3 years ago

The ratio of the sum of my favorite number and 9 to 15 is the same as the ratio of 3 to 5. What is my favorite number?

Mathematics

2 answers:

Blababa [14]3 years ago

8 0

Let

x---------> my favorite number

we know that

(x+9)/15=3/5------> 5*(x+9)=15*3-----> divide by 5 both sides----> (x+9)=3*3

x+9=9------> x=0

therefore

the answer is

My favorite number is 0

Vitek1552 [10]3 years ago

5 0

Answer:

Your favorite number is 0

You might be interested in

Simplify the following expression: -k - 11 - 2 + 2k

gulaghasi [49]

Answer:

k-13

Step-by-step explanation:

brainliest?

5 0

3 years ago

Read 2 more answers

The point A,B,C and D represent the complex number Z1,Z2,Z3 and Z4 and O is the origin. If OABC is a parallelogram, and Z1=1+3i

aleksley [76]

Complex numbers are divided into two parts; real and imaginary parts. The value of Z3 is $5+ 8i$

Given that:

$Z_1 = 1 + 3i$

$Z_2 = 4 + 5i$

Since O is the origin, then:

$C = OA + OB$

This means that:

$Z_3 = Z_1 + Z_2$

So, we have:

$Z_3 = 1 + 3i + 4 + 5i$

Collect like terms

$Z_3 = 1 + 4+ 3i + 5i$

$Z_3 = 5+ 8i$

Hence, complex number Z3 is $5+ 8i$

Read more about complex numbers at:

brainly.com/question/18509723

8 0

3 years ago

Pls help I’ll brainlest due ASAP

Sholpan [36]

There is no picture Attached

3 0

3 years ago

Read 2 more answers

On a test, Shane answered 37 out of 40 questions correctly . What portion of his answers was correct

nikitadnepr [17]

37x2= 74
37/2=18.5
74+18.5=92.5
93%

8 0

3 years ago

what number must be added to 3 and 8 so that the ratio of the first number to the second number is equal to 3 :4

Grace [21]

The answer is 12.
Steps
If that number is x
(3+x)/(8+x)=3/4
"Cross multply"
4(3+x)=3(8+x)
12+4x=24+3x
x=12
To check: add 12 to 3 and 8. 3+12=15 and 8+12=20. 15/20=3/4

3 0

3 years ago