Answer:
10%
Step-by-step explanation:
First, 97.90-89=8.90
8.90/89 = x/100
8.90 x 100 = 890
890/89=10%
Check Answer:
89 x 10%=8.90
89+8.90= 97.90
Therefore, the sales tax percentage is 10%
Put the following equation of a line into slope-intercept form, simplifying all fractions. 15x - 3y = 15
If the value of a is between 0 and 1 in f(x) = ax?, how does the graph compare to f(x) = x?
above f(x) = x^2
narrower than f(x) = x^2
wider than f(x) = x^2
below f(x) = x^2
Answer:
As we can see from the graphs, when 0 < |a| < 1 (|a| means absolute value of a), the parabola appears wider. When |a| > 1, the parabola appears thinner. When a is positive, the parabola opens upwards; when a is negative, the parabola opens downward.
it’s gonna be wider i took the test
She concluded that each serving weighs One-sixth of a kilogram. What is Neuma’s error?
Answer:
the answers d dhdiodg sjsi
Statement True False There are whole numbers that are not integers.
True!
your very welcome
Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 2%. If the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (Round your answer to one decimal place.
The amount of radioactive material remaining after 24 hours is 92.15 kg.
Exponential functionAn exponential function is in the form:
y = abˣ
where y, x are variables, a is the initial value of y and b is the multiplier.
Let y represent the amount of the substance after t hours.
From the equation, a = 100 mg
Also, after 6 hours:
[tex]100-100*2\%=100b^6\\\\98=100b^6\\\\b=0.9966[/tex]
After 24 hours:
y = 100(0.9966)²⁴ = 92.15 kg
The amount of radioactive material remaining after 24 hours is 92.15 kg.
Find out more on Exponential function at: https://brainly.com/question/12940982
Why is it helpful to represent fractions and division with models?
Answer:
R fraction visual models are incredibly effective for teaching fraction concepts. Conceptual understanding means knowing the meaning of a numerators and a denominators. As well as understanding what actually happens when we perform fraction operations.
Step-by-step explanation:
Answer:
Its because some people get mixed up when doing fractions multiplications or anything, and models help, like me for example, I got mixed up on fractions and models helped me.
Step-by-step explanation
I hope this helps sorry if im wrong ;)
an object that weighs 1 pound on earth weighs 1.19 pounds on neptune suppose a dog weighs 9 pounds on earth how much would the same dog weigh on neptune?
Tina has 5 yards of fabric. She is making scarves that each require 1/3 of a yard of fabric. How many scarves can she make?
Answer:
15 scarves
Step-by-step explanation:
CROSS MULTIPLICATION METHOD
5 YARDS = x
⅓ YARDS = 1 scarves
⅓x = 5
x = 5×3
x = 15
If any vertical line intersects a graph more than once, the graph does not define y as a function
True
Or False
Let x represent the number of television show episodes that are taped in a season. Enter an expression for the number of episodes taped in 8 seasons.
Please help this is due soon!!!
Answer:
x=8 ???
Step-by-step explanation:
??? not 100% sure but im pretty sure ;w;
Answer:
=> 8x
Step-by-step explanation:
=> Take X as the number of episodes taped in 8 seasons.
=> So, it's 8x
Can you help me please with 2-5 of 60
Answer:
2/5 of 60 means (2/5) x 60. According to BODMAS rule, of is used for multiplication. Now we can simply write it as {(2×60/5}
Step-by-step explanation:
Since 2 × 60=120, therefore the equation becomes (120 ÷ 5) 24
Hence, 24 is the answer
Hope this was helpful! :)
Happiness
(-3,5) and (3,-9)
slope: -4
what is the point slope form ?
what is the slope intercept form ?
Answer:
= -3+5+3-9
= -12+8
= -4
Step-by-step explanation:
All the numbers with their sign are written in first step.
Then, the numbers having same sign are added in second step.
After that their calculation is done and the answer is -4.
Am I right...?
SOMEONE HELP PLEASEE I WILL GIVE U BRAINLIEST IF U ANSWER CORRECT
Answer:
Im pretty sure its C
Step-by-step explanation:
desmos
2,369÷ 6 = t t is about
Answer:
[tex]394\frac{5}{6}[/tex] or 395 rounded.
Step-by-step explanation:
Divide 2,369 by 6 to find t.
Divide 2,369 by 6:
[tex]\frac{2369}{6} =394\frac{5}{6} \\[/tex]
T = [tex]394\frac{5}{6}[/tex]
T as a rounded answer Is 395.
