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RSB [31]
2 years ago
11

Maria earned $126 in simple interest from her savings account. If she invested $450 for 7 years, what was the interest rate?

Mathematics
1 answer:
Alik [6]2 years ago
4 0

Answer:

answer is 4%

Step-by-step explanation:

use formula Interest = Principal x Rate x Time

126 = 450 · 7 · r

126 = 3150 r

r = .04

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8 0
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3 years ago
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3 years ago
(1) An M&Ms factory produces 109,500,000 M&M’s every day. About ¼ of its M&Ms are blue. Find the number of blue M&am
Gemiola [76]

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4 0
3 years ago
While surveying Overlook Cave, Mike measures the angle of elevation from his line of sight to the top of a rock formation as 22°
Kaylis [27]

Answer:

The rock formation is approximately 7 feet tall.

Step-by-step explanation:

<em>We can visualize this situation as a triangle and know that the bottom side is </em><em>10</em><em> and the angle of elevation (the angle created by Mike and the ground, looking to the top of a rock). With this information, we can use tangent to solve.</em>

<em>x = the height of the rock formation</em>

tan(22°) = x/10

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x + 3 = 7.04 feet

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2 years ago
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