Answer:
No, it does not.
Step-by-step explanation:
As if we attempted to solve for x, 5x & 5x will both cross each other out. There are no values of x that make the equation true.
A CD usually sells for $15.00. If the CD is 10% off, and sales tax is 6%, what is the total price of the CD, including tax?
Answer:
the total price of the CD, including tax is $14.31
Step-by-step explanation:
The computation of the total price of the CD including tax is shown below:
= Sale price - off percentage + sales tax
= $15 - ($15 × 10%) + 6% of the remaining value
= 15 - $1.5 + 6% of the remaining value
= $13.50 + 6% of $13.50
= $13.50 + $0.81
= $14.31
Hence, the total price of the CD, including tax is $14.31
A stick 1 meter long casts a shadow 0.5 meters long. A building casts a shadow 16 meters long. How tall is the building?
Answer:
I think 8
Step-by-step explanation:
i think 8 because if you have 1 meter with .5 a meter shadow then i would think 16 meters would cast half of itself which would be 8
sorry if im totally wrong
Ms. Sims made 32 braids in 40 minutes. At this rate, how many braids would she make in 60 minutes?
Answer: 48 in 1 hour
Step-by-step explanation:
32 divided by 40 = 0.8
0.8 times 60 = 48
hope this helped you out :))
Which of the following is a true statement?
A. All squares are rectangles.
B. All rectangles are squares.
C. All rhombuses are squares.
A weather station on top of a mountain reports that the temperature is currently 0 degrees Celsius and has been falling at a constant rate of 4 degrees Celsius per hour. What will the temperature be in 5 hours?
Answer:
-20 degrees celsius
Step-by-step explanation:
The temperature is falling so the rate is -4 degrees per hour.
It is five hours so: 5 x -4 = -20 degrees celsius.
An expression is shown below. Which expression is equivalent to the expression shown?
- 2x(x + y - 3) + 3(-x + 4y) + y(3x + 5y - 3)
- 2x2(5y2 + xy + 3x + 9y
- 2x2 + 5y2 + xy - 6x +9y
- 5x2 + 5y2 + xy + 3x + 9y
- 5x2 + 5y2 + xy - 6x + 9y
Note: In option A, it should be "+" instead of "(".
Given:
The expression is
[tex]-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)[/tex]
To find:
The equivalent expression.
Solution:
We have,
[tex]-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)[/tex]
Using distributive property, we get
[tex]=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)[/tex]
[tex]=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y[/tex]
On combining like terms, we get
[tex]=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)[/tex]
[tex]=-2x^2+5y^2+xy+3x+9y[/tex]
The expression [tex]-2x^2+5y^2+xy+3x+9y[/tex] is equivalent to the given expression.
Therefore, the correct option is A.
Juan was given a gift card for a coffee shop. Each morning, Juan uses the card to buy one cup of coffee. Each cup of coffee costs $2 and the original amount of money on the gift card was $30. Write an equation for A, A, in terms of x,x, representing the amount of money remaining on the card after buying xx cups of coffee.
Answer:
30 - 2xx = x
Step-by-step explanation:
Answer:
A= 30 - 2x
Step-by-step explanation:
x/5 + 2 = 19 x______
Answer:
47x=5
or 5/47
Step-by-step explanation:
Answer:
x=85
Step-by-step explanation:
x/5 + 2 = 19
5(x/5 + 2) = 5(19) *multiply both sides of the equation by 5 to get rid of the fraction
x + 10 = 95
x = 85 *subtract 10 on both sides
Check:
x/5 + 2 = 19
85/5 + 2 = 19
17 + 2 = 19
19 = 19
The cost of a taxi journey is
£4 plus £3 per mile.
What is the cost of a journey of 7 miles?
A £7
B £21
C £25
D £31
Answer:
its C
Step-by-step explanation:
it's because 3x7 is 21 add 4 to that its 25 and that's your answer
What is 1 and 2/3 in decimal form
Answer:
1.66666667
Step-by-step explanation:
plz mark brainlest
Answer:
1.67
Step-by-step explanation:
Step 1: Multiply the whole number by the denominator:
1 × 3 = 3
Step 2: Add the product you got in Step 1 to the numerator:
3 + 2 = 5
Step 3: Divide the sum from Step 2 by the denominator:
5 ÷ 3 = 1.666667
what is x if :-1/3x-9=2
Answer:
x = -33
Step-by-step explanation:
-1/3 x - 9 = 2 add nine to both sides
-1/3 x = 11 multiply both sides by -3
x = -33
Hope that helps
3.
