The variables a and b vary directly, and b=8 when a=2.
What is the direct variation equation that relates a and b?
A.
b=2a.
B.
b-4a
C
b=8a
D
b=16a
Answer: b= 4a
( This is the correct answer, which is supposed to be option b, but a negative sign was put instead of an equal sign, so you can change appropriately)
Step-by-step explanation:
Given that a and b vary directly, can be expressed as
a ∝ b
Introducing the constant of proportionality, k, we have that
a = kb
so when a= 2, b= 8 and the constant becomes
2 = k8
k = 2/8=1/ 4
a= 1/4b
Such that
b=4a
Convert the decimal to a fraction in simplest form:
0.333
O 533/1000
1
O 333 —
10
1
O 3 —
333
O 333/1000
Answer:
Decimal 0.333 to a fraction in simplest form is: [tex]\frac{333}{1000}[/tex]
Step-by-step explanation:
Given the decimal
[tex]0.333[/tex]
Multiply and divide by 10 for every number after the decimal point.
There are three digits to the right of the decimal point, therefore multiply and divide by 1000.
Thus,
[tex]0.333=\frac{0.333\cdot \:\:1000}{1000}[/tex]
[tex]=\frac{333}{1000}[/tex] ∵ 0.333×1000 = 333
Let us check if we can reduce the fraction [tex]\frac{333}{1000}[/tex]
For this, we need to find a common factor of 333 and 1000 in order to cancel it out.
But, first, we need to find the Greatest Common Divisor (GCD) of 333, 1000
Greatest Common Divisor (GCD) :
The GCD of a, b is the largest positive number that divides both a and b without a remainder.
Prime Factorization of 333: 3 · 3 · 37
Prime Factorization of 1000: 2 · 2 · 2 · 5 · 5 · 5
As there is no common factor for 333 and 1000, therefore, the GCD is 1.
Important Tip:
As GCD is 1, therefore the fraction can not be simplified.Therefore, decimal 0.333 to a fraction in simplest form is: [tex]\frac{333}{1000}[/tex]
4 x³ + 8x what is the answer
Select the correct answer.
Consider matrices A and B:
3
6
-85
14 -
BE 0
A=
Which matrix represents A - B?
O A.
1 6
-67
3
B.
1
OC.
D.
These two matrices cannot be subtracted.
Answer:
c the answer is c bc i got a 5/5 on the test
Step-by-step explanation:
Answer:
I got it right
Step-by-step explanation:
3m + 5 > 2(m - 7)
A m>-12
By>12
Cm>-19
Dm>19
Answer:
C. m > -19Step-by-step explanation:
3m + 5 > 2(m - 7)
3m + 5 > 2m - 14
3m - 2m > -14 - 5
m > -19
MARK ME BRAINLISTx + 3 = −x − 3
Solve for x
[tex]x = - 3[/tex]
Explanation :[tex]x + 3 = - x - 3[/tex]
[tex]x + 3 + x = - x - 3 + x[/tex]
[tex]2x + 3 = - 3[/tex]
[tex]2x = - 3 - 3[/tex]
[tex]2x = - 6[/tex]
[tex]x = - 6 \div 2[/tex]
[tex]x = - 3[/tex]
The quantities x and y are proportional. Use each of the integers 1-5 to complete the table. **CORRECT ANSWER IS GIVEN BRAINLEST POINTS**
Answer:
x 10 4 6 1
y 5 2 3 0.5
Step-by-step explanation:
You have to start with a guess and see if it works. If it works, you're done. If it doesn't work, you need to make a difference guess.
I'll start by guessing that above the 0.5 is a 1.
If that is correct, then every x value is double the y value below it.
5 goes below the 10. 3 goes below the 6. Then you have 4 and 2 left.
That is every whole number from 1 to 5. It works.
x 10 4 6 1
y 5 2 3 0.5
Calcule as potências a) (-5)⁴ b) (+2)⁶ c)(+12)² d)(+15)¹ e) (-1)²⁰ f) (-4)⁵ g)(-15)⁰ h) (-2)⁷ i) (+15)⁰ j) (+15)¹ k) (+15)² l) (-15)² mim ajudemmmm
Answer:
Follows are the solution to the given points:
Step-by-step explanation:[tex]a) \ \ (-5)^4 = -5 \times -5 \times -5 \times -5 =-625 \\\\ b) \ \ (+2)^6= 2 \times2 \times2 \times2 \times2 \times2 =64 \\\\ c)\ \ (+12)^2 = 12 \times 12 = 144 \\\\ d)\ \ (+15)^1= 15 \\\\ e)\ \ (-1)^{20} = -1 \times -1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1\times-1= 1[/tex]
[tex]\\\\ f) \ \ (-4)^5 =-4 \times -4 \times-4 \times-4 \times-4 =-1024\\\\ g)\ \ (-15)^0= 1 \\\\ h) \ \ (-2)^7= -2 \times-2 \times-2 \times-2 \times-2 \times-2 \times-2 =-128 \\\\ i) \ \ (+15)^{0}=1 \\\\ j)\ \ (+15)^1 =15\\\\ k)\ \ (+15)^2 = 15 \times 15=225\\\\ l)\ \ (-15)^2= -15 \times -15=225[/tex]
Company A charges a flat fee of $20 and $24.95 per hour to install cable. Write an equation in slope-intercept form to represent the company's charges.
