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KiRa [710]
3 years ago
9

Jack is in charge of road construction crew. The crew must complete 6/7 of a mile of the road by the end of the day. By noon the

y had completed 3/7 of a mile. How much more road do they have to complete?
Mathematics
1 answer:
Crazy boy [7]3 years ago
5 0
3/7? I’m not positive on this, it’s very straightforward but i mean 6/7 - 3/7 = 3/7 so i’m going with that
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The radius is longer than the diameter.<br><br> A) never true<br><br> B) always true
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Answer:

a) never true

Step-by-step explanation:

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Find the value of x and y​
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Answer:

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2 years ago
the first term of an arithmetic sequence is 2 and the sum of the first 15 terms is 292.5. Find the common difference
adelina 88 [10]

Given:

First term of an arithmetic sequence is 2.

Sum of first 15 terms = 292.5

To find:

The common difference.

Solution:

We have,

First term: a=2

Sum of first 15 terms: S_{15}=292.5

The formula of sum of first n terms of an AP is

S_n=\dfrac{n}{2}[2a+(n-1)d]

Where, a is first term and d is common difference.

Putting S_{15}=292.5, n=15 and a=2 in the above formula, we get

292.5=\dfrac{15}{2}[2(2)+(15-1)d]

292.5=\dfrac{15}{2}[4+14d]

292.5=15[2+7d]

Divide both sides by 15.

\dfrac{292.5}{15}=2+7d

19.5=2+7d

19.5-2=7d

17.5=7d

Dividing both sides by 7, we get

\dfrac{17.5}{7}=d

2.5=d

Therefore, the common difference is 2.5.

8 0
3 years ago
2sin 2x =1 ( 0 &lt; x 2π )
yuradex [85]

Answer:

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Step-by-step explanation:

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2 years ago
How many 3/4 foot pieces of string can be cut from a piece of string 4 1/2 feet long
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3 years ago
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