Answer:
r = 9
Step-by-step explanation:
Given
r + 3 = 3(r - 5) ← distribute
r + 3 = 3r - 15 ( subtract r from both sides )
3 = 2r - 15 ( add 15 to both sides )
18 = 2r ( divide both sides by 2 )
9 = r
Answer:
r = 9
Step-by-step explanation:
r + 3 =3 (r - 5)
1. remove brackets and simplify
r + 3 = 3r − 15
2. Subtract 3r from both sides
r + 3 −3r = 3r −15 −3r
−2r + 3 = −15
3. Subtract 3 from both sides.
−2r + 3 −3 = −15 −3
−2r = −18
4. Divide both sides by -2.
−2r = −18
___ ___
-2 = -2
r = 9
Please mark as brainliest if answer is right
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Please help me with this I don’t know how.
Answer:
J: 2/45
Step-by-step explanation:
You multiply the probabilities together then simplify
2/15 x 5/15
to get 10/225
simplify to get your answer of 2/45
You flip a coin four times and then roll a fair six sided die four times. The coin lands heads up every time in the day shows an even number every time.
Answer:
0.00390625
Step-by-step explanation:
For coins :
Number of rolls, trials, n = 4
P(heads) = 0.5
Using binomial probability formula :
P(x =x) : nCr * p^x q ;
P(obtaining exactly 4 heads) = 4C4 * 0.5^4 * 0.5^0 = 1 * 0. 0625 * 1 = 0.0625
P(even number from 4 coin tosses)
Even faces = (2,4,6)
Total faces = (1,2,3,4,5,6)
P(success) = 3/6 = 0.5
P(obtaining exactly 4 even) = 4C4 * 0.5^4 * 0.5^0 = 1 * 0. 0625 * 1 = 0.0625
Hence, obtaining 4 even outcomes and 4 heads = 0.0625 * 0.0625 =0.00390625
Please help! I just need the second question answered given the first is correct.
Answer: 0.970 ??
Step-by-step explanation:
9x2(x3 - 1) - 4(x3 - 1)
Step-by-step explanation:
[tex] \sf \longmapsto \: {9x}^{2} ( {x}^{3} - 1) - 4( {x}^{3} - 1) \\ \sf \longmapsto \: 9 {x}^{2 + 3} - {9x}^{2} - 4 {x}^{3} + 4 \\ \sf \longmapsto \: {9x}^{5} - {9x}^{2} - {4x}^{3} + 4[/tex]
[tex]\sf Knowledge\:Booster\begin{cases}\bf{\dag}\:\:\underline{\text{Law of Exponents :}}\\\\\bigstar\:\:\sf\dfrac{a^m}{a^n} = a^{m - n}\\\\\bigstar\:\:\sf{(a^m)^n = a^{mn}}\\\\\bigstar\:\:\sf(a^m)(a^n) = a^{m + n}\\\\\bigstar\:\:\sf\dfrac{1}{a^n} = a^{-n}\\\\\bigstar\:\:\sf\sqrt[\sf n]{\sf a} = (a)^{\dfrac{1}{n}}\end{cases}[/tex]
The following are the temperatures of 10 days in winter in °C.
-3, 3, 8, 4, 5, 8, -5, 6, -4, 3
Work out the mean temperature.
Johnny's restaurant bill was $18.75, and the tax was 6.5%. Johnny left a 20% tip on the pre-tax bill How much did Johnny pay in
total?
A)
$22.09
B)
$22.84
C)
$23.72
92
$23.96
Answer:
$23.72
Step-by-step explanation:
If Johnny's restaurant bill was $18.75, and the tax was 6.5%. Johnny left a 20% tip on the pre-tax bill, Johnny pay $ 23.72 in total. Option C is correct.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that, Johnny's restaurant bill was $18.75, and the tax was 6.5%. Johnny left a 20% tip on the pre-tax bill.
We have to find the amount Johnny pays in total. Suppose the amount is x,
x=$18.75 + 6.5% of 18.75 + 20% of 18.75
x=$18.75 + $1.21875+$3.75
x=$ 23.71 ≈23.72
Thus, if Johnny's restaurant bill was $18.75, and the tax was 6.5%. Johnny left a 20% tip on the pre-tax bill, Johnny pay $ 23.72 in total. Option C is correct.
