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vova2212 [387]
3 years ago
6

1. 90c : $4.50 2. 80cm : 1.2m

Mathematics
2 answers:
zepelin [54]3 years ago
7 0
Hey the answer for that question is 2:3
horrorfan [7]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

Before simplifying the ratios we require them to have the same units.

(1)

$4.50 = 450c, thus

90c : $4.50

= 90 : 450 ← divide both parts by 10

= 9 : 45 ← divide both parts by 9

= 1 : 5

(2)

1.2 m = 1.2 × 100 = 120 cm, thus

80 cm : 1.2 m

= 80 : 120 ← divide both parts by 10

= 8 : 12 ← divide both parts by 4

= 2 : 3

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You have a credit card with a balance of $754.43 at a 13.6% APR. You have $300.00 available each month to save or pay down your
pochemuha
 <span>B(n) = A(1 + i)^n - (P/i)[(1 + i)^n - 1] 

where B is the balance after n payments are made, i is the monthly interest rate, P is the monthly payment and A is the initial amount of loan. 

We require B(n) = 0...i.e. balance of 0 after n months. 

so, 0 = A(1 + i)^n - (P/i)[(1 + i)^n - 1] 

Then, with some algebraic juggling we get: 

n = -[log(1 - (Ai/P)]/log(1 + i) 

Now, payment is at the beginning of the month, so A = $754.43 - $150 => $604.43 

Also, i = (13.6/100)/12 => 0.136/12 per month 

i.e. n = -[log(1 - (604.43)(0.136/12)/150)]/log(1 + 0.136/12) 

so, n = 4.15 months...i.e. 4 payments + remainder 

b) Now we have A = $754.43 - $300 = $454.43 so, 

n = -[log(1 - (454.43)(0.136/12)/300)]/log(1 + 0.136/12) 

so, n = 1.54 months...i.e. 1 payment + remainder 
</span>
8 0
3 years ago
Can y’all help pls ;)
Vikentia [17]

Answer:

A. 5x+6

Step-by-step explanation:

-\frac{1}{3}(9x-18)+8x

-3x+6+8x (multiply across the -1/3)

5x+6 (combine 8x and -3x)

4 0
3 years ago
Rapheal paid $624 for a camera during a 60% off sale. What was the cameras regular rice?
Nostrana [21]
$1040.00
______________________________________________
Raphael paid $624

624/.60= 1040.00
4 0
3 years ago
Please<br>Help me I don't get this! ​
Vikentia [17]
The 4 in and the 6 in are the same but the difference between the two triangles are 1.5

6:4 = 1.5
So if 12 = 1.5 (?)
The (?) = 8
4 0
2 years ago
Please Help , Is It A,B,C Or D
vladimir1956 [14]

Answer:

Im Gonna Have to Say B

Step-by-step explanation:

5 0
3 years ago
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