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4vir4ik [10]
4 years ago
14

Can I please get some help with 3. Please

Mathematics
1 answer:
stepladder [879]4 years ago
6 0
The easiest thing to do to solve all of these is to use the quadratic equation.

\frac{-b +/-  \sqrt{b^{2} -4ac} }{2a}

The first number (the one attached to x^2) is equal to a. The second number (the one attached to x) is b. The final number (the one with nothing attached) is c. 
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1. Calculate the simple interest over an amount of N$ 2500 that is invested for 3 years and 6 months at a rate of 7% pa.​
Umnica [9.8K]

Answer:

N$  612.5

Step by step explaination:

Given,

Principal or'P'=N$2500

Time or'n'=3 years & 6 months or 3.5 years

Rate of profit or 'r'=7% or 7/100

Profit or 'I'=?

_____________________________________

We know,

I=P*n*r

I=2500*3.5*7/100

I=612.5

So,simple interest is N$  612.5.

3 0
4 years ago
How many 1/4 of an hour segments does it take to make 1 hour​
aniked [119]

Answer:

4

Step-by-step explanation:

because if you divide 60 by four you get fifteen which is the number of segments that is divisible  by 60 because if you divde 60  by anything else you wont get the perfect divisible.

3 0
3 years ago
(1) Write the ratio of the volumes of the 500ml bottle and the 2-litre bottle of milk in its simplest form.
Vadim26 [7]

Answer:

1] 1 : 4

2] 250ml

Step-by-step explanation:

1] 500ml : 2 litre

First, the units must be the same.

<em> 2 litre = 2000ml</em>

500ml : 2000ml

     5 : 20

      <u>1 : 4</u>

<u></u>

2]  \frac{2}{4} × 500

= 250ml

8 0
3 years ago
Find the value of X and y from the given figure.​
denis23 [38]

Answer:

y = 50

x = 80

Step-by-step explanation:

An isosceles triangle therefore has both two equal sides and two equal angles.

the 2 equal angles are y and and the one next to the 130 degree

so 180- 130 = 50

y = 50

x = 180 - 50 -50 = 80 degree

8 0
3 years ago
Read 2 more answers
8. A spinner is divided into 6 equal sections o
Lyrx [107]

Answer:

1/3

Step-by-step explanation:

The numbers are 1, 2, 3, 4, 5, and 6.

Both 3 and 6 are multiples of 3.

So, 2/6 is the probability since there is an equal change that the arrow will land on each section.

This simplifies to 1/3.

Brainliest, please :)

4 0
2 years ago
Read 2 more answers
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