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Nataly [62]
3 years ago
5

I NEED HELP ASAP WILL GIVE BRAINLYEST

Mathematics
1 answer:
topjm [15]3 years ago
6 0

Answer:

The answer is option 3.

Step-by-step explanation:

The steps are :

3 \sqrt{2} (5 \sqrt{6}  - 7 \sqrt{3})

= (3 \sqrt{2} )(5 \sqrt{6} ) - (3 \sqrt{2} )(7 \sqrt{3} )

= 15 \sqrt{12}  - 21 \sqrt{6}

= 15 \sqrt{4 \times 3}  - 21 \sqrt{6}

= 15(2) \sqrt{3}  - 21 \sqrt{6}

= 30 \sqrt{3}   - 21  \sqrt{6}

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William bought some tickets to see his favorite singer. He bought some adult tickets and some children tickets, for a total of 1
Viefleur [7K]
Hello!

Let 'a' stand for adult tickets and 'c' for children tickets.

a + c = 15

(Both adult and children tickets make up a total of 15 tickets).

30a + 20c = 330

a = 3

c = 12

A N S W E R:

William bought 3 adults tickets and 12 children's tickets.

5 0
3 years ago
The areas of two similar triangles are 18 cm^2 and 8 cm^2. One of the sides of the first triangle is 4.5 cm. What is the length
Nataly_w [17]

Answer:

  3 cm

Step-by-step explanation:

The ratio of areas of similar figures is the square of the ratio of linear dimensions. That means the ratio of linear dimensions is the square root of the area ratio. The ratio of the smaller triangle dimensions to the larger is then ...

  k = √((8 cm^2)/(18 cm^2)) = √(4/9) = 2/3

Then the corresponding side of the smaller triangle is ...

... k · (4.5 cm) = (2/3)·(4.5 cm) = 3 cm

5 0
3 years ago
A recipe for lemonade calls for 2 cups of sugar for every 8 cups of water. How much sugar is needed for each cup of water. A. 1/
Aleksandr [31]

Answer:

1/4 cup of sugar to 1 cup of water

Step-by-step explanation:

you divide 2 by 8 and get 0.25 and that is 1/4.

Hope this helps!!

4 0
3 years ago
Can someone tell me<br> How to solve this and a explanation?
Evgesh-ka [11]

Answer:

C

Step-by-step explanation:

Okay so on Saturday there is a 30% sale plus she comes early so +10% and that makes 40% off.

10% of 400=40

multiply by 4 to get 40%, 40*4=40%

40%=160

400-160=240

Hope this helps

6 0
3 years ago
Read 2 more answers
It takes a day to build 2/3 of a model airplane gow many model airplanes can be built in 6 days​
Sedaia [141]

Answer:

4 airplanes

Step-by-step explanation:

1 = 2/3

6 = x

cross multiply

x = 6 × 2/3

therefore x = 4

5 0
2 years ago
Read 2 more answers
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