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evablogger [386]
3 years ago
15

Explain how you did it!

Mathematics
1 answer:
Sergio [31]3 years ago
5 0
Ratio s 3:8
other one is x:12

3:8=x:12
3/8=x/12
times both sides by 12
36/8=x
4 and 4/8=x
4.5=x
4 and 1/2=x

J is answer
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Alyssa plans to borrow $3,180 at 6.5% for 3.5 years . Find the amount of simple interest she should expect to pay.
irga5000 [103]

Answer:

784.16

Step-by-step explanation:

use the formula for simple interest =

P(1+r)^t

so

3180(1.065)^3.5 - 3180

3 0
2 years ago
Find the value of m. 4(m-2) = 24
slega [8]

4(m-2)=24

4m-8=24 distributive property

add 8 to each side

4m=32

divide each side by 4

m=8

4 0
2 years ago
Read 2 more answers
What are the coordinates of point B on \overline{AC} such that AB = 1/2 BC
marta [7]

Answer:

C. B(x,y) = \left(3,-\frac{16}{3} \right)

Step-by-step explanation:

Let A(x,y) = (6,-7), B(x,y) = (x,y) and C(x,y) = (-3,-2). From statement we know that AB = \frac{1}{2}\cdot BC, which is equivalent to the following linear algebraic formula:

B(x,y) -A(x,y) = \frac{1}{2}\cdot [C(x,y)-B(x,y)] (1)

B(x,y)-A(x,y) = \frac{1}{2}\cdot C(x,y)-\frac{1}{2}\cdot B(x,y)

\frac{3}{2}\cdot B(x,y) = \frac{1}{2}\cdot C(x,y)+A(x,y)

B(x,y) = \frac{1}{3}\cdot C(x,y) +\frac{2}{3}\cdot A(x,y) (2)

Then, the coordinates of point B on AC are:

B(x,y) = \frac{1}{3}\cdot (-3,-2)+\frac{2}{3}\cdot (6,-7)

B(x,y) = \left(-1, -\frac{2}{3}\right)+\left(4, -\frac{14}{3} \right)

B(x,y) = \left(3,-\frac{16}{3} \right)

Which means that correct answer is C.

5 0
3 years ago
78% of students in the 7th grade
irina1246 [14]

Answer:

77

Step-by-step explanation:

percentage         Students

78%--------------     -273

100%--------------      ---X

(100x273)/78 = 350 students in class so

how many did  not pass?​

350-273 = 77 students not pass

6 0
3 years ago
Read 2 more answers
Mrs Tay had 425 cookies at first.
yKpoI14uk [10]

Answer:

425-65=360

360-65=295

Mrs Chan had at first 295 cookies

3 0
3 years ago
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