Answer:
2 and 1
Step-by-step explanation:
1.91 - 2 decimals
2.3 - 1 decimal
Step-by-step explanation:
By Pythagoras' Theorem, we have
Hypotenuse = √[(13.9)² + (10.2)²] = 17.2. (B)
Tia's wire is 4 meter and 8 centimeter long which is that is 408 centimeter long and it is divided in 10 pieces.
tia = 408/10 = 40.8 cm
Tia's wire pieces are <span>40.8 cm long
Marta's wire, it is 540 centimeter long and is divided into 9 pieces
marta = 540/9 = 60 cm
Marta's wires are longer than Tia's
Marta's wire is 19.2 cm longer than tias
60cm - 40.8cm= 19.2 cm </span><span />
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

Therefore, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.
Answer:
b
Step-by-step explanation: