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VLD [36.1K]
2 years ago
14

A fence has a total of 800 planks. Violeta paints p planks

Mathematics
1 answer:
ratelena [41]2 years ago
3 0
Answer is 800/p

800 is the number of planks divided by how many she paints a day to calculate the number of days.
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The circle graph shows the results of a survey by a bakery on which of their new products 105 customerspreferred most. How many
Katen [24]

If 105 customers were the total, and 35% prefers cake, we must calculate 35% of 105, then we must do 105 multiplied by 35%, we can doit transforming the 35% in the fraction notation:

35\%=\frac{35}{100}

And the multiplication

105\cdot\frac{35}{100}=36.75

Therefore, if we round it to the nearest whole number, the number of customers that prefer cake is 37.

37 customers prefer cake.

4 0
1 year ago
What’s the area of a circle if the diameter is 80
aleksley [76]

The area of a circle if the diameter is 80 is

A=5026.55

8 0
3 years ago
Read 2 more answers
The blue segment below is a diameter of O. What is the length of the radius<br>of the circle?​
Black_prince [1.1K]

Answer:

the radius is half of O

Step-by-step explanation:

5 0
3 years ago
statistical models predict that price p( in dollars) of a new smartphone will change according to the function p=900-4t^2. where
Gre4nikov [31]

we are given

p=900-4t^2

where

price p( in dollars) of a new smartphone

t is the number of months since January

now, we can solve for t

step-1:

Add both sides by 4t^2

p+4t^2=900-4t^2+4t^2

p+4t^2=900

step-2:

Subtract both sides by p

p+4t^2-p=900-p

4t^2=900-p

step-3:

divide both sides by 4

\frac{4t^2}{4} =\frac{900-p}{4}

t^2=\frac{900-p}{4}

t^2=225-0.25p

step-4:

Take sqrt both sides

\sqrt{t^2} =\sqrt{225-0.25p}

t=\sqrt{225-0.25p}

so, we get

t=\sqrt{225-0.25p}..............Answer

7 0
3 years ago
Subtract the following polynomials, then place the answer in the proper location on the grid.
melamori03 [73]
When we add or subtract polynomials, the addition or subtraction is applied to the coefficients of the terms of equal powers.

For the given polynomials, we are required to do subtraction as follows:
(-4.1 x^2 + 0.9 x - 9.8) - (1.7 x^2 - 2.4 x - 1.6)
= -4.1 x^2 + 0.9 x - 9.8 - 1.7 x^2 + 2.4 x + 1.6
= (-4.1-1.7) x^2 + (0.9+2.4) x + (-9.8+1.6)
= -5.8 x^2 + 3.3 x - 8.2

The final expression (solution) is:
-5.8 x^2 + 3.3 x - 8.2

8 0
3 years ago
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