If sin 30° = 1/2 then which statement is true

Lilly made a 89 on her Math test. The test had 26 questions, how many questions did she miss?

anygoal [31]

She missed 3 questions,

11/100 equals x/26
^set up this proportion
you get 286 equals 100x
and x equals 2.86

round this to 3 questions

to check your work, do 23/26

6 0

3 years ago

7 divided by 20 is what answers

Montano1993 [528]

Hello!

The Correct Answer to this is that 7 divided by 20 or 7/20 equals:

"7/20 = 0.35"

Explanation:

Since you are trying to find equivalent values for 7/20, you can make two proportions and set them equal to each other. The following states that "7 out of 20 is equal to some amount out of 100."

7/20=x/100

Solve by cross multiplying:

20x=700

Divide both sides by 20 to isolate x:

x=35 Therefore, 7/20=35/100. This is the same as saying 35%, since by definition "per" means out of, and "cent" means hundred. To make it into a decimal just move the decimal place two digits to the left, such that 35.00 becomes 0.35, and 100.00 becomes 1. Then it is simply 0.35/1, or 0.35

Hope this Helps! Have A Wonderful Day! :)

5 0

3 years ago

Read 2 more answers

Um how am I supposed to answer someone give me an example

sweet [91]

Answer:

I am allergic to pollen is causes me to become congested and my eyes to become watery nothing too severe. -Your friend, Bill Cipher

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Based on the graph, what is the dependent variable, the equation relating the two variables, and how far will the dragonfly trav

ivann1987 [24]

Answer:

<h2>The dependent variable is distance, the equation is y = 20x, and the dragonfly will travel 480 miles.</h2>

Step-by-step explanation:

According to the graph, the dependent variable is Distance in miles, because it's on the vertical axis. Additionally, the independent variable is time in hours, because it's on the horizontal axis. However, you always put time as independent, because nothing affects time.

To find the equation, we just need to find the slope, using two points (0,0) and (2,40).

$m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }=\frac{40-0}{2-0}=20$

Therefore, the equation is $y=20x$ , which shows a direct proportion between variables.

Now, in 24 hours, it would travel

$y=20(24)=480$

It would travel 480 miles.

Therefore, the right answer is the second choice.

8 0

3 years ago

Read 2 more answers

The Rivertown city council is attempting to choose one of four sites (A, B, C, or D) as the location for its new emergency facil

Vikki [24]

Answer:

SITE A

Step-by-step explanation:

Given :

proposed-site Area-Served

1 2 3 4

A 5.2 4.4 3.6 6.5

B 6.0 7.4 3.4 4.0

C 5.8 5.9 5.9 5.8

D 4.3 4.8 6.5 5.1

Area 1 2 3 4

Number-runs 150 65 175 92

Computing the weighted average for the 4 sites :

Site A:

((150*5.2) + (65*4.4) + (175*3.6) + (92*6.5)) / (150 + 65 + 175 + 92)

= 2294 / 482

= 4.7593

Site B:

((150*6.0) + (65*7.4) + (175*3.4) + (92*4.0)) / (150 + 65 + 175 + 92)

= 2344/ 482

= 4.863

Site C:

((150*5.8) + (65*5.9) + (175*5.9) + (92*5.8)) / (150 + 65 + 175 + 92)

= 2819.6/ 482

= 5.850

Site D:

((150*4.3) + (65*4.8) + (175*6.5) + (92*5.1)) / (150 + 65 + 175 + 92)

= 2563.7/ 482

= 5.319

From the weighted average response time computed for the different sites ;

The best location for the emergency facility would be one with the least average response time; which is SITE A.

7 0

3 years ago