Answer:
x=2.7
Step-by-step explanation:
21x=57
21x/21=57/21
x=2.7
Answer:15
Step-by-step explanation:
the system ax-by=-16 and ax+2y=20 has one solution at the point (3,4). Find a and b. (a=4,b=7)
Answer:
Step-by-step explanation:
substitute (3,4) to equation: ax+2y=20
3a+8=20
a=4
Then, 4x-by=-16
substitute (3,4) to solve b,
4*3-b(4)=-16
b=7
.
8.) A can of tennis balls is $4.00 and is 15% off. The sales tax is 6%.
Help pls
Based on the sample standard deviation value, the
temperature each day during this time period varied by
about ✓ from the
of 38.11°F. If the
next recorded temperature is 56°F, the standard
deviation would
Answer:
3.66, mean, and increase
Step-by-step explanation
Answer:
3.66, mean, and increase
Step-by-step explanation:
Use the original price and the markdown to find the retail price.
Original price: $30; Markdown: 36%
The retail price is $_____
Please include work.
Answer:
83
Step-by-step explanation: you divide 30 and 36% and you will get 83 hope this helped
5. Find the value x. (3pts.)
6x - 18
3x + 18
someone help
Answer:
x=12
Step-by-step explanation:
6x - 18 = 3x + 18
6x = 3x + 36
3x = 36
x=12
Answer:
its 12
Step-by-step explanation:
find solution and show work for (3.4^17)^4
Work Shown:
(3.4^17)^4
3.4^(17*4)
3.4^68
The general rule is (a^b)^c = a^(b*c)
Find the x and y intercept of y=-3x+4
Answer:
I've attached the answer below.
Step-by-step explanation:
did it tell you what x and y equal
WILL MARK BRAINLYLIST PLZZ HELP!!
Answer:
x = 49
Step-by-step explanation:
180-131=49
they are supplementary angles
Answer:
49
Step-by-step explanation:
what is the y-intercept?
Answer:
the y intercept is -2
Step-by-step explanation:
If you look at the pattern of the y values, it's just adding one every time. so when x=o y=-2
5. In which group are the spheres of the Earth listed in order of increasing density?
Answer:
whats density
Step-by-step explanation:
Oceanside bike rental shop charges 16 dollars plus 9 dollars an hour for renting a bike.Sam paid 52 dollars to rent a bike.How many hours did he pay to have the bike checked out?
Answer:
4 Hours
Step-by-step explanation:
Since the equation is:
y = 9x + 16
You have to find x
This is the logical way:
52-16 = 36 because thats the starting fee
So 36 divided by 9 equals 4
You do that because 9 is the charge per hr
So he rented it for 4 hours.
Hope this helps:)
which equation has a solution of x = 4
Answer:
There are no equations or no pictures
es 1024 divisible por 32
Answer:
Yes
Step-by-step explanation:
answer is 32
Two points are _______________________ collinear
a
Always
b
Sometimes
c
Never
Answer:
a
Step-by-step explanation:
Two points are always collinear since we can draw a distinct (one) line through them.
Answer:
always
Step-by-step explanation:
Need help ASAP please!!! The formula determines the magnitude of an earthquake, where I is the intensity of the earthquake and S is the intensity of a “standard earthquake.” How many times stronger is an earthquake with a magnitude of 8 than an earthquake with a magnitude of 6? Show your work.
Answer:
100
Step-by-step explanation:
M = log(I/S)
The intensity of the first earthquake:
8 = log(I₁/S)
10⁸ = I₁/S
I₁ = 10⁸ S
The intensity of the second earthquake:
6 = log(I₂/S)
10⁶ = I₂/S
I₂ = 10⁶ S
The ratio is:
I₁/I₂ = (10⁸ S) / (10⁶ S)
I₁/I₂ = 100
It is 100 times stronger.
An earthquake with a magnitude of 8 is 100 times stronger than an earthquake with a magnitude of 6.
Given the following data:
Magnitude A = 8Magnitude B = 6To determine how many times stronger is an earthquake with a magnitude of 8 than an earthquake with a magnitude of 6:
Mathematically, the magnitude of an earthquake is given by the formula:
[tex]Magnitude = Log(\frac{I}{S} )[/tex]
Where:
I is the intensity of the earthquake.S is the intensity of a standard earthquake.For earthquake A:
[tex]8=Log (\frac{I_A}{S} )\\\\10^8=\frac{I_A}{S}\\\\I_A=S10^8[/tex]
For earthquake B:
[tex]6=Log (\frac{I_B}{S} )\\\\10^6=\frac{I_B}{S}\\\\I_B=S10^6[/tex]
For strength:
[tex]Strength = \frac{I_A}{I_B} \\\\Strength = \frac{S10^8}{S10^6} \\\\Strength = 10^2[/tex]
Strength = 100
Read more: https://brainly.com/question/21620194
From January to June, there are more daylight hours as June approaches.
What is the dependent variable?
Answer:
The daylight depends on the month so daylight is the dependent and the months are independet
Step-by-step explanation:
a
b
75°
115°
e
75°
Which lines are parallel? Justify your answer.
Lines a and b are parallel because their alternate
exterior angles are congruent.
