Answer:
Error: +3x should be -3x
x should equal 3
Step-by-step explanation:
In this problem, you have to pay attention how values are transferred from one side to the other. This includes paying attention t the signs.
In 3x + 4 = 8x - 11, you want to try an keep all the values positive
3x + 4 = 8x - 11
- 3x - 3x
4 = 5x - 11
+11 +11 <--This part of the equation was correct.
15 = 5x
/5 /5 <--This part of the equation should result in dividing by 5
3 = x
Hope this helps!
PLEASE HELP WILL MARK BRAINLIEST
Keiko plans to watch 2 movies each month. Write an equation to represent the total number of movies n that she will watch in m months.
Answer:
n=2m
Step-by-step explanation:
If she watches 2 movies a month (2m), plug in any number and it will give you how many movies (n) she will watch in however many months.
Answer:
2n
I hope I helped you! If I am correct, please makr me brainiest. Thanks!
50+50+5050 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 30
Answer:
5530
Step-by-step explanation:
Answer:
5530Step-by-step explanation:
50 times 9 equals 450
then add the 5050 and 30 to get 5080
then add up 5080 and450 and get your answer of 5530
Find The total number of unit cubes that fill the entire prism.
Answer:
64
Step-by-step explanation:
put branileist
Answer:
Step-by-step explanation:
72 cuz u multiply 6x3x4=72
-1 + n/2 = -11
HELP
THNX
Answer:
n = -20
Step-by-step explanation:
[tex]-1 +\frac{n}{2} = -11\\[/tex] add 1 on each side
[tex]\frac{n}{2} = -11 + 1\\\\\frac{n}{2} =-10[/tex]multiply by 2
n = -20
The graph shown can be used to convert between kilometres and miles....
Answer:
where's the picture I can't see it
According to the graph, I can see
42 Miles = 68 Kilometers
32 Miles = 22 Kilometers
The distance between London and Cardiff is 240 Kilometers
Is mile in the metric system?
Mile is under the Imperial System and
Kilometers is under the metric system.
What is metric system?The metric units used for measuring length, mass, area and capacity. For example, millimeters, centimeters, meters, and kilometers are the metric units of the measurement of length. Grams and kilograms are the units for measuring weight.
Learn more about Measuring System here
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solve for a side in right triangles
Answer:
2.88?
Step-by-step explanation:
If 80% of an item is $144.00, what is the original price?
Answer:
180
Step-by-step explanation:
Answer:
180
Step-by-step explanation:
the original price * 80% = 144
Change to decimal form
the original price * .80 = 144
Divide each side by .80
the original price * .80/.80 = 144/.80
the original price =180
Work out the surface area of this solid prism.
Answer:
[tex]2( \frac{1}{2} \times 15 \times 28 ) + ( 25 \times 30 ) + ( 17 \times 30) + ( 28 \times 30 ) \\ = 2520 {cm}^{2}[/tex]
Brainliest for the correct answers!
Answer:
didn't i answer this on your last post?
I need help with Pythagorean Theorem
Answer:look at picture
Step-by-step explanation:
Answer:
the sum of the angles pythagorean theorem is a^2+b^2=c^2
Also, the angles of a triangle will add up to 180 degrees
this practice is most commonly found in right triangles
Step-by-step explanation:
Mark is comparing prices of different brands before he goes shopping. Who has the best deal on ice cream? Brand Size & Price Turkey Hill $4.50 for 30 ounces Breyers $15.36 for 128 ounces Ben & Jerrys $2.88 for 16 ounces
Answer:
Breyers is the correct answer
Step-by-step explanation:
$4.50/30 oz = .15
$15.36/128 oz = .12
$2.88/16 oz = .18
Standard form for y=3×-2
Answer:
3x-y=2
Step-by-step explanation:
y=3x-2
(y-3x)=-2
-3x+y=-2
change the signs on both sides
3x-y=2
=3x-y=2
A calculator screen displays 3.294E6. Write this number in standard form.
Answer:
3.294
Step-by-step explanation:
The standard form of the given number is [tex]3294000[/tex].
Important information:
The calculator screen displays 3.294E6.Standard form:in a calculator, the numbers on the right side of E are the exponent of 10. So, the scientific notation of the given number is:
[tex]3.294E6=3.294\times 10^6[/tex]
It can be written as:
[tex]3.294E6=3.294\times 1000000[/tex]
[tex]3.294E6=3294000[/tex]
Therefore, the standard form of the given number is [tex]3294000[/tex].
