Help please! Will mark brainliest to best CORRECT answer! Which scenario represents a proportional relationship?
2 answers:
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Given:
The rate of interest on three accounts are 7%, 8%, 9%.
She has twice as much money invested at 8% as she does in 7%.
She has three times as much at 9% as she has at 7%.
Total interest for the year is $150.
To find:
Amount invested on each rate.
Solution:
Let x be the amount invested at 7%. Then,
The amount invested at 8% = 2x
The amount invested at 9% = 3x
Total interest for the year is $150.
Multiply both sides by 100.
Divide both sides by 50.
The amount invested at 7% is .
The amount invested at 8% is
The amount invested at 9% is
Thus, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.
We will find the answer using the second law of motion i.e. Force is equal to the product of mass and acceleration.
Where,
- F is force
- M is mass
- A is acceleration
In our case,
- F = 32 N
- A = 0.88m/s
- M = ?
Let's solve for M ~
<em>Thus, The mass of object is 36.36 </em><em>grams</em><em>.</em><em>.</em><em>.</em><em>~</em>