Answer:
y = 3x + 50
x = # of levels completed
Step-by-step explanation:
Answer:
The inequality 50 + 3x > 80 can be used by Mario to find how many more puzzles he must solve to advance to the intermediate level.
Step-by-step explanation:
Given that:
Points of Mario in online puzzle game = 50 points
Points earned for each puzzle solved correctly = 3 points
Points needed to advance to intermediate level = over 80 points
Let,
x be the number of puzzles needed to be solved by Mario to advance to next level.
Points Mario already have + Points for each puzzle * Number of puzzles > Points needed to advance
50 + 3x > 80
Hence,
The inequality 50 + 3x > 80 can be used by Mario to find how many more puzzles he must solve to advance to the intermediate level.
1. Separate the number 58 into three parts so
that the second number is 2 less than the
first number which is one half the third
number.
Answer:
2nd number = 13
First number = 15
3rd number = 30
Step-by-step explanation:
Let
2nd number = 1/2x - 2
First number = 1/2x
3rd number = x
Total = 58
x + 1/2x + 1/2x - 2 = 58
x + x+x/2 = 58 + 2
x + 2/2x = 60
x + x = 60
2x = 60
x = 60/2
= 30
x = 30
2nd number = 1/2x - 2
= 1/2*30 - 2
= 15 - 2
= 13
First number = 1/2x
= 1/2*30
= 15
3rd number = x
= 30
Select all systems of equations that have no solutions.
A. y=5-3x
y=-3x+4
B. Y=4x-1
4y=16x-4
C.5x-2y=3
10x-4y=6
D.3x+7y=42
6x+14y=50
E. Y=5+2x
Y=5x*2
The system of equation which have no solution are A, B and D.
What is a slope ?Slope defines rate of change or we can also say it is rise over run.
According to the given question we have to determine given system of equations which have no solution.
We know when two lines are parallel to each other they have no solution cause they have no common intersection points and we also know parallel lines have same slope with different y intercept.
Let us write all the system of equations in slope intercept form which is
y = mx + b.
A.
y = -3x + 5.
y = -3x + 4.
This system of equation has no solution cause have have same slope and different y intercept hence parallel to each other.
B.
y = 4x - 1.
4y = 16x - 1
y = 4x - 1/4.
Same slope different y intercept so no solution.
C.
-2y = -5x + 3.
y = (5/2)x - 3/2.
-4y = -10x + 6.
y = (5/2)x - 3/2.
Same slope same y intercept so they are on top of another so infinite no. of solutions.
D.
3x + 7y = 42
7y = - 3x + 42.
y = (-3/7)x + 6.
14y = -6x + 50.
y = (-3/7)x + 25/7.
Same slope different y intercept so they are parallel to each other.
E.
y =2x + 5.
y = 5x².
Different slope and y intercept so they are not parallel.
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A small town has two local high schools. High School A currently has 600 students
and is projected to grow by 65 students each year. High School B currently has 950
students and is projected to grow by 30 students each year. Let A represent the
number of students in High School A in t years, and let B represent the number of
students in High School B after t years. Write an equation for each situation, in terms
of t, and determine after how many years, t, the number of students in both high
schools would be the same.
Answer:
The senior class will have 100 members in the 13th year.
Step-by-step explanation:
Use the compound interest equation with a negative interest rate:
A = P(1 + r/n)^(n)(t)
Let n be 1 since we're looking for a specific year.
100 = 250(1 - 0.07)^t
100/250 = (0.93)^t
0.4 = (0.93)^t
t = 13 years
Who knows how to do this I TRULY NEED HELP
Answer: The answer is #3
Step-by-step explanation:
-4 + x _< 9 simplify
Answer: x = 13
Step-by-step explanation:
Answer:
1 Let x=10x=10.
10-9=110−9=1
2 Simplify 10-910−9 to 11.
1=11=1
PLZZZZZZ HELP ME IM GIVING BRAINLIEST!!!!!!!!!! (4/5 = -9)
A. 5
B. 9
C. -45
D. 45
0.2% of 16
Pls show work.
Answer:
0.512
Step-by-step explanation:
0.2%x16=0.032
0.032x16= 0.512
40 pts help Each month, Jason wants to save money for a mini IPAD. The mini IPAD cost $800. Jason has $120 and can save $40 a month. The function f(x) = 40x + 120 can be used to represent the number of months and f(x) represents amount of money saved.
Part 1: f(9) = 480 - What does this represent in context?
Part 2: How much money will Jason have saved after 3 months? Use function notation to show your thinking.
Part 3: How much more will he still need to save in order to buy the iPAD mini?
Answer:
17 months for the mini ipad and 120 after 3 months
Step-by-step explanation:
Match each system of equations with its number of solutions
-8x +7y=-2
8x-7y=2
8x +7y=30
8x-7y=2
8x-7y=2
-8x+7y=2
No solution
Infinitely many solutions
1 solution
Answer:
8x + 7y = 30 ( one solution)
8x - 7y = 2
-8x + 7y = -2 ( infinitely many solutions )
8x - 7y = 2
8x - 7y = 2
-8x + 7y = 2 ( zero solutions )
Answer:
Answer:
8x + 7y = 30 ( one solution)
8x - 7y = 2
-8x + 7y = -2 ( infinitely many solutions )
8x - 7y = 2
8x - 7y = 2
-8x + 7y = 2 ( zero solutions )
Step-by-step explanation:
find the slope of the line that is perpendicular to Y = -4/5x -16
Answer:
5/4x-16
Step-by-step explanation:
i don't know if this is right I learned this a few months ago so sorry if not correct
2,610 rounded to the nearest ten
Answer:
2,610 rounded is still 2,610
Describe what a frequency table is what is used for
Answer:
A frequency table shows the distribution of observations based on the options in a variable. Frequency tables are helpful to understand which options occur more or less often in the dataset. This is helpful for getting a better understanding of each variable and deciding if variables need to be recoded or not.
Step-by-step explanation:
hope this helps! :)
The usage of frequency table is to create graphs such as histograms, bar charts, and pie charts to visualize the data.
We are given that;
The frequency table
Now,
A frequency table is a table that lists items and shows the number of times the items occur. It is a way of organizing data and summarizing how often each value or category appears in a dataset.
Frequency tables can be used for any type of variable, such as categorical, ordinal, or numerical.
Frequency tables can help us to understand the distribution of data, identify patterns, and compare different groups.
For example, suppose we have a dataset of 20 students' favorite colors. We can make a frequency table to show how many students prefer each color:
| Color | Frequency |
| ----- | --------- |
| Red | 5 |
| Blue | 7 |
| Green | 4 |
| Yellow| 2 |
| Pink | 2 |
Therefore, by the table answer will be to create graphs such as histograms, bar charts, and pie charts to visualize the data.
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Select all the expressions that have a value of 40 when x = 10.8.
4,320 ÷ x
Answer: Option C.
Step-by-step explanation:
x = 10.8
A. = 4,320 ÷ x
= 4,320/10.8
= 400
Option A is incorrect.
B. = 288/x + 16
= 288/10.8 + 16
= 42.7
Option B is incorrect
C. = (x² ÷ 18) + 33.52
= (10.8² ÷ 18) + 33.52
= 40
Option C is correct
D. = (1,752 ÷ x) – 162/29
= (1,752 ÷ 10.8) – 162/29
= 156.6
Option D is incorrect
E. = x/12 + 36
= 10.8/12 + 36
= 36.9
Option E is incorrect
Answer:
x = 10.8
432 ÷ x = 40
(216 ÷ x) + 20 = 40
(108 ÷ x) + 30 = 40
(54 ÷ x) + 35 = 40
Step-by-step explanation:
can I have the answer (15 points)
4. At the local pet store, zebra fish cost $2.10 each and neon tetras cost $1.85 each. If Marsha bought
13 fish for a total cost of $25.80, not including tax, how many of each type of fish did she buy?
a) Write systems of equations to describe the situation,
B) solve the system
c) How many of each of fish did she buy
Please explain!!
Solve for x and find the missing angles
C
B
(8x - 1)º
)
((4x + 7°
A
Answer:
x=7
Step-by-step explanation:
A^+B^+C^=180° (sum of int. angles on triangle)
4x+7+8x-1+90=180
12x=180-96
12x/12=84/12
x=7
Which pair of rectangles are similar
Answer:
Its 2nd one
Step-by-step explanation:
189÷90=2.1
81÷90=0.9
8.3x2 +0.9xy + 3.6
7.4x2 - 1.7xy + 6.4
Answer:
20.2 + 0.9xy
&
20.2-1.7xy
Step-by-step explanation:
Answer thanks a lot, I’m confused on what to put.
Step-by-step explanation:
2 < (-2x + 4) and (-2x + 4) > -14
=> -2x + 4 > 2
=> -2x > -2
=> x < 1.
Can anyone help me with this Midterm Advanced Algebra problem (DONT ANSWER IF YOUR NOT SURE)
Find the percent decrease. Round to the nearest percent.
