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rosijanka [135]
3 years ago
12

What is 2/7 of 2,470

Mathematics
1 answer:
leva [86]3 years ago
5 0
705.71248 becuse you divide then multiply

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10x-5y=25 solve for y
Pavlova-9 [17]
<span>10x-5y=25 solve for y
so
10x - 5y = 25
5y = 10x - 25
  y = 2x - 5

hope it helps</span>
8 0
3 years ago
Bisects ∠EDG. Find the value of x
True [87]

Answer:

where is the question? please attatch the angle

6 0
3 years ago
3(4-2x)=-2x<br> will make brainiest to the first two people that answer correctly with explanation
ASHA 777 [7]

Answer:

x = 3

Step-by-step explanation:

First, distribute 3 into the parenthesis:

3(4 - 2x) = -2x

12 - 6x = -2x

Next, combine your x variables by adding +6x to both side:

12 - 6x = -2x           (-6x and +6x cancel out)

   +6x    +6x

12 = 4x                     (divide 12 by 4 to get x by itself)

/4     /4

x = 3

3 0
3 years ago
How do i calculate? All the way to s_75. It’s so long
mina [271]

Answer:

  -675

Step-by-step explanation:

The sum can be broken into parts that you know. Here, one of those parts is the sum of numbers 1 to n. That sum is given by n(n+1)/2.

\displaystyle S_{75}=\sum\limits_{n=1}^{75}{(67-2n)}=\sum\limits_{n=1}^{75}{67}-2\sum\limits_{n=1}^{75}{n}\\\\=75\cdot 67-2\dfrac{75(75+1)}{2}=75(67-76)\\\\=\bf{-675}

__

Another way to do this is to realize the sequence of numbers is an arithmetic sequence with a first term of 65 and a last term of 67-2·75 = -83.

The sum of an arithmetic sequence is found by multiplying the number of terms by their average value. Their average value is the average of the first and last terms.

The average value of those 75 terms is (65 +(-83))/2 = -9, so their sum is ...

  75(-9) = -675

7 0
3 years ago
Please helppppppp ASAP
pshichka [43]

Answer:

I think it is C

Step-by-step explanation:

5 0
2 years ago
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