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3 years ago

I am in need of help

Mathematics

1 answer:

kvv77 [185]3 years ago

8 0

CAD= BAD
AD=AD( the same side of two angles).

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Write an expression that represents the

jonny [76]

Answer: x-3

Step-by-step explanation:

3x+3-(2x+6)

= 3x+3-2x-6

3x-2x+3-6

x+3—6

Answer= x-3

6 0

2 years ago

Find the length of AC. <br> (Need help asap)

Ivan

AB is a diameter so radius of circle is 24/2 = 12

Now AC = 2π *12 * (150/360) ≈ 31.42

3 0

3 years ago

Which fractions are equivalent to 8/20 ?

Nadusha1986 [10]

Answer:

2/5. 4/10. 6/15. 8/20. 10/25. 12/30

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Mark and don are planning to sell each of their marble collections at a garage sale. if don has 2 more than 4 times the number o

Sonbull [250]

If the total number of marbles is 102, Mark has 20 marbles while Don has 82 marbles.

To answer this word problem, read and understand first the problem.

"Don has 2 more than 4 times the number of marbles Mark has."

Out of this statement, we can come up with the expression,

Don = 2 + (4 x Mark) (equation 1)

Next, the total number of marbles they have is 102.

Don + Mark = 102 (equation 2)

From this expression, if we subtract the number of marbles Mark has from the total number, we can get the number of marbles Don has.

Don = 102 - Mark (equation 3)

Equating the 1st and 3rd equation,

Don = 2 + (4 x Mark) = 102 - Mark

2 + (4 x Mark) = 102 - Mark

let x = Mark's

2 + (4x) = 102 - x

4x + x = 102 - 2

5x = 100

x = 20

Mark has 20 marbles.

Meanwhile, use either the 1st or 3rd equation to know the number of marbles Don has.

Don = 102 - Mark (equation 3)

Don = 102 - 20

Don = 82

For more examples of mathematical expressions to solve word problems:, brainly.com/question/13818690.

#SPJ4

7 0

1 year ago

Item 19 The scale on a map is 1 cm:30 mi. The distance on the map between San Francisco, CA, and Chicago, IL, is 61.9 cm. What i

Harlamova29_29 [7]

Answer:

1857 miles.

Step-by-step explanation:

We have been given that the scale on a map is 1 cm:30 mi. The distance on the map between San Francisco, CA, and Chicago, IL, is 61.9 cm. We are asked to find the actual distance between San Francisco and Chicago.

We will use proportions to solve our given problem.

$\frac{\text{Actual distance}}{\text{Map distance}}=\frac{30\text{ miles}}{1\text{ cm}}$

Upon substituting map distance between San Francisco and Chicago, we will get:

$\frac{\text{Actual distance}}{61.9\text{ cm}}=\frac{30\text{ miles}}{1\text{ cm}}$

$\frac{\text{Actual distance}}{61.9\text{ cm}}\cdot 61.9\text{ cm}=\frac{30\text{ miles}}{1\text{ cm}}\cdot 61.9\text{ cm}$

$\text{Actual distance}=30\text{ miles}\cdot 61.9$

$\text{Actual distance}=1857\text{ miles}$

Therefore, the actual distance between San Francisco and Chicago is 1857 miles.

4 0

3 years ago