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ASHA 777 [7]
3 years ago
13

There are 9 boys to every 10 girls in a particular high school. there are 2622 students at the school. how many girls are there?

Mathematics
1 answer:
VashaNatasha [74]3 years ago
8 0
Boys : Girls
  9     :   10

-------------------------------------------
Find total parts :
-------------------------------------------
Total Parts = 9 + 10 = 19

-------------------------------------------
Find 1 Part :
-------------------------------------------
19 parts = 2622 
1 part = 2622 ÷ 9
1 part = 138

-------------------------------------------
Find 10 parts (girls) :
-------------------------------------------
1 part = 138
10 parts = 138 x 10
10 parts = 1380

--------------------------------------------------------------------------------------
Answer: There are 1380 girls.
--------------------------------------------------------------------------------------
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Step-by-step explanation:

The x-intercept is the point where the graph touches the x-axis, which means y=0. So let's set y=0 in your equation, and we receive

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Since BD bisects angle ABC, that means angle ABD and angle CBD are equal to each other. With that set up the equation to solve for x like this:

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Now substitute that to ABD
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Finally angle ABC will be double the amount of ABD or CBD so 65 times 2 is 130.

ANSWERS: (angles)
ABD and CBD: 65
ABC: 130

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