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3 years ago

Mallory needs to go to the airport. It takes her 120 minutes to get there by car. This is 3 times the time it takes by

Mathematics

1 answer:

seraphim [82]3 years ago

6 0

It will take Mallory 40 minutes to get to the airport by train.

Step-by-step explanation:

Given,

Time taken by car = 120 minutes

Time taken by train = t

According to given statement;

Time taken by car = 3 times time taken by train

$120=3t$

Dividing both sides by 3

$\frac{120}{3}=\frac{3t}{3}\\40=t\\t=40$

It will take Mallory 40 minutes to get to the airport by train.

Keywords: division, multiplication

Learn more about division at:

#LearnwithBrainly

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(8–9a)a=−40+(6–3a)(6+3a)

elena-14-01-66 [18.8K]

Answer:

a=-0.5

Step-by-step explanation:

Distributive property for left side, difference of squares for right side.

8a-9a^2=-40+36-9a^2

-9a^2 cancels out

8a=-4

a=-0.5

8 0

3 years ago

Read 2 more answers

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ladessa [460]

Answer:

y = 9/b

Step-by-step explanation:

by = 9 solved for b yields y = 9/b.

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3 years ago

A house painter completed painting 4 1 2 walls in one hour. At this rate, how many walls can be painted in 8 hours?

disa [49]

Just
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3 years ago

Jeremy has a set of wooden sticks with the length of 10cm, 12cm, and 15cm. Explain whether or not he would be able to form a tri

Wewaii [24]

Answer:

YES, he would be able to form a triangle with these tree sticks

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle is greater than the length of the third side. And this MUST be true with all combinations

10+12 is greater than 15

10+15 is greater than 12

15 +12 is greater than 10

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3 years ago

He transformation function is (x, y) --> (x + 4, y - 2). The starting point is point A at (-5, 6). Step 1: A: (-5, 6) x: , y:

alex41 [277]

Given:

Rule of transformation is $(x,y)\to (x+4,y-2)$ .

Point = (-5,6)

To find:

The missing values in the given steps of transformation.

Solution:

Step 1: A: (-5, 6).

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Step 2: Substitute x and y into $(x+4,y-2):$

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Step 3: Do the math:

Point A' is at (-1 ,4 ).

Therefore, the coordinates of the point (-5,6) after the transformation are (-1,4).

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3 years ago