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3 years ago

14

Each week, Mr.Jones goes to the grocery store.Mr.jones estimates that he will spend $120 when he goes to the grocery store this

week. He actually spends $94.

1 answer:

77julia77 [94]3 years ago

5 0

If you are asking for percent of decrease then its 21

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What is the answer to 3x+x/4=x+3/4

erica [24]

Answer:x = 1

Step-by-step explanation:

3x + x/4 = x + 3/4

Subtract x from each side

2x + x/4 = 3/4

Times each side by 4

The 4 beneath the x cancels out

3/4 x 4 = 3

2x + x = 3

3x = 3

Divide each side by 3

x = 1

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3 years ago

HURRY NEED HELP ASAP

poizon [28]

I=p*r*t
The answer is 1131.20

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3 years ago

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A helicopter flies over a city. The helicopter changes its altitude by

Shalnov [3]

Answer:

The total change in the altitude is 58.3

Step-by-step explanation:

-42.9 + -15.4 = 58.3

8 0

3 years ago

HELP!<br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx-1%7D-x%3D-7" id="TexFormula1" title="\sqrt{x-1}-x=-7" alt="\sqrt{x-1}-x=

katen-ka-za [31]

$\huge \huge \huge\huge\mathrm{ \boxed{ \boxed{ \boxed{ \boxed{ \boxed {\boxed{ \huge\mathfrak{ Solution}}}}}}}}$

$\sqrt{x - 1} - x = - 7$

$\sqrt{x - 1} =x - 7$

$x - 1 = (x - 7) {}^{2}$

$x - 1 = {x}^{2} + 49 - 14x$

${x}^{2} - 14x + 49 - x + 1 = 0$

${x}^{2} - 15x + 50 = 0$

${x}^{2} - 10x - 5x + 50 = 0$

$x(x - 10) - 5(x - 10) = 0$

$(x - 5)(x - 10) = 0$

$x = 5 \: \: \: or \: \: \: x = 10$

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3 years ago

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Use the recursive relationship to complete the next two rows of Pascal's triangle. Row 5: 1 _ _ _ _ 1 Row 6: 1 _ _ _ _ _ 1

frosja888 [35]

Answer:

1 <u> 5 </u> <u>10 </u> <u>10</u> <u>5</u> 1 Row 5

1 <u>6</u> <u>15</u> <u>20</u> <u>15</u> <u>6</u> 1 Row 6

Recursive relationship:

Each row has number of positions = row number + 1. The Row 0 is always 1.

The first and last number in each row is 1, the number in the second position and the penultimate corresponds to the number of the row. The middle numbers correspond to the sum of the two numbers in the top row. The resulting number from the addition is located in the middle of the numbers added in the next row.

Step-by-step explanation:

The pascal's triangle

* Row 0 = 1

* Row 1 = 1 1

1 Row 0

1 1 Row 1

Since there are only two positions, the first and last are 1.

*Row 2 = 1 _ 1

1 Row 0

1 1 Row 1

1 2 1 Row 2

2 is the sum of 1 + 1 and we place it in the next row between the added numbers 1 and 1.

* Row 3 = 1 _ _ 1

1 Row 0

1 1 Row 1

1 <u>2</u> <u>1 </u> Row 2

1 3 <u>3</u> 1 Row 3

1 + 2 = 3 (the row number and the and adding the numbers from the previous row)

* Row 4 = 1 _ _ _ 1

1 Row 0

1 1 Row 1

1 2 1 Row 2

1 <u>3</u><u> </u> <u>3</u> 1 Row 3

1 4 <u>6</u> 4 1 Row 4

1 + 3 = 4 (the row number)

3 +3 = 6

* Row 5 = 1 _ _ _ _ 1

1 Row 0

1 1 Row 1

1 2 1 Row 2

1 3 3 1 Row 3

1 4 6 4 1 Row 4

1 5 10 10 5 1 Row 5

1 + 4 = 5

4 + 6 = 10

* Row 6 = <u>1</u> _ _ _ _ _ <u>1</u>

1 Row 0

1 1 Row 1

1 2 1 Row 2

1 3 3 1 Row 3

1 4 6 4 1 Row 4

1 5 <u>10</u> <u> 10 </u> 5 1 Row 5

1 6 15 <u>20</u> 15 6 1 Row 6

1 + 5 = 6

5 + 10 = 15

10 + 10 = 20

3 0

3 years ago