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Alex Ar [27]
3 years ago
13

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel

has a 20 m head start, how long will it take for Liu to catch Mariel?
Mathematics
1 answer:
Morgarella [4.7K]3 years ago
7 0

We have that, how long it will take for Liu to catch Mariel is mathematically given as

t=3.076s

From the question we are told

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel has a 20 m head start, how long will it take for Liu to catch Mariel?

Generally the equation for the Average speed is  mathematically given as

v_a=\frac{5.4+7.6}{2}\\\\V_a=6.5m/s

Therefore

How long it will take for Liu to catch Mariel is mathematically given as

t=\frac{20}{6.5}

t=3.076s

For more information on this visit

brainly.com/question/23379286

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If 840 CLASS eighth graders, making up 4/5 of total eighth, studied algebra during summer, how many eighth graders are enrolled
Anarel [89]

Answer:

1008

Step-by-step explanation:

If 4/5 of eighth graders, or 80%, are enrolled with class, there are still 20% of students that didn't study. That means you add 168, the 20%,  and you'll get 1008.

3 0
2 years ago
A train ticket from San Francisco to Las Vegas is fives times more expensive thana bus ticket. A train tickets costs $130. How m
alexira [117]

train tickets costs: $130 (t)

Bus ticket cost: ? (b)

\frac{t}{5}=b\frac{130}{5}=b26=b

the bus ticket cost $26

3 0
1 year ago
For the polynomial x5 – 2x6 + 3, which of these statement(s) is true? Select all that apply A. The polynomial is a trinomial. B.
Evgen [1.6K]

Answer:

A, B and D

Step-by-step explanation:

A. The polynomial is a trinomial.

A trinomial refers to a polynomial with three terms. This option is correct.

B. The degree of the polynomial is 6.

Degree refers to the highest power in the polynomial. This option is correct.

C. The leading coefficient is 1

This is false. The leading coefficient is the coefficient of the variable bearing  the degree of the polynomial. This is wrong.

D. Written in standard form, the polynomial is –2x6 + x5 + 3.

This is correct.

5 0
3 years ago
If f(x) = 6x-11, what is f(-6)?​
In-s [12.5K]

If f(x) = (6x-11), then f(-6) = -47.

We are provided in the question statement with a function "f(x)" whose output is a polynomial of 1 variable and degree 1.

To obtain the value of f(-6) from the output polynomial of the function f(x), we will simply need to substitute (-6) as the value of x in the polynomial and calculate the final value.

So,

f(-6)=[(6*(-6))-11]\\or, f(-6)=(-36-11)\\or, f(-6)=-(36+11)\\or, f(-6) =-47

Hence, f(-6) = -47.

  • Polynomial: In mathematics, an expression of more than two algebraic terms, especially the sum of several terms that contain the same variable(s) of different powers and individual, distinct co-efficients.
  • Function: In Mathematics, a function is an operator which on taking input, provides a certain output.

To learn more about Polynomials and Functions, click on the link below.

brainly.com/question/26910958

#SPJ9

5 0
1 year ago
Help with this question quick???
SIZIF [17.4K]
Mars is the correct answer
8 0
3 years ago
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