Answer:
because r=d/2 it will be
22.5/2=r
r=11.25m
c=2×3.14×11.25
c=70.65msquare
c=7065/1oo
Martin has a combination of 33 quarters and dimes worth a total of $6. Which system of linear equations can be used to find the number of quarters, q, and the number of dimes, d, Martin has?
q + d = 6 25q + 10d = 33
q + d = 6 0.25q + 0.1d = 33
q + d = 33 25q + 10d = 6
q + d = 33 0.25q + 0.1d = 6
Answer:
q + d = 33 0.25q + 0.1d = 6 Option D
Step-by-step explanation:
The system of linear equation that can be used to find the number of quarters, q, and the number of dimes, d, Martin has is as follows:
q + d = 33
0.25q + 0.1d = 6
Martin has a combination of 33 quarters and dimes worth a total of $6.
Therefore,
q = number of quarters
d = number of dimes
The linear equation can be represented below:0.1 dollars = 1 dime
0.25 dollars = 1 quarters
Therefore,
0.25q + 0.1d = 6
The quarters and dimes total 33. Therefore,
q + d = 33Therefore, the combined equation will be as follows:
q + d = 33
0.25q + 0.1d = 6
learn more on dimes and quarters here;https://brainly.com/question/3095346?referrer=searchResults
Find the area of the circle to the nearest hundredth.
4 in.
18
area: about in.2
Answer: 50.24
Step-by-step explanation:
The equation to find the area of a circle is pi*r^2. First, r^2 is 4^2 which is 16. Then times pi. Assuming pi in this case is 3.14, 3.14 times 16 is 50.24.
A picture that measures 10 cm long is reduced on a copy machine to 4 cm long. If the width of the original picture is 6 cm, what is the width
of the reduced picture? Set up a proportion to solve this problem?
2.4 cm
Step-by-step explanation:
10/4 = 6/x
x = width of reduced picture
24 = 10x (cross multiplication)
24/10 = x
2.4 = x
The width of the reduced picture is 2.4 cm.
Help! Please it’s due tmr at 7 am sharp!
Answer:
152 miles add
all non-fractions =149 then add all fractions (5 miles) so it adds up to 152
7 points!!!!
a bag holds 4 red, 5 yellow, and 3 purple marbles. what is the probability of choosing a purple marble.
A: 1/6
B: 6/18
C: 3/20
D: 1/19
Answer:
A 1/6
Step-by-step explanation:
i got this because if you add all the marbles it is 12 so the real percentage would be 3/12 but they divided it by 2 to get 1/6
How would - pi be classified?
Answer:
Step-by-step explanation:
D) irrational and real :)
Joke:
what did "pi" say to "i"
"get real dude " :P ( a math joke )
ind the perimeter of the figure. Round your answer to the nearest hundredth
7 in.
8 in.
12 in.
Answer:
52.85
Step-by-step explanation:
perimeter of the rectangle is 40
perimeter of the half circle is 12.85
add those two together and get 52.85
MARK ME BRAINLIEST PLEASE
Solve for x. -- 2x + 6 = 30 - 6x -6 6 -8 8
Answer:
6
Step-by-step explanation:
[tex]-2x+6=30-6x\\\\4x+6=30\\\\4x=24\\\\x=6[/tex]
1. add 6x to both sides
2. subtract 6 from both sides
3. divide both sides by 4
[tex]\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}[/tex]
-2x+6=30-6x-2x+6x=30-6(-2+6)x=244x=24[tex]\sf{x=\dfrac{24}{4} }[/tex] x=6I need help Please and thank you What is the area of the triangle below? 21 yd 14 yd
Answer:
147 square yards
Step-by-step explanation:
Area = 21 x 14 x 1/2
Area = 294 x 1/2
Area = 147 yd ^ 2
Hope that helps! :)
-Aphrodite
Which is the product of product of (-1 2/5) (-2 3/4)? A. -2 3/10 B. 2 3/10 C. 3 17/20 D. -3 17/20 E. 6 9/10
can you understand? let me know in comment
Please help this is urgent I will mark brainliest and 20 points!
Answer:
B= 9.78 or 9.8
Step-by-step explanation:
S is for Squared
Cs= As+Bs
Bs= Cs-As
Bs=14s-10s
Bs=196-100
Bs=96
B is the square root of Bs
square root 96
B=9.78
What is the area of the shaded sector?
Answer:
C
Step-by-step explanation:
The central angle is equal to the arc that subtends it, that is 54°
area of sector = area of circle × fraction of circle
A = πr² × [tex]\frac{54}{360}[/tex]
= π × 10² × [tex]\frac{3}{20}[/tex]
= 100π × [tex]\frac{3}{20}[/tex] ( cancel 20 and 100 )
= 5π × 3
= 15π cm² → C
The spinner below is spun, then a month of the year is randomly selected. Find the probability of P(unshaded, then a month that starts with the letter A)
Answer:
C)150
Step-by-step explanation:
P (blue) fraction = 2/8 decimal=.25 percent=25%
P(purple) fraction=0/8 decimal=0 percent =0%
P(not green) fraction=5/8 decimal=.625 percent= 62.5%
P(not brown) fraction=8/8 decimal=1 percent =100%
2)Refer to the table on air travel selected airports. Suppose a flight that arrived at El Centro is selected at random. What is the probability that the flight did not arrive on time? write your answer as a fraction, decimal and percent.
80% on time so 20% are not on time
20/100 ÷ 20 =1/5
20%, .2, 1/5
3)The spinner has 8 sectors labeled with letters. Each sector of the spinner below is the same size, as shown.
If the arrow is spun 400 times , how many times would it be expected to land on a sector labeled B?
A)50 C)150
B)100 D)250
PLEASE MARK ME AS BRAINLIEST
John and Caleb want to make the high school basketball gym, so they are going to join a gym over the summer. John decided to go to Planet Fitness, which costs $30 to join, and $5 per visit. Caleb decided to go to Club4Fitness, which just charges $8 per visit. After how many visits have John and Caleb spent the same amount of money, and how much money did they spend?
Answer:
10 visits
Step-by-step explanation:
John and Caleb want to make the high school basketball gym, so they are going to join a gym over the summer.
Let the number of visits be represented as: x
For John
John decided to go to Planet Fitness, which costs $30 to join, and $5 per visit.
The equation = $30 + $5 × x
= 30 + 5x
For Caleb
Caleb decided to go to Club4Fitness, which just charges $8 per visit.
The Equation = $8 × x
= 8x
We equate both equations to each other
30 + 5x = 8x
Collect like terms
30 = 8x - 5x
30 = 3x
x = 30/3
x = 10
Therefore, John and Caleb would spent the same amount of money after 10 visits.
BRAINLIEST TO FIRST ANSWER
Use this story to answer all the following questions:
Vanessa's team played 8 games of basketball. During those 8 games her team's score was: 68, 76, 63, 58, 64, 75, 78 and 78.
What is the mean?
2.
What is the median?
3.
What is the range?
4.
What is the mean absolute deviation?
Answer:
The mean is 70, that's all I know. Sorry!
Step-by-step explanation:
Here's how you find the mean:
1. Add together ALL NUMBERS. (which equals 560 in this case.)
2. DIVIDE by the amount of numbers there are. (So 560 ÷ 8 = 70)
3. There's your answer! The mean of these numbers is 70.
I really hope this helps! Have a great day\night!
La diferencia comun es?
1. el numero contante por que se multiplica
2. el numero contante por que se suma o resta
Answer:
2. el numero contante por que se suma o resta
Stop spamming links. Please just let me ask questions and get answers. I can’t find the answers anywhere else and don’t know how to do it. I’m serious. Does anyone know #4 and #5?
Kim is training for a triathlon. She bikes 8 km for every 2 km that she runs.
Kim ran 10 km last week. How far did Kim bike?
