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Stolb23 [73]
2 years ago
14

Plz ANWSER questions 10,11, and 12, plz Plz no one will amwser

Mathematics
1 answer:
k0ka [10]2 years ago
6 0

Answer:

19,8

105,7

144,84

304

Step-by-step explanation:

At first, 9) is not correct.

Formula for surface of parallelogram is

A=a*H

DONt divide with 2.

So the 9) is 19.8

10) A=15.1*7=105.7

11) A=14.2*10.2=144.84

12) A=20*15.2=304

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please I need help revising maths I struggle maths u don't know want to do or how I should revise it pls help me mathematicians
vfiekz [6]

Answer:

Solving mathematics isn't as difficult as we think.All you have to do is follow the steps and practice more questions

practice makes perfection

4 0
2 years ago
A leprechaun places a magic penny under a​ girl's pillow. The next night there are 2 magic pennies under her pillow. Each night
11Alexandr11 [23.1K]

Answer:

  • tn = 2097152 pennies
  • tn = 20971.52 dollars.

Step-by-step explanation:

A surprisingly large amount of money.

The question is "Does the amount of money just double or do the previous amounts add to the present amount?"

I think it just doubles. Not only that, but she can't spend any of it until night 22 is reached.

  • tn = a*2^(n - 1)
  • a = 1   She starts with 1 penny.
  • n = 22
  • tn = 1*2^(22 - 1)
  • tn = 1*2^21
  • tn = 2097152 pennies
  • tn = 20971.52 dollars.
8 0
3 years ago
Twenty more than four times a number is equal to the difference between 139 and three times the number. Find the number.
Lady_Fox [76]

Answer:

x = 17

Step-by-step explanation:

First, let's turn this into an equation:

twenty more ( +20 ) than four times a number ( 4x ) is equal ( = ) to the difference ( - ) between 139 and 3 times the number ( 3x ).

4x + 20 = 139 - 3x

Now let's solve:

Subtract 20 from each side:

4x = 119 - 3x

Add 3x to each side:

7x = 119

Divide each side by 7:

x = 17

5 0
2 years ago
Ms. Parker baked 6 dozen cookies. She gave 2 dozen cookies to her sister, 1 À dozen
Lyrx [107]

Answer:

Step-by-step explanation:

She gave out three dozen and she had six dozen so she has three dozen left three dozen 3 * 12 she has 36 cookies

6 0
3 years ago
Whats the equation for the table
serg [7]

Answer:

multiply by 32

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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