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3 years ago

NEED HELP ASAP PLEASE HELP!

2 answers:

8 0

Both expressions are equivalent.

To prove that, let x equal a random number. For example, let x=1.
-2+3x and 3x+(-2)
-2+ (3 X 1)= 1.
(3 X 1) + (-2) =1

Lorico [155]3 years ago

4 0

These two expressions are equivalent because if you had an equal sigh and equal it to the same answer like 3x+(-2)=2.

Anyways this is called the communative property. The comunuty property is when you change the statement of the equation or the expression.

Im sorry, explaining this is really weird. Trust me this is easier then it sounds. I hope this helps you.

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A trader sold a radio set for 72.00 making a profit of 8% .Find , correct to the nearest ghana cedis ,the cost price for the rad

VMariaS [17]

Given:

The selling price of a ratio set = 72.00

Profit percent = 8%

To find:

The cost price for the radio set.

Solution:

Let x be the cost price for the radio set.

Radio set is sold at 8% profit.

$\text{Selling price}=x+\dfrac{8}{100}x$

$\text{Selling price}=x+0.08x$

$\text{Selling price}=1.08x$

The selling price of a ratio set is 72.00.

$72=1.08x$

$\dfrac{72}{1.08}=x$

$x=66.666...$

$x\approx 67$

Therefore, the cost price for the radio set is 67.

7 0

3 years ago

A circle has its center at the center of a square with 26-inch sides. Using 3.14 for pi, find the area of the square not covered

AlladinOne [14]

For squrae
area=side²
perimiter=4(side)

for circle
area=pir²
circumference=2pir

side=diameter, diameter/2=radius=side/2

find area not covered
that is areasquare-areacircle
areasquare=26²=676 sqauare inches
areaciecle, diameter=side, 26/2=13, area=pi13²=169*3.14=530.66 square inches

areanotcovered=676-530.66=145.34 square inches not coverd

ratio of perimiter to circumferece
perimiter=4*26=104
circumference=2pir=2pi13=26pi=26*3.14=81.64
circumference to perimiter is 81.64/104=0.785

7 0

3 years ago

Read 2 more answers

Answer<br> (5.2 + 6.3) - 12 ÷ 2.5

sweet [91]

Answer:

-0.2

Step-by-step explanation:

5.2 + 6.3 = 11.5

11.5 - 12 / 2.5

-0.5 / 2.5

= -0.2

5 0

3 years ago

Read 2 more answers

Add. (5x - 2y + 7) + (3x + y - 8)

Schach [20]

Answer:

$=8x-y-1$

Step-by-step explanation:

So we have the expression:

$(5x-2y+7)+(3x+y-8)$

Combine like terms:

$=(5x+3x)+(-2y+y)+(7-8)$

Add:

$=8x-y-1$

And we're done!

3 0

3 years ago

Read 2 more answers

Year: %Households:

harkovskaia [24]

Based on the table showing the percentage of households playing games over the net, the average rate of change from 1999 to 2003 is 3.9% per year.

<h3>What is average rate of change?</h3>

This can be found as:

= (27.9 - 12.3) / 4 years

= 3.9% per year

In 2000, the instantaneous rate of change would be:

= (Rate in 2001 - Rate in 1999) / difference in years

= (24.4 - 12.3) / (2001 - 1999)

= 6.05%

Find out more on the average rate of change at brainly.com/question/2263931.

#SPJ1

6 0

2 years ago