The value of A is RM 205.
Since Billy gave money to a charity over a 20 year period, from Year 1 to Year 20 inclusive, and he gave RM150 in Year 1, RM160 in Year 2, RM170 in year 3, and so on, and Kevin also gave money to the charity over the same 20 years period, but he gave RMA im Year 1 and the amount of money he gave each year increased, forming an arithmetic sequence with common difference RM30, and the total amount of money that Kevin gave over 20 years period was twice the total amount of money that Billy gave, to calculate the value of A the following calculation must be performed:
Billy = (150 x 20) + 10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100 + 110 + 120 + 130 + 140 + 150 + 160 + 170 + 180 + 190 Billy = (150 x 20) + 1900 Billy = 3000 + 1900 Billy = 4900 Kevin = (9800 - (30 + 60 + 90 + 120 + 150 + 180 + 210 + 240 + 270 + 300 + 330 + 360 + 390 + 420 + 450 + 480 + 510 + 540 + 570)) / 20 Kevin = (9800 - 5700) / 20 Kevin = 4100/20 Kevin = 205
Therefore, the value of A is RM 205.
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please help i'll mark brainliest
Answer:
its b
Step-by-step explanation:
Syyshshdhehqvswwpwurxwittau
Step-by-step explanation:
the picture isn't realistic but mathematically it's:
1) = 121°
2) = 59°
Lines A and B are parallel
Answer:55 degrees
Step-by-step explanation:
The sum of 3 times a number and 4 is 2.
I think its 24? or am i just not smart
How many cups are there in 697 pints?
Answer:
1674.12
Step-by-step explanation:
I hope it helps.
how many solutions does the following equation have? 2x+8=2(x+3)
Answer:
0
Step-by-step explanation: 2x+8=2x+6 --> 8=6
8 cant be equal to 6 so this equation is wrong and has no solution.
can anyone heelp me plz plz
Answer:
c
Step-by-step explanation:
i think it's 1
1. what is the difference when (-6) is subtracted from (-3)?
2. If (-12) is one of the factors of -180, what is the other factor?
3. After John spends 1/4 of his salary on food and 2/3 of what remains on clothes, what part of his original salary does be have left?
4. Arrange the following fractions from least to greatest: 1/2, 8/15, 9/19
5. 0.7 deceased by 0.02
Divide. plz help
623÷15
Answer:
41.53333
Step-by-step explanation:
The answer is a decimal, and not a whole number because 623 is not divisable by 15. But if we we're to round 41.53 by the nearest tenth, your new rounded number would be: 42.
Have a great day! :D
ASAP please!! An American roulette wheel contains 38 slots. Eighteen of the slots are colored red and eighteen
are colored black. The remaining two slots are colored green. A ball is spun on the wheel and comes
to rest in one of the 38 slots. If you bet $1 on the color red and win, the house pays you $1 (even
money).
What is the expected value of betting on red?
Answer:
Step-by-step explanation:
First one 1, can’t bet negative amount of money
7/8 divided by -1/6.
Answer:
-42/8
Step-by-step explanation:
Answer: -21/4 or 5 1/4
Step-by-step explanation:
to divide fractions, multiply by the reciprocal of the divisor
7/8*-6/1
then, just multiply the numbers to get -42/8. then, simplify by dividing both the numerator and denominator by 2. this will get -21/4
pls help i am in 8th grade k12 o0A group of workers is harvesting pumpkins at a constant rate. An equation that represents the number of pumpkins the workers picked over a period of time, in hours, is y = 5x + 10.
What are the slope and the y-intercept for the equation that represents the number of pumpkins the workers picked over a period of time?
What are the rate of change and the initial amount? Explain what the rate of change and the initial amount mean for this particular situation.
Use graph paper to draw a graph representing the situation. Label the axes appropriately.
Answer:
1) 5/1 is the slope, and 10 is the y intercept.
2) Inital amount is the y intercept, and 10 is the rate of change.
3) Should be easy from there! Just graph (0,10), and go up 5, right 1, and repeat.
Step-by-step explanation:
This is in slope intercept form! Where 5 is the slope, and 10 is the y intercept. The rate of change is another way of saying slope, and the inital amount is your starting value, or y intercept.
The LCM of 5 and 6 is____.
The LCM of 5 and 6 is 30
Answer:
30
Step-by-step explanation:
for 5: 5,10,15,20,25,30
for 6: 6,12,18,24,30
Suppose you have 5 white, 5 blue and 8 black socks in a drawer. What is the probability that you randomly pick a black sock from the drawer?
A) 1/18
B) 1/5
C) 5/5
D) 8/18
What is the solution for the system of equations 2x+3y=9y=x+8
The solution of the system of equations 2x+3y=9 and y=x+8 is x = -3 and y = 5.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that the two equations are 2x + 3y = 9 and y = x + 8. The value of x and y is calculated as:-
2x + 3y = 9
y = x + 8
Solve the equations as;-
2x + 3y = 9
-2x + 2y = +16
___________
5y = 25
y = 5
y = x + 8
x = 8 - 5
x = 3
Therefore, the solution of the system of equations 2x+3y=9 and y=x+8 is x = -3 and y = 5.
