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3 years ago

Pls help me and I’ll give brainliest to u

Mathematics

1 answer:

bonufazy [111]3 years ago

8 0

Answer:

35$ becuase 5 times ten dollars for each person for lunch then yoy take that 50 and subtract it from 225 then you divide 175 which is the sum of 50 minus 225 and divided 175 by 55 and you get 35

Step-by-step explanation:

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Answer:

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3 years ago

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Answer:

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3 years ago

Is this a Percent Increase or Decrease Problem?

nydimaria [60]

Answer:

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3 0

3 years ago

A circle has an area of 314.1592. What is the diameter? (round to the nearest whole number)

ad-work [718]

Answer:

Step-by-step explanation:

The area of a circle is equal to pi*radius^2

We can then write this as

314.1592=π*r^2

We then divide pi to get

100=r^2

take the square root and you find that the radius equals around 10

The diameter is always equal to the radius times two which means that the diameter is 20

hope this helps

8 0

3 years ago

What is the area of the figure?<br><br> 40 ft2<br> 84 ft2<br> 96 ft2<br> can't be determined

mina [271]

Answer:

$A=80\ ft^2$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of an isosceles triangle (has two equal sides) plus the area of a rectangle

step 1

Find the area of the triangle

The area of the triangle is equal to

$A=\frac{1}{2}bh$

we have

$b=16\ ft$

To find out the height of the triangle Apply the Pythagorean Theorem

$10^2=(16/2)^2+h^2$

solve for h

$100=64+h^2$

$h^2=100-64$

$h^2=36$

$h=6\ ft$

<em>Find the area of triangle</em>

$A=\frac{1}{2}(16)(6)$

$A=48\ ft^2$

step 2

Find the area of rectangle

The area of rectangle is equal to

$A=LW$

we have

$L=16\ ft\\W=2\ ft$

substitute

$A=(16)(2)=32\ ft^2$

step 3

Find the area of the figure

Adds the areas

$A=48+32=80\ ft^2$

5 0

3 years ago