Answer:
Kylie has 6 Nickels and 18 dimes
Step-by-step explanation:
Variable definitions:
x=the number of nickels
y=the number of dimes
One nickel is worth $0.05, so x nickels are worth 0.05x. One dime is worth $0.10, so y dimes are worth 0.10y. The total 0.05x+0.10y equals $2.10:
0.05x + 0.10y = 2.10
Since she has a total of 24 coins, we know x+y must equal 24.
x + y = 24
Write System of Equations:
0.05x + 0.10y = 2.10
x + y = 24
Solve for y in each equation:
0.05x + 0.10y= 2.10 x + y = 24
0.10y = 0.05x + 2.10 y = -x + 24
0.10y = -0.05x + 2.10
0.10 0.10
y = -1/2x + 21
The x variable represents the number of nickels and the y variable represents the number of dimes. Since the lines intersect at the point (6,18) we can say:
Kylie has 6 Nickels and 18 dimes
We want to solve a system of equations to see how many nickels and dimes Kyle has. We will see that she has 6 nickels and 18 dimes.
Finding the system of equations:
First, let's define the variables, we will use:
x = number of nickelsy = number of dimes.We know that there are 24 coins, then:
x + y = 24
We know that the total whort of the coins is $2.10, then:
x*$0.05 + y*$0.10 = $2.10
Then the system of equations is:
x + y = 24
x*$0.05 + y*$0.10 = $2.10
Solving the system of equations.Here we need to graph both equations and find where they do intercept, the graph of the system can be seen below:
We can see that the intersection is at the point (6, 18)
So this means that she has:
6 nickels and 18 dimes.
If you want to learn more about systems of equations, you can read:
https://brainly.com/question/13729904
-35+7k = -7+7(k-4)
is it IMS (Infinite solutions)
one solution
no solution?
Answer:
-35+7k=-7+7 (k-4)-42=-14 (k-4).This the simplest way to simply the work.What is the value of h(−2) when h(x)=3x+1?
Enter your answer in the box.
h(−2)=
Answer:
-5
Step-by-step explanation:
The answer is -5 because we have -2 as x. The function is h(x)=3x+1. 3 times -2=-6. When we add 1 to the result, we have -5 as the answer. Hope it helps!
The value of h(−2) when h(x)=3x+1 is h(-2) = -5
From the question,
The given function is h(x)=3x+1
To determine the value of h(-2), we will put x = -2 and evaluate
From
h(x)=3x+1
h(-2) becomes
h(-2)=3(-2) + 1
h(-2) = (3× -2) + 1
h(-2) = (-6) + 1
h(-2) = -6 + 1
h(-2) = -5
Hence, the value of h(−2) when h(x)=3x+1 is h(-2) = -5
Learn more here: https://brainly.com/question/17762942
Multiply (X^4+1)(3x^2+9x+2)
Answer:
whatever they said up there
yee yee
Step-by-step explanation:
y = 4x - 6
m =
b=( , )
find the slope and y
✨
Answer:
2,4 y=4
Step-by-step explanation:
Answer: m=4x
b=-6
Step-by-step explanation:
I am pretty sure you are just finding those things in the question right? If not I apologize.
4(n+10)????????????????!!
Answer:
4n+40
.................
Find the 18th term of the sequence. 4.8, 5.1, 5.4, 5.7, ...
A line with a positive slope is parallel to one of the lines shown. What is its slope? Use the graph shown below.
The slope is 0.75 as 3/4 = 0.75
Answer:
Step-by-step explanation:
Only the blue line has a positive slope. So the new line is parallel to the blue line.
Clearly, the blue line goes through the point (0, 3) (this is the y-intercept). Follow this blue line upward and to the right until it intersects the horizontal line at the top of the diagram. We must estimate the x-value of this point of intersection. A good approximation would be 5 1/3.
Now estimate the slope of the blue line. Starting at (0, 3), we move 5 1/3 units to the right (this is the "change in x," or "run") We end up at (5 1/3, 3).
Now, from the horizontal line y = 3 upward to the horizontal line at the very top of the graph, is 5 units. This is the "rise."
Thus, the approximate value of the slope here is
5 5 15
m = rise / run = ---------- = -------------- = ----------- = m
5 1/3 16/3 16
i need help again please I need help
Answer: Assembly
Step-by-step explanation: I’m just guessing, but I think it’s assembly because, well, there’s a lot of people assembled there
problem 6 and 4 please
Perform the indicated operation.
11(-2)
22
9
-9
-22
Answer:
-22
Step-by-step explanation:
When you multiply a positive and negative number together, it becomes negative.
Multiplication is repetitive addition.
11(-2) = -11 + -11 = -22
find the perimeter
Answer:
61 7/20
Step-by-step explanation:
PLEASE HELP ASAP for 8 points
Best answer will be marked as Brainliest
Plz hurry
Answer:
∠COS = 30°
Step-by-step explanation:
∠BPO = 120° + x
∠COS = x
Alternate Interior/Exterior is congruent if two parallel lines are intersected by a transverse.
∠BPO = ∠COP
∠COP = 120° + x
∠COP + ∠COS = 180°
120° + x + x = 180°
120° + 2x = 180°
2x = 60°
x = 30°
please somebody i need help with this question :c
A rectangular prism is completely packed with 84 cubes of edge length fraction 1 over 3 inch, without any gap or overlap. Which of these best describes the volume of this rectangular prism?
