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3 years ago

What do 8:5 16:10. 24:15 what do these ratios have in common.

Mathematics

2 answers:

natita [175]3 years ago

7 0

Answer:

they are all equivalent to 8:5

Step-by-step explanation:

that is because is you simplify 16:10 by 2 you get 8:5 and when you simplify 24:15 by 3 you get 8:5

Harlamova29_29 [7]3 years ago

7 0

Their all divisible by the first number for ex 16 divided by 8 is 2, 32 divided by 8 is 3

10 divided by 5 is 2

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You deposit $200 in an account earning 3.5% simple interest. How many years will it take for the balance of the account to be $2

sweet [91]

I = PRT

21 = 200 * 0.035 * T

21 = 7T

3 years = T

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3 years ago

a pair of pants that regularly costs $55 are on sale for 35% off the regular price what is the sale price?

Alexeev081 [22]

$35.75

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4 0

3 years ago

Read 2 more answers

Find an equation of the line given one point and the slope. (–10, –5);

allochka39001 [22]

You forgot to provide the slope but here is how you do this

the slope 5 = (y2 - y) / (x2 - x) but we know that (x2, y2) = (-10, -5)
=> (-5 - y) / (-10 - x) = 5 --- multiply both sides by (-10 - x)
=> (-5 - y) = 5 (-10 - x)
=> (-5 - y) = -50 - (5)x --- add +5 to both sides
=> -y = (-50 + 5) - (5)x --- multiply both sides -1
=> y = 5x + 45 --- this will be your equation.

7 0

3 years ago

4/x-1+6/x+1=-12/x^2-1

Mademuasel [1]

$\frac{4}{x - 1} + \frac{6}{x + 1} = \frac{-12}{x^{2} - 1}$

$\frac{4(x + 1)}{(x - 1)(x + 1)} + \frac{6(x - 1)}{(x - 1)(x + 1)} = \frac{-12}{x^{2} - 1}$

$\frac{4x + 4}{x^{2} - 1} + \frac{6x - 6}{x^{2} - 1} = \frac{-12}{x^{2} - 1}$

$\frac{10x - 2}{x^{2} - 1} = \frac{-12}{x^{2} - 1}$

$(10x - 2)(x^{2} - 1) = -12(x^{2} - 1)$
$10x^{3} - 10x^{2} - 2x^{2} + 2 = -12(x^{2}) + 12(1)$
$10x^{3} - 12x^{2} + 2 = -12x^{2} + 12$
$10x^{3} - 12x^{2} + 12x^{2} + 2 = -12x^{2} + 12x^{2} + 12$
$10x^{3} + 2 - 2 = 12 - 2$
$\frac{10x^{3}}{10} = \frac{10}{10}$

$x^{3} = 1$
$x = 1$

4 0

3 years ago

A white tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute.

bogdanovich [222]

Answer:

the Bision is 10 miles / hour faster if he could keep it up

Step-by-step explanation:

There are 60 minutes in an hour.

Therefore the bison can run [3520 feet / min] * [60 min ] =211288 feet in an hour.

Now you have to convert 212200 to miles. Do this by dividing by 5280

212200/5280 = 40 miles.

Kind of hard to believe isn't it. 40 miles is a long way when you are running it.

The bison is faster by 10 miles / hour.

This can be done all in 1 step if you know how to do dimensional analysis

3520 feet / minute * [ 60 min/ hour ] * [ 1 mile / 5280 feet] = 40 miles

5 0

3 years ago