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o-na [289]
4 years ago
15

You have $400 in a savings account that earns 2% interest. About how many year will it take to double? *

Mathematics
1 answer:
Sav [38]4 years ago
7 0
I think the answer is a or b
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Monica paid sales tax of $2.80 when she bought a new bike helmet. If the sales tax rate was 7%, how much did the store charge fo
larisa [96]

7 % of cost price is 2.80 , What about 1%?

7 = 2.80

1 = x   (where x is the price value of 1% in dollars)

We simplify the above equation, so:

7 × x = 2.8 × 1  →  7x = 2.8 →  x = 2.8 / 7  →   x = 0.4 dollars

We know that 100%  represents the whole price,

so if 1% is 0.4 dollars, then 100% will be 0.4 × 100 = 40 dollars

Therefore the store charged $40  dollars for the helmet before tax




5 0
3 years ago
What is the equivalent fraction to 4/5
goldenfox [79]
Equivalent fraction for four this is 8/10
3 0
3 years ago
A fertilizer covers 3 4 square foot in 1 2 hour. The unit rate is square feet per hour.
Alenkasestr [34]

Answer:

2\frac{5}{6} square foot per hour

Step-by-step explanation:

The total area covered = 34 square foot

Time taken = 12 hours

This implies that it takes 12 hours to cover 34 square foot.

Using proportionality,

12 hours ---------------------------------------> 34 square foot

Dividing both sides by 12

\frac{12}{12} hours ---------------------------> \frac{34}{12} square foot

1 hour ---------------------------------------> 2\frac{5}{6} square foot per hour

The unit rate in square feet per hour is 2\frac{5}{6} square foot per hour

7 0
3 years ago
Eighteen percent of apples grown in an orchard have defects. Let X = the number of apples that are randomly inspected from the o
KonstantinChe [14]

Answer:

0.219 or 21.028%

Step-by-step explanation:

0.18 are defective, so

P(x=1) = 0.18

P(x=2) = 0.18^2 = 0.0324

P(x=3) = 0.18^3 = 0.005832

P(x=4) = 0.18^4 = 0.00104976

Then add them together: 0.21928176

6 0
2 years ago
Can anybody help me with my work
nadya68 [22]

Answer:

$5.75

Step-by-step explanation:

14.25 divided by 5= 2.85

2.85+2.85=5.75

7 0
2 years ago
Read 2 more answers
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