7. 8x - 4= 4(2x + 1) have how many solutions
Answers
Answer:
0
Step-by-step explanation:
Let's solve for x
8x-4=4(2x+1)
8x-4=8x+4
0= 8
This obviously isn't true and therefore there are 0 solution
Answer:
No solution as both side not equal.
Related Questions
A pair of designer sneakers was purchased for $150. Since they were purchased, their price has increased by 15%. What is the new price?
Answers
Answer:
$172.50
Step-by-step explanation:
150 increase 15% =
150 × (1 + 15%) = 150 × (1 + 0.15) = 172.5
Answer:
$172.50
Step-by-step explanation:
You have to multiply 150 by 1.15 because that is 150 plus 15% of itself.
Leah is creating satin bows for a wedding. From a 15-meter-long ribbon, she first cuts a piece meters long. Then she cuts a piece meters long from the remaining ribbon. How much ribbon does Leah have left?
Answers
Complete question :
Leah is creating satin bows for a wedding. From a 15-meter-long ribbon, she first cuts a piece 3 4/9 meters long. Then she cuts a piece 6 5/9 meters long from the remaining ribbon. How much ribbon does Leah have left?
Answer:
5 m
Step-by-step explanation:
Total ribbon cut :
3 4/9 + 6 5/9 =
31/9 + 59/9
= 90 /9
= 10 meters
Total Length of ribbon = 15 m
Ribbon left :
15 - 10 = 5 m
b) Simplify yxyx y
How do I do it
Answers
Answer:
x²y³
Step-by-step explanation:
You can multiply the like terms together and then put these next to eachother to show they are multiplied?
Answer:
y^3
Step-by-step explanation:
Simplify 2x + 1 -x + 2.
Answers
Answer:
x+3
Step-by-step explanation:
Hope you have a good day, Loves!
Also if I'm right can you let me know please?
Also Also if I am right can I please have Brainliest??
(How in the hecc are three people answering this?)
How do you find powers of i?
Answers
Brian has saved five dollars in dimes quarters and half dollars she finds that she has 30 coins all together and there are four times as many quarters as there are half dollars how many dimes does Brian have
Answers
9514 1404 393
Answer:
20 dimes8 quarters2 half-dollarsStep-by-step explanation:
Let d, q, h represent the numbers of dimes, quarters, and halves Brian has. We can write 3 equations in these 3 variables:
10d +25q +50h = 500 . . . . value of the coins, in cents
d + q + h = 30 . . . . . . . . . . . total number of coins
4h = q . . . . . . . . . . . . . . . . . four times as many quarters as halves
Using the last equation to substitute into the other two, we get ...
10d + 150h = 500
d +5h = 30
The second equation can be written as ...
5h = 30 -d
and the first can be written to facilitate substitution:
10d +30(5h) = 500
10d +30(30-d) = 500 . . . . . substitute for 5h
900 -20d = 500 . . . . . . . . . simplify
400 = 20d . . . . . . . . . . . . . add 20d-500 to both sides
d = 20 . . . . . . . . . . . . . . . . divide by 20
Brian has 20 dimes.
What is the nth term in this sequence... 1,4,7,10...
A)3n+3
B)3n+1
C)3n-2
D)n+3
Answers
sorry if it’s wrong <3
True or False: The points (6,13) (21, 33) and (99, 137) all lie on the same line. The equation of the line is y = 4/3x + 5. PLS HELP ASAP
Answers
Answer:
This is true look at picture for clarification
Answer:
True
Step-by-step explanation:
To see if the points all lie on the line y = 4/3x + 5, substitute their x and y values into the equation, solve, and see if the equation is true.
1) First, substitute the x and y values of (6,13) for the x and y in the equation and solve:
[tex]13 = \frac{4}{3} (6) + 5 \\13 = \frac{24}{3} +\frac{15}{3} \\13 = \frac{39}{3}\\13 = 13[/tex]
The result is a true equation. Thus, (6,13) is on the line.
