Answer:
lucas = 9
rafael = 6
Step-by-step explanation:
two equations can be derived from the question
r + l = 15 equation 1
r = l - 3 equation 2
r = rafael
l = lucas
substitute for r in equation 1
l - 3 + l = 15
combine similar terms
l + l = 15 + 3
2l = 18
l = 9
substitute for l in equation 1
r + 9 = 15
r = 15 - 9
r = 6
help me please thanks
Answer:
C The mean or median
Step-by-step explanation:
Two semicircles are drawn inside of a circle with radius 8 inches as shown below. Find the area of the shaded region. Round your answer to the nearest tenth (0.1).
Answer:
Step-by-step explanation:
two semicircles each of diameter 8 inches makes one circle with diameter=8 in.
radius r=8/2=4 in.
area of shaded region= πr^2=π×4²=16 π in²
≈16×3.14
≈50.24
≈50.2 in²
What is the compound probability that student A chooses yellow and student B chooses yellow from their mnms at the same time? How likely is this? Yellow is worth 7/30
Step-by-step explanation:
yea................................
Which of the following shows 3x + 15 + 6x – 7 + y in simplest terms?
it should be
9x+1y+8
^it could be just y instead of 1y
Answer:
the answer is = 9x+y+8
Step-by-step explanation:
...
If f(1) = 1 and f(n + 1) = 5f(n) + 3 then find the value of f(4).
Answer:
218
Step-by-step explanation:
Because we need f(n) to calculate f(n+1), we have to calculate our values one step at a time. Starting with f(1) = 1,
f(2) = 5(f(1)) + 3 = 5(1) + 3 = 5+3 = 8
f(3) = 5(8) + 3 = 40 + 3 = 43
f(4) = 5(43) + 3 = 215 + 3 = 218
6.) You are standing 50 meters from a hot air balloon that is
preparing to take off. The angle of elevation to the top of the
balloon is 28'. Find the height of the balloon.
Answer:
26.6 meters
Step-by-step explanation:
tan = opp/adj
tan28 = opp/50
50 * tan28 = opp
26.59 = opp
An amusement park is holding a contest for people who are in line before 7:00 a.m. The 42nd person i. line wins free admission , and so do the six people before that person . which graph could be used to determine the winners?
Answer: bottom left
Step-by-step explanation:
What is the common ratio for the sequence 1, 4, 16, 64,...?
1/4
1/2
2
4
Answer:
4
Step-by-step explanation:
each term is 4 times the previous term
the common ration is 4
Answer:
r = 4
Step-by-step explanation:
The common ratio r of the geometric sequence is calculated as
r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{4}{1}[/tex] = 4
A plant costs p dollars and a bush costs b dollars. Ana buys 2 plants and 4 bushes for $42. Paola buys 7 plants and 9 bushes for $107. Write down a pair of simultaneous equations and solve them to find out the value of p and the value of b.
Answer:
p = 5 and b = 8
Step-by-step explanation:
First, create a system of equations:
2p + 4b = 42
7p + 9b = 107
Solve by elimination by multiplying the top equation by -7 and the bottom equation by 2:
-14p - 28b = -294
14p + 18b = 214
Add these together, and solve for b:
-10b = -80
b = 8
Plug in 8 as b into one of the equations, and solve for p:
2p + 4b = 42
2p + 4(8) = 42
2p + 32 = 42
2p = 10
p = 5
So, p = 5 and b = 8
Answer:
p = 5 and b =8
Step-by-step explanation:
2p + 4b = 42
2p = 42 - 4b
p = 21 - 2b
7p + 9b = 107
7 (21 - 2b) + 9b = 107
147 - 14b + 9b = 107
147 - 5b = 107
-5b = -40
b = 8
2p + 4 * 8 = 42
2p + 32 = 42
2p = 10
p = 5
Help plz..And No links!! I repeat No links!!
I believe the answer to this is:
8:35
Hope this helps! :D
What will be the volume of the box?
Answer:
Step-by-step explanation:
7 * 7 * 3
= 147 cm^3.
13. If you have ₹ (100 3 ‒ 5x + 3) in your wallet, you got a gift of ₹ (10 3 + 3x) and you spent ₹ (80 3 ‒ 2 2 +9) in buying food, how much money is left in your pocket?