(Rounded to the Ones place)
The pitch of a musical note varies inversely as its wavelength. If a tone has a pitch of 440 vibrations per second and a wavelength of 2.4 feet, find the pitch of a tone that has a wavelength of 1.6 feet.
Answer:
660 vibrations
Step-by-step explanation:
sorry if im wrong and have a wonderful day!!!
:)
8 to 14 for ratio as a fraction in simplest form.
Answer:
if that is the ratio the fraction would be 8/14 but if we were to simplify this fraction it would be 4/7
Solve this equation
7/9 + n = 3n + 1/9
subtract n from both sides
7/9 = 2n +1/9
subtract 1/9 from both sides
6/9 = 2n
divide both sides ÷2
n = 6/18 = 1/3
Answer:
n = [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{7}{9}[/tex] + n = 3n + [tex]\frac{1}{9}[/tex]
Multiply through by 9 to clear the fractions
7 + 9n = 27n + 1 ( subtract 9n from both sides )
7 = 18n + 1 ( subtract 1 from both sides )
6 = 18n ( divide both sides by 18 )
[tex]\frac{6}{18}[/tex] = n , that is
n = [tex]\frac{1}{3}[/tex]
Marissa's hair was 10 inches long and then she cut w inches
if your multiplying then it's 10w
SOLVE WITH AN EXPLANATION PLS
Answer:
Option COption BStep-by-step explanation:
Let's simplify this further to get our answer.
-5/6(12 - 6x + 18y)=> -60/6 + 30x/6 - 90y/6=> -10 + 5x - 15yLooking at the options, we can say that Option C and B are correct.
[tex]\\ \sf\longmapsto \dfrac{-5}{6}(12-6x+18y)[/tex]
[tex]\\ \sf\longmapsto \dfrac{-5}{6}(12)-\dfrac{(-5)}{6}(6x)+\dfrac{-5}{6}(18y)[/tex]
[tex]\\ \sf\longmapsto -5(2)-(-5x)+(-5)(3y)[/tex]
[tex]\\ \sf\longmapsto -10+5x-15y[/tex]
A farmer wants to increase the size of one of his square pens. The pen measures 10 feet on each side. The farmer plans to increase each side of the pen to be 160% of its current measure.
How many square feet larger is the area of the new pen than the area of the current pen?
Answer:
156 feet larger
Step-by-step explanation:
Alright so 160% of 10 is 16 , now we do 16x16 = 256
Now we do 10x10 to find the old square feet which is 100
256-100=156
Can someone PLEASE help me with this? Math sucks.
Which situation is most likely to show correlation but not causation?
a) The number of pets owned and the age of the owner.
b) The number of times a person drives to work and the amount they spend on gasoline.
c) The number of members on a soccer team and the number of uniforms purchased.
d) The number of seeds planted in a garden and the number of plants growing.
Answer:
a)
Step-by-step explanation:
Which situation is most likely to show correlation but NOT causation?
a) The number of pets owned and the age of the owner.
-Did the number of pets owned caused the owners age?
NO ...so Not causation
b) The number of times a person drives to work and the amount they spend on gasoline.
-Did the numbers of trips to work caused the money to be spent on gasoline? Yes....so Yes causation
c) The number of members on a soccer team and the number of uniforms purchased.
Did the number of members caused the number of uniform to be purchased ? Yes ...so Yes causation
d) The number of seeds planted in a garden and the number of plants growing.
Did the number of seeds planted caused the numbers of plants growing?
Yes ...so Yes causation
PLEASE HELP ME WITH GEOMETRY WORK
Step-by-step explanation:
An exterior angle of a polygon is an angle outside a polygon formed by one of its sides and the extension of an adjacent side. As shown in the figure below, for example, illustrates the exterior angles (red) of a regular convex pentagon (5-sided polygon).
The exterior angle sum theorem states that if a polygon is convex, the sum of its exterior angle will always be 360°. Therefore, the magnitude of each exterior angle of a n-sided polygon can be evaluated using the formula
[tex]\text{Exterior angle} \ = \ \displaystyle\frac{360}{n}[/tex].
Hence, for a convex 21 sided-polygon (henicosagon), each exterior angle will be
[tex]\text{Exterior angle} \ = \ \displaystyle\frac{360^{\circ}}{n} \\ \\ \\ \-\hspace{2.3cm} = \displaystyle\frac{360^{\circ}}{21} \\ \\ \\ \-\hspace{2.3cm} = 17.14^{\circ} \ \ \ (\text{2 d.p.})[/tex].
which sum is
[tex]\text{Sum of exterior angles} \ = \ 17.14^{\circ} \ \times \ 21 \\ \\ \\ \-\hspace{3.59cm} = \ 360.0^{\circ}[/tex],
agrees with the theorem mentioned above.
