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3 years ago

1+4=5; 2+5=12; 3+6=21; 8+11=?

2 answers:

3 0

The pattern:
So it goes, 1, 2, 3, as the first number in each equation right.
Then it goes 4,5,6 as the second number in each equation.
In other words, the first number + 3 = the second number

The sum or 3rd number is a zig zag pattern from the first and second numbers as shown below.
1 2 3 4 5 6 7 8 9
4 5 6 7 8 9 10 11 12

1 * 5 = 5, 2 * 6 = 12, 3 * 7 = 21 .... 8 * 12 = 96

So the answer of 8+11=96

Gnom [1K]3 years ago

3 0

8 + 11 = 40. Because, 8+11= 19 and 19 + 21 is 40.

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Solve x in 2|x+ 6| + 9 = 19

xenn [34]

Answer: x=-1

Step by step:

2|x+6|+9=19

Subtract 9 from both sides.

2|x+6|=10

Divide both sides by 2

|x+6|=5

Use the definition of absolute value.

x+6=5

Subtract 6 on both sides

x=-1

Hope this helped! :)

5 0

2 years ago

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Find the slope \mathrm{m}m of the line in the graph below. \mathrm{m} =m=

yulyashka [42]

Answer:

$m=4$ or $m=\frac{4}{1}$

Step-by-step explanation:

To find slope we use the slope formula

$m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

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2 years ago

1. Consistent 2. Equivalent 3. Inconsistent

omeli [17]

Answer:

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7 0

3 years ago

a suit is being sold at a 20 % off (discount). The sale price is $ 270. What was the original price ?

Lisa [10]

Answer:

The original price is 337.50

Step-by-step explanation:

If we get 20% off, we still have to pay 100-20 =80%

Let x be the original price

x *80% = 270

.80x = 270

Divide each side by .80

.80x/.80 = 270/.80

x =337.50

The original price is 337.50

5 0

3 years ago

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A bag has green and purple marbles. Two-fifths of the marbles are green, and the rest are purple.

Musya8 [376]

The number of purple marbles in the bag are; 201 purple marbles

<h3>How to work out fraction of bar model?</h3>

We are told that Two-fifths of the marbles are green, and the rest are purple.

A) The image attached shows the bar model where the shaded parts denote the purple marble while the unshaded parts denote the green marbles.

B) We are told that there are 134 green marbles.

If the total number of marbles are x. Then;

(2/5)x = 134

x = 134 * 5/2

x = 335 marbles

Thus;

Purple Marbles = (3/5) * 335 = 201 purple marbles

Read more about Bar Model at; brainly.com/question/2521312

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2 years ago