Answer:
$260
Step-by-step explanation:
GIven
P=$250
R=4%
T=1 year
The total amount of simple interest is
A=P(1+rt)
substitute
A=250(1+0.04*1)
A=250(1.04)
A=250*1.04
A=$260
Hence the total amount is $260
The dimensions of the actual image are 8 inches long by 11 inches wide.
The new scale gives a drawing that is 32 cm long by 44 cm wide.
We use proportions to solve this. For the length of the actual image:
6/1 = 48/x
Cross multiply:
6*x = 48*1
6x = 48
Divide both sides by 6:
6x/6 = 48/6
x =8 inches
For the width of the actual image:
6/1 = 66/x
6*x = 66*1
6x = 66
Divide both sides by 6:
6x/6 = 66/6
x = 11
For the new scale image, use the new scale:
Length:
4/1 = x/8
Cross multiply:
4*8 = x*1
32 = x
Width:
4/1 = x/11
4*11 = x*1
44 = x
Answer: -5°
Step-by-step explanation:
-15 + 10 is -5
For this case, the first thing to do is define variables.
We have then:
- <em>x: number of nickels
</em>
- <em>y: number of dimes
</em>
- <em>z: number of quarters
</em>
We write now the system of equations:
Then rewriting the equations we have:
Then, substituting values we have:
Finally:
Answer:
19 nickels
14 dimes
7 quarters