure of each angle.
(2x - 20) (4x - 10)
The number π is A. Rational B. Irrational
"The model can be used to solve 6×3.27. Select the partial products from the drop-down lists" i have no clue what to do, can someone explain to me?
Answer:
The partial products are:
18 + 1.2 + 0.42
The sum: 19.62
Step-by-step explanation:
This has to do with understanding what place value is.
3 ones = 3 * 1 = 3
6 * 3 ones = 18
2 tenths = [tex] 2 * \frac{1}{10} = 2*0.1 = 0.2 [/tex]
6 * 2 tenths = 1.2
7 hundredths = [tex] 7 * \frac{1}{100} = 7*0.01 = 0.07 [/tex]
6 * 7 hundredths = 0.42
The partial products are:
18 + 1.2 + 0.42
The sum = 19.62
Answer:
Answer:
The partial products are:
18 + 1.2 + 0.42
The sum: 19.62
Step-by-step explanation:
This has to do with understanding what place value is.
3 ones = 3 * 1 = 3
6 * 3 ones = 18
Step-by-step explanation:
The sum of 4x^3 +2x-3 and 3x^2-5x-5 is
Answer:
4x³ + 3x² - 3x - 8
Step-by-step explanation:
Step 1: Write expression
(4x³ + 2x - 3) + (3x² - 5x - 5)
Step 2: Combine like terms
4x³ + 3x² - 3x - 8
Answer:
4x^3+3x^2-3x-8
Step-by-step explanation:
Use parentheses and combine like terms.
PLEASE!!!
3. Determine whether the following table of values represents a linear, quadratic, or neither function. Show your calculations.
b) Explain how you know whether it is a linear, quadratic, or neither function.
Answer:
Quadratic function
Explanation:
It is not linear because the difference between y values is not constant.
([tex]10-5\neq 5-2[/tex] for example) In a linear function, the difference between y values would be constant.
Last year Essex Manufacturing paid $3500 for utilities. This year the company used energy-saving techniques to reduce the utility bills by 13% of last year's cost. What was the cost of utilities for Essex Manufacturing this year?
Answer:
$3045
Step-by-step explanation:
You need to find 13% of 3500, and subtract it from 3500.
13% of 3500 = 455
3500 - 455 = 3045
Given: K is between H and J, HK = 2x − 5, KJ = 3x + 4, and HJ = 24. What is the value of x?
Answer: x = 5
Step-by-step explanation:
Can someone plz help me asap!
Answer:
The angle across the given measurements are the same. So there will be a 27 degrees across from the other 27 degrees. The straight line is 180 degrees, so do 180-27=153. The means the other 2 angles are 153 degrees. The other one is the same, but with different measurements. 180-35=145
Step-by-step explanation:
Let the angle adjacent to ∠27° be x .
[tex]∠x + 27 = 180° \: ( \: linear \: pair \: )[/tex]
[tex]x = 180 - 27 \\ ∠x = 153°[/tex]
Let the angle opposite to ∠27° be y .
[tex]∠y = ∠27° \: ( \: vertically \: opposite \: angles \: )[/tex]
Let the angle adjacent to ∠y ( 27°) be w .
[tex]w + ∠27° = 180° \: ( \: linear \: pair \: ) \\ w = 180 - 27 \\ ∠w = 153°[/tex]
Let the angle opposite to ∠35° be p .
[tex]∠p = ∠35° \: ( \: vertically \: opposite \: angles \: )[/tex]
Let the angle adjacent to ∠35° be a .
[tex]∠a + 35° =180 ° \: ( linear \: pair ) \\ a = 180 - 35 \\ ∠a = 145°[/tex]
Let the angle opposite to ∠35° be t .
[tex]∠t = 35° \: ( \: vertically \: opposite \: angles \: )[/tex]
Let the angle opposite to ∠145° be o .
[tex]∠o \: = 145° \: ( \: vertically \: opposite \: angles \: )[/tex]
paint cost 29.95 dollars per gallon, Eumya needs 12.25 gallons to complete a painting project. how much will Eumya spend on paint?
Answer
Step-by-step explanation:
What is the difference of 12-5i and -3 + 4i
where do you put a decimal on 64
Answer:
Whats the question tho
Step-by-step explanation:
10x² - x - 2 = 0
whats thr solutions in fractions
Answer:
X=1/2, -2/5
Step-by-step explanation:
Solve the equation for X by finding a, b, and c of the quadratic then applying the quadratic formula.
Answer:
:) :) :) :) :) :) :0
Step-by-step explanation:
2/5 and 1/2