Find out more about 'Standard form' here:
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solve for a side in right triangles
Answer:
? =8.77
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opposite side/ hypotenuse
sin 20 = 3 / ?
? = 3/ sin 20
? = 8.7714132
To the nearest hundredth
? =8.77
Find the quartiles for these data values:
5,7,7,8,10,11,12,15,17
Answer:
The median {Q2} is 10
Q1 is 7+7/2 which is 7
Q3 is 15+12/2 which is 13.5
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
its coreect
Two step equations. Please help
Y=7
Step-by-step explanation:
Move all terms not containing y to the right side of the equation.
4y=22+6
Then add 22 and 6.
4y=28
Divide each term in 4y=28 by 4
4y÷4=28÷4
Cancel the common factor of 4 in the first part of the equation so it looks like this...
y=28÷4
Divide 28 by 4.
Therefore y=7
Hope this helps! If you have any more questions or you need further clarification on anything then please comment down below! Good luck!
you get in a elevator and go down 8 floors. You exit on the 16th floor. What floor you on the elevator
Answer:
24th floor
Step-by-step explanation:
To get the number of the floor you were originally on, you add the number of floors you went down to the current floor you are on so 16 + 8 = 24
Answer:
24
Step-by-step explanation:
x-8=16
16+8=24
A standard deck of 525252 cards contains 444 suits: hearts, clubs, diamonds, and spades. Each suit consists of cards numbered 222 through 101010, a jack, a queen, a king, and an ace. Anthony decides to pick one card at random from a standard deck of 525252 cards. Let AAA be the event that he chooses an ace and HHH be the event that he chooses a heart. What is P(A\text{ or }H)P(A or H)P, left parenthesis, A, start text, space, o, r, space, end text, H, right parenthesis, the probability that the card Anthony chooses is either an ace or a heart?
The question is not properly written
Correct Question
A standard deck of 52 cards contains 4 suits: hearts, clubs, diamonds, and spades. Each suit consists of cards numbered 2 through 10, a jack, a queen, a king, and an ace.
Anthony decides to pick one card at random from a standard deck of 52 cards. Let A be the events that he chooses an ace and H be the event that he chooses a heart.
What is P ( A or H), the probability that the card Anthony chooses is either an ace or a heart?
Answer:
2/13
Step-by-step explanation:
From the question, we have in total, 52 cards.
Step 1
We find the probability that Anthony chooses an Ace.
Number of ace cards in each of four suits namely spades, hearts, diamonds and clubs = 1
Therefore, total number of ace cards out of 52 cards = 4
P(A) = 4/52
Step 2
We find the probability that Anthony chooses an Ace.
Probability that Anthony chooses an heart P(H) = 4/52
Step 3
The probability that the card Anthony chooses is either an ace or a heart
P ( A or H) = P(A) + P(H)
= 4/52 + 4/52
= 8/ 52 = 2 /13
Someone please help me this will be a lot of points and I will follow u and Mark u the brainiest
Answer:
option D; 20/3 OR 6 2/3
Step-by-step explanation:
CONVERT THE HOURS INTO MINUTES;
3/4 × 60 = 45 mins
1hour = 60 mins
45 mins = 5 miles
60 mins = ??
cross multiply;
60 by 5 ÷ 45 to get 20/3.
Find the values of x and y that satisfy the equation.
3x+6i=27+yi
x
Answer:
x = 9
y = 6
Step-by-step explanation:
3x+6i=27+yi
The real components have to be equal and the imaginary components have to be equal
3x = 27
divide by 3
3x/3 = 27/3
x=9
6i = yi
Divide by i
6 = y
Answer:
x=9, y=6
Step-by-step explanation:
Step-by-step explanation:
we have
3x+6i=27+yi
Equate the Real Numbers
3x=27
solve for x
Divide by 3 both sides
x=27/3=9
Equate the Imaginary Numbers
6i=yi
Simplify
6=y
Rewrite
y=6
therefore
x=9, y=6
Correct answers only!
To the nearest cent, how much will she have in 1 year?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
$5150
Step-by-step explanation:
p = 5000
r = 0.03
t = 1
5000 * (1.03) = 5150
Brainliest question please help please help me now plz
Answer:
13/b I think
Step-by-step explanation:
will mark brainliest!! 20 points!! i just need a short paragraph on this....look at attachment
The driver decides to check her speedometer while driving along a motorway.
She measures how long it takes her to travel 6 km. It takes her exactly 4 minutes.
