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beks73 [17]
3 years ago
14

Scarlett knits 2 centimeters of scarf each night. How many nights will

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
8 0

Answer:

3 nights

Step-by-step explanation:

let n equal the number of nights

6 = 2n  ---> 6 cm = 2 cm x the number of nights

6/2 = 2n/2 ---> divide both sides of the equation to isolate n

3 = n ---> number of nights equals 3

6 is the number of centimeters needed divided by 2 the number of centimeters per night which would give you the number of nights.

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Which expression is equivalent to 9s + 3 x 5 -2s?
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The answer is A. When you take the 9s and the -2s, you get 7s. Then you add the 3x5 and end up with 15. Giving you the answer 7s+15
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Two pounds of grapes cost $6. How much does it cost for 5 pounds of grapes
Andreyy89

Answer:

if we take the total cost of the grapes, and divide by the number of pounds of grapes we can conclude that each pound of grapes costs $3. so 5 pounds of grapes multiplied by $3 per pound, gives us $15 for 5 pounds of grapes.

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Use the product property of roots to choose the expression equivalent to 3√5x*3√25x^2?
nignag [31]

Answer: \sqrt[3]{125x^3}.


Step-by-step explanation: Given radical expression

\sqrt[3]{5x} \times \sqrt[3]{25x^2}.

According to the product property of roots.

\sqrt[n]{a} \times \sqrt[n]{b} = \sqrt[n]{a \times b}

On applying above rule, we get

\sqrt[3]{5x} \times \sqrt[3]{25x^2} = \sqrt[3]{5x \times 25x^2}

5 × 25 = 125 and

x \times x^2 = x^3

Therefore,

\sqrt[3]{5x \times 25x^2}= \sqrt[3]{125x^3}

<h3>So, the correct option would be second option \sqrt[3]{125x^3}.</h3>

3 0
3 years ago
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A two-story building measures 21 feet from the ground.Ascale model shows the building to be 3 inches tall. How many inches would
jasenka [17]

Answer: 12\ inches

Step-by-step explanation:

Let be "x" the height inches (in the model) of a 84 foot building.

According to the information provided in the exercise, we know that the height of a two-story building is 21 feet and in the scale model its height is 3 inches.

Knowing this, we can set up the following proportion:

\frac{3}{21}=\frac{x}{84}

The final step is to solve for "x" in order to calculate its value. We get that this is:

\frac{3}{21}=\frac{x}{84}\\\\(84)(\frac{3}{21})=x\\\\x=12

Therefore,  an 84 foot building will be 12 inches tall in the model.

4 0
3 years ago
7 1/3 + 5 5/6 sum up as a fraction please 100 points
beks73 [17]

Answer:

The answer is 13 1/6

Step-by-step explanation:

The answer is 18 because 7 1/3 turns into 7 2/6 and 7 * 6 is 42 and 42 plus 2 is 44. Next You turn 5 5/6 into a improper fraction which turns into 35/6 and 35 plus 44 is 79/6 and 79/6 simplified is 13 1/6

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