Lines a and b are parallel because their same side
exterior angles are supplementary.
O Lines e and fare parallel because their alternate
exterior angles are congruent.
O Lines e and fare parallel because their same side
exterior angles are congruent.
Answer:
C
Step-by-step explanation:
The lines that are parallel in the image given are: Lines e and f are parallel because their alternate exterior angles are congruent.
What are Alternate Exterior Angles?When a transversal intersects two parallel lines, the alternate exterior angles that are formed are congruent to each other.
Conversely, if the alternate exterior angles formed are congruent, then both lines that are cut by a transversal are parallel.
Therefore, the lines that are parallel in the image given are: Lines e and f are parallel because their alternate exterior angles are congruent.
Learn more about alternate exterior angles on:
https://brainly.com/question/26111088
the product of x and three is negative -27. what is x
Answer:
-30
Step-by-step explanation:
it just is
The graph represents a person’s heart rate in beats per minute during 30 minutes of exercise.
A graph titled Cardiac Exercise. The horizontal axis shows time (minutes), numbered 3 to 30, and the vertical axis shows Heart Rate (b p m) numbered 15 to 150. The line starts at 75 b p m in 0 minutes, to 135 b p m from 6 to 25 minutes, and ends at 105 b p m at 30 minutes.
Which statement best describes the relationship between heart rate and time during exercise?
The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes.
The heart rate decreases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes.
The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.
The heart rate remains constant for 6 minutes, increases for 19 minutes, and then gradually decreases for 5 minutes.
Answer:
The Answer is C: The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes. :)
Answer:
C. The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.
Step-by-step explanation:
This is the correct answer on Edge 2021, just took the quiz. Hope this helps ^-^.
Simple, plz help! Need Plato answer
Answer:
11
Step-by-step explanation:
11x11
4 2/8 As A Improper Fraction
The answer is 17/4 feel free to mark as brainliest:)
solve equation for x -16= 3x + 11
Answer:
13.5
Step-by-step explanation:
Step 1:
x - 16 = 3x + 11 Equation
Step 2:
- 16 = 2x + 11 Subtract x on both sides
Step 3:
- 27 = 2x Subtract 11 on both sides
Step 4:
x = - 27 ÷ 2
Answer:
x = 13.5
Hope This Helps :)
Answer:
[tex]x = -\frac{27}{2}[/tex]
Step-by-step explanation:
Combine like terms: x - 3x = 16 + 11Simplify: -2x = 27Divide each side by -2 to cancel out the -2 next to x. It should now look like this: x = -27/2I hope this helps!
Point H is between G and I. If HG = 8x + 7, HI = 3x - 2, and GI = 38, what would be the length of GH ?
Answer:
let's see what to do...
Step-by-step explanation:
H is between G and I.
G I = G H + H I
38 = 8 x + 7 + 3x - 2
38 = 11 x + 5
subtract the sides of equation minus 5
38 - 5 = 11 x + 5 - 5
33 = 11 x
divided the sides of equation by 11
33 ÷ 11 = 11 x ÷ 11
3 = x
So the lenght of (G H) is :
8 x + 7 -----¢ 8 (3) + 7 = 24 + 7 = 31
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Twelve years ago, Jaden was 13. How old is Jaden now? Write an equation.
Answer:
x-12=13
X=12+13
=25
Jaden is 25 yrs old
Answer:
x + 13 = 25
Step-by-step explanation:
Since Jaden was 13 12 years ago, you should know to make the equation x + 13 = 25. How I got 25? Well 13 plus 12 is 25.
Which square root would end as a rational number?
Answer:
it is all of them because
Step-by-step explanation:
the first on is 8.94..
2,15.81
3,2.44
4,13
they all are rational number
Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original
height every hour.
Answer:
1.25 hours or 1 hour and 15 minutesStep-by-step explanation:
Question
Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original height every hour. Please complete the following sentence by writing the number in the blank. Until the candle has been burning for at least _______ hours, the height of Jennifer's candle will be more than 7 inches.Candle looses 10% of 8 inches, it equals:
8*0.1 = 0.8 inches an hourLet x be required time, then:
8 - 0.8x > 70.8x < 8 - 70.8x < 1x < 1/0.8x < 1.25or 1 hour 15 minutesArun has apples and oranges in the ratio 5:3. Convert the ratio of apples and oranges to the total fruits in fraction form and percentage respectively.
Answer:
Apples: 5/8 or 62.5%
Oranges: 3/8 or 37.5%
Step-by-step explanation:
You would figure this out because Aran has 5 apples and 3 oranges and if you’re trying to find the percentage to total number of fruits you have, it would be 5 apples/ 8 fruits and 3 oranges/ 8 fruits.
Hope this helped :)
Express in the form
1
:
n
8
:
24
Answer:
1:3
Step-by-step explanation:
Answer:
1:3 is the correct answer
If <3=70°, then find the rest of the angles.
1.) m<1=
2.) m<2=
3.) m<4=
4.) m<5=
5.) m<6=
6.) m<7=
Marco needs to buy some dog food at the nearest store five bags of dog food cost $27 and 50 Cent how much would Marco spin on three bags of dog food
Answer:
16.5
Step-by-step explanation:
27.50/5 =5.5x3=16.5