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2 years ago

25 BRAINLIEST FOR WHOEVER ANSWERS FIRST

Mathematics

1 answer:

SSSSS [86.1K]2 years ago

5 0

Answer:

Lara's average speed :

average speed = total distance / total time

=> 8 miles / 2.5 hours

=> 3.2 mph

Tim's average speed :

= total distance / total time

= 12 miles / 3.5 hours

= 3.43 mph

therefore,

Tim's average speed (3.43 mph) is greater.

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Solve the system by substitution -5x+3y=2 y=2x

serious [3.7K]

Answer:

(x,y)=(0,0)

Step-by-step explanation:

Simplify -5x+3y=2x

2y=2x

multiply both sides -7x+3y=0

-x+y=0

eliminiate one vaiable

4 0

1 year ago

A factory adds three red drops and two blue drops of coloring to white paint to make each pint purple The factory will make 50 g

Radda [10]

30 gallons of red paint & 20 gallons of blue paint

Step-by-step explanation:

The ratio of red to blue paint drops to make purple paint is 3 : 2

Therefore the total number of gallon, in this case, fifty (50) is equivalent to the total of two ratios (which is 3 + 2 5)

If 5 in the ratio = 50; what about 2 & 3

5 = 50

2 = x

After cross multiplication;

5x = 50 * 2

X = 100/5

X = 20

The same for ratio 3

5 = 50

3 = y

5y = 50 * 3

y = 150/5

y = 30

The answer is therefore; 30 gallons of red paint to 20 gallons of blue paint

Learn More:

For more on ratios check out;

brainly.com/question/11662922

#LearnWithBrainly

7 0

2 years ago

Which one is the term that does NOT have a like term Explain 9x + 5y + 8 + 3x + 5

Delicious77 [7]

Answer:

Step-by-step explanation:

because there are no other terms with a y

8 0

2 years ago

Which of the following can be used to calculate the volume of water inside the fish bowl?

Lunna [17]

The volume of a sphere can be calculated as

$V=\frac{4}{3}\pi r^3$

Where r is the radius of the sphere

We want to calculate half of the volume, then we must divide that volume by 2

$V^{\prime}=\frac{1}{2}\frac{4}{3}\pi r^3$

Now we must find the radius of our sphere, the segment AB is the diameter of the sphere, and the radius is half od the diameter, then

$r=\frac{AB}{2}=\frac{12}{2}=6$

Let's put it into our equation

$\begin{gathered} V^{\prime}=\frac{1}{2}\left(\frac{4}{3}\right)(\pi)(r)^3 \\ \\ V^{\prime}=\frac{1}{2}\left(\frac{4}{3}\right)(\pi)(6)^3 \end{gathered}$

The problem says to use

$\pi\approx\frac{22}{7}$

Then

$V^{\prime}=\frac{1}{2}\left(\frac{4}{3}\right)\left(\frac{22}{7}\right)(6)^3$

Final answer:

The formula that can be used to calculate the volume of water inside the fish bowl is

$V=\frac{1}{2}\left(\frac{4}{3}\right)\left(\frac{22}{7}\right)(6)^3$

8 0

8 months ago

Find the value of x.

posledela

Answer:

x = 50°

Step-by-step explanation:

2x = 140 - 40

2x = 100

x = 100/2

x = 50°

8 0

2 years ago

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*25 BRAINLIEST FOR WHOEVER ANSWERS FIRST*

25 BRAINLIEST FOR WHOEVER ANSWERS FIRST