What was her speed in km/h? Show your working.
Answer:
90km/h
Step-by-step explanation:
speed =distance / time
distace = 6
time = because we have hours we have to convert the minute into an hour so
4/60 so that woul be: 0.06666666666
and 0.06666666666 times 6 is 90
i hope that helps
5 + x = -2
I need work and answer!!!!
We need to get x by itself.
We do that by subtracting 5 from both sides.
This leaves us with x = -7.
So x = -7 is the solution.
Answer:
The final answer is [tex]x = -7[/tex] .
Step-by-step explanation:
Solve the equation:
[tex]5 + x = -2[/tex]
Subtract both sides by 5:
[tex]5 - 5 + x = -2 -5[/tex]
[tex]x = -7[/tex]
So, therefore, [tex]x = -7[/tex] is the final answer.
What is the x-value in the solution to the system of linear equations?
y = 1/2x + 2
y = -3/2x -2
Answer: The value of x is -2.
Step-by-step explanation:
y= 1/2x + 2
y= -3/2x-2
1/2x + 2 = -3/2x -2
+2 +2
1/2x + 4 = -3/2x
-1/2x -1/2x
4= -2x
x= -2
To the nearest year, it will take about years to double the original investment.
Answer:
11 years on Edg
Step-by-step explanation:
Answer:
11 years
Step-by-step explanation:
Write 34.996 to:
i. 2 decimal places
Answer:
34.996 to 2 dcp is 35.00
Step-by-step explanation:
6 rounds up 9 goes to 10 add the 1 left over to make the units number equal 5 but as it is decimal place remember to add the 0's
Answer:
35.00
Step-by-step explanation:
just don't leave the zeros.
Need help with equations with fraction solutions, tysm if you do :)
1-2c = -8
-8/7r = 6
4-4 (4-x) -4x = 18x
1/5m + 3 = 7/5m
Answer:
1. c = 9/2
2. r = 21/4
3. x = -2/3
4. m = 5/2
Step-by-step explanation:
1.
1 - 2c = -8
Subtract 1 from both sides to isolate the variable:
-2c = -8 - 1 = -9
Divide by -2 to further isolate the variable:
c = (-9) / (-2) = 9/2
So, the answer is c = 9/2.
2.
-8/7r = 6
To isolate the variable, divide both sides by -8/7:
r = (-6) / (-8/7)
Remember that when dividing fractions, it's the same as multiplying by the reciprocal of the divisor, so:
r = (-6) / (-8/7)
r = (-6) * (-7/8) = 42/8 = 21/4
So, the answer is r = 21/4.
3.
4 - 4 * (4 - x) - 4x = 18x
We need to use order of operations and expand the 4 * (4 - x) part first:
4 * (4 - x) = 16 - 4x
Put this back in:
4 - (16 - 4x) - 4x = 18x
4 - 16 + 4x - 4x = 18x
Combine like terms:
-12 = 18x
Divide by 18 on both sides:
x = -12/18 = -2/3
So, the answer is x = -2/3.
4.
1/5m + 3 = 7/5m
Subtract 1/5m from both sides:
3 = 7/5m - 1/5m = 6/5m
Divide both sides by 6/5:
m = 3 ÷ (6/5) = 3 * (5/6) = 15/6 = 5/2
So, the answer is m = 5/2.
Answer:
1. c = 9/2
2. r = -21/4
3. x = -2/3
4. m = 5/2
Step-by-step explanation:
1-2c = -8
1 + 8 = 2c
9 = 2c
c = 9/2
-8/7r = 6
r = 6 × 7/-8
r = 3 × 7/-4
r = -21/4
4-4 (4-x) -4x = 18x
4 - 16 + 4x - 4x = 18x
-12 = 18x
x = -12/18
x = -2/3
1/5m + 3 = 7/5m
3 = (7/5 - 1/5)m
3 = 6/5m
m = 3 × 5/6
m = 5/2
What is the value of b in the equation (y^-9)^b =y45
Answer:
b = -5
Step-by-step explanation:
[tex]\begin{array}{rcll}(y^{-9})^{b} & = & y^{45}& \\y^{-9b} & = & y^{45} & \text{Multiplied exponents}\\-9b \ln y & =& 45 \ln y & \text{Took the ln of each side}\\-9b & = & 45 & \text{Divided each side by ln y}\\b & = & \mathbf{-5} & \text{Divided each side by -9}\\\end{array}[/tex]