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yKpoI14uk [10]
2 years ago
5

12d 14:16:08

Mathematics
1 answer:
GREYUIT [131]2 years ago
5 0

Montando uma expressão para a situação, tem-se que Pedro recebeu 3y - 45 de troco.

----------------

  • O preço total do produto comprado por Pedro é de 45 reais.
  • Pedro pagou em 3 notas de y reais, ou seja, o valor do pagamento é de 3y.
  • O troco é dado pelo excedente do pagamento em relação ao preço total, ou seja, a subtração de 3y por 45.
  • Ou seja, a expressão que representa o troco é: 3y - 45.

Um problema similar é dado em brainly.com/question/21496824

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Answer:

178.3 mm²

Step-by-step explanation:

Surface area = Base area + 3 x side triangles area

Sₐ = 43.3 + 3 x (1/2 x (10 x 9)) = 43.3 + (3 x 45) = 178.3

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3 years ago
What is the radius of the cone?
gayaneshka [121]

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r = 6 in

Step-by-step explanation:

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3 0
3 years ago
(a)/(2a)+(4)/(3a^(2)) ayuda por favor
Irina-Kira [14]

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3a^2+8/6a^2

Step-by-step explanation:

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5 0
3 years ago
Henry used benchmark fraction to compare the lenghts of grasshoppers 5/8 and 7/4. Which grasshopper is longer? Explain.
Goryan [66]
------------------------------------------------------
Change the denominators to be the same
------------------------------------------------------
5/ 8 = 5/8
7/4 = 14/8

Since the denominators are the same, the larger the numerator, the larger the fraction. Therefore 14/8 (7/4) is greater than 5/8. 

14/8 > 5/8
7/4  >  5/8

---------------------------------------------------------------------------------
Answer: The grasshopper that is 7/4 unit long is longer
---------------------------------------------------------------------------------
6 0
3 years ago
Read 2 more answers
THIS IS THE FOURTH TIME I'VE ASKED PLEASE ANSWER<br> √(10 + 4 √(6))<br> not decimal form
nalin [4]

Answer:

\huge\boxed{\sqrt{10+4\sqrt6}=\sqrt6+2}

Step-by-step explanation:

\sqrt{10+4\sqrt6}=\sqrt{6+4+(2)(2)(\sqrt6)}=\sqrt{\underbrace{(\sqrt6)^2}_{=6}+(2)(2)(\sqrt6)+\underbrace{2^2}_{=4}}\\\\\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\=\sqrt{(\sqrt6+2)^2}\\\\\text{use}\ \sqrt{a^2}=|a|\\\\=|\sqrt6+2|=\sqrt6+2

5 0
3 years ago
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