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A family has two cars. The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of 25 miles per gallon of gas. During
one particular week, the two cars went a combined total of 1925 miles, for a total gas consumption of 65 gallons. How many gallons were consumed by each of
the two cars that week?
Let x = gallons consumed by car 1
Let y = gallons consumed by car 2
We set up our equations:
35x+40y = 1850 eq1
x+y = 50 eq2
Substituting eq 2 into eq 1,
35x+40(50-x) = 1850
35x+2000-40x = 1850
-5x+2000 = 1850
-5x = -150
x = 30
Substitute value of x into eq 2.
x+y = 50
30+y = 50
y = 20
Car 1 consumes 30 gallons of gas.
Car 2 consumes 20 gallons of gas.
13.
Write the equation of a line that is perpendicular to the given line and that passes through the given point.
2x + 9y = –30; (–8, 0)
A. y = 2/9x – 8
B. y = 9/2x + 36
C. y = -9/2x + 36
D. y = 2/9x + 36
Answer:
B. y = 9/2x + 36
Step-by-step explanation:
Find the negative reciprocal of the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line perpendicular to 2 x +9 y = − 30 .
y = 9 /2 x + 36 PERPENDICULAR
...................................................................................................................................................
Find the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line parallel to 2 x + 9 y = − 30 .
y =− 2 /9 x − 16 /9 PARALLEL
In LMN, m = 8 cm, n = 2.8 cm and ZL=103°. Find the length of 1, to the nearest
10th of a centimeter.
9514 1404 393
Answer:
9.1 cm
Step-by-step explanation:
The law of cosines can be used to find the missing side.
l² = m² +n² -2mn·cos(L)
l² = 8² +2.8² -2(8)(2.8)cos(103°) ≈ 81.9178
l ≈ √81.9178 ≈ 9.0508
The length of l to the nearest tenth centimeter is 9.1 cm.
Find the inequality represented by the graph in the picture below
Answer:
[tex]y \geq2x - 5[/tex]
Step-by-step explanation:
First off, we can tell that the line has a positive slope because it's going upwards to the right. To find the slope of the line exactly, we will start at the first given point and count the units until we get to the next point.
(Remember that slope is written as rise/run.)
So the slope is 2/1 or just 2.
Next, we can tell that the y-intercept is -5, because that's where the line crosses the y-axis.
Additionally, since the line is solid, the inequality sign will either be the "greater than or equal to" sign, or the "lesser than or equal to" sign. In order to tell which one to use, we will look at the shaded area. Since the shaded area is above the line, y will be "greater than or equal to" the line.
So to put it together: The line written in slope-intercept form, is
[tex]y \geq2x - 5[/tex]
Hope this helps you :)
Function C gives the number of visitors in a museum some number of hours after the door opened at 9:00 AM. The equation C(2.6)=20 means that 10:30 AM, 20 people had entered. True or false?
Answer:
Step-by-step explanation:
1 hr 20 mins
Kiran paid $54 for three tickets to go to a corn maze at the same rate what is the cost of two tickets to the maze
this is just an addition to the great reply above.
[tex]\begin{array}{ccll}\$&tickets\\\cline{1-2}54&3\\x&2\end{array}\implies \cfrac{54}{x}=\cfrac{3}{2}\implies 108=3x\implies \cfrac{108}{3}=x\implies \boxed{36=x}[/tex]
GIVING BRAINLIST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
The third one
Step-by-step explanation:
Drew adds 12 cup of wheat flour and 234 cups of white flour to his muffin batter.
How many cups of flour does Drew add?
Answer:
The answer is 246
Step-by-step explanation:
Just add 234+12
EXAMPLE 8:
Find the measure of the three angles.
Answer:
1. 50
2. 130
3.130
Step-by-step explanation:
50 is a vertical angle to 1. so it has the same value.
a line is 180 so 180-50=130
An Olympic marathon runner can run at a pace of 2 miles in 10.4 minutes. How many minutes will it take him to run the entire marathon of 26.2 miles?
Answer:
the answer is 136.24 minutes
Step-by-step explanation:
i took the test and it was right
Pleaseee help I beg youu I will mark branliest
Answer:
5, 1.4
Step-by-step explanation:
you just take a value of x with its matching value of y and divide it
Please help!! Brainliest to correct
Answer:
Can you be more specific on this question?
Step-by-step explanation:
Plz help I need help
Answer:
a = -10
Step by step:
put it in standard form
you get
a+10=0
a = -10
Answer:
a= -12
Step-by-step explanation:
write your line down your paper on the equal sign
than do SADMAP, (backwards PEMDAS) so in this case subtract -7
do that on both sides
-7 cancels out making it positive 7 + -17
add
you should get -10 than bring down a
and you get
A=-10
how to find the circumference of a circle with a 8.15 radius
Step-by-step explanation:
r = 8.15
[tex]c = 51.21[/tex]
Are the graphs of 2x-4y=-12 and y=2x+1 parallel, perpendicular, or neither?
Answer:
I believe the answer is neither
Step-by-step explanation:
