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3 years ago

10

The seventh grade band has 15 drummers and 12 trumpet players. The eighth grade band band has 10 drummers and 8 trumpet players.

Do the ratios form a proportion

1 answer:

defon3 years ago

7 0

Yes 7 has fifty percent more

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Using the formula d = r * t, calculate how far Jim would drive if he drove 60 miles per hour for 5 hours.?

Lapatulllka [165]

Answer:

Step-by-step explanation:

8 0

3 years ago

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yanalaym [24]

Answer:

The answer is a² .

Step-by-step explanation:

You have to substitute x and y into the expression :

$let \: x = a \cos(θ) \\ let \: y = a \sin( θ)$

${x}^{2} + {y}^{2} = {(a \cosθ )}^{2} + {(a \sinθ) }^{2}$

${x}^{2} + {y}^{2} = {a}^{2}( {cos}^{2}θ) + {a}^{2} ({sin}^{2}θ)$

Next, you have to apply Basic Trigonometric Identity :

${sin}^{2} θ + {cos}^{2} θ = 1$

${x}^{2} + {y}^{2} = {a}^{2} ( {cos}^{2} θ + {sin}^{2} θ)$

${x}^{2} + {y}^{2} = {a}^{2} (1)$

${x}^{2} + {y}^{2} = { a}^{2}$

8 0

3 years ago

The sum of 43.9 and a number is 49.65, as shown below. What number should go in the box to complete the addition problem? 43.9 p

Ber [7]

43.9 + n = 49.65
43.9-43.9 + n = 49.65 -43.9
n = 5.75

6 0

3 years ago

Hello guys, im stuck in this last question, please tell me this answer, im very sick and this assigment is due in 14 minutes, pl

Bond [772]

Answer:

If the geometric shape is classified as a quadrilateral and all angles are equal then each angle as a right angle measuring at 90 degrees.

Step-by-step explanation:

I hope this helps!

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2 years ago

Shasta is going to her best friend's house for dinner. Her mother says she needs to be back in 2 and a half hours. If she leaves

emmasim [6.3K]

Answer:

<em>she will be back at 7:30pm</em>

Step-by-step explanation:

From the question we are given

Time that Shasta leaves for her best friend place = 5:00pm

If she is to come back after 2 and a half hour, hence we will have to add 2hr 3ominutes to the time she left to know the time she will be back as shown:

She will be back at 5:00 + 2hr 30min = 7:30pm

<em>Hence she will be back at 7:30pm</em>

5 0

3 years ago