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sergij07 [2.7K]
3 years ago
7

WHATS THE ANSWERS PLS TELL MEH PLS

Mathematics
2 answers:
Lelu [443]3 years ago
8 0
<h2>Greetings!</h2>

Answer:

3. C

4. A

4. D

Step-by-step explanation:

3)

When adding two fractions, you must add them with the same denominator. This means finding the lowest common multiple of  10 and 5, which is 50. Simply multiply each fraction by the denominator of the opposite fraction:

\frac{4}{5} * 10 = \frac{40}{50}

\frac{9}{10} * 5 = \frac{45}{50}

Add the two fractions together:

\frac{40}{50} + \frac{45}{50} = \frac{85}{50}  = 1 \frac{35}{50} = 1 \frac{7}{10}

7 + 1 + 1 + 7/10 = 9 7/10


4)

Again, make the denominator the same number by multiplying the fraction by the denominator of the other fraction:

\frac{3}{4} * 3 = \frac{9}{12}

\frac{1}{3} * 4 = \frac{4}{12}

9/12 + 4/12 = 13/12 = 1 1/12

10 + 15 + 1 + 1/12 = 26 1/12


5)

Again, multiply the fraction by the denominator of the opposite fraction:

\frac{1}{2} * 3 = \frac{3}{6}

\frac{1}{3} * 2 = \frac{2}{6}

3/6 + 2/6 = 5/5

7 + 6 + 4 + 5/6 = 17 5/6


<h2>Hope this helps!</h2>
Ray Of Light [21]3 years ago
6 0

Answer: 3) 9 7/10 (C)

4) 26 1/12 pounds (A)

5) 17 5/6 miles (D)



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<img src="https://tex.z-dn.net/?f=12%5Ctimes%2012%5Ctimes%2011" id="TexFormula1" title="12\times 12\times 11" alt="12\times 12\t
vekshin1
12 x 12 x 11
12 x 12 = 144
144 x 11 = 1584


the answer is 1584 ! hope that helps :)
5 0
3 years ago
A college is selling tickets for a winter fund-raiser. One day, Krissa sold 14 adult tickets and 8 student tickets for a total o
FromTheMoon [43]

The statement which explains Krissa’s error is "She switched the prices of the tickets" ⇒ A

Step-by-step explanation:

A college is selling tickets for a winter fund-raiser

  • One day, Krissa sold 14 adult tickets and 8 student tickets for a total of $376
  • The next day, she sold 7 adult tickets and 11 student tickets for a total of $272
  • The price of one adult ticket is a
  • The price of one student ticket is s
  • She wrote and solved the following system of equations.  14a + 8s = 376  and 7a + 11s = 272
  • She found that the price of one student ticket is $20 and the price of one adult ticket is $12

We need to find which statement explains Krissa’s error

∵ The system of equations is:

   14a + 8s = 376  ⇒ (1)

    7a + 11s = 272 ⇒ (2)

Multiply equation (2) by -2 to eliminate x

∵ -14a - 22s = -544 ⇒ (3)

Add equations (1) and (3)

∴ -14s = -168

Divide both sides by -14

∴ s = 12

Substitute the value of s in equation (2) to find a

∵ 7a + 11(12) = 272

∴ 7a + 132 = 272

Subtract 132 from both sides

∴ 7a = 140

Divide both sides by 7

∴ a = 20

∵ a represents the price of one adult ticket

∴ The price of one adult ticket is $20

∵ s represents the price of one student ticket

∴ The price of one student ticket is $12

∵ She found that the price of one student ticket is $20 and

   the price of one adult ticket is $12

- She switched the prices of the tickets

∴ Her error is, she switched the prices of the tickets

The statement which explains Krissa’s error is "She switched the prices of the tickets"

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

5 0
3 years ago
Read 2 more answers
Pls help me on this.......​
Ganezh [65]

Hey there!

<u><em>Your answer is </em></u>-4x+7

<u>Here are the steps to solve:</u>

<em>Given:</em>

<em />-5x-(x-7)

<em>Distribute negative sign:</em>

<em />-5x+x+7

<em>Add like terms:</em>

<em />-4x+7

Have a great day! Hope it helped!

7 0
3 years ago
Find the missing value in the percent statement using a proportion.<br> ______ is 75% of 4.
zavuch27 [327]

Answer: 3

Step-by-step explanation: Hope I helped

3 0
2 years ago
Area of the plane figure
Viefleur [7K]

Answer:

Area = 16.8 * 7 / 2 = 58.8 ft2

Step-by-step explanation:

Have

18.2^2 = 7^2 + a^2

-> a^2 = 18.2^2 - 7^2

-> a^2 = 282.24

-> a = 16.8

Area = 16.8 * 7 / 2 = 58.8 ft2

3 0
3 years ago
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