Answer:
I Think the answer might be C
Step-by-step explanation:
10-2=8
8+8=16
what is the distance between points v (3,3) and w (-2,-3) round to the nearest tenth if necessary
Answer:
7.81 u
Step-by-step explanation:
Given :-
Two points (3,3) and (-2,-3) is given to us.And we need to find out the distance between the two points . So , here we can use the distance formula to find out the distance. As,
[tex]:\implies[/tex] D = √{(x2-x1)² + (y2-y1)²}
[tex]:\implies[/tex] D =√[ (3+2)² +(-3-3)²]
[tex]:\implies[/tex] D =√[ 5² +6²]
[tex]:\implies[/tex] D =√[ 25 +36]
[tex]:\implies[/tex] D = 61
[tex]:\implies[/tex] D = 7.81
Hence the distance between the two points is 7.81 units .12. Explain how a simulation might be used to produce experimental results.
Answer:
A simulation could help you view the area without disturbing its ecosystem. It would help in making infrences and understanding how to survive if placed in that enviorment. It would help observe animals from afar without disturbing them. It would be a pair of eyes into an ecosystem/location from the saftey of your own lab/home.
what is cos(360°+x) equal to
Answer:
1
Step-by-step explanation:
We know the value of cos 360° is always equal to 1.
Answer:
cos(360 + x) = cos x
Proof:
cosine identity:
cos(x + y) = cosxcosy - sinxsiny
or
cos(360 + x) = cos360cox - sin360sinx
but
cos360 = 1 and sin360 = 0
Therefore,
cos(360 + x) = cos x
76 minutes for 38 songs = ? minutes for 21 songs
Answer:
42 minutes for 21 songs
Step-by-step explanation:
My way to go about solving these is weird, so sorry in advance
76 minutes / 38 songs = 2 minutes per song,
so for 21 songs its 21x2 or 42
42 minutes for 21 songs
-Gage Millar, Algebra 2 tutor
f(x) = 2x^2 - 4x - 5
vertex? (x,y)
number of solutions?
range?
Answer:
F(x) = 2x^2 - 4x - 5
vertex? (1,-7)
range?
{y|y>=-7}
number of solutions?
Sorry I couldn’t find the answer, I hope this will do.
the numbers of students who spend Sundays doing homework, visiting
with friends, and/or working
For a certain population of sea urchins, 16% are longer than 8 inches. A random sample of 75 sea urchins will be selected. What is the standard deviation of the sampling distribution of the sample proportion of sea urchins longer than 8 inches for samples of size 75?
Answer:
0.042
Step-by-step explanation:
Given :
p = 16% = 0.16
q = 1 - p = 1 - 0.16 = 0.84
Sample size, n = 75
The standard deviation of sampling distribution :
√(pq)/n
√(0.16 * 0.84) / 75
√0.1344 / 75
√0.001792
Standard deviation of sampling distribution = 0.0423320
hmmmmmmmmmmmmmmmmmmmm
Answer:
correct
Step-by-step explanation:
don't change anything
classify a triangle whose side lengths are 8, 16, and 18
Answer:
Acute
Step-by-step explanation:
What is the square root of 121?
A)
9
B)
11
C)
18
D)
22.
Answer:
11
Step-by-step explanation: 11 times 11 equals 121
If y equals -3 then 4 + y / 4 y =
Answer:
[tex] y = - 3 \\ \frac{4 + y}{4y} = \frac{4 + ( - 3)}{4( - 3)} = \frac{4 - 3}{ - 12} = \frac{ - 1}{12} [/tex]
Answer:
6.25 or 8 try those
Step-by-step explanation:
You might need: Calculator
At an ice carving competition, each carver starts with a block of ice with the dimensions shown. The block is
wrapped in a special reflective material to keep it from melting before the competition starts.
1.1 m
0.8 m
1.3 m
How much reflective material is needed to cover the block completely, without any overlaps?
Give an exact answer (do not round).
m?
So, what you are supposed to find here is the surface area of this rectangular prism. So the answer is 52 units of the special reflective material is needed.
Since total surface area of a rectangular prism = 2(lb + bh + hl)
Where l = length of the ice block
b = width of the ice block
h = height of the ice block
Now total surface area for the given dimensions = 2(4×2 + 2×3 + 3×4)
= 2(8 + 6 + 12)
Answer:
It's 6.7
Step-by-step explanation:
Got 52 on Khan Academy for you. It's 6.7