Please do correctly! I will mark you Brainliest!
Answer: What question am I answering
Step-by-step explanation:
Distance: Jack and Jill start from the same point and walk in'opposite directions. Jack
walks 2 kmh faster than Jill. After 3 hours they are 30 kilometers apart. How fast did
each walk?
Answer:
t = 6 km/hour
And, J would be 4 km per hour
Step-by-step explanation:
Let us assume the speed of Tom be T
And, the Speed of Jim be J
Given that
T - J = 2 km /hr ...........(i)
After 3 hours distance between them = 30 km
As they are walking in the opposite direction
Thus,
Net speed =T + J
L ÷ (T+J) = 3
30 ÷ (T+J) = 3
T +J =10 ..............(2)
After solving these two equations
2T = 12
t = 6 km/hour
And, J would be 4 km per hour
the fastest 3 runners in a race qualify for the next event. how many different groups of Runners could advance to the next event from a race that has seven runners
Answer:
35 different groups of 3 runners can be selected
Step-by-step explanation:
Here, we want to simply calculate the number of 3 runners that can advance in a race from a total of 7
What we want to do here is to simply get different groups of 3
So, we have it that we simply want to know the number of different ways we can select 3 from a total of 7
We can simply use combination for this;
We have the general combinatorial as;
nCr = n!/(n-r)!r!
With respect to this particular question, n = 7 and r = 3
So we have;
7C3 = 7!(7-3)!3! = 7!/(4)!3! = 35
An airplane is 16,000 feet above the ground. It begins to descend at a rate of 140 feet per minute. Write an equation you could use to solve for x, the number of minutes it will take until the plane is 12,600 feet above the ground.
Answer:
16000=140x
It will take 90 minutes to hit 12,600 ft above ground.
Step-by-step explanation:
Just swap out 16000 for 12600. Then solve from there.
Hope it helped!
Is 4x - 3x + 2 and x+2 equivalent?
Answer:yes
Step-by-step explanation:4x minus 3x is 1x, or x, and then it's just x+2
Answer:
Yes
Step-by-step explanation:
Both of these equations have the same X and Y intercepts. The X intercepts being -2,0 and the Y intercepts being 0,2
Guys I need help plss
Answer:
square root of 34
Step-by-step explanation:
You're the magnitude or the norm of the vector AB so you will square the X and Y components and then add them and put them in a square root
so
5 squared is 25
(-3) squared is 9
25+9 is 34
so the answer is the square root of 34
What is the surface area of the triangular prism shown?
A.32 square centimeters
B.120 square centimeters
C.184 square centimeters
D.1,560 square centimeters
NO LINKS TO WEBSITES!!!!!!!!
Answer:
C. 184 square centimeters
Step-by-step explanation:
4 x 6 = 24
there are 2 of them so you leave it the same
5 x 10 = 50
there are 2 of them so
50 x 2 = 100
6 x 10 = 60
24 + 100 + 60 = 184
184 square centimeters
What is the approximate circumference of the circle shown below?
A. 82 cm
B. 64 cm
C. 129 cm
D. 137 cm
Answer:
the answer to this is C. 129 cm
what is the slope of 10x-2y=8?
Answer:
Slope: 5
Step-by-step explanation:
Mark as brainllest
Answer:
x= 1 /5 y+ 4 /5
Step-by-step explanation:
Let's solve for x.
10x−2y=8
Step 1: Add 2y to both sides.
10x−2y+2y=8+2y
10x=2y+8
Step 2: Divide both sides by 10.
10x /10 = 2y+8 /10 x= 1 /5 y+ 4 /5
Find the length of the missing side. Round to the nearest tenth if necessary.
32.2m
14.0
44.0
23.0m
Answer:
28 x 16 = 448
x goes first never y
Step-by-step explanation:
select the equation that is equivalent to (x+5)2
Answer:
2x + 10
Step-by-step explanation: 2 * (x + 5) = 2x + 10
Triangles ABC and XYZ are similar figures. If the length of side AC is 15 units, the length of side BC is 27 units, and the length of side XZ is 5 units, what is the length of side YZ?
Answer:
the length of side YZ is 9
Step-by-step explanation:
AC is 15...............XZ is 5 (15/3)
BC is 27..............YZ is 9 (27/3)
Point E is located at coordinates (-7, -5). Point F is located at coordinates (-2, 7). What
is the length of EF?
Answer:
It’s 17 units
Step-by-step explanation:
I just did it
Answer:
17
Step-by-step explanation:
i took it
According to a soccer coach, 75% of soccer players
have had at least one sprained ankle. An athletic
trainer would like to investigate this claim. To do so,
the trainer selects a random sample of 125 college
soccer players from across the country and finds that
99 of them have had at least one sprained ankle. The
=p trainer would like to know if the data provide
convincing evidence that the true proportion of college
soccer players who have had at least one sprained
ankle is greater than 75%.
p=0.80
Answer:
On Edge 2021,,,,this would increase the power of the test
Answer:
p= 0.85
Step-by-step explanation:
Right on edge.
Power increases with null hypothesis.
-8 3/8-10 1/6 PLS HELP!!!!!!!!!!!!!!!!!!!!!
I think it's -18 13/24 ?
Answer:
-18 13/24
Step-by-step explanation:
Looking at the two numbers, we need to find a common denominator. To do that, list the multiplies of both numbers & find the first one that is in common.
