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3 years ago

Marrisa added 1.56 and 13.47. She got 29.07. What mistake could Marrisa have made?

2 answers:

fomenos3 years ago

6 0

She hadn't lined up the decimal points correctly.

Incorrect way:

13.47
1.56

Correct way:

13.47
1.56

Add them up to get the right answer.

13.47
1.56
+____
15.03

So, the answer is 15.03.

ira [324]3 years ago

6 0

Answer:

Marrisa didin't line up decimals correctly.

Step-by-step explanation:

We have been given that Marrisa added 1.56 and 13.47. She got 29.07. We are asked to find Marrisa's mistake.

Marrisa made a mistake, while writing 1.56 and 13.47 as a addition problem, We didn't place decimal correctly. She would have placed her digit as show below:

13.47

29.07

The correct answer would be:

13.47

15.03

Therefore, Marrisa didin't line up decimals correctly.

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Marrrta [24]

–11x + 6y = –13

Solution:

The points on the line are (5, 7) and (–1, –4).

Here, $x_1=5, y_1=7, x_2=-1, y_2=-4$ \

Slope of the line:

$$m=\frac{y_2-y_1}{x_2-x_1}$

$$m=\frac{-4-7}{-1-5}$

$$m=\frac{-11}{-6}$

$$m=\frac{11}{6}$

Using point-slope formula,

$y-y_1=m(x-x_1)$

$$y-(-4)=\frac{11}{6} (x-(-1))$

$$y+4=\frac{11}{6} x+\frac{11}{6}$

Subtract 4 on both sides of the equation.

$$y=\frac{11}{6} x+\frac{11}{6}-4$

$$y=\frac{11}{6} x+\frac{11}{6}-\frac{24}{6}$

$$y=\frac{11}{6} x-\frac{13}{6}$

Multiply by 6 on both sides of the equation.

$6y=11x-13$

Subtract 11x from both sides of the equation.

–11x + 6y = –13

Hence option A is the correct answer.

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4 years ago

Hailey has five times as many stuffed animals as she does dolls her brother has 18 more video games and Hailey has stuffed anima

Dovator [93]

Answer:

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Step-by-step explanation:

You take 15 plus 18 because hailey has 15 stuffed animals and her brother has 18 more video games then she has animals so you add 15+ 18 to get your final answer of 33 video games

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4 years ago

Evaluate 53 – 2m for m = 3.

irakobra [83]

53 - 2(3)
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4 years ago

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Aleks [24]

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3 years ago

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5z+97=3z+33 how to solve step by step

lilavasa [31]

Answer:

z=-32

Step-by-step explanation:

5z+97=3z+33

Move all the numbers with the same variables to different sides to separate them.

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Solve/Simplify the equation.

2z=33-97

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Divide by 2.

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