15 poinstss plllz help Remember, the farther to the left a number is graphed on a number line, the it is. The farther to the right a number is graphed on a number line, the it is. Inequalities can be graphed on a number line. The numbers included on the graph represent values in the solution set. Reciprocals Reciprocals are multiplicative inverses in which both numbers have the same sign and can be multiplied together to equal . You can divide by a rational number or multiply by the to get the same answer. Positive and Negative Numbers When adding numbers with the same sign, add the absolute value of both numbers and the sign that is on both numbers. When adding numbers with different signs, find the difference between the absolute value of the numbers and take the sign of the number with the absolute value. When subtracting positive and negative numbers, you can add the opposite sign of the second number in the equation to the first to find the difference. When multiplying or dividing positive or negative numbers, if the signs of the numbers are the same, then the answer will be . When multiplying or dividing positive or negative numbers, if the signs of the numbers are different, then the answer will be .

i dont know men

step-by-step explanation:

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =