All categories

4 years ago

By what percent will the product of two numbers decrease if one of them is increased by 30% and the other is decreased by 30%?

Mathematics

2 answers:

77julia77 [94]4 years ago

8 0

Answer:

Step-by-step explanation:

:(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((()(((((((((((((((((((((()(((((((((((((((((((()()))(((((((((((((()

Ivan4 years ago

7 0

Two numbers A & B, whose product is AB

when A increased by 30% and B decreased by 30%, the product is:
1.3A * 0.7B = 0.91AB
then
1AB - 0.91AB = 0.09 which is 9% decrease. So the answer is a 9% decrease. 
Hope this helps. :)

You might be interested in

Given right triangle ABC with right angle at C, find sin A if a=8 and b=15

Svetllana [295]

Answer:

if you are lookng for C it is 17

Step-by-step explanation:

7 0

3 years ago

Can somebody please put in the correct numbers in both sides of this table thanks!!!

Varvara68 [4.7K]

Answer:

10 tickets = 30$
20 = 60$
30 = 90$
40 = 120$
50 = 150$

5 0

2 years ago

The diagram below shows the dimensions of a triangular park built in a new housing development. Two side lengths and one angle m

evablogger [386]

ANSWER

$x = 50.5 \degree$

EXPLANATION

We use the sine rule for solving triangles.

This is given by the formula,

$\frac{ \sin(A) }{a} = \frac{ \sin(B) }{b} = \frac{ \sin(C) }{c}$

From the triangle,

$\frac{ \sin(x) }{60} = \frac{ \sin(40) }{50}$

We multiply both sides of the equation by 60 to get,

$sin(x) = \frac{ 60\sin(40 \degree) }{50}$

$sin(x) = 0.7713$

We solve for x to obtain,

$x = arcsin(0.7713)$

$x = 50.475$

To the nearest tenth, we round to one decimal place to get,

$x = 50.5 \degree$

7 0

4 years ago

Find the value of x and y

weqwewe [10]

Step-by-step explanation:

all work is shown and pictured

3 0

3 years ago

Can somebody help me in this question? It would be very appreciated! :)

Fiesta28 [93]

Answer:

see explanation

Step-by-step explanation:

The area (A) of a rectangle is calculated as

A = width × length

let width be w then length is 2w + 3 ( 3 more than twice the width ), then

A = w(2w + 3) ← distribute

= 2w² + 3w

When w = 4 , then

A = 2(4)² + 3(4)

= 2(16) + 12

= 32 + 12

= 44 ft²

6 0

3 years ago