2) Do the same with the point (21,33):
[tex]33 = \frac{4}{3} (21) + 5 \\33 = \frac{84}{3} +\frac{15}{3} \\33 = \frac{99}{3} \\33 = 33[/tex]
The result is a true equation. Thus, (21,33) is on the line.
3) Finally, do the same with (99, 137):
[tex]137 = \frac{4}{3} (99) + 5\\137 = \frac{396}{3}+\frac{15}{3} \\137 = \frac{411}{3} \\137 = 137[/tex]
The result is a true equation. Thus, (99, 137).
All three points are on the line, thus the statement is true.
Can someone help me solve this matrix
Answers
Answer:
You cant add a negative number.
Step-by-step explanation:
If you add a negative number you will not have a full answer.
Jason unfolded a cardboard box. The figure of the unfolded box is shown below: A long rectangle divided along the length into 4 equal squares is shown. Along the upper edge length of the second square is shown another square, and along the lower edge length of the fourth square is shown another square. The first square from the left has two adjacent sides labeled as 10 inches each. Which calculation will give the total surface area of the cardboard, in square inches, that was used to make the box? (1 point) a 5 × 6 × 6 b 6 × 5 × 5 c 10 × 6 × 6 d 6 × 10 × 10
Answers
Answer:
The answer is the third one
Step-by-step explanation:
Hope I helped
Melissa has her own catering service. So far this year her company has generated income of $45,750. If she charges an average of $350 for each catering job, which linear equation could be used to find the company's total (t) income after completeing jobs?
Answers
Answer:
t = 350x + 45,750
Step-by-step explanation:
The linear equation that would represent this scenario perfectly would be the following
t = 350x + 45,750
In this equation, the variable x represents the total number of catering jobs that Melissa and her company are completing. This variable gets multiplied by the cost that she charges for each individual job. Finally, the total amount of money that she has already made so far this year is added to that product to give us the total income that she would make for the year after completing the jobs.
What is the answer to this question
Answers
Answer:
C
Step-by-step explanation:
Quite simple. If x=4, the x+8, or 4+8= 12. 3x or 3*4 also happens to equal 12. Yw.
Answer:
c
Step-by-step explanation:
x + 8= 3x
if the answer is 4 then it would be 4 + 8 = 12 which makes sense. if you have a problem like this just put in what your trying to find and when the problem makes sense that's the solution.
2. A plastic smartphone case is roughly rectangular and measures 6 in. by 3 in. The back side of
the case has two sections cut out: a l in. by 0.5 in. rectangle for the camera and a triangle that
is 1.5 in. wide and 1.5 in. tall so that the brand logo on the phone is visible when it is in the
case. What is the approximate area of the plastic on the phone?
15.25 in.2
0 16.375 in.2
019.625 in 2
20.75 in 2
Answers
Answer:
ITs 16.375 in.2
Step-by-step explanation:
If your in connections and you have Lesson 4: Area of Other Figures
Math 7 B Unit 3: Measurement the whole quick check answers are
1. D. 40.5cm2
2. B. 16.375 in.2
3. B 540cm2
4. C 460
Your welcome also I swear these are right!
what is the sum of angles in a triangle
Answers
Answer:
The sum of the three angles of any triangle is equal to 180 degrees.
Step-by-step explanation:
Answer: The sum of angles in a triangle is 180 degrees
Carson is selling lemonade. The number of cups of lemonade he sells
determines how much money he earns. Which is the dependent variable?
O the number of cups of lemonade Carson sells
the amount of money Carson earns
None of the above
Answers
Answer:
none
Step-by-step explanation:
i dont know
Tommy went to the mall and bought a shirt for $10 and a pair of pants for $30. Their was a sales tax of 7% on his purchase. How much did he pay in total?
Answers
Answer:
42.8
Step-by-step explanation:
(10+30)*1.07=42.8
Oliver buys a computer that is on sale for 20% off the original price. The original price is $54 more than the sale price. What is the original price of the computer?