Learn more about the percentage here:
brainly.com/question/8011401
#SPJ6
What is the domain of the following graph? Please don't put links down I cant download them.
Answer:
-infinity, infinity
Step-by-step explanation:
Domain is x, and in a quadratic equation like this one the x axis goes on forever. So the first answer of -infinity, infinity is correct.
Answer:
(-inf, inf)
Step-by-step explanation:
Remember, the domain of the function looks at purely the input values (x-axis), not your output values (y-axis).
Keeping this in mind, you can see that the x values stretch from the far left, -inf to the far right +inf.
Remember, as infinities aren't considered actual values, you put them in parentheses. This means your answer is (-inf, inf).
Solve the following equation to find the value of x
[tex]45 + x = 50[/tex]
Answer:
x=5
Step-by-step explanation:
Sorry if wrong :> Hope i helped! Have a awesome day!!! You're a great hooman ^_^ Please mark brainliest !!
Answer:
45 plus 5 equal 50
Step-by-step explanation:
help me please i will give brainlyest
Answer:
Answer: 1645.
Step-by-step explanation:
Given data:
No. Of days of rental = 11 days.
Solution:
= 325 + 120d
Input the data for (d) into the equation
= 325 + 120(11)
= 325 + 1320
= 1645.
Step-by-step explanation:
Karen and Ricardo are 279 miles apart driving towards each on the same route. Karen drives at a speed of 59 miles per hour and Ricardo drives at a speed of 65 miles per hour. In how many hours will they meet?
Step-by-step explanation:
Ok
Had to solve in the comment section because I couldn't find the answer button before. It Just appeared Lol.
You can still check the solution in the first guy's comment section
d=vt will represent the Motion of Both persons
for Karen
d=59t
for Ricardo
d=65t
They're both 279miles away from each other
Meaning
Dk + Dr = 279
59t + 65t = 279
124t=279
t=279/124
t= 2.25hrs.
You can change to seconds if thats how the answer waa presented.
Carl has 4 cups of cheese he needs 1/2 a cup of cheese for each mini pizza how many mini pizzas can he make? PLEASE HELP ASAP
Answer:
He can only make 8 cheese pizzas
Step-by-step explanation:
4➗1/2=8
1/2+1/2+1/2+1.2+1.2+1.2+1.2+1.2=8
can someone help me, please
Answer:
The fourth one is -2, -4
Step-by-step explanation:
Hope this helps :)
Find the value of d that makes the equation true.
d-(-8) = -14
A 112
B. 96
C. 112
D. 150
Answer:
C. 112
Step-by-step explanation:
d/(-8)=-14
In division, to get a negative answer, you require a positive and a negative number. So you can eliminate option A. Then, if you multiply -8x-14, you get a positive value of 112.
Part a) Which animal is the fastest?
Part b) What is the speed of that animal?
Answer:
cheetah and 70 mph
If King sets the price at $2.50 per doll how many disappointed customers will each store have during this week?.explain your process in complete sentences
Answer: about TWO
Step-by-step explanation:
The probability of Jamie making money investing in bonds is \dfrac{1}{20} 20 1 start fraction, 1, divided by, 20, end fraction. The probability of Jamie making money investing in stocks is 82\%82%82, percent.
Complete question :
The probability of Jamie making money investing in bonds is 1/20. The probability of Jamie making money investing in stocks is 82%. Which of these events is more likely?
Answer:
Hence, It is more likely that Jamie will make money by investing in stocks.
Step-by-step explanation:
Probability of making money Investing in Bond = 1/20
Probability of making money Investing in stocks = 82%
Comparing the two probabilities, we can either convert both to decimal, fraction or percentage ;
Converting to percentage :
Probability of making money Investing in Bond = 1/20 = 0.05 = 0.05 * 100% = 5%
Probability of making money Investing in stock = 82%
82% > 5%
Hence, It is more likely that Jamie will make money by investing in stocks.
Answer:
Jamie makes money investing in stocks.
