Answers
Answer:
r=-3
Step-by-step explanation:
−18=9r+9
Step 2: Flip the equation.
9r+9=−18
Step 3: Subtract 9 from both sides.
9r+9−9=−18−9
9r=−27
Step 4: Divide both sides by 9.
9r /9 =-27/9
Related Questions
ASAP!Hey I’m confuse help!! 10 points
Answers
Answer:
i think you got them right
Step-by-step explanation:
Can someone please help me with this question:)
Answers
Answer:
x = 12 and y = 24 Can I get brainiiest
Step-by-step explanation:
We know (3x + 34) and (2x + 46) are vertical to each other so they equal the same measure. We will solve it like this.
3x + 34 = 2x + 46 (subtract 34 on each side)
3x = 2x + 12 (subtract 2x on both sides)
x = 12
Now plug in
3(12) + 34 = 2(12) + 46
36 + 34 = 24 + 46
70 = 70
Now all you have to do is do the other pair of angle
4y + 14 + 70 = 180 (we are using what we already know about 70)
(collect like terms)
4y + 84 = 180 (subtract 84 on both sides)
4y = 76 (divide by 4)
y = 24
(plug in)
4(24) + 14 = 6(24) - 34
96 + 14 = 144 - 34
110 = 110
5.1 x 10
Please help
Answers
Answer:
51
Step-by-step explanation:
Because 5.1 times ten equals 51 because if you times ten by 5 u get 50 and then do .1 times ten you get 1
Why would someone choose to use a graphing calculator to solve a system of linear equations instead of graphing by hand? Explain your reasoning
Answers
Answer:
A graphing calculator is more accurate than graphing by hand. If the slope and/or y-intercept is a fraction or decimal, it is more difficult to accurately graph by hand.
x - y = 5 in slope intercept form
Answers
Step-by-step explanation:
Hey there!
Given;
x-y = 5
Slope intercept form: y = mx+c.
Now try to make it in y= mx+c form.
Take"-y" to right side and and 5 to left side.
x-5= y
Therefore, y = x-5
Hope it helps..
Point Ris on line segment QS. Given QR = 3x – 8, QS = 3x, and
RS = 2x, determine the numerical length of RS.
Answer: RS
Submit Answer
attempt 1 out of 2
Answers
Answer:
RS = 8
Step-by-step explanation:
Given that R is on QS , then
QR + RS = QS , substitute values
3x - 8 + 2x = 3x , that is
5x - 8 = 3x ( subtract 3x from both sides )
2x - 8 = 0 ( add 8 to both sides )
2x = 8 ( divide both sides by 2 )
x = 4
Thus
RS = 2x = 2 × 4 = 8
-0.4 divided by 0.25
Answers
is the ecosystem going down bc of pollution
Answers
Answer: yes. but luckily we have vsvo girls who are going to save the world. still waiting for them tho.. where did they go? are they hibernating or sum?
Step-by-step explanation:
A lion runs 50 mph and a cheetah runs 74 mph. How far does the cheetah run in the time it takes the lion to run 75 miles? heLp plEaz
Answers
Answer:
I belive it is 99 but am not sure
Step-by-step explanation:
The cheetah runs 24 mph faster than the lion
Answer: 111 miles
Step-by-step explanation: I’m bad with explanations...
The work W required to move a particle from a far distance to within radius r of another particle varies jointly as the product of the two particles' charges q1 and q2 and inversely as the radius r. Write a formula that models this proportion. (Use k as the constant of variation.)
Answers
Answer:
W = kq1q2 / r
Step-by-step explanation:
W varies jointly as the product of q1 and q2 and inversely as radius r
Product of q1 and q2 = q1q2
W = (k*q1"q2) / r
W = kq1q2 / r
Where,
W = work
q1 = particle 1
q2 = particle 2
r = radius
k = constant of proportionality
The answer is W = kq1q2 / r
Using proportions, it is found that the formula is:
[tex]W = k\frac{q_1q_2}{r}[/tex]
Work varies jointly as the charges, thus, the charges are in the numerator.Inversely as the radius, thus, the radius is in the denominator.There is a constant of proportionality k, which multiplies the fraction;Then, the formula is:
[tex]W = k\frac{q_1q_2}{r}[/tex]
A similar problem is given at https://brainly.com/question/18131403
6x + 9 =27 (I need help please )
Answers
Answer:
X=3
Step-by-step explanation:
6x=27-9
6x=18/6
x=3
Answer:
x=3
Step-by-step explanation:
Alrighty lets begin.
