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ki77a [65]
3 years ago
9

There are 25 students in a class, 40 percent of whom are girls. If the average

Mathematics
1 answer:
svetoff [14.1K]3 years ago
5 0

Answer:

135

Step-by-step explanation:

120 + 150 = 270

270 ÷ 2 = 135

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Two lines intersect to form angles 1, 2, 3, and 4 as given. The measure of ∠3 is 38°. What is the measure of ​∠2​ ?
ss7ja [257]

Answer:

142° is the measure of angle 2.

Step-by-step explanation:

When two lines intersect, they make four angles. The angles facing each other are equal.

Let's say that two lines a and b intersected each other to make angles 1,2,3 and 4 respectively.

The measure of angle 3 = 38 degrees.

We know that the angle 1 is against angle 3 and is equal to 38.

Also Angle 2 and Angle 4 are also against each other and are equal let's say equal to x degrees.

Now, the sum of all four angles = 360 degrees

∠1 + ∠2+ ∠3 + ∠4 = 360°

38° + x + 38° + x = 360°

2x = 360° - 76°

2x = 284°

x = 142°

Hence, ∠2 = 142°

3 0
3 years ago
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Why is determining food cost percentage important?
Studentka2010 [4]

Answer:

Food cost determines a restaurant's profitability.

Step-by-step explanation:

If you have any questions feel free to ask in the comments - Mark

Also when you have the chance please mark me brainliest.

8 0
3 years ago
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A train leaves at 11:32 and arrives at 13:24. It travelled at an average speed of 85 km/h.
Blababa [14]

Answer:

<h2>33.2Km</h2>

Step-by-step explanation:

<h3>Time used for journey = </h3>

13 : 24 - 11 : 32 = 1 : 92

1 : 92 = 1 hour 92 minutes

1 hour 92 minutes = 2 hours 32 minutes

<h3>changing 32 minutes to hours</h3>

1 h = 60 min

x = 32 min

x= 32 /60

x= 8/15 hours

<h3>Adding the 2hours to 8/15 hours</h3>

8/15 h + 2 h = 38 / 15

<h3>Using formula for distance</h3>

Distance = Speed × Time

Distance = 85km / h × 38 /15 h

Distance = 33.15 km

To 1DP = 33.2

3 0
2 years ago
Name two segments the represent radii.be sure to write the word segment and then use two letters to identify the radii
SCORPION-xisa [38]

Answer:

k

Step-by-step explanation:

3 0
3 years ago
This is the question.
umka21 [38]

Answer:

Step-by-step explanation:

as you can see they want you to find the total out of the gallons so the first thing you want to do is get 1,688 and 1,297 and multiply both of them the total is 2189336 so 1,688 x 1,297=289336

4 0
3 years ago
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