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3 years ago

11

Solve for ax=bx-c; 8x=3x-10.

1 answer:

trasher [3.6K]3 years ago

4 0

Its pretty much just asking you to solve for x given the equation 8x = 3x - 10.
x = -2

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Explain the difference between |-3| and -3?

Ivan

They are opposites. since |-3| has the lines around it, this represents absolute value, which is not positive or negative but how far away the value is from 0. the plain -3 remains the same. |-3| is 3, because it is 3 units away from 0 on the number line.

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3 years ago

Read 2 more answers

142/80 into mixed number

Cerrena [4.2K]

80 goes into 142 once, so one is our whole number. there are still 62 / 80 left, so we reduce this fraction. The answer is 1 $\frac{31}{40}$

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2 years ago

3 Write -1 as a decimal number.

Karo-lina-s [1.5K]

Answer:

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2 years ago

the arithmetic sequence ai is defined by the formula: a1 = -53 ai = ai-1 + 6 find the sum of the first 880 terms in the sequence

maxonik [38]

Answer:

The sum of the first 880 terms in the sequence is 2,273,920.

Step-by-step explanation:

Arithmetic sequence:

The difference between consecutive terms is always the same, called common difference, and the nth term is given by:

$a_{n} = a_0 + (n-1)d$

In which d is the common difference.

Sum of the first n terms:

The sum of the first n terms of an arithmetic sequence is given by:

$S_{n} = \frac{n(a_1+a_n)}{2}$

ai = ai-1 + 6

This means that $d = 6$

In this question:

Sum of the first 800 terms, so $n = 800$

First term is -53, so $a_1 = -53$

The 880th term is:

$a_{880} = -53 + (880-1)*6 = 5221$

Sum

$S_{n} = \frac{880(-53+5221)}{2} = 440(-53+5221) = 2273920$

The sum of the first 880 terms in the sequence is 2,273,920.

4 0

2 years ago

Every month, the bank withdraws $15

ehidna [41]

Answer:

5 months

Step-by-step explanation:

Given :The bank withdraws $15 from Betsy’s checking account as a service fee every month.

To Find : Betsy has budgeted $75 for the next few service fees. For how many months will the service fee be covered?

Solution :

Since we are given that $15 is service fees for 1 month

So. $1 is service fee for month = $\frac{1}{15}$

So, $75 is service fee for months = $\frac{75}{15}$

= $5$

Hence$75 service charge will be covered for 5 months .

6 0

3 years ago