Answer:
f(x) = x + 3y = x + 3x = y - 3Inverse is h(x) = x - 3
Answer:
f^-1(x) = x - 3
Whitney has 20 coins in her purse. Some are quarters and some are dimes. The total value of the coins is $3.35. How many quarters does Whitney have?
Answer:
I think it's 15 Quarters.
Step-by-step explanation:
The required number of dimes and quarter Whitney has is 11 and 9 respectively.
Given that,
Whitney has 20 coins in her purse. Some are quarters and some are dimes. The total value of the coins is $3.35. The number of quarters Whitney have is to be determined.
Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.
Here,
Let the number of dimes be x and the number of quarters be y,
According to ot the question,
x + y = 20
x = 20 - y - - - - (1)
and
0.1x + 0.25y = 3.35
From equation 1
0.1[20 - y] + 0.25y = 3.35
y = 9
Now,
x = 20 - 9
x = 11
Thus, the required number of dimes and quarters Whitney has is 11 and 9 respectively.
Learn more about simultaneous equations here:
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What is 2 1/3 ÷ 1 1/2??
Answer:
2 1/3 / 1 1/2 = 1.55555556
Step-by-step explanation:
Answer:
1.555555556
Step-by-step explanation:
because its the answer dude
Construct the graph of the direct proportion y=kx for
k=0
Of what line should I put it as? For example straight, ---------------
or up "forever" /
Welp, I think this is it?
The proportion y = kx for k = 0 will be y = 0 and construct a horizontal line passing through the origin that is the x-axis.
How to plot a graph?A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.
In order to plot the graph, we need to find out y's values corresponding to x's value
After that, we need to substitute the values of x's and y's into the coordinate geometry.
Given the direct proportion
y = kx
Now for k = 0
y = 0 so y = 0 is a horizontal line passing through the origin that is the x-axis.
In the graph below I have attached
Black line y = 4x ( k = 4)
Red line y = x ( k = 1)
Since k is decreasing the lines are becoming horizontal.
Hence "The proportion y = kx for k = 0 will be y = 0 and construct a horizontal line passing through the origin that is the x-axis".
For more information about the graph of a function
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What is the solution to this equation?
X-8 = 15
Α. x= 17
Β. χ= 13
C. χ= 7
D. χ= 23
Answer:
D.) X=23
Step-by-step explanation:
cause you add 8 to each side then simplify and you get 23
(2x+37-4)-(5x + 2)
This is super URGENT please helppp
Answer:
-3x+31
Step-by-step explanation:
Ok so first let's get the negative out of the parentheses
(2x+37-4)-(5x+2) -> 2x+37-4-5x-2
Now this will make it easier to simplify the equation
2x-5x+37-4-2
All you have to do from there is simplify
-3x+31
1. Angle 3 and Angle 6 are examples of which type of angle pair?
System of Equations : Money
Damian has been saving coins he finds on the ground for several months. So far he has found 37 coins that are either pennies or nickels. The combined value of his found pennies and nickels currently is $1.09. What is the system of linear equations, written using standard form, represents the situation if Damian found p pennies and n nickels.
Answer:
18 nickles 19 pennies
Step-by-step explanation:
value of 1 penny=$0.01
value of 1 nickle=$0.05
0.01p+0.05n=1.09
p+n=37
there are two methods for this system
I.substitution
p+n=37
p=37-n
we replace p in the first relation
0.01(37-n)+0.05n=1.09
0.37-0.01n+0.05n=1.09
0.04n=0.72
n=18 nickels
p+18=37
p=37-18=19 pennies
II.reduction
0.01p+0.05n=1.09
p+n=37
we multiply the second equation by 100
p+5n=109
p+n=37
we calculate the difference between the two relations
p-p+5n-n=109-37
4n=72
n=18
p+18=37
p=19
Two siblings are racing. The older sibling can run at a constant speed of 11 feet per second. The younger sibling can run at a constant speed of 7 feet per second. If the younger sibling is given a 32-foot head start in the race, how long will it take the older sibling to catch the younger sibling, and how far will the older sibling have run at that moment?(1 point)
The older sibling will catch the younger sibling after ___ second(s) and running___feet.
Answer:
8 seconds after running 88 feet
Step-by-step explanation: this is what it told me the answer was
Answer:
The older sibling will catch the younger sibling after 8 second(s) and running 88 feet.
Step-by-step explanation:
Older Sibling: 11ft 22ft 33ft 44ft 55ft 66ft 77ft 88ft
Younger Sibling: 32ft 39ft 46ft 53ft 60ft 67ft 74ft 81ft
The younger sibling started at 32ft because of the headstart. Each number was after 1 second. So this means it took 8 seconds for the older sibling to get to 88ft, and it took 8 seconds to get the younger sibling to 81ft.
I hope you can understand. :)
Jake says that there should be a decimal point in the quotient 142.45 ÷ 7.4 = 1,925 after the 2.
Part A
Which equation shows the best estimate for the quotient?
A. 150 ÷ 10 = 15
B. 150 ÷ 5 = 30
C. 140 ÷ 10 = 14
D. 140 ÷ 7 = 20
Part B
Use the drop-down menus to explain whether Jake is correct.
Jake
Choose...
correct because 192.5
Choose...
close to the estimate. The decimal point belongs after the
Choose...
.
Answer:
ok
Step-by-step explanation:
2. Which equation is true when x=3?
A. 8x = 28
B. X - 19 = 16
C. 28 + x = 25
D. S =1
Answer:c
Step-by-step explanation:
what is the difference between bullying and conflict
Answer:
Bullying is making fun of or hurting someone and a conflict is a disagreement that is serious
Step-by-step explanation:
How far is `10\%` of a `2,000`-kilometer trip?