Use the Pythagorean Theorem or knowledge on special right triangles to
find the missing variable in the following triangles.
Part A:
Part B:
45°
9
30v2
45°
30V2
b
Answer:
Part A: [tex]l = 60[/tex], Part B: [tex]b = \frac{9\sqrt{2}}{2}[/tex]
Step-by-step explanation:
The Pythagorean Theorem determines the length of the hypotenuse of right triangle ([tex]r[/tex]) by means of following formula:
[tex]r^{2} = x^{2}+y^{2}[/tex] (1)
Where [tex]x[/tex], [tex]y[/tex] are respective lengths of each leg.
Now we proceed to solve on each triangle:
Part A: ([tex]r = l[/tex], [tex]x = y = 30\sqrt{2}[/tex])
[tex]l^{2} = (30\sqrt{2})^{2}+(30\sqrt{2})^{2}[/tex]
[tex]l^{2} = 3600[/tex]
[tex]l = 60[/tex]
Part B: ([tex]r = 9[/tex], [tex]x = b[/tex], [tex]y = \frac{9\sqrt{2}}{2}[/tex])
[tex]9^{2} = b^{2}+\left(\frac{9\sqrt{2}}{2} \right)^{2}[/tex]
[tex]81 = b^{2}+\frac{81}{2}[/tex]
[tex]b^{2} = \frac{81}{2}[/tex]
[tex]b = \frac{9\sqrt{2}}{2}[/tex]
please explain i really don’t understand
Answer:
22.5°
Step-by-step explanation:
First we need to figure out the size of the interior angles on the inside.
The formula of figuring out the total degrees of all the interior angles of any shape is (n-2)×180°.
N is the number of sides.
If we substitute our number of sides (8) we get this:
(8-2)×180°
6×180° = 1080°
Then we divide 1080 by 8 since this is a regular octagon (all angles are equal in a regular shape).
1080° ÷ 8 = 135°
Focusing on the triangle now, we now know that the angle on the tip of the triangle is 135° as it has not been split by the line.
Using the rule of angles in a triangle add up to 180°. We do this sum:
180° - 135° = 45°
There are 2 angles left in the triangle so we do:
45° ÷ 2 = 22.5°
Therefore the angle of x is 22.5°.
the monthly revenue for printer ink for a large office supply store is r(x) =-x^2 +12x+13, where x is the price of an ink cartridge in dollars and r(x) is in hundreds of dollars. what is the maximum monthly ink revenue
Answer:
6u77vhy46yvt g vgj v6. hy
Step-by-step explanation:
guv yg
HELP ME PLeaseee!!!!
Answer:
x= 8.5, 2x=17, (9x+5)=81.5
Step-by-step explanation:
since the sum of the interior angles of a triangle is 180 degrees, you must add all of the angles and set them equal 180:
[tex]2x + 2(9x+5) = 180[/tex]
next distribute the 2 to 9x + 5.
[tex]2x + 18x + 10 = 180[/tex]
next combine like terms (2x and 18x) and subtract 10 from 180.
[tex]20x = 170[/tex]
finally, divide 170 by twenty.
[tex]\frac{20x = 170}{20}\\,x=8.5[/tex]
the final answer is x=8.5
once x is determined, you can solve 2x and 9x+5.
[tex]2(8.5)=17\\\\9(8.5) +5 =81.5[/tex]
PLEASE HELP ME I WILL GIVE YOU BRAINLIEST IF YOU HELP ME PLEASE I REALLY NEED HELP
Answer:
60º
Step-by-step explanation:
they key word here is difference meaning we need to subtract
specifically, we need to subtract 75 from 135 to find the difference in degrees, hence the number of degrees between the two settings:
135º - 75º = 60º
55% of students spent their trackouts on Netflix. What fraction of students
watched Netflix?