8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120
6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120
The first multiple 8 & 6 share is 24, so we'll use that as our denominator
-67/8 - 61/6
-201/24 - 244/24
(-201 - 244)/24
Subtract 244 from -201 to get -445.
-445/24
Convert -445/24 into a mixed number.
-18 13/24 is the answer to -8 3/8 - 10 1/6.
What is the exact volume of the cone?
Answer: 40cm
Step-by-step explanation:
question number.4
help me plss
Answer:
C
Step-by-step explanation:
65%=65/100
=0.65
This is the required answer.
The rectangular prism has a height of 10 inches and a base of 25 square inches. What is the volume of the rectangular prism?
Answer:
250 in^3
Step-by-step explanation:
V=BH
v=10(25)
v=250 in^3
Evaluate the expression (3.2)².
Answer:
36
Step-by-step explanation:
3*2=6
6^2=6*6
=36
10.24 will be the result after Evaluating the expression (3.2)².
What is an expression?In mathematics, an expression is a phrase that has at least two numbers or variables and at least one math operation. Addition, subtraction, multiplication, or division are all examples of math operations.
Given, the expression (3.2)².
For simplification calculate the value of the square of 3.2
Evaluation of the given expression = 3.2²
Evaluation of the given expression = 3.2 * 3.2
Evaluation of the given expression = 10.24
Therefore, After evaluating the expression (3.2)², the result will be 10.24.
Learn more about expression here:
https://brainly.com/question/24242989
#SPJ2
SOMEONE PLEASE HELP MEEE!!!
Answer: 1080
Step-by-step explanation:
Heres why:
SA is L*W*H as the same formula as volume.
Jack paid $4:00 for 6 pounds of apples. What is the ratio of the price of apples to the pounds of apples?
Answer:
you get 1.5 pounds of apples per dollar (1 pound and 8 ounces)
Step-by-step explanation:
6 and 4 will not work so we need to use decimals
since we have a gap of two, we need to be able to use it four times
2=0.5
1.5 x 4 = 6
or we could just divide it... never mind forget it
your answer is 1.5 pounds of apples per dollar
Answer:
The ratio of the price of apples to the pound of apples: 2:3
Step-by-step explanation:
4:6
divide by 2
2:3
work out 4/11 + 2/5, Give your answer in its simplest form
Answer:
42/55
Step-by-step explanation:
4/11+2/5 LCD=55
20/55+22/55
42/55
please answer the following
please explain how you got your answer
Answer:
P(1) = 4/20 or 1/5
P(2) = 3/20
P(3) = 7/20
P(4) = 6/20 or 3/10
Step-by-step explanation:
Crystal spun the spinner 20 times. 1 was the outcome 4 times out of 20 spins, so the experimental probability would be 4/20 or 1/5. Same goes for all the other ones.
A number is selected at random from first 50 natural numbers. Then the probability that it is a multiple of 3 and 4 is
A toy shop orders 11 boxes of marbles Each box contains 6 bags of marbles Each bay contains 45 marbles How many marbles does the shop order in total?
Answer:
2970 marbles
Step-by-step explanation:
First, find how many bags of marbles there were:
11(6)
= 66
Find how many marbles there are
66(45)
= 2970
So, there were 2970 marbles in total
Answer:
Required Answer :-At first the total no. of bags
=> 11 × 6
=> 66
Now
Total marble
=> 45 × 66
=> 2970
[tex] \\ [/tex]
x + 4 =
A 2
B. 10
C. 11
D. 24
Answer:
please the question is not complete oo
cookies cost $2.50, where y represents the total cost of x, number of cookies
a. additive
b. Multiplicative
Answer:
Step-by-step explanation:
If the cookies cost $2.50 each, then the total cost of x cookies is
($2.50/cookie)(x), involving multiplication, not addition.
Answer:
Solution :-According to the question
Equation = y/x
Putting y as $2.50
= (2.50)x
And it's a multiplication
[tex] \\ [/tex]
Parker is going to attend a four-year university that has an annual tuition of $16,110. He has $45,800 in savings and has a grant for $5,000. How much more does he need to pay for the tuition for all four years?
Answer:
$13,640
Step-by-step explanation:
money that need to pay for the tuition for all four years
=$16,110×4
=$64,440
the money he had
=$45,800+$5,000
=$50,800
the difference
=$64,440-$50,800
=$13,640
pleaseeee help any links reported!!!
Answer:
8jsjhshsjoqoqoajsbuwja
Nate is exponentially gaining Twitter followers! His current amount of followers is 146. His followers are increasing at a 24% rate each day. Part 1: Is this a growth or decay problem? ( 1 point) Part 2: Which equation correctly represents this problem (2 points) A) y=146(24)x B) y=146(1.024)x C) y= 146(1.24)x
Answer:
(a) Growth
[tex](b)\ y = 146(1.24)^x[/tex]
Step-by-step explanation:
Given
[tex]a= 146[/tex] -- current
[tex]r = 24\%[/tex] --- rate
Solving (a): Growth or decay
The question says his followers increases each day by 24%.
Increment means growth.
Hence, it is a growth problem
Solving (b): Equation to represent the scenario.
Since the rate represents growth, the equation is:
[tex]y = a(1 + r)^x[/tex]
Substitute: [tex]a= 146[/tex] and [tex]r = 24\%[/tex]
[tex]y = 146 * (1 + 24\%)^x[/tex]
[tex]y = 146 * (1 + 0.24)^x[/tex]
[tex]y = 146 * (1.24)^x[/tex]
[tex]y = 146(1.24)^x[/tex]