When a volcano erupts, the height of the peak is reduced and the upper portion is removed. The height of a volcano after it erupted was 8,219.5 feet. This was 85% of the volcano's original height. What was the original height?
(answer this and show your work please thank you)
The original height was _answer this_ feet.
please help me with this thank you
Answer:
9670 feet
Step-by-step explanation:
The height given (8219.5 ft) is 85% OF ORIGINAL, hence original is much higher. But how do we figure this out?
we translate word problem to equation.
8219.5 IS 85% of TOTAL
Firstly, 85% = 85/100 = 0.85
Remember, is means =
of means multiplication
So we have:
8219.5 = 0.85 * Total
Hence, total = [let total be 7]
8219.5 = 0.85 * t
t = 8219.5/0.85 = 9670 feet
Tanya wants to earn enough money to buy a new Tigers shirt. So far she has earned $20, which is 50% of the money she needs to buy the shirt. How much does the shirt cost?
(Hint: It may be useful to draw a picture.)
The shirt costs ?
dollars.
Answer:
I think the shirt cost 40 dollars cause 50% of 40 is 20
Step-by-step explanation:
Please help me in a hurry
Answer:
1049.05
Step-by-step explanation:
Answer:
1049.05
Step-by-step explanation:
Solve for a.
12494a-194879=1928777
Answer:
169.974068
Step-by-step explanation:
12494a-194879=1928777
+194879= +194879
12494a = 2123656
÷ 12494 = ÷ 12494
a = 169.974068
Can somebody help with number 1
Answer:
A.4:00
B.1-2 p.m.
C. ii iii
Step-by-step explanation:
Please answer C: <3!
178·37−37·78
Plz find in binary
If not able: Say no solution.
Chart and assignment above, any actual help is appreciated!! Eighth grade math :)
1. How many cars per day does Car Mart sell? How did you use the table to find this rate?
2. How many cars per day does Winston's sell? Explain how you found this rate.
3. Which dealership sells more cars per day? How many more?
4. Which dealership started with more cars? How many more cars did that dealership start with?
Explain how you found your answer.
1. Car Mart sells 11 cars a day.
2. Winston's sells 10 cars per day.
3. Car Mart sells one more car per day.
4. Winston started with more cars.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Rate for Winston auto dealer is (32 - 12)/(3 - 5) = - 10.
Rate for cart mart is (32 - 43)/(3 - 2) = - 11.
Car Mart sells 11 cars a day.
Winston's sells 10 cars per day.
Car Mart sells more cars per day.
As cart mart has 43 crs left on the second day he must had 10 more cars on the starting day which is 53.
As Winston had 32 cars on the 3rd day it must had (32 + 11 + 11 ) = 54 cars on the started day so Winston started with more cars.
learn more about lines and slopes here :
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On a coordinate plane, a line goes through points (negative 2, 4) and (0, negative 4). Linear functions are expressed by the graph and equation. Select all that apply. The slope is positive for both functions. The equation has a steeper slope than the line in the graph. The y-intercept is the same for both. The graph and the equation express an equivalent function.
Answer:
C and D
Step-by-step explanation:
The y-intercept is the same for both.
The graph and the equation express an equivalent function.
Answer:
c and d
Step-by-step explanation:
edge 2020
A bottlenose dolphin is 10 feet below sea level. Then it begins to dive at a rate of 9 feet per second. What is the equation of the line that represents its elevation, y, after x seconds?
A.
y = 9x − 10
B.
y = -9x − 10
C.
y = 9x + 10
D.
y = -9x + 10
Answer:
B. y=-9x-10
Step-by-step explanation:
The dolphin is starting 10 feet below sea level so the y-intercept (or b in slope-intercept form) would be negative 10. Diving means going down, or a negative slope, so the slope would be -9. When you plug those numbers into y=mx+b, you would get y=-9x-10.
helppppp..............
Answer:
B
Step-by-step explanation:
I am not sure if this correct since I used my notes.
Answer:
Yeah I think its B too.
Step-by-step explanation:
Use random numbers of balloons and sandbags
What is the Inverse Operation of a Square Root ?
Answer:
The inverse is squaring a number
Step-by-step explanation:
i hope this helps
Power is the result of multiplying two numbers together. The inverse operation of a square root is a square.
What is power?Power is the result of multiplying two numbers together. Power is typically expressed by a base number and an exponent. The base number indicates the number being multiplied. The exponent, which is a little number printed above and to the right of the base number, indicates the number of times the base number is multiplied.
The radical is the symbol that is used to represent the root in the expression n√x. When the value of n in this radical is 2, then it is known as the square root.
The inverse operation of a square root is a square, which means that the expression is needed to be multiplied by itself.
Hence, The inverse operation of a square root is a square.
Learn more about Power here:
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Given f(x)=2^x and g(x)= f(x-3)+4, write the new function rule (equation) for function g and describe (using words) the two transformations that occur between the function f and the function g
*Some good words to consider using would include horizontal, vertical, stretch, compression,
translation, reflection, and phrases such as “to the left”, “to the right”, “up”, “down”, “by a
factor of__, or ”over the __ axis”.