First, subtract 9 from 9 and from 27. Your equation will look like:
6x=18
Now, divide 6 from 6x and from 18. It would look like:
6x/6 = 18/6
Then cancel out the 6's.
And finally, simplify 18/6 and you get 3.
Your answer is x = 3
<<Please mark Brainliest if possible ;) have a nice day!>>
convert 3x- y=7 to slope intercept form
Answers
Answer:
y = 3x - 7
Step-by-step explanation:
-y = -3x + 7
divide both sides by -1 to get rid of the negatives
y = 3x - 7
1. Tommy washes the neighbors' windows to earn money.
He earns $63 for 6 hours of washing windows.
a. At what unit rate (dollars/hour) does Tommy get paid?
b. Complete the table to show how much he earns for various numbers of hours of washing
windows
Time (hours)
Earnings ($)
2
6
63
10
Answers
Answer:
divide 63 by 6 with is 10.50 so he earns 10.5 dollars the hour then if he works 2 hours just multipley 10.5 by 2
what is the answer for x/1.2=-7
Answers
Answer:
x = -8.4
Step-by-step explanation:
You do the inverse operations:
The inverse of division is multiplication, so:
x/1.2 = -7 (x 1.2) - multiply by 1.2
x = -8.4
Explanation, to get the missing part yo go backwards and multiply -7 times 1.2 to get the -8.4 hope this helps
Jim is investing in the stock market. Jim is hoping to earn $2,000 in interest in order to take a trip to Mexico. Stock A earns 4% interest and Stock B earns 7% interest, and Jim has a total of $32,000 to invest. How much should he invest in each in order to earn $2,000 interest?
Answers
Given:
Total amount for investment = $32000
Rate of interest for Stock A = 4%
Rate of interest for Stock B = 7%
Jim is hoping to earn $2,000 in interest.
To find:
The amount of investments in Stock A and Stock B.
Step-by-step explanation:
Let amount of investments in Stock A = $x
Amount of investments in Stock B = $y
Total amount for investment = $32000
[tex]x+y=32000[/tex] ...(i)
Rate of interests in Stock A and Stock B are 4% and 7%. Total interests is $2000.
[tex]0.04x+0.07y=2000[/tex] ...(ii)
From (i) and (ii), we get
[tex]0.04x+0.07(32000-x)=2000[/tex]
[tex]0.04x+2240-0.07x=2000[/tex]
[tex]-0.03x=2000-2240[/tex]
[tex]-0.03x=-240[/tex]
Divide both sides by -0.03.
[tex]x=\dfrac{-240}{-0.03}[/tex]
[tex]x=8000[/tex]
Put x=8000 in (i).
[tex]8000+y=32000[/tex]
[tex]y=32000-8000[/tex]
[tex]y=24000[/tex]
Therefore, the amount of investments in Stock A and Stock B are $8000 and $24000 respectively.
d)) The ratio of the monthly income and expenditure of Sunayana is 5 : 3. If she
increases her income by Rs 5,000 and decreases the expenditure by Rs 3,000, the
new ratio becomes 5:2. Find her income and expenditure.
Answers
Answer:
Sunayana's income is ₹25000 and expenditures are ₹15000.
Step-by-step explanation:
Let i denote the monthly income and e denote the expenditures.