Probability of making money Investing in stocks = 82%
what is a common denominator for 1/6 and 3/5
Answer:
30
Step-by-step explanation:
Answer: 30
Hopes this helps
The area of a square in square feet is represented by z^(2)+12z+36. Find an expression for a side length of the square.
Answer:
Side is equal to [tex](z+6)[/tex] feet.
Step-by-step explanation:
A square is a four sided polygon in which all sides are equal, diagonals are equal and each angle is equal to [tex]90[/tex]°
Area of a square = side × side
Area of a square [tex]=z^2+12z+36[/tex]
Here, write [tex]12z=6z+6z[/tex]
Therefore,
Area of a square [tex]=z^2+6z+6z+36[/tex]
[tex]=z(z+6)+6(z+6)[/tex]
[tex]=(z+6)^2[/tex] square feet
So,
side × side [tex]=(z+6)^2[/tex]
This implies side is equal to [tex](z+6)[/tex] feet.
Work out the volume of the cuboid 4cm 10cm 15cm
Answer:
600 m³
Step-by-step explanation:
Attached Below
If it helps, mark as brainliest. : )
how far will each person run
17 You already know that a number times its reciprocal equals 1. For example, 3.-
Now complete this equation: 65 .6
LINKS DO NOT WORK
Answer:
Step-by-step explanation:
6^5
------- = 1 as expected
6^5
Mrs. Fulcher had 14 gallon of milk, and she bought 12 gallon more. Her family then drank 58 gallon of milk. How much milk does Mrs. Fulcher have left?
Answer:
Mrs. Gallon is left with -22 gallon of milk
Step-by-step explanation:
Mrs. Fulcher had 14 gallon of milk
She brought 12 gallon of more milk
Milk consumed by her family - 58 gallon
Milk left with Mrs. Fulcher = 14 + 12 -58 = -22
Joy starts with $18, and then withdraws $1 every 4 weeks, what is the equation
Answer:
The equation is how many weeks does he need to wait to get $18?
10 added to the difference between t and 8
Answer:
(t-8)+10
Step-by-step explanation:
1/2 cm +1/2 cm +3/4 cm +3/4 cm
Answer:
3 1/2cm
Step-by-step explanation:
which number sentence states that n is at LEAST 20?
Answer:
D
Step-by-step explanation:
that symbol means greater or equal to. so at LEAST it’s 20. but it could be more
Answer: D
it is saying it is equal to or greater than 20
hii! please help asap. i’ll give brainliest
Answer: B
Step-by-step explanation:
Answer:
Median = 3500
Step-by-step explanation:
Data Set: 1850, 3500, 4200, 2310, 4260
=> Let's set this to the ascending order (least to greatest) first:
1850, 2310, 3500, 4200, 4260
=> Now as you cancel out the first value, cancel out the last one, and do this until u reach down to only one number:
So our median = 3500
Hope this helps!
-2+2x=-3+5x
answer now answer now i need help i hate maths hlep me lol
SUCK IT GRREEN BOYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY I NEEDED TO ADD MORE ;LETTERS SO IM DOING THIS
Answer:
x= 1/3 :)
Step-by-step explanation:
Have a nice dayyyyyyyyyyyy! <3
Hey do any of you guys know the answer to this question? I’m struggling with it and still don’t know the answer plz help me! Thanks!
I am not completley sure but i think its (3)
Find the equation of the tangent to the curve
[tex]y = \frac{4}{x} [/tex]
at
[tex](8. \frac{1}{2} )[/tex]
9514 1404 393
Answer:
y = -x/16 +1
Step-by-step explanation:
The slope is at any point x is ...
y' = -4/x^2
so, at x=8, the slope is ...
m = -4/8^2 = -4/64 = -1/16
The point-slope form of the equation of the line is ...
y -k = m(x -h) . . . . . . . line with slope m through point (h, k)
Then the line with slope -1/16 through point (8, 1/2) is ...
y - 1/2 = -1/16(x -8)
y = -1/16x +1/2 + 1/2 . . . . . eliminate parentheses, add 1/2
y = -1/16x +1 . . . . . equation of the tangent line