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4 years ago

On a number line, the distance from zero to -7 is 7 units.

Mathematics

1 answer:

aivan3 [116]4 years ago

4 0

Answer: Option A. |-7| = 7

Solution:

The distance is a positive value, then we must not take in account the sign, and using:

|a| =-a if a<0

with a=-7

|-7| = -(-7)

|-7| = 7

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What is the slope of the line?<br> y+3 = -4(2 + 7)

Sati [7]

Answer:-4

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

store a sells a 100 oz bottle of cleaner for $12.99 store B sells the same cleaner for $9.49 for a 70 ounce bottle and store sel

solmaris [256]

Answer:

Store C

Step-by-step explanation:

Simply divide the price by the amount to determine which store has the best price efficiency.

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B : 9.49 / 70 = .136¢ per oz

C: 10.98 / 90 = .122¢ per oz

Store C has the best price efficiency

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3 years ago

Read the problem and answer the questions show your solution when necessary.

Alexandra [31]

Answer:

Step-by-step explanation:

1) Number of white chocolate bars = x

Number of dark chocolate bars = y

Total bars = 15

x + y = 15 --------------(I)

Total cost = Php. 340

20x + 25y = 340 ----------------(II)

2) We can use elimination method to solve this equations.

Multiply equation (I) by (-20) and then add the equations.

(I)* (-20) -20x -20y = - 300

(II) <u>20x + 25y = 340 </u> {Now add and x will be eliminated}

5y = 40

y = 40/5

y = 8

Substitute y = 8 in equation (I)

x + 8 = 15

x = 15 - 8

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3) Number of dark chocolate bars = 8

4 0

3 years ago

The mean price of a new laptop computer from Store #1 is $799.99, and they only sell two brands of computers. The mean price of

Sati [7]

<span> value
Weighted mean average = ---------------------------
number of brands

value = mean price of computers from Store #1 * number of brands from store #1 + mean price of computers from store #2 * number of brands from store #2

value = $799.99 * 2 + $679.99 * 4 = $4,319.94

number of brands = 2 + 4 = 6

weighted average = $4,319.94 / 6 = $ 719.99

Answer: option b. $719.99
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2 years ago

What percent of 4c in each expression? <br> 0.2c

Ymorist [56]

The percentage of 4c in the expression 0.2c is 2000%

<h3>How to determine the percentage of 4c?</h3>

The expression is given as:

0.2c

The percentage of 4c is then calculated as:

4c/0.2c

Evaluate the quotient

Express as percentage

2000%

Hence, the percentage of 4c in 0.2c is 2000%