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3 years ago

Divide 81 into the ratio 5:4

Mathematics

1 answer:

yanalaym [24]3 years ago

7 0

Answer:

45:36 is the answer.

Step-by-step explanation:

Divide 81 by sum of ratio.

81/(5+4)=81/9=9

So,

5×9 : 4×9

45 : 36

Check: 45+36=91

You might be interested in

Use the distributive property to write an expression that is equivalent to 9(c+5).

shepuryov [24]

Answer:

9c + 45

Step-by-step explanation:

The distributive property also known as distributive law of multiplication and division.

In the given expression, distributive law of multiplication is applied where we can multiply first before addition.

Given

9(c+5)

Using distributive property

9(c+5)

= (9 × c) + (9 × 5)

= 9c + 45

9(c+5) = 9c + 45

3 0

2 years ago

I would just like to say how happy I have been for getting answers from other people - it's been great!

MatroZZZ [7]

Answer:

Image A could be a Cylinder

Image B is a Tetrahedron

Step-by-step explanation:

Hope this helps : )

8 0

3 years ago

Can i please have help thanks.

Dmitrij [34]

Answer:

$q = 2(3r + 8)$

Step-by-step explanation:

There are two variables, q and r in the expression given. To make r the independent variable, it simply means, make q the subject of the formula, so that variable q would be dependent on variable r. As r changes, q changes also.

Thus,

$q - 10 = 6(r + 1)$

Open the parenthesis

$q - 10 = 6r + 6$

Add 10 to both sides

$q - 10 + 10 = 6r + 6 + 10$

$q = 6r + 16$

$q = 2(3r + 8)$

4 0

3 years ago

Subtract u from the sum of s and t

Yanka [14]

Answer:

(s+t)-u

Step-by-step explanation:

You have to add s and t.

Since they are variables, the sum will be s+t

you then have to subtract u from s and t so, you have (s+t)-u

3 0

3 years ago

Help needed!! 10 points up! Please!!

laiz [17]

$HEY MATE !!$

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

As we know secx = hypotenuse/ perpendicular

And cotx = Base / perpendicular

So now we have to find BASE .

${25}^{2}= {B}^{2}+ {24}^{2}$
625= ${B}^{2}$ + 576
${B}^{2}$ = 625 - 576
${B}^{2}$ = 49

Taking squre root on both sides.

B = 7

Now cotx = 24/ 7

SO YOUR ANSWER IS OPTION . (C)

HOPE YOU LIKED.

6 0

3 years ago