Answer:
10x³+2x²-8x-6
Step-by-step explanation:
Total amount = ₹ (100x³ ‒ 5x + 3)
Amont spent in gift = ₹ (10x³ + 3x)
Amount spent in buying food = ₹ (80x³ ‒ 2x² +9)
Left amount = Total amount - (Amount spent in gift+Amount spent in buying food)
= (100x³ ‒ 5x + 3)- [(10x³ + 3x)+(80x³ ‒ 2x² +9)]
= (100x³ ‒ 5x + 3)-(10x³ +3x+80x³ ‒ 2x² +9)
= 100x³ ‒ 5x + 3-10x³-3x-80x³ +2x²-9
= 10x³+2x²-8x-6
Hence, this is the required solution.
In the figure, the area of the shaded region is 224π cm^2.
What is the value of x?
Answer:
6330,24
Step-by-step explanation:
Answer:
x = 10
Step-by-step explanation:
x is the radius of the inner white circle
The area of the whole circle is
A = πr² = π × 18² = 324π cm²
The area of the shaded region = 224π cm²
Then the area of the white circle = 324π - 224π = 100π
Area of white circle = πx² = 100π ( divide both sides by π )
x² = 100 ( take the square root of both sides )
x = [tex]\sqrt{100}[/tex] = 10
. The time of a clock as seen in a mirror is 3:15. The correct time is
Answer:
3:15 cause a mirror cant change time
Step-by-step explanation:
go in ur mirror and look at the time did it somehow get darker or lighter???
Answer:
8:45 i think
Step-by-step explanation:
A set of parents started a savings account for their newborn child. After 7 years, the
child's account had 900 dollars. The balance in the account continues to grow by a
factor of 5 in value every 7 years. Let n be the number of 7-year periods since the
account was started.
Which function, f(n), represents the value of the savings account?
Answer:
hsshshshwwbwbbs29oooo
A rectangular one story house covers an area of 2,700 square feet. The ceilings are 9 feet high. What is the volume of the interior of the house
Answer:
You will need to study and get the answer using
Step-by-step explanation:
a link: https://brainly.com/question/16261743. Taking a rescoruce. i surely think that you can do it
What’s the property of 41 + 29=41 +(9+20)=(41+9)+20=70
Answer:
Step-by-step explanation:
Distributive
Step-by-step explanation:
41+29=70
41 +(9+20)=70
(41+9)+20=70
hope it help
A family of 5 bought airline tickets. In addition to their ticket,each person had to pay $39 to check their bag. They spent a total of $1640.
Find the price of each airline ticket
Answer:
289
Step-by-step explanation:
5 people pay 39 each for their bag, so, 5*39 is 195
now you have to subtract the cost of the baggage(195) from 1640 to be able to get the total cost of tickets- 1640-195 is 1445
the last thing you do is divide the total cost of tickets by the number of people- 1445/5 is 289
Kelvin made 12 blueberry muffins for the bake sale he puts 6 muffins in the box how boxes does kelvin math
Answer:
2 your welcome and I play overwatch
find out the area and perimeter of circle of radius 7cm
Answer:
Step-by-step explanation:
radius, r = 7 cm
[tex]Area = \pi r^2 = \pi \times 7^2 = 49 \pi = 153.94 \ cm^2\\\\Perimeter = 2 \pi r = 2 \pi \times 7 = 43.98 \ cm[/tex]
Duncan is putting icing on the top of a rectangular cake if the top of the cake is 6 inches wide by 10 inches long what is the area of the top of the cake
A. 80 square inches
B.60 square inches
C.30 square inches
D. 120 square inches
Duncan is putting icing on the top of a rectangular cake if the top of the cake is 6 inches wide by 10 inches long what is the area of the top of the cake
A. 80 square inches
B.60 square inches
C.30 square inches
D. 120 square inches
Answer:
B- 60 square inches
m (slope) =
b ( y - intercept) =
x - intercept =
Answer:
Step-by-step explanation:
Answer:
Hello! The slope is 1/2, the B value is 2, and the x- intercept would be -6!
Step-by-step explanation:
Well, the B intercept in the start point, as we can see, this linear equation starts at 2! Also, it is the y-intercept, therefore it intercepts the y-line at 2 if you look closely. For the slope, we can figure this out by picking any two clear points on the graph that the line goes through that is EXACT, (has to be directly on a point that is a whole number), and we do rise over run to calculate the slope! If you are having trouble with that, I suggest watching videos on Khan Academy's website about linear equations/linear graphs! Again, with rise over run, we can figure out the x intercept once it passes over the x intercept! I'm not an expert but I have been in algebra!
