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2 years ago

A

Mathematics

1 answer:

Juli2301 [7.4K]2 years ago

8 0

Answer:

20 degrees

Step-by-step explanation:

180-120-40=20

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The number of students in high school has been increasing linearly since 1990. In 1997, there were 1125 students and in 2000, th

Law Incorporation [45]

Answer:

(x-1990)×25

Step-by-step explanation:

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3 0

2 years ago

In the picture below. Please help.

mylen [45]

(22,11) it equals the about when you plug it in

5 0

3 years ago

Katerina is a botanist studying the production of pears by two types of pear trees. she noticed that Type A trees produced 20 pe

Ronch [10]

Answer:

120 pears

Step-by-step explanation:

Let the number of pears produced by Type B be x

Number of pears produced by type A=144

According to question

Type A produce 20% more pears than B

x+ x ×20%= 144

x+x× $\frac{20}{100}$ = 144

$\frac{100x+20x}{100}$ = 144

$\frac{120x}{100}$ =144

x= 144× $\frac{100}{120}$

x=120 pears

Hence, Number of pears produced by B= 120 pears

Hence, the correct answer is 120 pears

5 0

2 years ago

about 47% of the 15152 samples researchers found were bacteria. what percent of the samples were not bacteria?

timofeeve [1]

47% of them were bacteria, which means 53% of them were not bacteria.

47+53=100 or 100-47=53

I hope this helps :)

3 0

3 years ago

WILL ANSWER FIRST RIGHT ANSWER AS BRAINIEST

Ket [755]

Answer:

Step-by-step explanation:

Considering the given value of sum of interior angles with exclusion of one to be 1070 then we can write it as

1070=180(n-2) where n is the number of sides required here.

Making n the subject of the formula then following step by step

$n-2=\frac {1070}{180}$

$n=\frac {1070}{180}+2\\n=7.9444444444444\approx 8$

Therefore, the shape is octagon and it has 8 sides.

8 0

2 years ago