Five times a number is the same as 30 more than 8 times the number. find the number.

if n is "the number," which equation could be used to solve for the number?

3n = 30
5n + 8n = 30
5n = 8n + 30

 the correct option is

(C)

Step-by-step explanation:  Given that five times a number is the same as 30 more than 8 times the number.

We are to find the number.

Also, if the number is denoted by n, then we are to select the equation that could be used to solve for the number.

Since n is the given number, so five times the number is written as

Also, 30 more than eight times the number is written as

Since both the expressions are same, so we get

Thus, the required number is -10 and the the equation that is used to solve for the number is

Option (C) is CORRECT.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

2x + 8

step-by-step explanation: