Answer:
El CD costaba $100 inicialmente.
Step-by-step explanation:
Dado que la información indica que el porcentaje de descuento es 20% y ese descuento tiene un valor de $20, puedes usar una regla de tres para encontrar el valor que representa el 100% que sería el valor inicial del CD dado que el 20% del valor es igual a $20:
20% → 20
100% → x
x=(100*20)/20=100
De acuerdo a esto, la respuesta es que el CD costaba $100 inicialmente.
The length of the base of a square pyramid is 30cm. The height of the pyramid is 45cm. What is the volume of the pyramid in cubic cm?
Step-by-step explanation:
45x30=1350cm
the ans is 1350cm
solve using the quadratic formula
can someone help I will mark you! ❤️❤️❤️
Answer:
slope is 3/2
Step-by-step explanation:
To solve for slope: y2-y1/x2-x1.
2 points can be (3,1) and (5,4)
4-1/5-3 ---> 3/2.
Also the slope is going up by 3 units and across by 2 units
Use an informal argument to find the value of
X.
answer asap!
Answer:
x= 115
Step-by-step explanation:
hope it helps
Find the value of x and y,
Can someone help???
Answer:
x is 30° and y is 20°.
Step-by-step explanation:
In an equilateral triangle all the angles form 60°.
1) 2x = 60
x = 60/2
x = 30°.
2) 3y = 60
y = 60/3
y = 20°.
x is 30° and y is 20°.
Answer:
y=20
x=30
Step-by-step explanation:
All the angles in an equilateral triangle is equal to 60 degrees. Knowing this, we can set up the following equations:
3y=60
2x=60
3y=60
Divide both sides by 3
3y/3=60/3
y=20
2x=60
Divide both sides by 2
2x/2=60/2
x=30
I hope this helps!
Find the greatest common factor pf 110, 40, and 120
Answer:
10
Step-by-step explanation:
Answer:10
Step-by-step explanation:The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
The factors of 110 are: 1, 2, 5, 10, 11, 22, 55, 110
The factors of 120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
Then the greatest common factor is 10.
Solve the following equation: 2x – 4 = 4x +8. Make sure to not only solve the problem, but to list out the steps using academic vocabulary.
What is the solution to the system of equations below?
2x + 5y = 32
Answer:
x = 16 -5/2y
Step-by-step explanation:
2x + 5y = 32
2x = 32 -5y
/2 /2
x = 16 -5/2y
Answer:
y= 2x/5 + 6.4
Step-by-step explanation:
divide both sides by 2x
5y = 2x + 32
divide both sides by 5
y = 2x/5 + 6.4
follow same step to solve for x except first divide by 5y instead of 2x
d
f
5 50
10 100
15 150
20 200
Each week, Raymond orders 10 pounds of dog food for each dog at the local animal shelter. The table shows the relationship
between the number of dogs, d, and the pounds of dog food, f.
Which equation models the relationship between the independent and dependent variables?
A)
d = 10f
B)
f = 100
C)
d = 10 + f
D)
f = 10 + d
Answer:
the answer is C
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
I got A because if D= 10f that means the number of dogs (5) multiplied by 10 would be 50 (Pounds of dog food)
share £160 in the ratio 1:9
Answer:
£16 : £144
Step-by-step explanation:
sum the parts of the ratio , 1 + 9 = 10 parts
Divide the amount by 10 to find the value of one part of the ratio
£160 ÷ 10 = £16 ← value of 1 part of the ratio, then
9 parts = 9 × £16 = £144
£160 in the ratio 1 : 9 is £16 : £144
will give brainliest to right answer please help!! 15 points -A sample of a radioactive isotope had an initial mass of 370 mg
in the year 2000 and decays exponentially over time. A
measurement in the year 2008 found that the sample's mass
had decayed to 110 mg. What would be the expected mass of the
sample in the year 2017, to the nearest whole number?
Answer:
78 mg
Step-by-step explanation:
370 mg - 110 mg = 260 mg (amount decayed in the 8 total years)
260 mg ÷ 8 years = 32.5 mg decayed per year
32.5 × 9 years (years between 2008 and 2017) = 292.5 mg
370 mg - 292.5 mg = 77.5 mg, rounded to 78 mg
the expected mass of the sample in the year 2017, to the nearest whole number is 0.
What is the formula for exponential growth and exponential decaying function?The formula for exponential growth is y = y₀.e^(kt).
The formula for exponential decay is y = y₀.e^(-kt).
Given, Initial mass(y₀) = 370 mg.
After 8 years (t = 8) the mass decayed to y₈ = 110 mg.
∴ 110 = 370.e^(-8k).
e^(-8k) = 3.36.
lne^(-8k). = ln(3.36).
- 8k = 1.28.
k = - 1.28/8.
k = - 1.6.
Now expected mass of the sample in 2017 which in 9 years from 2008 will be,
y = 110.e^(-1.6×9).
y = 110.e^(-14.4).
y = 110/e^(14.4).
y = (110/1794074.78).
y = 6.13^(-5) mg.
y = 0.0000613 mg.
learn more about exponential decay here :
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need help with area answer me questions would be nice
DOMAIN AND RANGE PLS HELP
Answer:
44
Step-by-step explanation:
The range is possible y-values so we just plug in all the domains to find the range
When x=-4, y=44
When x=0, y=0
When x=1, y=-1
When x=2, y=2
When x=3, y=9
When at the function at x=4, it is the largest so y=46
Do the ratios 7/3 and 6/2 form a proportion.
Yes or no
Answer:
no it not really the same
Step-by-step explanation:
Answer:
No they are not proportional
Step-by-step explanation:
You first cross multiply
since the products do not match they are not proportional
If you have any more quesitons feel free to ask - Mark
Selena's favorite chocolate chip cookie recipe calls for 111 teaspoon of salt for every {2 \dfrac{1}{4}}2
4
1
2, start fraction, 1, divided by, 4, end fraction cups flour.
In Deepak’s recipe, the relationship between teaspoons of salt (\text{t})(t)left parenthesis, start text, t, end text, right parenthesis and cups of flour (\text{c})(c)left parenthesis, start text, c, end text, right parenthesis is shown on the graph below.
Whose cookies are saltier?
Answer:
Deepak’s
Step-by-step explanation:
I know it is cause I have the same question on khan academy and I got it right.
So you can just trust me
I'll show you
-6 + (-7) = adding negative numbers
Answer:
Step-by-step explanation:
Adding 2 negative numbers is like subtracting. You do -6 - 7. Negative 7 is literally - 7. -6 -7 = -13
Answer:
-6 + (-7) = -13
math su.cks......................................................................................................................................................................................................................... on suc.kers! i like bad jokes.
Answer:
Step-by-step explanation:
Ok
Answer:
what
Step-by-step explanation:
:(
¿Qué numero es mayor que -5/4?
-3/2
-1
-2
-3/4
Otros: me escriben cuál es
Answer:
10 /8es una fracción equivalente a5/4 15/12 y multiplica el número por un mis mo número y te saldrán infinitoss
Answer:
3/4 es mayor que -5/4 ..........
HELP PLS 20 POINTS AND IF UR ANSWER IS RIGHT I GIVE THE BRAINLY CROWN
yeah i need help with this explain it if you want cause my brain cells went poof
Answer:
A
56000
700
Step-by-step explanation:
Calculate to determine that correct answer. there should be no remainder
Answer:
A is the correct answer for you equation I hope this got you an A goodbye and thank you
please help omg ♀️ !!
Answer:
first blank: 50-10=40
second blank: 50-20=30
third blank: 50-25=25
Step-by-step explanation:
hope this helps!
Answer:
Step-by-step explanation:
40 30 25
10 20 25
40 30 25
Rena's rowboat drifts 23 feet from shore,
followed by 9 more feet. The rowboat's current
position can be represented by -23 + (-9). What
integer represents the rowboat's position?
Answer: 23 + 9 = 32
Step-by-step explanation:
A museum has an aquarium in the shape of a right rectangular prism that is 22.9m long, 7.5m wide and 4.6m high. What is the volume, rounded to the nearest cubic meter, of the aquarium?
Answer: The volume of the aquarium = 790 cubic meters
Step-by-step explanation:
Volume of rectangular prism = length x width x height
Given: An aquarium is in the shape of a right rectangular prism that is 22.9m long, 7.5m wide and 4.6m high.
Volume = [tex]22.9\times7.5\times4.6[/tex]
i.e. Volume = 790.05 cubic meters
i.e. Volume ≈ 790 cubic meters (rounded to the nearest cubic meter)
Hence, the volume of the aquarium = 790 cubic meters (approx)
How much greater is 68grams compared to 62grams.
Give your answer as a percentage to 2 significant figures.
68 grams is 8.82% greater than 62 grams.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
68 grams and 62 grams.
The difference between 68 and 62 grams.
= 68 - 62
= 6 grams
The percentage of difference.
= 6/68 x 100
= 8.82%
Thus,
68 grams is 8.82% greater than 62 grams.
Learn more about expressions here:
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The Greatest Common Factor (GCF) of 24, 36, and 48 is O A. 2 O B. 24 O C. 12 O D. 6
Answer: C. 12
Step-by-step explanation:
Answer:
Greatest common factor (GCF) of 24, 36, 48 is 12.
Step-by-step explanation:
i searched it up;)
if zaeirr has 10 dogs and lamarr has 2 dogs how many more dogs does zaeirr have than lamarr?
Answer: 8
Step-by-step explanation:
For this problem, we would have to subtract the larger number of dogs by the smaller number of dogs. Zaierr has 10 dogs, and Lamarr has 2 dogs. We would have to subtract the number 10 by the number 2 to get our answer.
10 subtracted by 2 is equal to the number 8.
The answer to our question is 8.
2.
Here is a recipe for Scones
Scones
Serves 8 people
Butter 60g
Flour 270g
Baking Powder 2 teaspoons
Buttermilk 180ml
How much of each ingredient would be needed to make scones for 2 people?
The sum of a number x and 2,496 is 17,344. What is the value of x
Answer:
x = 14,838
Step-by-step explanation:
equation is
x + 2,496 = 17,344
x = 17,344-2,496
x = 14,838
hope it helps you ☺️
The value of x when the sum of a number x and 2,496 is 17,344 should be considered as the 14,838.
Calculation of the value of x:
Since The sum of a number x and 2,496 is 17,344
So here the following equation be applied
x + 2,496 = 17,344
x = 17,344-2,496
x = 14,838
hence, The value of x when the sum of a number x and 2,496 is 17,344 should be considered as the 14,838.
Learn more about sum here: https://brainly.com/question/13877879
A pair of Jordans is normally $180. It is on sale for 20% off.
Find the price after the discount.
i need helpppp
Answer:
144$
Step-by-step explanation:
180/100 = 1.8 subtracted from the price per percent
1.8*20 = 36
180-36 = 144
A car is 180 inches long. A truck is 75% longer than the car.How long is the truck?
Answer:
The truck is 315 inches long.
Step-by-step explanation:
Answer:
the truck is 315 inches long
three times a number is 180 less than seven times the number. what is the number?