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Ierofanga [76]
3 years ago
5

Seven less than eight times a number is -12

Mathematics
2 answers:
xxMikexx [17]3 years ago
7 0

Answer:

8-7n=-12

Step-by-step explanation:

aliina [53]3 years ago
5 0

Answer:

19/8

Step-by-step explanation:

8x-7=-12

8x=19

x=19/8

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ruslelena [56]

Answer:

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Step-by-step explanation:

5 0
3 years ago
the 43rd term of an arithmetic sequence is -671 and the 52nd term is -806. find the first term and the common difference.
Bond [772]

Answer:

First term = -41.

Common difference = -15.

Step-by-step explanation:

nth term: an = a1 + (n - 1)d  where a = first term and d = the common difference.

-671 = a1 + (43 - 1)d

-806 = a1 +(52 - 1)d

-671  = a1 + 42d

-806 = a1 + 51d

Subtracting ( to eliminate a1):

-671 - (-806) = 42d - 51d

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d = -15

Substitute for d in the first equation:

-671 = a1 + 42*-15

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3 0
3 years ago
a food truck sells salads for 6.50 each and drinks for 2.00 each. The food truck's revenue from selling a total of 209 salads an
kati45 [8]
S+d=209
d=209-s
6.5s+2d=836.5
6.5s+2(209-s)=836.5
6.5s+418-2s=836.5
4.5s+418=836.5
4.5s=418.5
s=93

There were 93 salads sold that day.
4 0
3 years ago
F-7/g = h for f<br>solve for f
gregori [183]
(f - 7)/g = h
f - 7 = gh
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3 years ago
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alekssr [168]

Answer:

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Step-by-step explanation:

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