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3 years ago

5:12 can be written as an equivalent ratio in the form 20:a what is the value of a

Mathematics

1 answer:

IgorC [24]3 years ago

5 0

Answer:

20:a , a=48

Step-by-step explanation:

5*4=20, 12*4 = 48

Simple mathematics, you multiple 5 by 4 to get 20, do the same thing to 12.

You might be interested in

Find the measure of angle A

otez555 [7]

Answer:

<A=35

Step-by-step explanation:

70+x+79+x+39=180

2x+188=180

2x=-8

x=-8/2 or -4

<A=x+39

<A=-4+39

<A=35

7 0

3 years ago

Can someone solve 8 = b - 1 + 8b STEP BY STEP PLEASE

andrew11 [14]

Answer:

8 = b - 1 + 8b

group like terms

8 + 1 = b + 8b

9 = 9b cus b standing alone me 1b

divide both side by 9

9 = 9b

9 9

b = 1

7 0

3 years ago

A person is selected at random. If there are seven days in a week, what is the probability that the person was not born on a Tue

levacccp [35]

Answer:

5 out of 7.

Step-by-step explanation:

There are seven days in one week. They are asking what is the probability of the person chosen not being born in a Tuesday or Wednesday. There are five other days, so there are five other options.

I hope I helped you!

7 0

3 years ago

Enter an equation for the function that includes the points.Give your answer in a(b)x. In the event that a=1 , give your answer

Andrews [41]

Answer:

$f(x) = \frac{24}{25} * \frac{5}{6}^x$

Step-by-step explanation:

Given

$(x_1,y_1) = (2,\frac{2}{3})$

$(x_2,y_2) = (3,\frac{5}{9})$

Required

Write the equation of the function $f(x) = ab^x$

Express the function as:

$y = ab^x$

In: $(x_1,y_1) = (2,\frac{2}{3})$

$y = ab^x$

$\frac{2}{3} = a * b^2$ --- (1)

In $(x_2,y_2) = (3,\frac{5}{9})$

$y = ab^x$

$\frac{5}{9} = a * b^3$ --- (2)

Divide (2) by (1)

$\frac{5}{9}/\frac{2}{3} = \frac{a*b^3}{a*b^2}$

$\frac{5}{9}/\frac{2}{3} = b$

$\frac{5}{9}*\frac{3}{2} = b$

$\frac{5}{3}*\frac{1}{2} = b$

$\frac{5}{6} = b$

$b = \frac{5}{6}$

Substitute 5/6 for b in (1)

$\frac{2}{3} = a * b^2$

$\frac{2}{3} = a * \frac{5}{6}^2$

$\frac{2}{3} = a * \frac{25}{36}$

$a = \frac{2}{3} * \frac{36}{25}$

$a = \frac{2}{1} * \frac{12}{25}$

$a = \frac{24}{25}$

The function: $f(x) = ab^x$

$f(x) = \frac{24}{25} * \frac{5}{6}^x$

7 0

3 years ago

HELP NOW PLZ!!! IM IN A QUIZ!!! IM GIVING BRAINLIEST AND 15 POINTS!!!!

Serggg [28]

Answer:

Step-by-step explanation:

5 0

3 years ago

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