Step-by-step explanation:
The volume of a cube is s^3 where s is the length of a side..
So If you have 84 cubes with sides of 1/3 in the total volume is:
v=84(1/3)^3 in^3
v=84/27 in^3
v=28/9 in^3
V=3.11 in^3 (to nearest hundredth of a cubic inch)
A decorator wants to line the bottom of 3 drawers with paper. If the bottom of each drawer measures 36 inches by 20 inches, how many squares inches of paper are needed?
Answer:
168 I believe
Step-by-step explanation:
Solve 4(x+2) - 5 = -21
Answer:
x=−6
Step-by-step explanation:
Answer:
your answer will be -6
Step-by-step explanation:
4x+8-5= -21
8-5=3
4x + 3 = -21
subtract three from both sides
4x= -21
-21 divided by 4
= -6
A trampoline has a jumping surface that is 10.3 feet long and 9.2 feet wide. What is the area of the jumping surface?
Answer:
10.3*9.2
the answer is 94.76
:)
find the slope and the y intercept 2x+y-2=0
Answer:
Slope: -2; Y-intercept: 2
Step-by-step explanation:
To find the slope, you can rewrite the equation into standard form:
2x+y-2=0
2x+y=2
y=2-2x
The slope is the coefficient of x, which is -2. The y-intercept is the other number, which is 2.
Step-by-step explanation:
gradient= ‐2
y‐ik intercept=2
explanation: rearrange the equation to make y your subject
from the equation , you already know that ‐2 is m (from the equation y=mx +c , whereby m is your gradient) which means ‐2 is your gradient.
from your equation you would also know that 2 is your y‐intercept. also from the equation y=mx+c is your UK intercept
help me and the 1st 2 answer will get brainliest and i need asap im in the test
Answer:
C
Step-by-step explanation:
C
Answer: yea it is c
Step-by-step explanation:
What is the sun's radius in miles.
Answer:
432,690 mi I think
Answer:
432,690 miles
need help fastttt plssss I give the brainliest answer to who is correct plss
Answer:
$6.75
Step-by-step explanation:
I took math in high school
Mrs.Santos has two kinds of flowers in her garden. the ratio of lilies to daisies in her garden is 3:2
if there are 12 lilies what is the total number of flowers in her garden
Answer:
there would be 18 total flowers in her garden
Answer:
12:8
Step-by-step explanation:
I think this is the answer. I think this help
help!!
Kathryn had $20 saved and saved $5 each week, w, after. Write an algebraic expression to represent the amount she has saved after a certain number of weeks.
Answer:
20 + 5w
Step-by-step explanation:
20 + 5w
Were 20 is the amount she already has, and 5w is 5 times the unkown amount of weeks (w).
Pls consider marking me as Brainliest! It would mean a lot!
Answer: 5w + 20
Step-by-step explanation:
Because if she earns 5 every week that’s 5w and if she already had 20 that’s +20. So it’s 5w + 20 or 20+5w
Pls answer
(5x+7) (8x-7) solve for x
Answer:
where is the =...........
Answer: 40x2+21x−49
Step-by-step explanation:
h. How many yards are there in 255ft? (3 ft = 1 yd)
Answer:
85
Step-by-step explanation:
Answer:
85 yards
Step-by-step explanation:
You just go online to find the answer.
What is the slope of the line represented by the equation y= -1/2x + 1/4
Answer:
-1/2 or -0.5
Step-by-step explanation:
answer is above
Two laboratory technicians are running product quality tests. One technician takes 6 minutes less than the
other. What equation would give the amount of time, t, it would take to run the tests if the technicians work
together to split the work on the different tests?
Answer:
The time it will take will be ;
t = (2x -6)/(x^2-6x)
Where x is the amount of time
in minutes taken by the technician who is slower
Step-by-step explanation:
We want to write the time it would take to run the tests if the technicians work together.
Let the time taken by the first technician be x minutes
The time that would. taken by the second is 6 minutes less which is (x -6) minutes
So if they work together, how long will it take?
That would be ;
t = 1/x + 1/(x-6)
t = (x + x -6)/(x(x-6))
t = (2x -6)/(x^2 -6x)
The time it will take if they both work together is ;
t = (2x -6)/(x^2-6x)
where x minutes is the amount of time taken by the technician who is slower of the two
The perimeter of a rectangle is 48 centimeters. The relationship between the length, the width, and the perimeter of the rectangle can be described with the equation 2⋅length+2⋅width=48. Find the length, in centimeters, if the width is 10 centimeters
Answer:
The length of the rectangle is 14 cm
Step-by-step explanation:
Here, we want to find the length of the rectangle given the width
Mathematically, the perimeter of the rectangle can be calculated using the formula;
2( l + w)
from the question w = 10
and perimeter = 48
Thus;
2( l + 10) = 48
divide both sides by 2
l + 10 = 48/2
l + 10 = 24
l = 24 - 10
l = 14 cm
choose the best decimal equivalent to 14/25.
Answer:
0.56
Step-by-step explanation:
To find the decimal equivalent, we can divide the numerator and denominator together.
14 ÷ 25 = 0.56
Best of Luck!
Use the information to diswer
The area of the triangle shown is 40.0 cm2.
?
12.5 cm
What is the height of the triangle?
A. 3.20 cm
OB. 6.40 cm
OC. 13.8 cm
OD. 27.5 cm
what is greater, -16 or -3
Answer:
-3
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
-3 is closer to 0 on a number line.