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2 years ago

Perform the indicated operation.

Mathematics

1 answer:

Ahat [919]2 years ago

4 0

Answer:

$\frac{10}{14} + \frac{11}{14 } = \\ \frac{10 + 11}{14} = \\ \frac{21}{14} = \\ \frac{3}{2} = \\ 1 \frac{1}{2}$

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Mr. Rr the Rreliable Rrobot has been programmed to whistle every $18$ seconds and do a jumping jack every $42$ seconds, starting

sveta [45]

Answer:

7 times during the first 15 minutes

Step-by-step explanation:

Remember that

$1\ min=60\ sec$

$15\ min=15(60)=900\ sec$

Decompose the numbers 18 and 42 in prime factors

we know that

$18=(2)(3^2)$

$42=(2)(3)(7)$

Find the least common multiple (LCM)

The LCM is

$(2)(3^2)(7)=126\ sec$

we need to find all multiples of 126 that are less than or equal 900.

$126*1=126\ sec\\126*2=252\ sec\\126*3=378\ sec\\126*4=504\ sec\\126*5=630\ sec\\126*6=756\ sec\\126*7=882\ sec$

therefore

7 times during the first 15 minutes

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2 years ago

What would this answer be if i solved for x?

Molodets [167]

Answer: x= -7

Explanation: These equations together should equal 180 because it is a line. Therefore
x + 67 + x + 127 = 180

Combine like terms
2x + 194 = 180

Then
2x = -14

x= -7

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2 years ago

measure the length of 10 color pencils to the nearest fourth inch.then make a line plot of the data.?

lesantik [10]

The answer is about 70 inch

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2 years ago

Read 2 more answers

Find the area of the triangle.

Vsevolod [243]

Answer:

20 m²

Step-by-step explanation:

Formula (Area of triangle):

$\text{A (Triangle)} = \dfrac{1}{2} \times \text{Base} \times \text{Height}$

From the triangle, we can see that the base of the triangle is "7 + 3" m and the height of the triangle is "4" m.

$\implies \text{A (Triangle)} = \dfrac{1}{2} \times (7 + 3) \times (4)$

Simplify the right-hand-side as needed to evaluate the area.

$\implies \text{A (Triangle)} = \dfrac{1}{2} \times (10) \times (4)$

$\implies \text{A (Triangle)} = \dfrac{40}{2} = 20 \ \text{m}^{2}$

Therefore, the area of the provided triangle is 20 m².

Learn more about this topic: brainly.com/question/15442893

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2 years ago

On Monday, Rachel bought 13 yards of fabric in order to make face masks. Later that day, she purchased another 6 3/4 yards. On W

Vladimir [108]

Answer:

14.65

Step-by-step explanation:

You add 13 + 6 3/4 then subtract 5 1/10 from that and you have your answer.

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2 years ago