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2 years ago

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Mary borrowed 400.00 from a bank for 2 years. The total interest she paid was 24.00 Mary bro 400 from a bank for 2 years and was

church simple interest the total interest that she paid on the loan with $24 as a percentage what was the annual interest rate of her lung

1 answer:

iogann1982 [59]2 years ago

5 0

Answer:

3%

Step-by-step explanation:

24÷400=.06

.06=6%

6%÷2=3%

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Little Melinda has nickels and quarters in her bank. She has two

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A) N +2 = Q which equals

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.30N = 3

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*************DOUBLE CHECK ***************

.05 nickels = $0.50 .25 Quarters = $3.00

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3 years ago

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3 years ago

An aeroplane X whose average speed is 50°km/hr leaves kano airport at 7.00am and travels for 2 hours on a bearing 050°. It then

Zigmanuir [339]

Answer:

(a)123 km/hr

(b)39 degrees

Step-by-step explanation:

Plane X with an average speed of 50km/hr travels for 2 hours from P (Kano Airport) to point Q in the diagram.

Distance = Speed X Time

Therefore: PQ =50km/hr X 2 hr =100 km

It moves from Point Q at 9.00 am and arrives at the airstrip A by 11.30am.

Distance, QA=50km/hr X 2.5 hr =125 km

Using alternate angles in the diagram:

$\angle Q=110^\circ$

(a)First, we calculate the distance traveled, PA by plane Y.

Using Cosine rule

$q^2=p^2+a^2-2pa\cos Q\\q^2=100^2+125^2-2(100)(125)\cos 110^\circ\\q^2=34175.50\\q=184.87$ km$

SInce aeroplane Y leaves kano airport at 10.00am and arrives at 11.30am

Time taken =1.5 hour

Therefore:

Average Speed of Y

$=184.87 \div 1.5\\=123.25$ km/hr\\\approx 123$ km/hr (correct to three significant figures)$

(b)Flight Direction of Y

Using Law of Sines

$\dfrac{p}{\sin P} =\dfrac{q}{\sin Q}\\\dfrac{125}{\sin P} =\dfrac{184.87}{\sin 110}\\123 \times \sin P=125 \times \sin 110\\\sin P=(125 \times \sin 110) \div 184.87\\P=\arcsin [(125 \times \sin 110) \div 184.87]\\P=39^\circ $ (to the nearest degree)$

The direction of flight Y to the nearest degree is 39 degrees.

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3 years ago

What is the area model for 821 x 54

Kay [80]

4,334 Is The Answer

821
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3 years ago

Which ordered pairs could be used to graph the equation 2x+y=5

Marrrta [24]

Answer:

(-2,9) ,(4,-3)

Step-by-step explanation:

Given the expression 2x+y=5

We are required to look for values of x and y such that when substituted into the given expression will result in the number 5

The Pairs are (-2,9) ,(4,-3)

Let us plug in the values to check

1. (-2,9)

2(-2)+9=5

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5=5 true

2. (4,-3)

2(4)+(-3)=5

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5=5 true

7 0

3 years ago

Read 2 more answers