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3 years ago

A local pizzeria sold 55 pizzas yesterday.

2 answers:

7 0

The answer is 66 for the total plus the bonus, the bonus equals 11 pizzas. It is because 55 x (1+20%)= 66 and 11. Meaning 55 pizzas times 1 + 20% equals 66, so it means that the bonus was 11 pizzas and the total that day is 66.

Luba_88 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

20 percent *55 =

(20:100)*55 =

(20*55):100 =

1100:100 = 11

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X + 2 = 5x solve for x.

ivanzaharov [21]

Answer:

x = 1/2 or 0.5

Step-by-step explanation:

Subtract 2 from both sides of the equation

x + 2 - 2 = 5x -2

Simplify

x = 5x -2

Subtract 5x from both sides of the equation

x = 5x -2

x - 5x = 5x - 2 - 5x

Solution

x = 1/2

Hope this helps!! :))

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2 years ago

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it takes 1/2 of a gallon of paint 1/3 of the wall. How Many gallons of paint will it take to paint the entire wall. helppp me as

Sidana [21]

1/3 of the wall takes 1/2 gallon paint.

3(1/3 wall) takes 3(1/2 paint)

1 wall takes 3/2 paint

Answer: 1 $\frac{1}{2}$ gallons paint

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3 years ago

How do you perform the indicated operations and write the answer in form a+bi where a and b are real numbers?

Neporo4naja [7]

It's difficult to answer this question without seeing the "indicated operations" the form a+bi is a standard form for imaginary numbers so you might see 2+3i, you can add this to say 4+5i by adding the real numbers (2+4) and the imaginary numbers (3+5) to get 6+8i. Hope that helps.

3 0

3 years ago

Y=3x+5<br> y=-2x+20<br><br> what does y=

vichka [17]

Answer:

y=14

Step-by-step explanation:

8 0

2 years ago

A fence is to be built to enclose a rectangular area of 210 square feet. The fence along three sides is to be made of material t

Serhud [2]

Answer with explanation:

Let the length of rectangular fence = x meters

Let the width of the rectangular fence = y meters

Thus

$Area=x\times y=210ft^{2}...........(i)$

Now Let the total cost to construct the fence be 'C' can be obtained if we construct the shorter side with material with cost $12 per foot

$\therefore C=5\times (2y+x)+12\times x\\\\C=10y+17x...............(ii)$

Using value of x from the equation i into equation ii we get

$C=10y+17\times \frac{210}{y}$

hence to minimize the cost we differentiate both sides with respect to 'y' and equate the result to zero thus we get

$C=10y+17\times \frac{210}{y}\\\\\frac{dC}{dy}=\frac{d}{dy}(10y+\frac{3570}{y})\\\\0=10-\frac{3570}{y^{2}}\\\\\therefore y=\sqrt{\frac{3570}{10}}=18.894feet$

Thus $x=\frac{210}{18.894}=11.11feet$

Thus value of length = 11.114 feet and value of width = 18.894 feet.

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3 years ago

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