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3 years ago

Shaan walks 2.5 meters per second. His brother Dhvan walks 1 meter

Mathematics

1 answer:

MissTica3 years ago

6 0

Answer:

The race must be up to 29 meters for Dhvan to win.

Step-by-step explanation:

Since Shaan walks 2.5 meters per second, while his brother Dhvan walks 1 meter per second, and Dhvan wants to have a race, and Shaan knows that he walks faster, but he wants to give his brother a head start of 45 meters, so it doesn't seem that he is allowing him to win, to determine how many meters long should the race be in order for Dhvan to win the following calculation must be performed:

45 / (2.5 - 1) = X

45 / 1.5 = X

30 = X

Therefore, the race must be up to 29 meters for Dhvan to win.

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7100 dollars is placed in an account with an annual interest rate of 5%. To the nearest tenth of a year, how long will it take f

kow [346]

Answer:

After $26.91\ years$ the principle amount value will reach to $26400\ dollars$ .

Step-by-step explanation:

Given that,

Principle Amount $(P)= 7100\ dollars$

Rate of Interest $(R)=$ $5$ %

Total Amount $(A)= 26400\ dollars$

If Principle Amount $(P)$ $=P\ dollars$ , Time $=t\ years$ , Rate of Interest $=R$ % $pa$

when interest is compounded annually:

Total Amount after $t\ years$ $= P(1+\frac{R}{100}) ^{t}$

Now,

$A= P(1+\frac{R}{100}) ^{t}$

⇒ $26400=7100(1+\frac{5}{100}) ^{t}$

⇒ $3.7183=(1+0.05)^{t}$

⇒ $3.7183=(1.05)^{t}$

taking log both sides, we get

$ln(3.7183)=ln {(1.05)^{t}}$

⇒ $1.31327=t\times ln(1.05)$

⇒ $1.31327=t\times 0.04879$

⇒ $t=26.91$

Therefore,

After $26.91\ years$ the principle amount value will reach to $26400\ dollars$ .

6 0

4 years ago

Read 2 more answers

Identify the roots of the quadratic function.

Anna [14]

Answer:

A. x=0 and x=4

Step-by-step explanation:

The roots of a quadratic function are the x intercepts of the parabola. In this case, the roots are 0 and 4 because the parabola intercepts the x axis twice in these points.

Your answer is A. x=0 and x=4

Hope I helped!

4 0

3 years ago

Read 2 more answers

7-3x2+4+3 rewrite the expression so that is has a value of 27 by using one or more sets of parentheses

Musya8 [376]

(7 - 3) x (2 + 4) + 3 = 27

5 0

4 years ago

Fiecare dintre cei 25 de elevi ai clasei a |||-a a realizat un jurnal al luni . Stiind ca pentru fiecare zi s-a folosit o pagina

sammy [17]

The question in English
Each of the 25 students in the class has made a journal on Monday. Knowing that every day a page was used and that the month is 31 days, find out how many pages the logs of all students.

Let
x--------------> total students
y--------------> total days in a month
z--------------> total page used per one student in 1 day
T--------------> total page used per total students in 1 month

we know that
x=25 students
y=31 pages
z=1 page

T=[x]*[y]*[z]------------> T=[25]*[31]*[1]------------> T=775 pages

the answer is 775 pages

the answer in Romanian

lăsa
x--------------> numărul total de elevi
y--------------> total zile într-o lună
z--------------> pagina totală utilizată pentru un student în 1 zi
T--------------> pagina totală utilizată pentru toți elevii în 1 lună
noi stim aia
x=25 elevi
y=31pagini
z=1 pagină

T=[x]*[y]*[z]------------> T=[25]*[31]*[1]------------> T=775 pagini

răspunsul este de 775 de pagini

5 0

4 years ago

The lowest point in the United States is the Sierra Nevada in California. Its altitude is 300 feet below the sea level. Identify

Effectus [21]

Answer:

300 feet

Step-by-step explanation:

The absolute value of a number is defined as that number's distance from 0 (the origin) on a number line, regardless of direction.

In this case, the origin can be represented by sea level. Since the lowest point of 300 feet is taken by reference to sea level, it can be said that the absolute value of the point is 300 feet, since this represents its vertical distance from sea level.

Hope this helps!

6 0

2 years ago