Answer: 21
Step-by-step explanation: 5 7
10 14
15 21
Your friend will take 21 minutes to complete the 15 laps.
What is a mathematical equation and expression?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Given is that you complete 5 laps in 7 minutes.
Since you and your friend skate at the same rate, your friend will take the same time to complete 15 laps as you will take. Now -
To complete 5 laps it takes 7 minutes.
To complete 1 lap it will take (7/5) minutes.
So, to complete 15 laps it will take (7/5) x 15 or 21 minutes
Therefore, your friend will take 21 minutes to complete the 15 laps.
To solve more questions on functions, expressions and polynomials, visit the link below -
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i really need help plz help meeeeeeeeee
Answer:
10√2
Step-by-step explanation:
√200=√2*100=10√2
Ans.is 10√2
the topic is Surds in math
please help me! this is important.
!!!Factor each completely, please
do as many as you can please
1) x²+15x+56
2) 12x²-44x+77
3) 6x+21
4) 18x³-2x+27x-3
5) 32x³-4
6) 8x²+10x-25
7) x²+5x-36
8) 2x²+20x+48
1. (x + 7) (x + 8)
2. - (20x - 77)
3. 3 (2x +7)
4. 79x - 3
5. 4 (24x -1)
6. (4x - 5) (2x + 5)
7. (x-4) (x + 9)
8. 2 (x + 4) (x + 6)
Need help please i dont get it
Answer:
>
Step-by-step explanation:
-27/80 > -73/80
If you make a number line they are both in the negatives. If they are both in the negatives then whatever one is closer to 0 is greater.
Answer:
>
Step-by-step explanation:
even tho 73 looks like a higher number when u add the negatives to the front whatever number looks like it is smaller is the higher number.
Augustsky18; you there?????
I lost my other account.
NO ONE ELSE ANSWER THIS
Hey what happened? I was worried about you.
what is the answer to 6x+18+8x=180?
Answer:
=81/7
Step-by-step explanation:
Simplifying
6X + 18 + 8x + -2 = 180
Reorder the terms:
18 + -2 + 6X + 8x = 180
Combine like terms: 18 + -2 = 16
16 + 6X + 8x = 180
Solving
16 + 6X + 8x = 180
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-16' to each side of the equation.
16 + 6X + -16 + 8x = 180 + -16
Reorder the terms:
16 + -16 + 6X + 8x = 180 + -16
Combine like terms: 16 + -16 = 0
0 + 6X + 8x = 180 + -16
6X + 8x = 180 + -16
Combine like terms: 180 + -16 = 164
6X + 8x = 164
Add '-8x' to each side of the equation.
6X + 8x + -8x = 164 + -8x
Combine like terms: 8x + -8x = 0
6X + 0 = 164 + -8x
6X = 164 + -8x
Divide each side by '6'.
X = 27.33333333 + -1.333333333x
Simplifying
X = 27.33333333 + -1.333333333x
The table and graph show the miles driven and gas used for two scooters
How many miles does scooter A get for one gallon of gas
Answer:
Scooter A gets 75 miles/gallon.
Step-by-step explanation:
150 / 2 = 75 miles/gallon
8+x=x
what is x? i need help please. will mark brainliest!
Answer:
It has no solutions
Step-by-step explanation:
Rearrange the terms
[tex]8+x=x\\x + 8 =x[/tex]
Subtract 8 from both sides
[tex]x + 8 - 8=x-8[/tex]
Simplify
[tex]x = x-8[/tex]
Subtract x from both sides
[tex]x - x = x - 8 - x[/tex]
Simplify
[tex]0 = -8[/tex]
The input is a contradiction: it has no solutions
PLEASE PLEASE HELP I WILL GIVE EXTRA POINTS AND BRAINALIST FIRST PERSON TO ANSWER
Answer:
A.
Step-by-step explanation:
It shows the slope, since it's weight it's continuous.
chang is on his way home in his car. he has been driving 12 miles so far, which two-thirds of the way home. what is the total length of his drive?
18 miles bc:
12÷2= 6
6•3=18
Really need help emergency thanks if you help
Answer:D because you divide it bu a common factor
Step-by-step explanation:
The school that Ted goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 7 adult tickets and 8 child tickets for a total of $168. The school took in $294 on the second day by selling 14 adult tickets and 13 child tickets. Find the price of an adult ticket AND the price of a child ticket.
Answer:
Adult= $24
child= $21
Step-by-step explanation:
first let's create an equation for each one.