We know that the ratio of the monthly income to expenditure is 5:3. So, we can write the following proportion:
[tex]\displaystyle \frac{i}{e}=\frac{5}{3}[/tex]
Let's multiply both sides by e. This yields:
[tex]\displaystyle i=\frac{5}{3}e[/tex]
We know that when the income is increased by 5000 and the expenditures are decreased by 3000, the new ratio is 5:2. So, we can write the following proportion:
[tex]\displaystyle \frac{i+5000}{e-3000}=\frac{5}{2}[/tex]
Let's multiply both sides by [tex](e-3000)[/tex]:
[tex]\displaystyle i+5000=\frac{5}{2}(e-3000)[/tex]
Since we know that [tex]i=\frac{5}{3}e[/tex], substitute:
[tex]\displaystyle \frac{5}{3}e+5000=\frac{5}{2}(e-3000)[/tex]
So, let's solve for the expenditures. Distribute the right:
[tex]\displaystyle \frac{5}{3}e+5000=\frac{5}{2}e-7500[/tex]
Subtract [tex]\frac{5}{2}e[/tex] from both sides:
[tex]\displaystyle -\frac{5}{6}e+5000=-7500[/tex]
Subtract 5000 from both sides:
[tex]\displaystyle -\frac{5}{6}e=-12500[/tex]
Multiply both sides by -6/5. So, the expenditures are:
[tex]e=\text{Rs }15000[/tex]
We can use the original ratio to find Sunayana's income:
[tex]\displaystyle i=\frac{5}{3}e[/tex]
Substitute 15000 for e. Evaluate:
[tex]\displaystyle i=\frac{5}{3}(15000)=\text{Rs }25000[/tex]
So, Sunayana's income is ₹25000 and expenditures are ₹15000.
And we're done!
Answer: Income = 25000, Expenditures = 15000
Step-by-step explanation:
A ratio of 5:3 can also be written in fraction form as [tex]\dfrac{5}{3}[/tex] (which is in simplified format from [tex]\dfrac{5x}{3x}[/tex]).
Adding 5000 to 5x results in 5x + 5000
Subtracting 3000 from 3x results in 3x - 3000
--> [tex]\dfrac{5x+5000}{3x-3000}[/tex]
The new ratio of 5:2 can be written in simplified fraction form of [tex]\dfrac{5}{2}[/tex].
Set the fractions equal to each. Then cross multiply and solve for x.
[tex]\dfrac{5x+5000}{3x-3000}=\dfrac{5}{2}[/tex]
5(3x - 3000) = 2(5x + 5000) Cross multiplied
15x - 15000 = 10x + 10000 Distributed
5x - 15000 = 10000 Subtracted 0x from both sides
5x = 25000 Added 15000 to both sides
x = 5000 Divided 5 from both sides
The original ratio of 5 : 3 --> 5x:3x
where 5x is the income and 3x is the expenditures results in:
income = 5x expenditures = 3x
= 5(5000) = 3(5000)
= 25000 = 15000
In New Jersey the highest elevation is 1,803 feet above sea level and the lowest elevation is-2 feet below sea level. What is the difference in elevations?
Answers
Answer:
1805 feet
Step-by-step explanation:
1803-(-2)
1805
Jacob's job pays him $12.50 per hour. Which equation can be used to find Jacob's salary,
y, if he works for x hours? *
(5 Points)
A. y = x/12.50
B.y = 12.50 + x
.
C.y = 12.50 - x
D.y = 12.50x
Answers
Answer:
D
Step-by-step explanation:
Answer:
idek I mean you did it to me so lol
Which equation shows a proportional relationship between x and y a) y=2×+1 b) y+4×=8 c) y=5×
Answers
• y=2x+1
• y+4x=8
• y=5x
Then to find a proportional relationship represented by an equation, we look for an option where its y=#x, so we can REMOVE option B. And so your answer is C. as y=5x is a proportional relationship between x and y since its not adding or subtracting a number from either y or x.
It was -8°F in the morning. The temperature increased throughout the day, and in the afternoon, it was 11°F. How much did the temperature change?
Answers
Answer:
19
Step-by-step explanation
This is simple
I will teach you a simple technique
Count them, don't count the -8
-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
You are just subtracting, but instead counting.
I said not to count -8, because normally in subtraction, we normally don't count the number we are subracting.
for example
8 - 7 = 1
so counting technique
8 - 7, 6, 5, 4, 3, 2, 1
there are 7 numbers, if i didn't count the 8
so it is right.
hope you understand :-)
Maria makes $6.00 an hour plus 5% commission for telephone sales. Yesterday, Maria worked 8 hours and had sales of $600.00. How much did Maria make yesterday? Explain your answer.
