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2 years ago

Evaluate this expression if r = 2, t = -7, and u = -5 3(r+u)

Mathematics

2 answers:

andreev551 [17]2 years ago

4 0

Answer:

the answer is -9

Step-by-step explanation:

3(2 - 5)

6 - 15

-9

aleksley [76]2 years ago

4 0

<h2><u>Answer:</u></h2><h2> $\boxed{-9}$ </h2><h2 /><h2><u>Solution Steps:</u></h2>

______________________________

<h3>1.) Fill in the given variables into a new equation: </h3>

$r=2$

$t=-7$

$u=-5$

$3(2+(-5))$

<em> - We do this since it gives us the missing variables, which makes it so we can solve it like any regular equation. </em>

<u>Equation at the end of Step 1:</u>

$3(2+(-5))$

<h3 /><h3>2.) Subtract 5 from 2:</h3>

$2-5=-3$

<em> - We do this because we need 1 number, not 2 at the end. </em>

<u>Equation at the end of Step 2:</u>

$3(-3)$

<h3 /><h3>3.) Multiply 3 and −3:</h3>

$3$ × $-3=-9$

<h3 />

______________________________

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Line segment ab has endpoints a(9, 3) and b(2, 6). find the coordinates of the point that divides the line segment directed from

Dominik [7]

When we are to divide the line segment such that the ratio is 1:2, there are actually 3 parts of the segment. First, we determine the distance between the coordinates and divide the distance by 3. Then, we add the quotient to the x-coordinate.

x-coordinate: (2 - 9) / 3 = -7/3
y-coordinate: (6 - 3 ) / 3 = 1

Adding them to the coordinates of a,
x - coordinate: (9 - 7/3) = 20/3
y - coordinate: (3 + 1) = 4
Thus, the coordinates are (20/3, 4).

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3 years ago

A taxi driver had 27 fares to and from the airport last Monday. The price for a ride to the airport is $14, and the price for a

OLga [1]

Answer:

(15, 12)

Step-by-step explanation:

Let's generate two systems of equations that fit this scenario.

Number of trips to the airport = x

Number of trips from the airport = y

Total number of trips to and from the airport = 27

Thus: