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2 years ago

HELP IMMEDDIATLY, PLEASE

Mathematics

2 answers:

kap26 [50]2 years ago

8 0

Answer:

B , C , D

Step-by-step explanation:

1 ) Total liters of Paint in 13 cans are 13 times 5/6 : 5/6 . 13

2) Divide Total liters of paint with the number of cars painted with :

Option B) 5/6 . 13 ÷ 4 = 5/6 . 13/4 = 65/24 = 2.708 = 2.71

Option C) is dividing by 4 first and then multiply by 13 is same as B and D.

5/6 ÷ 4 .13 = 5/6 . 1/4 . 13 = 5/6 . 13/4 = 65/24 = 2.708 = 2.71

Option D) 5/6 . 13/4 = 65/24 = 2.708 = 2.71

So B, C and D are correct answers.

maxonik [38]2 years ago

5 0

I think it's B and D because both of them will give you the same answer which is 2.71 but turn it into fraction.

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3 years ago

Bryce tried to solve an equation step by step. \qquad\begin{aligned} \dfrac83&=3\left(c+\dfrac53\right)\\\\ \\ \dfrac83&

sesenic [268]

Answer:

Bryce is wrong in step 1 because he did not distribute 3 over 5/3

Explanation

Given the steps taken by bryce as shown, we are to find where he made an error

$\qquad\begin{aligned} \dfrac83&=3\left(c+\dfrac53\right)\\\\ \\ \dfrac83&=3c+\dfrac53&\green{\text{Step } 1}\\\\ \\ 1&=3c&\blue{\text{Step } 2}\\\\ \\ \dfrac13&=c&\purple{\text{Step } 3}\\\\ \end{aligned}$

Given the expression;

$\dfrac83&=3\left(c+\dfrac53\right)\\\\ \\$

Step 1:Expand the bracket using the distributive law;

8/3 = 3c + 3(5/3)

<em>Simplify</em>

8/3 = 3c + 15/3

Step 2: Subtract 15/3 from both sides

8/3 - 15/3 = 3c+15/3-15/3

(8-15)/3 = 3c

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Step 3: Multiply both sides by 1/3

-7/3 * 1/3 = 3c * 1/3

-7/9 = c

Swap

c = -7/9

From the calculation, we can see that Bryce is wrong in step 1 because he did not distribute 3 over 5/3 thereby making his solution incorrect

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2 years ago