Answers
Answer:
270
Step-by-step explanation:
20%-> 54
100%-> 270
Josiah invested $7,800 in an account paying an interest rate of 8 7/8% compounded
continuously. Faith invested $7,800 in an account paying an interest rate of 8 3/4%
compounded quarterly. After 9 years, how much more money would Josiah have in
his account than Faith, to the nearest dollar?
Answers
Answer:
$339
Step-by-step explanation:
Answer:
$339
Step-by-step explanation:
The scale on a map of Oregon is 1 inch = 5000 feet What is the scale factor?
Answers
Answer:
C
Step-by-step explanation:
Answer:
Step-by-step explanation: It would be A because the factor is the denominator and it would be more units in size, so there are 60,000 inches in 5,000 feet.
Marcus bought a booklet of tickets to use at the amusement park. He used 50% of the tickets on rides, 1/10 of the tickets on video games, and the rest of the tickets in the batting cage. Marcus says he used 38% of the tickets in the batting cage. Do you agree? Complete the explanation.
Answers
Answer:
no
If he used 50% on ticket for rides, the remaining tickets he would have is (100% - 50%) 50%.
He used 1/10 on video games. Converting 1/10 to percentage gives 10%.
The total percentage of tickets used is 60%. He should have 40% to spend on batting cages
Step-by-step explanation:
someone plz help me plz
Answers
Answer:
38.5
Step-by-step explanation:
First do 77/2 then you get 38.5, if anything is wrong please tell me!!
Tracy walked for 3 1/2 miles . How many feet did she walk ?
Answers
Answer:
18,480 feet
Step-by-step explanation:
Answer
18480
Step-by-step explanation
im smart
Add (y + 2x + 5) + (3y - 3x +1)
Answers
Answer:
4y-x+6
Step-by-step explanation:
Answer:
3y-x+6is answer.good luck
Step-by-step explanation:
(y + 2x + 5) + (3y - 3x +1)
y + 2x + 5+3y - 3x +1
y+2y+2x-3x+5+1
3y-x+6
Find the area of this composite figure.
Answers
Answer: 242 in²
All the work is shown in the picture.
find the circumference of a circle radius = 17.5m give your answer in terms of pi
Answers
Answer:
Circumference=diameter x pie
=(17.5×2)×pi
=35pi
Answer:
35π cm
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = 2πr ( r is the radius ) , then
C = 2π × 17.5 = 35π cm
Given: If a child is at least 4 feet tall, then
he or she can ride the roller coaster. If a
child can reach the red bar, then the child
is at least 4 feet tall.
Which conjecture is valid by the Law of
Syllogism?
F if a child can reach the red bar, then
the child can ride the roller coaster,
G If a child is at least 4 feet tall, then
the child can reach the red bar.
H If a child can ride the roller coaster,
then the child is at least 4 feet tall.
J If a child can ride the roller coaster,
then the child can reach the red bar.
O
Answers
Answer:
F
Step-by-step explanation:
What is the percent of change from 500,000 to 800,000?
Answers
The values will vary by a percentage of 60%.
What is percentage change?
Finding the difference between two values in a time series, dividing that difference by the initial value, and multiplying by 100 are used to determine the percentage change between the two values.
Given two values 500,000 and 800,000
From the general formula of percentage change
percentage change = (final value - initial value)/ initial value * 100
Percentage change = (800,000 - 500,000)/500,000* 100
Percentage change = 60
Therefore, the percentage change of the given values will be 60%.
Learn more about percentage change here:
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PLEASE HELP ME WRITE A EQUATION FOR THIS! I WOULD REALLY APPRECIATE IT!
Answers
Answer:
y= -x-1
Step-by-step explanation:
x + y = -3 & 5x - 2y = -50 ELIMINATION
Answers
7/12
Which expression is equivalent to this fraction?
Answers
Answer:
12/7
Step-by-step explanation:
yes ! cd