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3 years ago

Solve for x in the literal equation -20=xy +z.

Mathematics

1 answer:

erastovalidia [21]3 years ago

5 0

Answer:

-(20+z)/y = x

Step-by-step explanation:

-20=xy +z

Subtract z from each side

-20 -z = xy+z-z

-20 -z = xy

Divide each side by y

(-20 -z)/y = xy/y

Factor out a negative

-(20+z)/y = x

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The product of x and 6 is less than or equal to -17.

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The answer is:
6x < -17
But the less than sign has a line underneath.

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4 years ago

During September an October, a total of 825,150 visitors went to Grand Canyon National Park. If 448,925 visitors went to the par

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4 years ago

In the diagram below, OPis circumscribed about quadrilateral ABCD. What is the value of x?

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Answer:

C. 82

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3 years ago

Consider the sequence: 3, 8, 13, 18, 23, ...The recursive formula for this sequence is:an = an-1 + 5In a COMPLETE sentence, expl

Leona [35]

Answer:

see the explanation

Step-by-step explanation:

we know that

In an Arithmetic Sequence the difference between one term and the next is a constant called the common difference

we have

$3, 8, 13, 18, 23,...$

Let

$a_1=3\\a_2=8\\a_3=13\\a_4=18\\a_5=23\\$

$a_2-a_1=8-3=5$ ------> $a_2=a_1+5$

$a_3-a_2=13-8=5$ ------> $a_3=a_2+5$

$a_4-a_3=18-13=5$ ------> $a_4=a_3+5$

$a_5-a_4=23-18=5$ ------> $a_5=a_4+5$

the common difference between consecutive terms is equal to 5

we can rewrite the formula as

$a_n=a_(_n_-_1_)+5$ -----> given formula

For n > 1

where

an is the term that you want to find (position n)

a(n-1) is the known term position (n-1)

Find a_8

For n=8

$a_8=a_(_8_-_1_)+5$

$a_8=a_7+5$

I need to know a_7

we know that

The general formula for arithmetic sequence is equal to

$a_n=a_1+d(n-1)$

where

an is the term that you want to find (position n)

a_1 is the first term

d is the common difference

n is the number of terms

we have

$a_1=3$

$d=5$

substitute

$a_n=3+5(n-1)$

$a_n=3+5n-5$

$a_n=5n-2$

For n=8

$a_8=5(8)-2$

$a_8=38$

5 0

3 years ago

Is (5,6) a solution to this system of equations: 14x + 13y = -8 19x + 14y = 11

rusak2 [61]

Answer:

Step-by-step explanation:

hello : 14x + 13y = -8

19x + 14y = 11

test : put x=5 and y=6

14(5)+13(6)≠ -8

conclusion : (5 , 6) is not solution

4 0

3 years ago

Solve for x in the literal equation -20=xy +z.​

Solve for x in the literal equation -20=xy +z.