Fill in the blanks to tell how the point of view in this part of the passage is different from the point of view in the making of a mountain 
Answer:
important and agree,
Step-by-step explanation:
I did this
Answer:
important and agrees with.
Step-by-step explanation:
(no reporting this.)
hope this helps!
what is the degree of x^6+4x-3
Answer:
1.2599
Step-by-step explanation:
A company makes cylindrical candles by melting wax and putting into 3 inch diameter cylindrical jars one block of candlewax with a volume of 360 in.³ is used to make a box of 10 identical candles
I believe the answer is 1in
Answer: I said 1 inch. I am not 100% sure.
Step-by-step explanation:
What are some things to be aware of that can lead to higher than expected totals when making a purchase or checking out
Answer:
taxes
Step-by-step explanation:
Taxes, shipping (if checkout is online), and false advertisements.
What’s 5,700 divided by 70
Answer:
81.4285714286
Step-by-step explanation:
Question 22 of 25
Add.
4x -5x+3
2x* +7X-8
OA. 6x- 2x+5
OB. 6x + 2x-5
OC. 6x+ 12x-5
D. 6x 2x+11
Answer
B
Step-by-step explanation:
Is the answer !
Answer:
The answer is B
Step-by-step explanation:
YEAH its is, And god is GIOD
Number of
Accidents
Number of
People
6
1
3
1
Answer:
there would be 11 accidents of people
Step-by-step explanation:
6+3+1+1= 11
or
6+3+2= 11
or
6+5 =11
Why is the boundary line for aninequality involving ng dashed rather than solid?
Solve for the monkey. Show all work ty
Answer:
Monkey: -5/2
Step-by-step explanation:
monkey = x
3x + 4 = -x - 6
3x + x = -6 - 4
4x = -10
4x/4 = -10/4
x = -5/2
Check:
3x + 4 = -x - 6
3(-5/2) + 4 = -(-5/2) - 6
-15/2 + 4 = 5/2 - 6
-15/2 + 8/2 = -3.5
-7/2 = -3.5
-3.5 = -3.5
Answer:
-2.5
Step-by-step explanation: 3x+4=-1x-6
+1x +1x
4x+4=-6
-4 -4
4x=-10
divide _ _
4 4 = -2.5
What is the following product?
Answer:
10.25 which is equal to letter c
Step-by-step explanation:
I used a calculator and figured out which equals it
I don't understand. Please Help Me!
Answer:
what
Step-by-step explanation:
Carmen deposits $4000 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in the first 3 years?
Answer:
$360
Step-by-step explanation:
I = Prt
I = 4000 * 3 * 3%
I = 12000 * 3% (Convert 9000 and 3% into fractions.)
I =12000/1 * 3/100 (100 and 12000 have a GCF of 100)
I = 120/1 * 3/1 (Disregard the over 1 portion.)
I = 120 * 3 (Multiply 120 by 3 to get 360.)
I = $360
A manufacturer knows that their items have a normally distributed length, with a mean of 16.2 inches, and standard deviation of 0.9 inches. If one item is chosen at random, what is the probability that it is less than 16.4 inches long
Answer:
57.926%
Step-by-step explanation:
Calculation for the probability that it is less than
16.4 inches long
Using this formula
z = (X - μ) / σ
Where,
X represent Date=16.4
μ represent Mean=16.2
σ represent Standard deviation=0.9 inches
Let plug in the formula
z = (16.4 - 16.2) /0.9 inches
z=0.2/0.9 inches
z = 0.2
Using Z-score table to find the area of 0.2
z=0.57926*100
z=57.926%
Therefore the probability that it is less than
16.4 inches long is 57.926%
Determine whether the points on the line rise, fall, are horizontal, or vertical.
(2, -4) and (4, -1)
Answer:
The points rise.
Step-by-step explanation:
Points on a line have the following format: (x,y)
They rise if: As x increases, so does y.
They fall if: As x increases, y decreases.
They are horizontal if: As x increases, y remains constant.
They are vertical if: x is constant as y changes.
In this question:
Points (2,-4) and (4,-1).
x increases from 2 to 4.
y increases from -4 to -1.
That is, both increase, so the points rise.
Review: Key Concepts
.
The equation of a linear function in slope-intercept form is written as
y = mx + b, where mand b are real numbers, m is the
and b is the
y-intercept of the line
.
Changing the value of b moves the graph
or
Changing the value of m affects the
and whether the line
slopes up or down from left to right.
Answer:
m=slope
up or down
steepness
Step-by-step explanation:
Not really much to explain here you could've found this stuff on khan academy or math is fun to be honest lol
Answer:m =Slope
up or down
steepness
Step-by-step explanation:
Jared is rounding some numbers to the nearest tenth. Select the number that will have a 3 in the tenths place after rounding. (2 points)
3.03
4.28
5.39
6.43
Answer: B) 4.28
The 2 is in the tenths place, and 8 is to the right of it. The 8 is five or larger, so that means we bump the 2 up to 3. We erase the 8. So we go from 4.28 to 4.3; we have a 3 in the tenths place as instructed.
We can think of 4.3 as 4.30
Note how 4.28 is closer to 4.30, than it is to 4.20
Side notes:
Choice A rounds to 3.0 or just 3Choice C rounds to 5.4Choice D rounds to 6.4Need help for dis question what is it ??
Answer:
2 * 16 - 4*(3 + 5) = 32 - 32 = 0
Step-by-step explanation:
Candace deposited $3,587.39 into a savings account with an interest rate of 4.2% compounded twice a year. about how long will it take for the account to be worth $5,000?
Answer:
Solution in photo
Step-by-step explanation: