A person walks 13 mile in 19 hour.
The person's speed is ____ miles per
Answer:
0.68
Step-by-step explanation:
miles=13
hour=19
Now,
Speed=Velocity/Time Taken
=13/19
=0.6842miles/hour
in a circle of radius 17cm calculate the length of a chord which is 8cm from the centre
Answer:
The length of the chord is 30cm
Step-by-step explanation:
Given
[tex]r = 17cm[/tex]
[tex]d = 8cm[/tex]
Required
Calculate the chord length (L)
This is calculated as:
[tex]L = 2 * \sqrt{(r^2 -d^2)[/tex]
So:
[tex]L = 2 * \sqrt{(17^2 - 8^2)[/tex]
[tex]L = 2 * \sqrt{225[/tex]
[tex]L = 2 * 15[/tex]
[tex]L = 30cm[/tex]
Alex only keeps ten pence coins and some twenty pence coins in
his coin box. He has a total of 18 coins which amounts to £2.30.
Work out the number of ten pence coins and twenty pence coins
in Alex's coin box.
Answer:
In the box. we have 5 20 pence coins and 13 10 pence coins
Step-by-step explanation:
Let the number of 10 pence coins be x and the number of 20 pence coins be y
The sum of these numbers is 18
Thus;
x + y = 18•••••••(i)
Writing the value in pence only
£2.30 * 100 = 230 pence
Now we have that;
total 10 pence coin amount = 10 * x = 10x
Total 20 pence coin amount = 20 * x = 20y
10x + 20y = 230
x + 2y = 23 •••••••(ii)
from ii;
x = 23-2y
Substitute this into i
23-2y + y = 18
23-18 = 2y-y
y = 5
Recall;
x + y = 18
x + 5 = 18
x = 18-5
x = 13
Pls help it’s for math pls pls help
La mamá de Cornelio va a repartir un pastel entre él y sus 5 amigos ¿Qué cantidad de pastel le tocará a cada quién?
Answer:
each will get 1 peace. Cada uno le tocara un pedaso
Step-by-step explanation:
Brody is saving money at the average rate of $275 per week. After 8 weeks he has $3,550 left. How much money did Brody begin with? How long will it take Brody to have $10,7007
Answer:
He started off with $1,275. Brody needs to work another 8 weeks to make that much money.
Step-by-step explanation:
What value of x is the solution to the equation 2x+4=−2
Answer:
I got -3 as the answer .........
how do i solve this question 2+3=8-4 ?
Answer:
5=4
Step-by-step explanation:
. If we subtract 4a–7ab+3b+12 from 12a–9ab+5b–3,then the answer is:
8a-2ab+2b-15 is the answer
Step-by-step explanation:
Answer:
8a-16ab+2b-15, i think
que es un plano cartesiano?
Evaluate: 12 + 4 x (11 - 6) =
Answer:
it equals 32
Step-by-step explanation:
Hope this helps!
Answer:
doesn't really make sense
Step-by-step explanation:
if you were to do this problem according to PEMDAS it would be 12+20x
Find the value of x in the figure below
x =
degrees
x =
degrees
Answer:
x = 190 and x = 126
Step-by-step explanation:
In both diagrams the indicated angles are vertical and congruent, then
[tex]\frac{x}{2}[/tex] = 95 ( multiply both sides by 2 )
x = 190
and
x + 21 = 147 ( subtract 21 from both sides )
x = 126
Look at picture.........
Step-by-step explanation:
jJJshzysyqvsudishw wjs87eye
20 POINTSSS!!
Which of the following sets of Real Numbers are Counting Numbers?
A. { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }
B. { 1, 2, 3, 4 ... }
C. { 0, 1, 2, 3, 4 ...}
D. { ...-2, -1, 0, 1, 2 ... }
Answer:
option D. {......-2, -1, 0, 1, 2 ......}
PLEASE HELP THIS IS BEING TIMED I HAVE 9 moreeeeee
Answer:
8/10 hahahshshshdhdhdbdbd
Answer:
yh its 8/10
Step-by-step explanation:
DO BRAINLIEST FOR ME. IVE BEEN ANSWERING MOST UR QUESTIONS PLLZZ XD
Mi tía quiere decorar con baldosas cuadradas de 25 cm de lado, una pared rectangular del patio que mide 3,5 m de ancho y 5,8 m de largo. ¿Cuántas baldosas necesitará para hacer el decorado?
Answer:don’t understand
Step-by-step explanation:
please help!
what is the slope of the line that has a y - intercept of -1
Answer:
Slope = 2
Step-by-step explanation:
The line with the y-intercept of -1 has a slope of 2. You can find this by using the formula (y1-y2)/(x1/x2), in other words, rise over run.
brian made a tasty burger . the diameter of the buger was 5cm what is the radius of the circle
Answer:
2.5 centimeters
Step-by-step explanation:
The radius is half the diameter of a circle.
