How do I start the second part of this problem?

Mathematics

1 answer:

hodyreva [135]3 years ago

4 0

So, for the second problem, they've reversed the situation: Now we have the temperature, and we have to think backwards to figure out the number of cricket chirps (in five minutes)!

We ended up with 60 degrees (somehow). Well, let's subtract 37. That gives us 23. What does this number mean? It is the number of times the cricket chirps in 15 seconds. But we want five minutes... I bet you can take it from here... :)

You might be interested in

Leo ordered 79.25 pounds of cookies for a party. When that order came,he received 76.875 pounds of cookies. How many pounds of c

lara31 [8.8K]

2.375 pounds. Just take 79.25 and subtract 76.875 and you get your results.

7 0

3 years ago

8 + 3 • 5 - 20 ÷ 4 = ?<br><br> Please use the order of operations

nalin [4]

We must multiply and divide before adding and subtracting here. Working from left to right, we get:

8 + 15 - 5 = ?

8 + 10 = ?

18 (answer)

8 0

3 years ago

Read 2 more answers

This composite shape is a rectangle with a semicircle attached on one end. The diameter of the semicircle is 6 feet.

Ugo [173]

As we can see on the picture we have a rectangle and half of circle.

The areas for half circle and rectangle are:

$A_{rectangle}=a\cdot b \\A_{halfcircle}=\frac{A_{circle}}{2}=\frac{\pi r^2}{2}$

The area of the figure is the sum of the area of half circle and rectangle. Also the height of a rectangle (6ft) is a diameter of a half circle therefore the radius of half circle is 6ft ÷ 2 = 3ft.

Now we calculate the areas.

$A_{rectangle}=10\cdot 6=\underline{60} \\A_{halfcircle}=\frac{3.14\cdot3^2}{2}=\underline{14.13} \\A_{total}=A_{rectangle}+A_{halfcircle} =60+14.13=\boxed{74.13\approx74}$