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3 years ago

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A bricklayer lays 421 bricks on day 1 of a project, 623 on the 2nd day, and 343 the 3rd day, how many was the total number of br

icks for all 3 days

1 answer:

Angelina_Jolie [31]3 years ago

4 0

1,387 because you just add all the bricks (421+623+343)

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Sixty students eat twenty four pizzas.To find how many pizzas are needed to feed fifteen students, Set up the problem but don't

bezimeni [28]

Idk what you mean the answer is 15 students eat six pizzas

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3 years ago

chris has a collection of dimes and quarters worth $4.25. if she has 23 coins total, how many quarters does she have.

ohaa [14]

Answer:

b

Step-by-step explanation:

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3 years ago

PLEASE HELP WILL GIVE BRAINLIEST <br> I don't understand this at all

castortr0y [4]

Answer:

y= -x(x+2)(x-1)².

Step-by-step explanation:

the graph and equation is in the attached picture.

The zeros of function y are: -2; 0 and 1 - they help to determine the required equation.

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2 years ago

In 1980, the average monthly rate for basic able TV in the United States was

poizon [28]

The average rate of change in the monthly rate per year is -$0.056 i.e decreases by 0.056 every consecutive year.

Step-by-step explanation:

Step 1; The initial value is $7.69 in 1980 and the final value is $6.13 in 2008.

Difference in values = Final value - initial value = $6.13- $7.69 = -$1.56 (the negative symbol indicates that the cost has gone down with time)

Period between the values =Final year - initial year = 2008 - 1980 = 28 years.

Step 2; To find the rate of change per year, we divide the difference in values in that given period of time by the number of years in that period.

Rate of change per year = Difference in values in that period/ no of years.

= -$1.56 / 28 = -$0.056 (the negative symbol indicates that the cost has gone down with time)

So for every year between 1980 and 2008, the price of the monthly rate for basic able TV reduced by $0.056.

6 0

3 years ago

The width of a rectangle is 5 units less than the length. The area of the rectangle is 6 units. What is the width, in units, of

Readme [11.4K]

Answer:

The width of rectangle is 1 unit.

Step-by-step explanation:

Given:

The area of rectangle is 6 units and its width is 5 units less than the length.

So, to find the width of rectangle.

Let the length be $x$ and the width be $x-5$ .

Now, to find the width we put the formula of area of rectangle:

Area = length × width

$6= x\times (x-5)$

$6=x^{2}-5x$

$0=x^{2}-5x-6$

$0=x^{2}-6x+x-6$

$0=x(x-6)+1(x-6)$

$0=(x-6)(x+1)$

<em>On solving equation we get:</em>

$x-6=0, x+1=0$

Therefore, we take the value x=6 as it is positive value:

$x-6=0$

$x=6$

So, the width of rectangle:

Width = $x-5$

= $6-5$

= $1$

Therefore, the width of rectangle is 1 unit.

8 0

3 years ago