The diameter of the burger is 5 cm.
5/2 = 2.5
The radius of the burger should be 2.5 centimeters.
Hope this helps!
Answer:
The marginal utility per dollar spent for the second burger is 4 utils and the utility per dollar spent for the second burger is 4.5 utils.
Step-by-step explanation:
Find the greatest common factor of 15w2 and 25w3.
Answer:
5w^2
Step-by-step explanation:
Answer:
5w^2
Step-by-step explanation:
Simplify the expression. 2(34x ) + 5(92x ) + 81x
Answer:
608x
Step-by-step explanation:
2(34x) + 5(92x) + 81x
68x + 460x + 81x (distributive property)
608x
Find the perimeter of the figure below.
13 ft
12 ft
Figure not drawn to scale
Perimeter______ Ft
Answer:
P=50
Step-by-step explanation:
First use the formula for perimeter which is P = 2l + 2w. Then plug in to find your answer.
STEPS:
P = 2l + 2w
P=2(13)+2(12)
P=26+24
P=50
An architect is making a plan for a new circular playground. If the picture below is the
playground, how much fencing needs to go up to
keep the kids in the circle?
Answer:
201ft
Step-by-step explanation:
The circumference of a circle is equal to
C=piD
d=64ft
substitute:
c=pi(64)=64pift ft
assume pi=3.14
64pi=64*3.14=200.96ft
round to the nearest whole number:
200.96=201ft
another explanation:
Answer:
Length of the fencing required = 201.06 meters
Step-by-step explanation:
Architect is planning a circular playground with diameter = 64 m
We have to calculate the fencing required to cover this playground.
Length of fencing = circumference of the playground
Since circumference of a circle = π × (Diameter)
= 64π
= 201.06 meters
Therefore, length of fencing required to keep the kids in a circle will be 201.06 meters.
200.96 meters of fencing needs to go up to keep the kids in the circle. Therefore, option D is the correct answer.
What is circumference of a circle?The circumference of a circle is the perimeter of the circle. It is the total length of the boundary of the circle. The circumference of a circle is the product of the constant π and the diameter of the circle.
Given that, diameter of a circle is 64 meter.
Here, the radius = 64/2
= 32 meter
We know that, the circumference of a circle can be calculated using 2πr.
Now, circumference = 2×3.14×32
= 200.96 meters
Therefore, option D is the correct answer.
Learn more about the circumference here:
brainly.com/question/28757341.
#SPJ2
PLEASE HURRY!!!
An airplane can seat up to 175 passengers. The airline has already sold 87 tickets for a flight on the airplane. Which graph represents the solution to the inequality that finds the number of tickets the airline can still sell?
Everybody is saying its c but it says its wrong on edge 2021
Answer:
C
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
when a grizzly bear hibernates its heart rate drops to 10 beats per minute, which is 20% of its normal value.
question: what is a grizzly bear's normal heart rate when not hibernating?
__________ beats per minute.
Answer:
10 is 20% of 50.
50 beats per minute
What is the Solution of the equation y=2x+3
Answer:
let X interchange y and vice versa
X= 2x+3
carry across +3
X-3=2X
carry across 2 (2X is 2 multiple by X when carried across the sign change to division)
so X-3 divided by 2 is = X
could be misinterpreting this question so I'm not entirely sure.
What value of x will make the equation below true?
X - 15 = 12
Answer:
27
Step-by-step explanation:
x-15=12
add fifteen to both sides
x-15+15=12+15
x=27
Answer:
27
Step-by-step explanation:
27-15=12
question in the picture
c= 50+75t
it is less expensive to purchase the $750 software
1. Find the volume of each cylinder ( use = 3.14 )
Answer:
1. volume = 1243.44ft^3
2. volume = 54259.2ft^3
plz help, i would really appriciate it :)
Answer: [tex]x^{2} +12x+20[/tex]
Step-by-step explanation:
h(x)= (x+10)(x+2)
^ It is this way because it is so the x value will equal -10 and -2.
Now, we just distribute it. if the question does not have any points it passes through described in the problem, then it is pretty self explanatory.
x^2 + 2x+ 10x+ 20
= [tex]x^{2} +12x+20[/tex]
Answer:
f(x) = A(x - 2)(x - 10),
where A is real and A= 20.
Step-by-step explanation:
if I'm wrong I am so very sorry
These 12 shapes are put into a bag. If you reach
into the bag 60 times, replacing the shape after
each time, predict how many times you would pull
out a circle.
25 times
20 times
30 times
15 times