Day 1: 7x+8y=168
day 2: 14x+13y=294
By doing so we can either graph and get the points for x,y or we can substitute each (x=0) (y=0) and solve manually.
x-int.= (24,0)
y-int.=(0,21)
The radius of circle A is half of the radius of circle B. What is the area of circle A
A) 1/2 the area of circle B
B) 1/4 the area of circle of B
C) pi/4 the area of circle of B
D)pi/2 the area of circle B
E) square root of 1/pi the area of circle B
Work out the mean for the data set below:
9.7 ,4.5,1.9,8,6.6
HELP ME
Answer:
6.14
Step-by-step explanation:
Find the slope? Work on how you got answer please
7. You toss two dimes 24 times and record the results. The table shows the frequency and the experimental probability of each outcome. Suppose you tossed the dimes 120 times. How many times would you expect an outcome of "tail and tail?" *
help please
Answer:
i need this answer
Step-by-step explanation:
Damon is buying meat by the pound at the deli. For every 5 pounds of meat he buys, he pays $8. What is the cost, per pound, for the meat?
Answer:
$1.60 per pound
Step-by-step explanation:
What is equivalent to
4x+18xx-3-4x
Answer:
18x-3
Step-by-step explanation:
if the question is 4x+18x-3-4x,first callect like terms 4x+18x-4X-3 = 18x-3
Please help! Will mark you brainiest
Question:
Choose the equation that represents the graph below.
A. y = x - 3
B. y = -x + 3
C. y = -x - 3
D. y = x + 3
Answer:D
D
Step-by-step explanation:
:)
Hi, anyone know this? ^^ ill give brainliest if right
Answer:
9/16
Step-by-step explanation:
3/4 x 3/4 = 9/16
help djeifjguikldcfhirdklfjrughenffufkfjeropf
me UmU
Answer:
the slope is 3
Step-by-step explanation:
its rise over run it goes up three and moves to the right one so 3/1=3
Determine whether the relation is a function. (17. -3), (2,-2), (1, 1), (2, 2). (17,3)
C. yes
D. no
brainliest if right , please help
Answer:
No
Step-by-step explanation:
The x value 2 has two y values (2, -2) so it is not a function.
Kaelyn has some yarn that she wants to use to make hats and scarves. Each hat uses 0.20.20, point, 2 kilograms of yarn and each scarf uses 0.10.10, point, 1 kilograms of yarn. Kaelyn wants to make 333 times as many scarves as hats and use 555 kilograms of yarn. Let hhh be the number of hats Kaelyn makes and sss be the number of scarves she makes. Which system of equations represents this situation?
Answer:
s = 3h
0.1s + 0.2h = 5
h = 10
s = 30
Step-by-step explanation:
Given that :
Hat :
0.2kg of yarn
Let Number of hats = h
Kg of yarn used for hat = 0.2 * h = 0.2h
Scarf:
0.1 kg of yarn
Number of scarves (s) = s
Kg of yarn used for scarf = 0.1 * s = 0.1s
Total kg of yarn used = 5 kg
Number of Scarf = 3 times number of hats :
s = 3h - - (1)
0.1s + 0.2h = 5 - - (2)
From 1:
0.1(3h) + 0.2h = 5
0.3h + 0.2h = 5
0.5h = 5
h = 10
s = 3h
s = 3(10) = 30
Solve for x:
−30=5(x+1)
6.3 x 10 to the power of -8
Answer: the answer is 6.3e-8
Step-by-step explanation:
Thats it none if my questions are being answered so I am going to give 30 points
Answer:
nonproportional
Step-by-step explanation:
The line does not pass through the origin (0,0)
Need help please don’t understand
Answer:
7x+20
Step-by-step explanation:
To simplify you mainly just try and combine the terms
First step is to distribute the 2 that is in front of "(5+3x)"
the way you do this is multiply everything inside the parantheses by 2
(5•2+3x•2) = 10+6x
put that into the original equation and now we just have the easy part
10+6x+x+10
combine alike terms
6x+x=7x 10+10=20
7x+20 is that equation simplified
Answer:
7x+20
Step-by-step explanation:
2*5+2(3x)+x+10
10+2(3x)+x+10
10+6x+x+10
6x+x+20
7x+20
Breanna made a scale drawing of her bedroom in order to arrange her
furniture. She used a scale of 1/2 inch = 1 foot. Her bed is 4 1/4 feet by 6
feet. What scale dimensions represent her bed?
Answer:
multiple both the numbers 2 times then add it together
Step-by-step explanation:
Jason, Joel and John share $100.80. Joel has $3.45 more than Jason. John has three times as much money as Joel. How much does Joel have , and How much less money does Jason have than John?
Answer: 66
100.80 - (4x3.45) = 87
87/5 = 17.4
Jason - 17.4
Joel - 17.4+3.45
John - 17.4+3.45 x 4
83.4 - 17.4 = 66
