Madelyn has x nickels and y dimes, having a maximum of 15 coins worth no
less than $1 combined. At least 2 of the coins are nickels and at least 9 of the
coins are dimes. Solve this system of inequalities graphically and determine
one possible solution.
Answers
9514 1404 393
Answer:
2 nickels, 9 dimes
Step-by-step explanation:
When there are a number of overlapping shaded areas on the graph, I find it convenient to use the reverse of the inequalities. That makes the unshaded area the solution space. Here, the vertices of the triangular solution space are ...
(2, 9), (2, 13), (6, 9)
Any of the grid points within (or on) this triangle is a possible solution. One of them is (2, 9) corresponding to 2 nickels and 9 dimes.
__
Three solutions are shown:
(x, y) = (2, 9), (3, 10), (4, 11)
Related Questions
1. Girl Scout Troop 321 started with 25 girls and at the end of the year party there were 31 girls. Gabby
shows her work below to find the percent of change for her troop.
31-25
31
6
31
0.1935
Gabby figures that her troop increased by about 19.4%
Describe and then correct the error Gabby made in finding the percent of change.
Pick what Gabby did wrong.
The real percent of change is:
Answers
Answer: 24%
Step-by-step explanation:
Since we are informed that the Girl Scout Troop started with 25 girls and at the end of the year party there were 31 girls. The percentage change will be:
= (31 - 25) / 25 × 100
= 6/25 × 100
= 24%
The error that Gabby made was that she used 31 as the base. This is expressed below:
= 31 - 25) / 31 × 100
= 6/31 × 100
= 19.4%
7[tex]\frac{2}3} -5[/tex]
Answers
the correct answer would be.. 1 8/15.
PLEASE HELP I'LL GIVE THE BRAINLEST
Select the correct answer. Which line is the line of best fit for this scatter plot?
Answers
Answer:
D
Step-by-step explanation:
Hope it helps but I’m guessing
Ron is making a triangular frame for a garden using three lengths of wood. He has three pieces of wood that measure 3 feet, 8 feet, and 4 feet in length.
Ron claims that he can make a triangular frame with these three pieces of wood. Do you agree with Ron? Explain your reasoning.
Answers
Answer:
Step-by-step explanation:
A side of the triangle must be shorter than the sum of the remaining two sides.
He cannot make a triangle with 3, 4, and 8.
Your friend deposits $8500 in an investment account that earns 2.8% annual interest. What is the balance after 8 years when the interest is compounded quarterly? 1
Answers
I believe the balance would be $10,601.42
Hopefully that is the right answer
Find the exact values of the remaining five trigonometric functions of o satisfying the given conditions.
cos θ=3/5, tan θ < 0
Answers
First, tan(θ) = sin(θ) / cos(θ), so if cos(θ) = 3/5 > 0 and tan(θ) < 0, then it follows that sin(θ) < 0.
Recall the Pythagorean identity:
sin²(θ) + cos²(θ) = 1
Then
sin(θ) = -√(1 - cos²(θ)) = -4/5
and so
tan(θ) = (-4/5) / (3/5) = -4/3
The remaining trig ratios are just reciprocals of the ones found already:
sec(θ) = 1/cos(θ) = 5/3
csc(θ) = 1/sin(θ) = -5/4
cot(θ) = 1/tan(θ) = -3/4
4
Question
YA
xy
GRAPH PLEASE !!! HELP
Answers
2. What is 9 squared.
a. 3
b. 81
C. 18
O d. 11
Answers
Answer:
81
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
9 squared is 81
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Explain the difference between the translation of y=x² for the graphs of y=(x+3)² and y=x²+3.
Answers
Answer:
y=(x+3)^2 has a vertex at (-3,0), while y=x^2 + 3 has a vertex at (0,3)
Mark me brainliest hope this helps
Step-by-step explanation:
4.) Solve the proportion.
2
9
II
3 k + 1
Answers
Answer:
b
Step-by-step explanation:
Sorry if its wrong I hope I helped!!!!
I need a lot of help please answer right !
Answers
Answer:
$16
Step-by-step explanation:
Answer:
Estimate: $16
Exact amount: $15.98
Step-by-step explanation:
To find the estimate amount of money she has left, we will add everything up and subtract it from $45.12.
$7.89 + $21.25 = $29.14
$45.12 - $29.14 = 15.98
Now lets round your answer to $16. Therefore, the estimated amount that she has left is $16. And based on the calculations above, we can see that the exact amount of money she has left is $15.98.
Pls help me with this work
Answers
Answer:
They are similar because they both have like terms in parenthesis.
Step-by-step explanation:
As long as you have like terms, the equation is the same. You never have to worry about the number before the variable being the same. As long as the variable is the same, you have like terms and that is like terms in the equation. TO SUM IT UP: They both have like terms and that is why they are similar.
What is 10x-5y+2x-3y=
Answers
Answer: 12x-8y
Step-by-step explanation:
On Monday you read 3 pages.
Tuesday, 3 times that number on Monday,
Wednesday is 3 times the number on Tuesday.
