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3 years ago

When evaluating the expression 3 x (3 + 12/3) - 4, Ryan began with 3 + 12. What was Ryan's mistake?

Mathematics

2 answers:

Airida [17]3 years ago

6 0

Answer:

He didn't follow the pemdas rule (see explanation)

Step-by-step explanation:

Rayan's mistake is that he didn't follow the pemdas rule, which states that you start with wat is inside parentheses first, then exponents then multiplication and division(from left to right) and then adding and subtracting (from left to right).

KIM [24]3 years ago

3 0

Answer:

He has to divide 12/3 first

Step-by-step explanation:

it’s like pemdas you have to do that first then you go on to added the 3+ whatever 12/3 is

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Write 0.088 as a fraction in simplest form.

zhenek [66]

11/25

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3 years ago

A year ago, my dog weighed 3kgs. I weighed him today and he weighs 4/10 more. How much does he weigh now?

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3 years ago

The midpoint of (3 x, -2) and (-4, 5y) is (1,4). find x, -y

Mariana [72]

Answer:

(x,-y): (2,-2)

Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

$\frac{3x - 4}{2}$

This implies:

$1 = \frac{3x - 4}{2}$

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In a similar way,

$4 = \frac{ - 2 + 5y}{2} \\ - 2 + 5y = 8 \\ 5y = 10 \\ y = 2$

The question demanded (x,-y)

Hence(2,-2) is the answer

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2 years ago

Help pretty please .w.

sineoko [7]

I don’t know what that is it’s probably 9999999

4 0

3 years ago

Read 2 more answers

What is the quadratic formula of 4x2+3x+5=0

maxonik [38]

4x² + 3x + 5 = 0
x = -3 +/- √(3² - 4(4)(5))
 2(4)
x = -3 +/- √(9 - 80)
 8
x = -3 +/- √(-71)
 8
x = -3 +/- √(71 × (-1))
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x = -3 +/- √(71) × √(-1)
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x = -3 +/- 8.43i
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x = -0.375 +/- 1.05375i
x = -0.375 + 1.05375i x = -0.375 - 1.05375i

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3 years ago