Ask question

Ask question

All categories

2 years ago

10

What is four over nine equal A over 45

1 answer:

QveST [7]2 years ago

5 0

Answer: A = 20

How to Solve:

Just by looking at this problem I can tell that the denominators (9 an 45) are factors of 9. So the second equation is multiplied by 5 from the first equation.

4/9 x 5

4 x 5 = 20
— -—
9 x 5 = 45

So A would be 20.

Another way to solve this would be by multiplying the 1st equations numerator with the second equations denominator:

4 x 45 = 180

Then divide 180 with the 1st equation’s denominator.

180 / 9 = 20

A = 20

You might be interested in

the ratio of the number of cookies baked by anna, danny, and liesa was 5:4:2. after anna ate 30 of her own cookies and danny ate

Dmitrij [34]

Cookies because of x, x = 14

7 0

1 year ago

If f(x)=3x^2+2 and g(x)=x^2-9 find (f-g)(x)

miss Akunina [59]

Here given, $f(x) = 3x^2+2$ and $g(x) = x^2-9$

we have to find $(f-g)(x)$ which means the subtracting of the functions f(x) and g(x).

$(f-g)(x) = f(x) - g(x)$

= $(3x^2+2) - (x^2-9)$

= $3x^2+2 -x^2-(-9)$

= $3x^2-x^2+2+9$ ( we know that multiplication of negative and negative is positive)

= $2x^2+2+9$

= $2x^2+11$

We have got the required answer here.

$(f-g)(x) = 2x^2+11$

6 0

2 years ago

Read 2 more answers

Write 6 1/4% as a decimal.

Zepler [3.9K]

1.) Change the fraction to a decimal. 1÷4=.25%. then add the whole 6. 6+.25=6.25%.2.) now divide by 100. 6.25%×100=.0625. ANSWER: .0625

8 0

2 years ago

Read 2 more answers

Select the correct answer from each drop-down menu. cos2x-cos4x/sin2x+sin4x cos2x+cos4x/sin2x-sin4x

Anastaziya [24]

I’m sorry I’m answering this to ask a question

Explanation:

8 0

2 years ago

10. If a triangle has an angle of 45° and an angle of 100°, what is the third angle?

katrin [286]

Answer:

So, 35 degrees is your answer.

Step-by-step explanation:

180 - 100 - 45 = 35 degrees

Hope my answer has helped you!

4 0

2 years ago

Read 2 more answers