From 153 pounds to 145 pounds
I believe the answer is a 5.22876% decrease
≈ 5%
Step-by-step explanation:
Hope this helps!
PLZ help geometry proof. Will give Brainlyiest I’ve posted question 3 times so you can get triple the points
Answer:
The two column proof can be presented as follows;
Statement [tex]{}[/tex] Reason
1. p║q [tex]{}[/tex] Given
∠1 ≅ ∠11
2. ∠1 ≅ ∠9 [tex]{}[/tex] Corresponding angles on parallel lines
3. ∠9 ≅ ∠11 [tex]{}[/tex] Transitive property of equality
4. a║b [tex]{}[/tex] Corresponding angles on parallel lines are congruent
Step-by-step explanation:
The statements in the two column proof can be explained as follows;
Statement [tex]{}[/tex] Explanation
1. p║q [tex]{}[/tex] Given
∠1 ≅ ∠11
2. ∠1 ≅ ∠9 [tex]{}[/tex] Corresponding angles on parallel lines crossed by a common transversal are congruent
3. ∠9 ≅ ∠11 [tex]{}[/tex] Transitive property of equality
Given that ∠1 ≅ ∠11 and we have that ∠1 ≅ ∠9, then we can transit the terms between the two expressions to get, ∠9 ≅ ∠11 which is the same as ∠11 ≅ ∠9
4. a║b [tex]{}[/tex] Corresponding angles on parallel lines are congruent
Whereby we now have ∠9 which is formed by line a and the transversal line q, is congruent to ∠11 which is formed by line b and the common transversal line q, and both ∠9 and ∠11 occupy corresponding locations on lines a and b respectively which are crossed by the transversal, line q, then lines a and b are parallel to each other or a║b.
Solve the system of equations using substitution. Show all work.
y = 7x - 24
y = -3x + 16
What is the least common multiple of 24 and 9 *
3
1
72
216
Answer:
The least common multiple of 24 and 9 is 72.Step-by-step explanation:
I hope l helped you ❤❤The graph shows the relationship between time, in hours, and the population, in thousands of a culture of bacteria. y 45 40 35 30 Population 25 20 15 10 5 0 1 2 3 4 5 6 7 8 9* Time (hours) Which statement describes the meaning of the point (0,10) on the graph? O A. After 10 hours, there are 10,000 bacteria. B. After 10 hours, there are no more bacteria. C. The population began with 10,000 bacteria. D. The population is multiplying itself by 10 each hour.
Answer:
The answer is c.) The population began with 10,000 bacteria!!!
Step-by-step explanation:
Becouse if you find the equation with( -5) you will match it up to (25) and there for the answer c.) is correct!!!
Ricky bought an apple and a bottle of
juice for $3. Noel bought 3 apples and a
bottle of juice for $7. How much is a bottle of juice?
Answer:
The juice is 1 dollar
2+1= 3
2+2+2+1=7
hoped this helped
Answer:
The juice is worth $2.50
Step-by-step explanation:
7$- 3$ = 4$
1.50 *3 = 4.50
4.5 + 2.50 = 7
The apples are worth a $1.50
I hope this helps you!
i need the length of c in the triangle shown. plz i need help badly.
Answer:
c=10
Step-by-step explanation:
6^2+8^2=c^2
36+64=c^2
100=c^2
10=c
HELP!!
Mr. Wood bought BART tickets for his class field trip. If 40 tickets costed 60 dollars, how much did 15 tickets cost? *
Answer:
22.5
Step-by-step explanation:
Each ticket costs 1
Answer:
$22.50 for 15 tickets
Step-by-step explanation:
$60 divided by 40 = $1.50 per ticket
$1.50 x 15= $22.50
PLEASE HELP GIVING BRAINLEST it’s due in a few minutes please help!!
-34, -64,-94,-124, find the 7th and 8th number in the sequence.
Answer:
what ever the 5th number was -30
Step-by-step explanation:
its subtracting 30 each step
Write an expression for the length of the third side of an isocoles triangle
Answer:
[tex]y = 180 - 2x[/tex]
Step-by-step explanation:
Required
Triangle: Isosceles
Required
An expression for the third side
Let the equal sides be x and the third side be y
From triangle sum theorem, we have the following expression:
[tex]x + x + y = 180[/tex]
[tex]2x + y = 180[/tex]
Subtract 2x from both sides
[tex]-2x +2x + y = 180 - 2x[/tex]
[tex]y = 180 - 2x[/tex]
Hence, the third side of an isosceles triangle is: [tex]y = 180 - 2x[/tex]
