In an orchestra the ratio of trombones to violas is 1 to 3.a. There are 9 violas. write a proportion that gives the number t of trombones in the orchestra.
b. How many trombones are in the orchestra? Please help, I'm in 8th grade! (:Thank youu..

Answers

Answer 1

Answer:

Answer:

Givens

The ratio of trombones to violas is 1 to 3, that is, for every trombone there are 3 violas. $(t)/(v)=(1)/(3)$

So, if there are 9 violas, the number of trombones is three, because 9 violas represents a triple proportion, which means we need to multiply by 3 to find the number of trombones according to the given proportion.

$(t)/(9)=(1)/(3)\nt=(9)/(3)\n t=3$

The expression that gives the number of trombones is

$(t)/(9)=(1)/(3)$

The number of trombones is 3, there are 3 trombones while there are 9 violas.

Answer 2

Answer: The proportion would be 1/3 and x/9. Cross multiplication creates 3x=9. Divide both sided by three, and there are 3 trombones in the orchestra.

Related Questions

17. Write the slope-intercept form of the equation of the line though the given point with the given slope.18.Find the slope of a line perpendicular to each given line. Show work please
PLEASE HELP ME WITH THE PROBLEM ASAP
5) Which border states permitted slavery but stayed loyal to the Union during the Civil War?a. lowa, Illinois, Indiana, Ohiob. Maryland, Delaware, Kentucky, Missouric. South Carolina, Mississippi, Florida, Alabamad. Virginia, North Carolina, Tennessee, Arkansas
Solve for x in the equation 6x = 42.A. x = 7 B. x = 48 C. x = 36 D. x = 6
Sophie wrote odd numbers on her paper.what is a number sophie did not write

Take twice the number from the product of 7 and the number, the result is 32

Answers

twice means 2 times
product means multiply
result means equals

2 times (7 times number)=32
divide both sides by 2
7 times number=16
divide both sidse by 7
number=16/7

Find the lateral area of the right prism with height 0.3 dm, if the base of the prism is: Parallelogram with sides of 6 cm and 20 mm

Answers

The lateral area of the parallelogram prism is 0.048 m²

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

0.3 dm = 0.3 m, 6 cm = 0.06 m, 20 mm = 0.02 m, hence:

The lateral area of the right prism is given by:

Lateral area = 2(0.06 * 0.3) + 2(0.02 * 0.3) = 0.048 m²

The lateral area of the parallelogram prism is 0.048 m²

Find out more on equation at: brainly.com/question/2972832

Answer:

48 cm

Step-by-step explanation:

H=0.3dm, 0.3dm=30cm

20mm=2cm

La=16*3=48cm

Mike recently increased the size of his Jeep tires from the original 29 inch diameter to the larger 33.73 inch diameter. If Mike didn't recalibrate his speedometer, how fast is he really going on the new tires when his speedometer shows he is traveling 60 mph?a. 54.5 mph
b. 62.1 mph
c. 66.1 mph
d. 69.8 mph

Answers

Answer:

d. 69.8 mph

Step-by-step explanation:

Since, the ratio of the diameter of the tyre of a vehicle and its speed must be constant,

Given,

The original diameter of the tyre = 29 inch,

Original speed = 60 mph,

Thus, the ratio of diameter and the speed of the vehicle = $(29)/(60)$

New diameter of the tyre = 33.73 inch,

Let x be the new speed of the vehicle = $(33.73)/(x)$

$\implies (29)/(60)=(33.73)/(x)$

$\implies x=(33.73* 60)/(29)=69.79\approx 69.8\text{ mph}$

Hence, the actual speed of the vehicle would be 69.8 mph.

OPTION D is correct.

What is the closed linear form of the sequence of the negative even integers starting with -2?A) an = 2n
B) an = -2n
C) an = -2 - n
D) an = -2 + 2n

Answers

Hello,

n=1,2,3,.... and not 0

Answer B a(n)=-2*n

Answer: It's B i did usa test prep and got it right

Step-by-step explanation:

Evaluate x-(-11) for x = 14.

Answers

Step-by-step explanation:

x-(-11)

= x+11

= 14+11

= 25

The answer for this question is 25

470 + how many tens = 1000? Tick the correct option A) 530 B) 430 C) 53

Answers

Answer: A) 530

Step-by-step explanation:

1000-470=530

Final answer:

To find out how many tens are needed to add to 470 to equal 1000, subtract 470 from 1000 and divide the difference by 10.

Explanation:

To find out how many tens are needed to add to 470 in order to equal 1000, we need to subtract 470 from 1000. This will give us the difference, which is 530. Since each ten is worth 10, we divide the difference by 10 to find out how many tens are needed. So, 530 divided by 10 equals 53. Therefore, the correct option is C) 53.