Answer:
y = 24.95x + 20
4 x 0.24 without using calculator
Answer:
0.96
Step-by-step explanation:
I know that 24 x 4 = 96, then you just put a zero in front, making 0.96
Hope this helped
Answer:
0.96
Step-by-step explanation:
Factor and show steps:
Answer:
2(n-2)^2
Step-by-step explanation:
Sandra bought 4 pounds of sweet potatoes for $6.28. What is the cost per pound of the sweet potatoes?
Answer:
Cost of 1 sweet potato is $6.28 divided by 4 which will give $1.75
Answer:
$1.57
Step-by-step explanation:
What we know:
- There are 4 pounds of sweet potatoes
- 4 pounds of sweet potatoes cost $6.28
To find the cost per pound of sweet potatoes, divide $6.28 by 4.
6.28 ÷ 4
= $1.57
Therefore, the cost per pound of sweet potatoes is $1.57.
I really need the help
If you randomly select a letter from the phrase "Terrace Park Wolves rule," what is the probability that you select a consonant? (Your answer must be in the form of a reduced fraction.)
The probability of selecting a consonant is 0.619
What is Probability?
The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible
The value of probability lies between 0 and 1
Given data ,
The phrase is = "Terrace Park Wolves rule"
The number of letters in the phrase = 21 letters
The number of consonants in the phrase = 13 letters
Now ,
The probability of choosing a consonant from the given set of letters =
number of letters in the phrase / number of consonants in the phrase
Probability of choosing a consonant from the given set of letters = 13 / 21
Probability of choosing a consonant from the given set of letters = 0.619
Hence , The probability of selecting a consonant is 0.619
To learn more about probability click :
https://brainly.com/question/17089724
#SPJ5
95 degrees (5x) degrees
Step-by-step explanation:
5x=95
X=95-5
X=90
Therefore ans is 90
Mariah babysits for her neighbor every weekend. She earns $10 an hour for babysitting 6 hours each weekend. What term can Mariah use to describe the money she makes?
Answer:
Fixed income
Step-by-step explanation:
The $10 an hour won't change. If it did it would be a variable expense or income.
Hope this helped
❤️
Answer:
Fixed income
pls mark brainliest
20% of what number is 18
Answer:
90
Step-by-step explanation:
............................
Answer:
3.6
Step-by-step explanation:
lol
Jorge gives an equal number of marbles to 6 friends. Which could be the total number of marbles he gave to his friends?
Answer:
D. 60
Step-by-step explanation:
To find an equal number of numbers the sum has to be equal to 6*x.
Answer:
If he gave it all to his friends then its D. If it is counting him too then C.
Step-by-step explanation:
Please help me<3 <3 <3 <3 <3
Answer: (B) SinA = 4/5
Step-by-step explanation: Sine= O/H or opposite of hypotenuse so in regards to the triangle opposite is 28 and hypotenuse 35 or 28/35 which also equals 4/5
Helpppp!! I’ll mark brainliest if you put it In fraction form as well!!!
Yup its me again the idiot
Which inequalities would have an open circle when graphed? Check all that apply.
t Less-than-or-equal-to 25
-2.5 Less-than-or-equal-to m
x > 5.4
One-half less-than x
x > 0
Answer:
x > 5.4
One-half less-than x
x > 0
Step-by-step explanation:
use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to"
Answer:
if they have < or > then the inequality has and open circle
if they have [tex]\leq or \geq[/tex] then the inequality has a closed circle
Step-by-step explanation:
Please help ! (only right answers please )!
Answer:
c
Step-by-step explanation:
Melissa had $2,316.00 dollars in her bank account one year ago. Over the past year, her
bank account balance increased by 24.5%. What is the current balance of Melissa's
bank account?
Answer:
$2895 is the current balance of Melissa's bank account.
Could I have some help with the two in the photo please? Thanks.
Answer:
a:5√3+3√5
b:4(√2+√7)
Step-by-step explanation:
Used photomath witch is an app that takes pictures of equations and solves them. 100% recommend
Answer:
a)5squareroot of 3 +3squareroot of 5
b)4squareroot of 2 and 4squareroot of 7
Step-by-step explanation:
Lin’s father is paying for a $20 meal. He has a 15% off coupon for the meal. After the discount, a 7% sales tax is applied. He does NOT add tip
Margie wants to collect 3,600 cans of food to donate to a community food bank. She plans to collect an equal number of cans for 4 months.
How many cans c should she collect each month?
What should I put in each box?
Answer:
90
Step-by-step explanation:
the area of triangle is 48 cm sq,its base is 12 cm. find its altitude
Answer:
its altitude is 8 cm
Step-by-step explanation:
1/2× base ×altitude =48
1/2×12× al =48
6×al =48
al = 8
Jack can paint 1 house in 3 days. Find Jack’s rate per day for painting houses.
Answer:
Jack can paint a certain room in 3 hours, lisa is 4 hours, and sue in 2 hours. ... Jack's rate is one-third of a job per hour, Lisa's is one-fourth of a job per hour and Sue's is one-half of a job per hour. If they all work together for t hours, one whole job is completed. t/3 + t/4 + t/2 = 1 .
Step-by-step explanation:
Answer:
ok so hwo u do it it is 1/3 because ur finding rate thsi will help u get ur answer which is 0.333333 ex btu simplfed 0.33
Step-by-step explanation:
Rosa had $275. This table shows the items she purchased from the mall.
how much money did she had left over
out of the total 20000 people, it was found that 30% like to listen to hindi flim songs 20% like to listen to english music 15% to classical music and the rest like to listen other kind of music . find the extra number of people who like each type of music
Answer:
Hindi Film: 6,000 people
English: 4,000 people
Classical: 3,000 people
Other: 7,000 people
anyoneeeeeee knows we thissds