Answers
Answer:
21
Step-by-step explanation:it's 22222222211111211111112211
At the movies, children's tickets are $6 each and adults' tickets are $10 each. Shandra buys 14 tickets. Let a be the number of adults going to the movies. Enter an algebraic expression in the box to represent the total price Shandra pays. Do not include the dollar sign in your answer.
Answers
Answer:
y=6x+10aStep-by-step explanation:
let the number of children be x
and the number of adults be a
let the total price be y
given that children tickets are $6 each
also, an adult ticket is $10
x+a=14-------1
y=6x+10a----2
Therefore the expression for the total price can be expressed as
y=6x+10aAnswer:
10a + 6(14-a)
Step-by-step explanation:
Can't offer an explanation right now, Ill come back later and add it.
I had this same problem, this is the correct answer.
Gabriella had some candy to give to her four children. she first took seven pieces for herself and then evenly divided the rest among her children. each child received two pieces. with how many did she start with
A) 15
B)13
C)16
D)30
Answers
Soo 4x2=6 then we add the other 7 the mom took and it’s 13 so b is your answer:)
Answer:
The answer is 15
Step-by-step explanation:
because it is 2 two each child and there are four and the mom has 7
3-8
18
Which expressions equivalent to
Select all that apply.
1
A
34
1
B
312
C 3-4
D 32
E
1
32
F 3-12
Answers
Answer:
A and C
Step-by-step explanation:
When you are dividing exponents you subtract. So for this problem -8 - -4 = -8 + 4 = -4. This means that the new exponent would be -4.
When you have a negative exponent, the equation is a fraction. As an example x^-5 would be equal to 1/x^5. For this equation, since you know that the new exponent is -4, an equivalent equation would be 1/3^4.
Hope this helps
Nick is making a fruit salad. He buys apples for $1.29 per pound and oranges for $1.35 per pound. He spends no more than $12. Let x represent the number of pounds of apples that Nick buys. Let y represent the number of pounds of oranges that Nick buys. Which inequality represents this situation? 1.29x+1.35y<12 1.29x+1.35y≥12 1.29x+1.35y>12 1.29x+1.35y≤12
Answers
Answer:$15.95
Step-by-step explanation:
You have to Add to get your answer I'll show you how I got $15.93:
1.29+1.29=$2.58
2.58+1.35=$3.93
3.93+12=$15.93
Your answer is:$15.93
hope this was helpful:)
Asap need help um plz help
Answers
Answer:
3/5
-----------------
the answer is the first one, 3/3.
Convert 8 centimeters to millimeters.
Answers
Answer:
80mm
Step-by-step explanation:
As 1 cm = 10 mm
8 cm=80 mm
Answer:
80 millimeters
Step-by-step explanation:
Well you convert it
Helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp[[[[[[[[[Erica deposited $450 in a bank account at the beginning of the month. A payment of $35.20 is automatically deducted each month for her gym membership. If she makes no other deposits or withdrawals, how much money is in Erica’s account at the end of four months?
Answers
$309.20
Explanation:
We know that..
- Erica started off with $450 in her bank account
- $35.20 gets taken out of her bank account every month
Using this information, we can write an equation:
E = 450-35.2m
E= the amount of money Erica has
m= the number of months that pass
And now, all we have to do is substitute m as 4 to find out how much money is in Erica’s account after 4 months.
E = 450-35.2m
E=450-35.2(4)
E=309.2
Therefore, there would be $309.20 left in Erica’s bank account after 4 months.
I
- Marissa is trying to lose some weight. So far she has lost 13 pounds. Her goal is
to lose 51 pounds. She is on a calorie counting plan that will allow her to lose
2 pounds a week. What is the minimum number of weeks she must follow her
plan before she hits her goal?
Answers
Answer:
6
Step-by-step explanation:
The monthly mean salaries and standard deviations of four college students are given below.
Student
Clarissa
Abi
Kaila
Shenika
Mean
$345
$598
$812
$208
Standard Deviation
12.53
8.99
15.29
7.67
Which statement must be true?
O The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.
O The monthly salary of Kaila is less spread out than the monthly salary of Abi.
O The monthly salary of Abi is less spread out than the monthly salary of Shenika.
The monthly salary of Clarissa is less spread out than the monthly salary of Abi.
Answers
Answer:
The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.
Answer:
A) The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.
Step-by-step explanation:
I took the test on edge