Art is recording the number of laps he walks around the track each day. On Day 1, he walks 8 laps. On Day 2, his number of laps
increases by 25%. On Day 3, he walks 1 less lap than he did on Day 2
What was the percent decrease from Day 2 to Day 3?
Step-by-step explanation:
I just answered this ...
to compare day 1 with day 2 :
100% = 8
1% = 100%/100
25% = 25×1% = 100% × 25/100 = 8 × 1/4 = 2
so, on day 2 he walks 8+2 = 10 laps.
on day 3 he walks then 10-1 = 9 laps.
so, now, to calculate the % decrease compared to day 2
100% = 10
1% = 100%/100 = 0.1
how many % is represented by this 1 lap he was walking less ?
1 / 1% = 1 / 0.1 = 10%
so he had a 10% decrease from day 2 to day 3.
Chris is looking at a map with the scale 1 inch: 5 miles. The length of Partridge Creek Road on the map is 4 inches. How long is the actual road?
The scale is 1 inch = 5 miles.
Multiply total inches by 5 miles:
4 x 5 = 20
Answer: 20 miles
!QUESTION ON PIC THX
Answer:
alright we know a variable next to a number like this 2x means what’re your
variable is, you multiply it. In our case this is very simple because it told us what x is
x= The left column
So the answers would be like
y=3+2(3)
y=3+2(4)
y=3+2(5)
y=3+2(7)
then you just multiply to find out what y equals
y=3+2(3)= y= 9
y=3+2(4)= y=11
y=3+2(5)= y=13
y=3+2(7)= y=17
Hope this helps :3
A sound wave has the from represented in the graph. Which of the following equations represent the graph? Select all that apply
f(x)=5cos(x + pi/4)
f(x)=5sin(x + pi/4)
f(x)=5cos(x + 2pi/4)
f(x)=5sin(x + 2pi/4)
f(x)=5cos(x + 3pi/4)
f(x)=5sin(x + 3pi/4)
Answer:
A. f(x)=5cos(x+pi/4)
F. f(x)=5sin(x+3pi/4)
Step-by-step explanation:
Answer: 1. A, F
2. B. C , F
3.A,C
Step-by-step explanation:I just finished the practice
An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triangle is X. Another side is 6 more than three times the length of the bottom of the triangle. The last side is 4 more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.
Answer: 10 + 5x
Step-by-step explanation: the base is x. One side is 6 + 3x. The last side is 4 + x. Now add them together 6 + 3x + 4 + x + x. Then simplify to 10 + 5x.
Math Help Please if you can
The lines are all originated from
The midpoint of the sides.
This means the inside lines are crossed in thirds.
sp = 1/3 of sz, so pz = sp x 2
pz = 3.5 x 2 = 7
answer: PZ = 7
A CD usually sells for $18.00. If the CD is 20% off, and sales tax is 6%, what is the total price of the CD, including tax?
Answer:
$15.26
Step-by-step explanation:
The amount of the discount is ...
20% × $18.00 = $3.60
so the tax is figured on the sale price of ...
$18.00 -3.60 = 14.40
The tax is ...
6% × $14.40 = $0.86
so the total price with tax is ...
$14.40 +0.86 = $15.26
On a coordinate plane, 2 right triangles are shown. The first triangle has points A (negative 1, 3), B (negative 1, 1), C (3, 1). The second triangle has points A prime (2, negative 2), B prime (2, negative 4), C prime (6, negative 4). Which statements are true about triangle ABC and its translated image, A'B'C'? Select two options. The rule for the translation can be written as T–5, 3(x, y). The rule for the translation can be written as T3, –5(x, y). The rule for the translation can be written as (x, y) → (x + 3, y – 3). The rule for the translation can be written as (x, y) → (x – 3, y – 3). Triangle ABC has been translated 3 units to the right and 5 units down.
Answer:
B and EStep-by-step explanation:
Given
ΔABC ⇒ A(- 1, 3), B(- 1, 1), C(3, 1)ΔA'B'C' ⇒ A'(2, - 2), B'(2, - 4), C'(6, - 4)Comparing the coordinates of the corresponding vertices, we see the difference:
x → x + 3, y → y - 5It means the ΔABC has been translated 3 units right and 5 units down
Correct answer choices are B and E
Answer:
b,e
Step-by-step explanation:
just did it
