3 years ago

Please help me it helps a lot

Mathematics

1 answer:

RSB [31]3 years ago

7 0

Which question do you need help with

You might be interested in

What is the value of p in the question below. 10x9/2x4= px 5

ycow [4]

Answer:

p = 5

Step-by-step explanation:

We have that:

$\frac{x^{a}}{x^{b}} = x^{a-b}$

$\frac{x^{9}}{x^{4}} = x^{9-4} = x^{5}$

10/2 = 5

Then

$\frac{10x^{9}}{2x^{4}} = 5x^{9-4} = 5x^{5}$

Finding p:

$5x^{5} = px^{5}$

$p = \frac{5x^{5}}{x^{5}}$

$p = 5$

7 0

3 years ago

Find the lest number which is exactly divisible by 36 & 90 Maths

prisoha [69]

Answer:

Step-by-step explanation:

You need to find the HCF of 36 and 90.

<u>Prime factors of each:</u>

36 = 2*2*3*3
90 = 2*3*3*5

<u>HCF includes all prime factors of both numbers:</u>

HCF(36, 90) = 2*2*3*3*5 = 180

3 0

3 years ago

Read 2 more answers

I dont understand how to simplify an expression with exponents

Mashutka [201]

Answer:

3^4

Step-by-step explanation:

Simplifying an expression with expression with exponents:

If they are dividing, we keep the base and subtract the exponents. For example:

$\frac{a^x}{a^y}=a^{x-y}$

In this question:

$\frac{3^2}{3^{-2}}=3^{2-(-2)}=3^{2+2}=3^4$

8 0

1 year ago

What is a pair of fractions as a pair of fractions with a common denominator of 1/3 and 3/4

scoundrel [369]

4/12 for 1/3 and 9/12 for 3/4

4 0

3 years ago

Read 2 more answers

Two brothers, Gethin and David, share a sum of money in the ratio 2:7.

Vitek1552 [10]

12£ and 42£

Step-by-step explanation:

gethin gets 2/9

David gets 7/9

total money is equal to 54

Gethin gets 54x 2/9=12

David gets 54x7/9=42

4 0

3 years ago