Answer:
x=30°
Step-by-step explanation:
To find the value of x we need atleast 2 other angles, and we do we have one 70, but we need to get another angle from the info given outside the triangle,
Notice, the angle beside 100 can be found by simply subtracting 180-100
(since angles are on a straight line [Supplementary angles]
So, the angle is 80
Now, we know that the angles inside a triangle add up to 180
So basically, to find x:
70+80+x = 180
150+x = 180
x = 180-150
x=30°
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1380
2862
525,000
1,431,212
The number of beetles after 15 weeks = 1,431,212
The total number of beetles = 500
The rate at which the beetle should grow = 70% per week
Therefore 70% of 500= 70/100 × 500
=35000/100
= 350 per week.
That is every week there would be additional 350 beetles
which is = 500 + 350 = 850 beetles
850/500 = 1.7 times what it was the beginning of the week
Therefore in 15 weeks = 500× 1.7^15
= 500 × 2862.4231
= 1,431,212
Learn more about population here:
Answer:1,431,212
Step-by-step explanation:
took the test
Report this answered this on accident ........
Answer:
The number of new books sold = 10
The number of used books sold (u) = 15
The number of magazines sold(m) = 20
Step-by-step explanation:
Let us assume the number of new books = n
So, the number of used books sold (u) = New books sold + 5 = n + 5
Also, the number of magazines sold (m) = 2 x ( Number of new books sold)
= 2 n
⇒ u = n + 5, m = 2 n
Here, the cost of each new book n- = $12
So, the cost of n new books = n x ($12) = 12 n
the cost of each used book u = $8
So, the cost of u = (n+ 5) used books = n+5 x ($8) = 8 n + 40
the cost of each magazine m = $5
So, the cost of m = (2n ) magazines = 2n x ($5) = 10 n
Also, total earnings = $340
⇒ 12 n + 8n +40 + 10 n = 340
or, 30 n = 300
or,n = 300/30 = 10
Hence the number of new books sold = n = 10
The number of used books sold (u) = n + 5 = 15
The number of magazines sold = m = 2 n = 20
Answer:
14
Step-by-step explanation:
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Answer:
Angle 1 = 80 (by definition)
Angle 3 = 180 - 80 = 100
Angle 4 + Angle 2 = 90
Also, Angle 2 = 40 (by definition)
So Anglee 4 = 50