How many pages do you read on Wednesday? (Hint: 38)
pages
Answers
Answer:
27 pages
Step-by-step explanation:
Since you read 3 pages on Monday and you read 3 times that number on Tuesday, the equation should be 3*3 to equal 9. Then, since you read 9 pages on Tuesday and 3 times that number on Wednesday, the equation should be 9*3 to equal 27 pages. So, on Wednesday, you read 27 pages in total.
Answer:
27 pages
Step-by-step explanation:
Monday=3 pages
Tuesday=3 pages × 3
=9 pages
Wednesday=9 pages × 3
=27 pages
hope it helps!!!
how do I change 2y = 3x + 8 into slope-intercept form?
Answers
Divide both sides of the equation by 2
Remove the parenthesis
Rewrite it as y=3/2x+4
what is the percent / degree of X ?
Answers
Answer: 65
Step-by-step explanation:
All those angles added up have to equal 360 degrees.
The little square on the angle to the left of x means that it's a right angle, or 90 degrees.
360
- 180
= 180 <--- this is the bottom half,
180
- 90 <--- the right angle on the left
= 90
90
-25
= 65 <--- that's x
What is the nth term of the sequence 1,4,9,16
Answers
Answer:
[tex]n^{2}[/tex]
Step-by-step explanation:
1, 4, 9, 16
1=[tex]1^{2}[/tex]
4=[tex]2^{2}[/tex]
9=[tex]3^{2}[/tex]
16=[tex]4^{2}[/tex]
so, the fifth term is [tex]5^{2}[/tex] = 25
Geometry please help-
Find the area of the composite figure.
Answers
Answer:
Hope that answers your question
Brian buys a computer for £900.
It depreciates at a rate of 2% per year.
How much will it be worth in 2 years?
Give your answer to the nearest penny where appropriate.
Answers
Explica con tus palabras el significado de lim f(x)=7
Answers
(
−
∞
,
∞
)
,
{
x
|
x
∈
R
}
(
-
∞
,
∞
)
,
{
x
|
x
∈
ℝ
}
Range:
{
y
|
y
=
7
}
r/19 > -1
please help solve for R
Answers
Answer:
Step-by-step explanation:
[tex]\frac{r}{19}>-1[/tex]
Multiply both sides by 19
[tex]\frac{r}{19}*19>-1*19 \\\\r > -19[/tex]
Please help and explain
Answers
Answer:
$498.75
Step-by-step explanation:
Why it would be $498.75 is 500 - 25 is 475 then if you do 5% of 475 you get 23.75 and you will add that to the 475 and you will get $498.75.
that’s the problem and the answer i just need to know how to show the work. pls help me
Answers
9514 1404 393
Explanation:
The work can be done in your head, so there's really nothing to show.
If you want to go into painful detail, you can do this ...
[tex](2\sqrt{3x})(3\sqrt{6x^2})=(2\sqrt{3x})(3x\sqrt{6})=6x\sqrt{3\cdot6x}\\\\=6x\sqrt{3^2\cdot2x}=6x\cdot3\sqrt{2x}=\boxed{18x\sqrt{2x}}[/tex]
There may be some other intermediate steps you can show, or you can combine steps to the extent you think is appropriate.
The Beta Club is sponsoring a lollipop sale. If their goal is to raise at least $228, how many lollipops must they sell at $1.50
each in order to meet that goal? Solve the inequality.
Answers
Answer:
I believe they would have to sell 152 lollipops
Step-by-step explanation:
due in 5 minutes pls help
Answers
Answer:
70 ft
Step-by-step explanation:
WHO WANTS SOME BONELESS PIZZA ??
PLS HELP ME I BEG I WILL MARK YOU BRAINLIEST
Answers
Answer:
Step-by-step explanation:
Scale factor = 1 : 7
a)Let the length of the house in the scale drawing = x
1:7 :: x : 21
Product of means = Product of extremes
7*x = 1* 21
x = [tex]\frac{1*21}{7}[/tex]
x = 3
Length of the house in the scale drawing = 3 in
b) Height of the real house =y
1 : 7 :: 4 : y
Product of extremes = product of means
1 * y = 7*4
y = 7*4
y = 28
Height of real house = 28 feet
A pyramid and a cone are both 10 centimeters tall and have the same
volume. What statement must be true about the two solids?
A. The vertical cross-sections of the pyramid and cone at the same
width must have the same area,
B. The area of the cross-sections of the pyramid and cone are
multiples of each other,
C. The horizontal cross-sections of the pyramid and cone at the
same height must have the same area
D. The cross-sections of the pyramid and cone are the same shape
Answers
9514 1404 393
Answer:
C. The horizontal cross-sections of the pyramid and cone at the same height must have the same area
Step-by-step explanation:
Cavalieri's principle says that solids with corresponding cross sections of the same area will have the same volume. Statement C is the converse of this principle.
Can u guys help me please
1. What % of 240 is 60?
2. .90 is what percent of 120?
3. 24 is 96% of what number?
Answers
2.) 75%
3.) 25
who is This Help me
Answers
I need to fill in the blank area models and the numbers I'm supposed to use are the factor and expended forms next to them please help
Answers
Answer:
2. x^2 -3x
-x 3
3. x^2 7x
-2x -14
Step-by-step explanation:
Im pretty sure this is right, but I am so sorry if it's not tho