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3 years ago

Can someone help me with my homework please

Mathematics

1 answer:

vichka [17]3 years ago

4 0

Now you can see its pretty simple, its 128 but the way i got it is first you double 8 which makes 16 right then double 16 and you can see you got 32 then double 32 which makes 64 so next what you have to do is double 64 Obiously so you just double those numbers to get 128....Get it?

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The H.C.F. and L.C.M. of two numbers are 6 and 280 respectively if one of the number is 30 find the other number.

viktelen [127]

Answer:

168.

Step-by-step explanation:

H.C.F. = 6 = 2 by 3.

L.C.M. = 280 = 2^3 by 5 by 7.

30 = 2 by 3 by 5.

x = 2^3 by 3 by 7 = 168.

I used the factorisation method.

5 0

3 years ago

Bill is making a garden that is twice as long as it is wide.

Cloud [144]

Answer:

The equation that best represent the situation is;

x^2 = 576

or x^2 -576 = 0

Step-by-step explanation:

Here, we want an equation that best represent the given information in the question.

The length of the garden is twice as long as it is wide

So, given that x is the length of the garden, then x/2 will represent the width of the garden

From the description given in the question, the garden would be rectangular in shape.

Mathematically, the area of a rectangle can be calculated using the formula;

L * B = area

Thus;

x * x/2 = 288

x*2 = 2 * 288

x^2 = 576

5 0

3 years ago

In how many year the interest will became equal to the principal is rs.1200 is deposited at the rate of 25% in a bank

mrs_skeptik [129]

Given:

Principal = Rs. 1200

Rate of interest = 25%

To find:

The time in which the interest will became equal to the principal.

Solution:

We have,

$P=1200$

$r=\dfrac{25}{100}$

$r=0.25$

If interest is equal to the principal, then

$Amount=Principal+Interest$

$Amount=1200+1200$

$Amount=2400$

The formula for amount is:

$A=P\left(1+r)^n$

Substituting $A=2400, P=1200, r=0.25$ in the above formula, we get

$2400=1200(1+0.25)^n$

$\dfrac{2400}{1200}=(1.25)^n$

$2=(1.25)^n$

Taking log on both sides, we get

$\log2=\log(1.25)^n$

$\log2=n\log(1.25)$ $[\because \log a^b=b\log a]$

$\dfrac{\log2}{\log(1.25)}=n$

$n\approx 3.11$

Therefore, the interest will became equal to the principal in about 3.11 years.

4 0

3 years ago

Manny makes $8.75 an hour working at the video store. His paycheck shows that he worked 37.5 hours over the past week. How much

aleksley [76]

Y=8.75x
So (8.75)(37.5)= 328.125$. All you have to do is multiply his hours by his pay.

6 0

3 years ago

Abiodun and taiwo share 735 naira between them so that abiodun get 95naira more than taiwo find how much money each gets

DerKrebs [107]

Answer:

Abiodun gets - <u>415 naira</u>

Taiwo gets -<u> 320 naira</u>

Step-by-step explanation:

Let us consider x and y as Abiodun and Taiwo,

Therefore , acccording to the question , equation formed will be -

$x+y=735$ naira ------ 1

and

$x=y+95$

$x-y=95$ ------2

From equation 1 and 2, we get

$2x=830$

$x=\frac{830}{2}$

$x=415$ naira (that is Abiodun share)

now , Calculating Taiwo share from equation 1

$x+y=735\\415+y=735$

$y=735-415$

y = 320 naira (that is Taiwo share )

Therefore , Share of Abiodun = 415 naira

Share of Taiwo = 320 naira

5 0

3 years ago