Answer:
11/20
Step-by-step explanation:
11/20
Answer:
55/100
Step-by-step explanation:
Beacsue % only equal %/100
I aint gonna lie this is easy points hehehehe
Solve the system of equations by graphing. Check your solution. y=-3x+7 3x+y=4
Answer:
Step-by-step explanation:
Answer:
there are no solutions
Step-by-step explanation:
In y=-3x+7, -3 is the slope, and 7 is the y-intercept. In 3x+y=4, this equation also equals -3x+4=y. So, -3 is the slope, and 4 is the y-intercept. Once you graph the equations(as seen in the picture below) you should find where the lines intersect. Although, the lines are parallel since the slopes are the same.
- Josh and Gerald are having a throwing contest. Josh's first throw landed 20 feet away from the throwing line. They also measured that the
highest point of the throw occurred when the ball was 10 feet away from Josh and 30 feet in the air. Which equation models the path of Josh's
throw?
Answer:
y = -3x^2/10 + 6x
Step-by-step explanation:
I REALLY NEED HELP WITH THIS QUESTION
Answer:
$1.75
Step-by-step explanation:
4b+n=12;2b+3n=18.5
Step: Solve4b+n=12for n:
4b+n+−4b=12+−4b(Add -4b to both sides)
n=−4b+12
Step: Substitute−4b+12fornin2b+3n=18.5:
2b+3n=18.5
2b+3(−4b+12)=18.5
−10b+36=18.5(Simplify both sides of the equation)
−10b+36+−36=18.5+−36(Add -36 to both sides)
−10b=−17.5
(Divide both sides by -10)
b=1.75
Step: Substitute1.75forbinn=−4b+12:
n=−4b+12
n=(−4)(1.75)+12
n=5(Simplify both sides of the equation)
Answer:
b=1.75 and n=5
PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!
PLSSSS SHOWWW THE WORKKK!!!!
Answer:
no hablo inglés xd no te puedo ayudar
Answer:
y^4/x^2
Step-by-step explanation:
i wish i could show the work but tbh i just use the link i comment under
Its helpful
giving out brainliest!!
Answer:
A.
Step-by-step explanation:
The PTA is sponsoring an 8th grade
dance and has asked your help to
select a D.J. for the big event. You
called around and found that Dylan
the D.J. charges a $100 set-up fee plus
$17.50 per hour. Mya's MC Mobile hos a
$125.00 set-up fee, plus $10 per hour.
Which D.J. would you recommend to
the PTA? Be sure to clearly support
your recommendation mothemotically
The measure of the second angle is 15 degrees more then the measure of the 1st angle. The measure of the 3rd angle is 45 degrees more than the measure of the 1st angle. Find the measures of the interior angles in the triangle.
Let the first angle be x
So, second angle = (x+15)°
and third angle= (x+ 45)°
Now,
x+ (x+15) + (x+45)= 180°. ( Triangle sum property)
x+x+x+15°+45° = 180°
3x+ 60° = 180°
3x= 180°-60°
3x= 120°
x= 120°/3
x= 40°
Now,
first angle=x= 40°
second angle = (x+15)°= 40°+15° = 55°
third angle= (x+45)° = 40°+45° = 85°
Hope it helps you. Please mark as brainliest if it does.
For every pound a company spends on advertising, it spends £0.26 on its website. Express the amount spent on advertising to the amount spent on its website as a ratio in its simplest form.
Answer:
Can you convert pounds to dollars?
Step-by-step explanation:
help me plzzzzzzzzzzzzzzzzzz
An investment of £200 increases by 4% each year for 3 years
Calculate the value of the investment at the end of the period.
(Will give brainliest and 10 points)
Answer:
£224
Step-by-step explanation:
Given data
P= £200
R=4%
T=3 years
Simple interest
A= P(1+rt)
Substiute
A= 200(1+0.04*3)
A=200(1+0.12)
A=200*1.12
A=£224
Hence the investment at the end of the period is £224
Hi I need help with this one!!!!
Answer:
Daniel can afford 12 rides
Step-by-step explanation:
So we would take his 22 dollars and subtract 4 for admission leaving us at 18\
Then we would divide 18 by 1.50 and we would get 12
EXPERTS PLEASE HELP!!!!!!!!!!!!!!
Answer:
1. D
2. x=65
Step-by-step explanation:
Hi!
Your answer is D because 78 is 120% of x
120% in decimal point is 1.2.
So it's 1.2x is the same as 120% of x
For question 8:
1.2x=78
Isolate x by divide 1.2 on both sides
78/1.2=65