Answer:
Just like Transformations in Geometry, we can move and resize the graphs of functions. Let us start with a function, in this case it is f(x) = x2, but it could be anything: ... g(x) = x2 + C. Note: to move the ... If you change that to (age+4) = 25 then you will get it when you are 21. Adding 4 ... Example: the function v(x) = x3 - x2 + 4x.
Step-by-step explanation:
The graph of the function y = 2x⁴ - 5x³ + x² - 2x + 4 is plotted and attached.
What is a polynomial?Polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s). For example -
y = 4x⁴ + 3x³ + 2x² + 6x + 7
We have the following polynomial functions -
f(x) = 2ˣ
g(x) = f(x - 3) + 4
We can write g(x) as -
g(x) = 2ˣ ⁻ ³ + 4 = (2ˣ/2³) + 4
g(x) = (2ˣ/8) + 4
The graph of f(x) is stretched by the factor of 1/8 and is shifted 4 units upwards.
Therefore, the graph of f(x) is stretched by the factor of 1/8 and is shifted 4 units upwards to given the function g(x)
To solve more questions on polynomials, visit the link below-
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The graph shows the amount of water that remains in a barrel after it begins to leak. The variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. What does the y-intercept represent?
A. the amount of water that is added to the barrel each day
B. the amount of water that remains in the water barrel
C. the amount of water that is initially in the water barrel
D. the amount that the water barrel decreases each day
Answer:
I am pretty sure it is D
Step-by-step explanation:
(03.04 LC) EXPLAIN!!!!!!
The sum of two numbers is 52. The greater number is 4 more than the smaller number. Which equation can be used to solve for the smaller number? (5 points)
Select one:
a. x − (x + 4) = 52
b. x + (x + 4) = 52
c. x(x + 4) = 52
d. x(x − 4) = 52
Explain how the activity supports the skill.
The activity i chose is track and the skill it supports it speed can someone please explain how track supports the skill speed please!
RE-ASKED
Sanjay solved the equation below. Which property did he use to determine that 7 x + 42 = 42 is equivalent to 7 x = 0?
7 (x + 6) = 42. 7 x + 42 + 42. 7 x = 0. x = 0.
distributive property of equality
subtraction property of equality
multiplication property of equality
division property of equality
Answer:
subtraction property of equality
Step-by-step explanation:
Answer:
its B. subtraction property of equality
Step-by-step explanation:
i did it on edge
Sketch the image of quadrilateral PQRS under the following dilations:
The dilation centered at R with scale factor 2.
The dilation centered at O with scale factor
The dilation centered at S with scale factor
Answer:
ROS
Step-by-step explanation:
Please answer! Correct answers get brainiest.
Answer:
7/5 y --> y+ 2/5y
0.68y --> y - 0.32y
3/5y --> y - 2/5y
1.32y --> y+ 0.32y
Step-by-step explanation:
Pretend there is a 1 in front of each y that doesn't have a number (coefficient) in front of it. 1 = 5/5, and then just solve for the fraction expressions.
PLEASE HELP WILL GIVE BRAINLIEST IF FIRST AND RIGHT!!
Answer:
x=2.2
Step-by-step explanation:
You have $50 to spend at the fair. Admission is $5 and tickets are $0.50 each. How many tickets can you buy? {Write an equation.}
Answer:
You can buy 90 tickets
The scatter plot shows the number of days that several homes have been for sale co.pared to the number of times the house has been viewed.
Answer:
It would be the scattered pot - how many
Step-by-step explanation:
PLEASE HELP!!!!! AHHHH IM BAD AT MATH!!!!
Please answer C: <3!
Answer:
B. subtract 8
Step-by-step explanation:
because in PEMDAS subtract is last
please help will give BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST for correct answer!!!!!!!!!!!!!
Answer:
its 25in
Step-by-step explanation:
because its not half way its over and no why it could be under hope this helps
Help please!!!!! this is a test!!!!
Evaluate C = 2r, for r = 8.
C = 16
C = 10
C = 28
C = 16
Answer:
16
Step-by-step explanation:
Given
C=2r and r=8
So
C=2×8 (as r=8)
C=16 (ans)
Answer:
16
Step-by-step explanation:
HELP PLEASE!! I WILL TRY AND GIVE BRAINLEIST TO THE MOST DETAILED ANSWER ON BOTH. INCOMPLETE ANSWERS WONT BE GIVEN BRAINLEIST. ALSO, DON'T USE GOOGLE. PLEASE! I'M IN NEED OF HELP.
Answer:
100 x 38
Step-by-step explanation:
100
x 38
-------
3800 <------ Is the product. It is bshown lby...
The left side
Has been shaded green with 46 blocks.
The red is the same thing with 46 blocks.
The blue has eight blue blocks from the second side.
The second side:
This show's about 38 shaded blue blocks.
The white side doesn't.
I hope this helps! My brother helped me figure out this also.
Help plz rlly need the answer
This is the last oneeee
Answer:
D
Step-by-step explanation:
It is first rotated 90 degrees clockwise
Then it is translated 6 units up and 4 units to the right