Ask question

Ask question

All categories

3 years ago

9

The length of a rectangle is 16m greater than the width. If the perimeter of a rectangle is 256m, what is the width of the recta

ngle?

1 answer:

kkurt [141]3 years ago

3 0

Answer:

L=16+W

2W+2(16+W)=256

2W+32+2W=256

4W=224

W=56

You might be interested in

What is the equation of a line parallel to the line y = 4x + 7 and passes through the point (3, 0)?

KATRIN_1 [288]

Two lines to be parallel their slopes have to be equal.

so m1 = m = 4

y = mx + b ( Slope intercept form)

y = 4x + b

(3,0) is on the line:

0 = 12 + b

b = -12

y = 4x - 12

5 0

3 years ago

If f(x)=3x² - 4 and g(x)=x+2, find (f - g)(x).

nika2105 [10]

Answer:

D

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= 3x² - 4 - (x + 2) ← distribute parenthesis by - 1

= 3x² - 4 - x - 2 ← collect like terms

= 3x² - x - 6

3 0

2 years ago

Trent is fishing from a pier.

snow_tiger [21]

To estimate the distance between the tip of his fishingrod which is above the water and the hook which is below the water, you will need to estimate the absolute values of both distances.
|53 3/4| + |12 2/3|54 + 1367 ft
Trents estimate is not reasonable because you would around both of these values up to the next whole number making it greater than 65.

4 0

3 years ago

Hailey sold 20 tickets to the school play for a total of 225$.Early bird tickets were 10$ and regular priced tickets were 15$.Wr

dlinn [17]

Answer:

The system of equation are $\left \{ x+y=20} \atop {10x+15y=225}} \right.$

The number of early bird tickets are <u>15</u> and of regular tickets are <u>5</u>.

Step-by-step explanation:

Given,

Total number of tickets = 20

Total amount = $225

Solution,

Let the number of early bird tickets be 'x'.

And also let the number of regular tickets be 'y'.

Now total number of tickets is the sum of number of early bird tickets and number of regular tickets.

So framing in equation form, we get;

Total number of tickets = number of early bird tickets + number of regular tickets

$x+y=20\ \ \ \ equation\ 1$

Again, Total amount is the sum of number of early bird tickets multiplied with price of each ticket and number of regular tickets multiplied with price of each ticket.

So framing in equation form, we get;

$10x+15y=225\ \ \ \ \ equation\ 2$

Hence the system of equation are $\left \{ x+y=20} \atop {10x+15y=225}} \right.$

Now we solve the equation by multiplying equation 1 by 10, and get;

$10(x+y)=20\times10\\\\10x+10y=200\ \ \ \ equation\ 3$

Now subtracting equation 3 from equation 2, we get;

$(10x+15y)-(10x+10y)=225-200\\\\10x+15y-10x-10y=25\\\\5y=25\\\\y=\frac{25}{5}=5$

On substituting the value of 'y' in equation 1, we get;

$x+y=20\\\\x+5=20\\\\x=20-5=15$

Hence The number of early bird tickets are <u>15</u> and of regular tickets are <u>5</u>.

3 0

3 years ago

Please help and actually answer the question (no websites, trolls, etc please.) <br> Thnak you

alina1380 [7]

Answer:

B

C

Step-by-step explanation:

Convert 30% to a decimal:

30% = 0.30

Check each item by multiplying the original price by 0.30 (the 30% off sale). Subtract the product from the original price. If the sale price is the same, the pricing is correct. If they are different, the pricing is incorrect.

Headphones:

24.50 × 0.30

7.35

24.50 - 7.35

17.15

17.15 = 7.35? Incorrect.

Phone Charger:

29.25 × 0.30

8.775

29.25 - 8.775

20.475

Round to the nearest cent (hundredths place):

20.48

20.48 = 20.48? Correct.

Minitablet:

117.95 × 0.30

35.385

117.95 - 35.385

82.565

Round to the nearest cent:

82.57

82.57 = 82.57? Correct.

Printer:

213.45 × 0.30

64.035

213.45 - 64.035

149.415

Round to the nearest cent:

149.416

149.416 = 207.47? Incorrect.

Flat Screen TV:

376.98 × 0.30

113.094

376.98 - 113.094

263.886

Round to the nearest cent:

263.89

263.89 = 236.89? Incorrect.

4 0

3 years ago