Answer:
28
Step-by-step explanation:
Answer:
it takes approximately 11 years and 3 months (11.4 years) for Belinda's investments to double.
Step-by-step explanation:
To calculate the time it takes for Belinda's money to double, we will use the simple interest formula as shown below:
Simple interest = P × R × T
where:
P = principal = $800
R = Rate in decimal = 8.75% = 0.0875
T = time = ???
simple interest = $800 ( her money doubles)
∴ 800 = 800 × 0.0875 × t
800 = 70 × t
∴ t = 800 ÷ 70 = 11.4 years. (11 years and 3 months)
Therefore after approximately 11 years and 3 months, Belinda's investments doubles
The answer would be 24/5, 4 4/5, or 4.8
First, you would need to determine how much it would cost her if it was three for $1 or seven for 42.
Three for $1:
21 ÷ 3 = 7
7 × $1.00 = $7.00
Seven for $2:
21 ÷ 7 = 3
3 × $2.00 = $6.00
Now, all you would need to do is find the difference.
$7.00 - $6.00 = $1.00
Jackie would have saved A. $1.00.
I hope this helps!
Answer:
7<em>x</em> + 10
Step-by-step explanation:
10 + 8<em>x</em> - 1<em>x</em>
<em>Add or subtract like terms.</em>
10 + (8 - 1)<em>x</em>
10 + (7)<em>x</em>
<em>Rearrange.</em>
7<em>x</em> + 10