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3 years ago

What percent of the design below is shaded gray?

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

3 0

The answer is 40%. Count how many right triangles there are, there are 20 right triangles. Count how many right triangles are shaded in, there are 8 right triangles that are shaded in. 8/20=0.4 or 40%

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PLZZZ HELP will mark brainliest!

erica [24]

Answer:

(3,8): No, (-1,-11): Yes, (2,7): Yes, (0,-6): No

Step-by-step explanation:

Basically, you just substitute x and y with the numbers given.

18x - 3y = 15

y = 6x - 5

(3,8):

18(3) - 3(8) = 15

54 - 24 = 30 It is not equal to 15, so it does not work.

y = 6x - 5

8 = 6(3) - 5

8 = 13 It is not equal to 8, so it does not work.

Therefore, (3,8) is not a solution.

Try this for every pair and you will find that (-1,-11) and (2,7) are solutions.

I hope this helps!

8 0

3 years ago

What would be the volume of the cone that has the same measurement as the cylinder above in the pic

fomenos

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Volume of cone will be ~

$\fbox \colorbox{black}{ \colorbox{white}{volume} \: \: \: \: \: \colorbox{white}{=} \: \: \: + \colorbox{white}{462 \: cm³ }}$

$\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}$

Let's find the volume of cone with ~

radius (r) = 7 cm

height (h) = 9 cm

And as we know, volume of cone is equal to ~

$\dfrac{1}{3}\pi {r}^{2} h$

now, let's plug in the values and find the volume ~

$\dfrac{1}{ \cancel{3} }\times \dfrac{22}{\cancel{7}} \times \cancel{7 }\times 7 \times \cancel{9}$

$1 \times 22 \times 7 \times 3$

$462 \: \: {cm}^{3}$

Volume of cone is 462 cm³ = 462 ml

7 0

3 years ago

jane spent $15.75 to purchase cookies and brownies for 25 of her classmates. Cookies cost $0.50 and brownies cost $0.75. How man

AlladinOne [14]

im not sure

Step-by-step explanation:s

7 0

3 years ago

Read 2 more answers

A system of

jok3333 [9.3K]

Answer:

A system of

equations with infinitely many solutions would be represented on a graph

by parallel lines.

True

False

It would be True

Step-by-step explanation:

8 0

3 years ago

Long’s Coffee Shop sells a refill mug for $8.95. Each refill costs $1.50. Last month,

dem82 [27]

Answer: 12 refills

Step-by-step explanation:

y = 8.95 + 1.50x

26.95= 8.95 + 1.50x

26.95 - 8.95 = 1.50x

18 = 1.50X

18 / 1.50 = x

X = 12

8 0

3 years ago