The points (6, 9) and (8, 11) fall on a particular line. What is its equation in slope-intercept form?
Answer: y = 1x + 3
Step-by-step explanation:
If you plot it, you see the slope is 1/1, and the y-intercept is at (0, 3).
What is the range of the function y= squareroot of x+5?
Answer:
y ≥ 0
Step-by-step explanation:
if you put a negative in place of 'x' you would get a negative root which is an imaginary number
Can someone help me out with these few problems 1,3,4,6,7,10,12,15
Please only reply back if you really are trying to help me please no spam
I would really appreciate it
Answer:
Step-by-step explanation:
1) the complete squares of the picture are 12, if we unite the other we can reach 15 squares circa
15 * 50 = 750 square units
3) Area = base x height = 12 * 9 = 108 cm^2
4) Area = (base x height)/2 = (24 * 16)/2 = 192 in^2
6) Area of the square = side ^ 2 = 12^2 = 144 cm^2
height of the triangle = 20 - 12 = 8 cm
Area of the triangle = (base x height)/2 = (12 * 8)/2 = 48 cm^2
Total area = 144 + 48 = 192 cm^2
7) radius = diameter / 2 = 20 : 2 = 10 cm
circumference = radius * 2 * pi = 20 * pi = 62.8 cm
area = radius^2 * pi = 100 * pi = 314.2 cm^2
10) √25 = 5
we have to find a positive number that multiply by itself gives 25
12) √100 = 10
we have to find a positive number that multiply by itself gives 100
15) √64 = 8
we have to find a positive number that multiply by itself gives 64
a, I see, you split the workload :D
this answer is just a greeting,making you able to choose a brainliest.
if someone leaves a greeting in the other topic, it works there to. :D
c) What is the value of xº?
Answer:
1 is the value of x⁰ so this is the correct answer
Answer:
1
Step-by-step explanation:
Any number or variable with the power 0 has value 1.
Please please help me
Answer:
B) 27.2 m^2
Step-by-step explanation:
because to get the area of the parrelelogram, you use the formula (b)(h) or 6.8*4 to get 27.2.
hii guys I'm sorry I am close to failin, and I sorry tay I'm asking a lot for questions :c
Answer:
A≈87.96
Step-by-step explanation:
A=2πrh+2πr2
= 2pi(2)(5) + 2pi(2)2
Answer:
Hello! answer: 87.92
Step-by-step explanation:
Im a little rusty on these but the answer I believe would be 87.92
2 × 2 × 3.14 = 12.56
2 × 2 × 3.14 = 12.56
4 × 3.14 = 12.56 12.56 × 5 = 62.8
12.56 + 12.56 + 62.8 = 87.92
Hope that helps!
Work out the answers to:
a) 5 divided 0.1
b) 8 divided 0.02
c) 2.4 divided 0.3
d) 32 divided 0.16
Answer:
a) 50
b) 400
c) 8
d) 200
Step-by-step explanation:
a) 5 divided 0.1
[tex]\frac{5}{0.1} = \frac{5 \times 10}{0.1 \times 10} = \frac{50}{1} = 50[/tex]
b) 8 divided 0.02
[tex]\frac{8}{0.02} = \frac{8 \times 100}{0.02 \times 100} = \frac{800}{2} = 400[/tex]
c) 2.4 divided 0.3
[tex]\frac{2.4}{0.3} = \frac{2.4 \times 10}{0.3 \times 10} = \frac{24}{3} = 8[/tex]
d) 32 divided 0.16
[tex]\frac{32}{0.16} = \frac{32 \times 100}{0.16 \times 100} = \frac{32 \times 100}{16} = 200[/tex]
The lengths of two pieces of fabric are in the ratio 7:5. If the first length is 210 meters, what is the second length? *
Answer:
150 meters
Step-by-step explanation:
[tex]\frac{7}{5} =\frac{210}{x\\}[/tex]
cross multiply:
7x = 1050
solve for x by dividing both sides by 7:
x = 150
the second length is 150 meters
Answer:
150 meters
Step-by-step explanation:
To get from 7 to 210 it was multiplied by 30 (we know this because 210 divided by 7 is 30) so that means to get from 5 to the missing length of the second rope, you multiply by 30. 5 times 30 is 150, so the second rope is 150 meters long.
:) ur welcome