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Nadusha1986 [10]
3 years ago
14

See screenshots for question and answer choices.

Mathematics
2 answers:
yawa3891 [41]3 years ago
3 0

Answer:

I belive its 300

Step-by-step explanation:

Brainlist?

Elanso [62]3 years ago
3 0
375cm

You work out the area of the rectangle by doing 30x10= 300

Then you work out the area of the triangle (basexheight) divided by 2.
10x15=150
150/2=75

300+75=375.

I’m not sure if this is right but I hope it helps.
You might be interested in
Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. Whe
Rama09 [41]

You can see how this works by thinking through what's going on.

 

In the first year the population declines by 3%.  So the population at the end of the first year is the starting population (1200) minus the decline: 1200 minus 3% of 1200.  3% of 1200 is the same as .03 * 1200.  So the population at the end of the first year is 1200 - .03 * 1200.  That can be written as 1200 * (1 - .03), or 1200 * 0.97

 

What about the second year?  The population starts at 1200 * 0.97.  It declines by 3% again.  But 3% of what???  The decline is based on the population at the beginning of the year, NOT based no the original population.  So the decline in the second year is 0.03 * (1200 * 0.97).  And just as in the first year, the population at the end of the second year is the population at the beginning of the second year minus the decline in the second year.  So that's 1200 * 0.97 - 0.03 * (1200 * 0.97), which is equal to 1200 * 0.97 (1 - 0.03) = 1200 * 0.97 * 0.97 = 1200 * 0.972.

 

So there's a pattern.  If you worked out the third year, you'd see that the population ends up as 1200 * 0.973, and it would keep going like that.

 

So the population after x years is 1200 * 0.97x

5 0
3 years ago
Have at the end btw and help pls ​
nirvana33 [79]

Answer:

he has 1,208 mangoes left

5 0
3 years ago
Read 2 more answers
A=5 btw <br><br> Please help btw I’m in 7th Grade
AlexFokin [52]

Answer:

1. a =3(2a) +5 and a= 6a+5

2. 47=3(2times 7) +5 and 47 =6 time 7 plus 5

Step-by-step explanation:

5 0
2 years ago
Make r the subject of the formula t= r
Evgen [1.6K]
I hope this helps you



t=r/r-3



t. (r-3)=r



t.r-3t=r


t.r-r=3t



r (t-1)=3t



r=3t/t-1
3 0
3 years ago
What is 27.35 expressed as a mixed number?
zheka24 [161]
Firstly, you know you have 27 (35/100)

Make this an improper fraction.   2735/100

Simplify this as much as you can.  547/20

Find how many times 20 will go into 540, and use the 7/20 as the fraction part of your mixed number.

Now, make as many whole as you can and states your remaining. 27 7/20


4 0
3 years ago
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