3 years ago

X 10 Z 20 find x y and z

Mathematics

1 answer:

Reil [10]3 years ago

8 0

Answer:

y is 30

Step-by-step explanation:

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Starting from the same place, Karina walks due west and Lucas walks due east. On the number line, 0 represents their starting po

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6 0

4 years ago

Find a1 if Sn = 89,800, r = 3.4, and n = 10. Round to the nearest hundredth if necessary.

xxMikexx [17]

Answer:

$a_1=1.04$

Step-by-step explanation:

We have a geometric sequence with:

$Sn = 89,800$ , $r = 3.4$ , and $n = 10$

Where

Sn is the sum of the sequence

r is the common ratio

$a_1$ is the first term in the sequence

n is the number of terms in the sequence

The formula to calculate the sum of a finite geometric sequence is:

$S_n=\frac{a_1(1-r^n)}{1-r}$

Then:

$89,800=\frac{a_1(1-(3.4)^{10})}{1-3.4}$

Now we solve for $a_1$

$89,800(1-3.4)=a_1(1-(3.4)^{10})$

$a_1=\frac{89,800(1-3.4)}{1-(3.4)^{10}}\\\\a_1=1.04$

4 0

3 years ago

2x - 13 = 13 - 8x + 14

Strike441 [17]

2x-13+13=13-8x+14+13
2x=40-8x
2x+8x=40-8x+8x
10x=40
X=4

6 0

3 years ago

Translate the sentence into an equation. Nine more than the quotient of a number and 7 is equal to 3 . Use the variable y for th

pantera1 [17]

Hi!

Nine more = 9 +
Quotient of a number and 7 = y/7
Equal to three = = 3

Put it together:

9 + y/7 = 3
^ the answer

Bonus points if you can tell me what y equals ;)

Hope this helps! :)

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3 years ago

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mixer [17]

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Step-by-step explanation:

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4 years ago

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