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3 years ago

How far does a horse travel if it gallops at an average speed of 25 km/h for 30 min?

Mathematics

1 answer:

marishachu [46]3 years ago

4 0

Answer:

12.5 km.

Step-by-step explanation:

Distance = average speed x time = 25 km/h x 0.5 h = 12.5 km.

if wrong, sorry

(but most likely right)

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Shaquil needs to borrow $400. The loan company charges him $80 in fees for the loan. Shaquil calculates that the annual percenta

lesya [120]

Answer:

(B)

Step-by-step explanation:

PRINCIPAL AMOUNT(p) = $400

RATE (r)= 250% = 2.5

INTEREST = $80

t = time (in days) = t/365

By using the formula,

r = $\frac{i}{pt}$

2.5 = $\frac{80*365}{400*t}$

t = $\frac{364*80}{400*2.5}$

t = 29.2

t = 29 days (approx)

Hence option (B) is correct.

6 0

4 years ago

Read 2 more answers

Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What

jek_recluse [69]

Answer:

0.98

Step-by-step explanation:

The investment starts at $10,000.

$10,000 is 100% of the investment.

In the first year, it loses 2% of its value. That means that after 1 year, the value of 100% of $10,000 is decreased by 2% of $10,000.

100% - 2% = 98%

After the first year, the investment is worth 98% of the original value.

98% as a decimal is 0.98

Answer: 0.98

4 0

3 years ago

Read 2 more answers

One positive number is 5 times another number. The difference between the two numbers is 200, find the numbers.

Ilya [14]

X = 5y, where x > 0 and y > 0;
x - y = 200 => 5y - y = 200 => 4y = 200 => y = 200/4 => y = 50 => x = 250.

4 0

3 years ago

Translate this phrase into an algebraic expression.

ArbitrLikvidat [17]

19+2n, n being the number.

8 0

4 years ago

Let V be the volume of a right circular cone of height h=14 whose base is a circle of radius R=2. An illustration a right circul

Alla [95]

Answer:

The area of a horizontal cross section at a height is $\pi\times(2-\dfrac{y}{7})^2$

Step-by-step explanation:

Given that,

Height = 14 m

Radius = 2 m

Let V be the volume of a right circular cone

We need to calculate the value of R

Using given data

$\dfrac{h}{r}=\dfrac{h-y}{R}$

Put the value into the formula

$\dfrac{14}{2}=\dfrac{14-y}{R}$

$7R=14-y$

$R=2-\dfrac{y}{7}$

We need to calculate the area of a horizontal cross section at a height y

Using formula of area

$A=\pi R^2$

Put the value into the formula

$A=\pi\times(2-\dfrac{y}{7})^2$

Hence, The area of a horizontal cross section at a height is $\pi\times(2-\dfrac{y}{7})^2$

3 0

3 years ago