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3 years ago

7

Alison has a batch of eggs in the incubator on Monday 2/5 of the eggs hatched by Wednesday 3/10 more of the original batch hatch

ed how many eggs hatched in all

1 answer:

sweet-ann [11.9K]3 years ago

3 0

45 and 1/2 eggs hatched.

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Solve the following problem then write your answer before the number.

Triss [41]

Answer:

1) Rizza's average speed is 27 km/h.

2) The distance between Barretto and Pampanga is 294 km.

3) Aaron's journey was 3.5 hours long.

Step-by-step explanation:

1) Time taken to cove the distance = 20 minutes

60 minutes = 1 hour

So that, 20 minutes = $\frac{20}{60}$ hours

= $\frac{1}{3}$ hours

Distance covered = 9 km

But,

speed = $\frac{distance covered}{time taken}$

Rizza's average speed = 9 ÷ $\frac{1}{3}$

= 9 x 3

= 27 km/h

Rizza's average speed is 27 km/h.

2) Time taken = 3.5 h

the car's average speed = 84 km/h

Distance between Barretto and Pampanga = average speed x time taken

= 84 km/h x 3.5 h

= 294 km

The distance between Baretto and Pampanga is 294 km.

3) The uniform speed implies that Aaron did not accelerate during his journey.

Distance covered = 210 km

uniform speed = 60 km/h

time taken = $\frac{distance covered}{speed}$

= $\frac{210}{60}$

= 3.5 hours

Aaron's journey was 3.5 hours long.

6 0

3 years ago

What are the steps to this?

Nina [5.8K]

Answer:

20

Step-by-step explanation:

This is a right triangle

a² + b² = c²

16² + 12² = x²

256 + 144 = x²

400 = x²

take the square root of both sides

x = 20

3 0

3 years ago

Can someone help me with this question please?

myrzilka [38]

Answer:

x=-3

Step-by-step explanation:

8 0

4 years ago

Which of the following expression represent the distance -2 and 1.5

Natasha_Volkova [10]

See the explanation!

<h2>Explanation:</h2>

As I understand the question, you need the distance between the numbers -2 and 1.5. In order to find this result, let's put these numbers in a number line as indicated below.

To find the distance, set a point on -2 and count how many units you can walk in order to get 1.5, so the result is 3.5 units. Also, this can be written as the following expression using absolute values:

$\mid 1.5-(-2) \mid = \mid 1.5+2 \mid = 3.5$

<h2>Learn more:</h2>

Absolute value: brainly.com/question/13201401

#LearnWithBrainly

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5E2_1%20%7Bx%5E%7B2%7D-8x%2B8%20%7D%20%5C%2C%20dx" id="TexFormula1" title="\in

12345 [234]

Answer:

${ \underline{ \sf{\int\limits^2_1 {x^{2}-8x+8 } \, dx} \: = \: - 1}}$

Step-by-step explanation:

${ \tt{\int\limits^2_1 {x^{2}-8x+8 } \, dx}} \\ \\ = { \tt{[ \frac{ {x}^{3} }{3} - 4 {x}^{2} + 8x ] {}^{2} _{1}}}$

Substitute x with the limits:

$= { \tt{( \frac{ {2}^{3} }{3} - 4( {2)}^{2} + 8(2)) - ( \frac{ {1}^{3} }{3} - 4( {1)}^{2} + 8(1)) }} \\ = { \tt{( \frac{8}{3} - \frac{11}{3} )}} \\ \\ = { \tt{ - 1}}$

4 0

3 years ago