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3 years ago

A horseback rider travels 2 miles in 12 minutes. At this speed, how long does it take to travel 5 miles?

Mathematics

1 answer:

CaHeK987 [17]3 years ago

7 0

Divide the time he traveled by the distance to find how fast he travels 1 mile, then multiply that by 5 miles:

12 minutes / 2 miles = 6 minutes per mile.

6 minutes per mile x 5 miles = 30 total minutes.

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Solve using quadratic formula pls show work

Temka [501]

Answer:

$x=\frac{3}{8},\:x=0$

Step-by-step explanation:

$x_{1,\:2}=\frac{-\left(-3\right)\pm \sqrt{\left(-3\right)^2-4\cdot \:8\cdot \:0}}{2\cdot \:8}$

$\sqrt{\left(-3\right)^2-4\cdot \:8\cdot \:0}$

$=\sqrt{3^2-4\cdot \:8\cdot \:0}$

$\sqrt{3^2}$

$x_{1,\:2}=\frac{-\left(-3\right)\pm \:3}{2\cdot \:8}$

Separate the solutions:

$x_1=\frac{-\left(-3\right)+3}{2\cdot \:8},\:x_2=\frac{-\left(-3\right)-3}{2\cdot \:8}$

$x=\frac{3}{8},\:x=0$

4 0

2 years ago

Evaluate 3x+4(y+3) when x is 5 less than the quotient of y and 3, and y=18.

romanna [79]

It is given that x is 5 less than the quotient of y and 3.

And given value of y is 18 .

So quotient of y and 3 is

$\frac{18}{3} = 6$

And 5 less than 6 =1

So we have y=18 and x=1

Given expression is

$3x+4(y+3)$

At x=1 and y=18, we will get

$3(1)+4(18+3) =3 + 4(21)$

$= 3+84=87$

4 0

3 years ago

Robert gets a loan from his bank.

masya89 [10]

Answer:

£10200

Step-by-step explanation:

Amount borrowed (P) = £6000

Rate of interest (R) = 7%

Time (T) = 10 years

First, let us calculate the simple interest (SI) for 10 years.

Formula for simple interest is given as:

$S.I.=\frac{PRT}{100}$

Plugging the values of P, R and T in the above formula, we find:

$S.I.=\frac{6000(7)(10)}{100}$

S.I.= £4200

Total money paid back at the end of the 10 years

= £6000 + £4200

= £10200

7 0

2 years ago

A random survey of 60 students show that 36 students use calculators for computation. What is the probability That's student cho

Dima020 [189]

36/60, now reduce.
9/15, reduce more
3/5, so 3.5 of the students chosen at random used a calculator for computation.

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3 years ago

Which of these expressions are equivalent to 7 1/2

jekas [21]

Answer:

it's 7.5

Step-by-step explanation:

1/2 as a decimal is 0.5

5 0

2 years ago