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Illusion [34]
3 years ago
15

Please give maths division sums of algebraic expressions class 8 HARD ONES MAXIMUM 10

Mathematics
1 answer:
Vitek1552 [10]3 years ago
7 0

Answer:

Simplify the following algebraic expressions.

A) -2x + 5 + 10x - 9

B) 3(x + 7) + 2(-x + 4) + 5x

Simplify the expressions.

A) (2x - 6) / 2

B) (-x - 2) / (x + 2)

C) (5x - 5)/10

Solve for x the following equations.

A) -x = 6

B) 2x - 8 = -x + 4

C) 2x + 1/2 = 2/3

D) x/3 + 2 = 5

E) -5/x = 2

Convert to decimals.

A) 1/5

B) 120%

C) 0.2%

D) 4 8/5

Convert to percent.

A) 3/10

B) 1.4

C) 123.45

D) 2 4/5

Which of these numbers is divisible by 3?

A) 156312

B) 176314

Which of these numbers is divisible by 4?

A) 3432

B) 1257

Which of these numbers is divisible by 6?

A) 1233

B) 3432

Which of these numbers is divisible by 9?

A) 2538

B) 1451

Evaluate 8x + 7 given that x - 3 = 10.

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What is the sound level for a noise that has an intensity of 9.9 × 10-5 watts/m2?
lisabon 2012 [21]

we can use

sound level formula

\beta=10log(\frac{I}{I_0} )dB

where

\beta is the sound level for a noise

I is intensity given

I0 is reference intensity

we know that reference intensity as

I_0=1*10^{-12}W/m^2

we are given

I=9.9*10^{-5}W/m^2

now, we can plug these values

and we get

\beta=10log(\frac{9.9*10^{-5}W/m^2}{1*10^{-12}W/m^2} )dB

now, we can simplify it

\beta=10log(9.9*10^{-5+12} )dB

\beta=79.95635dB................Answer


5 0
4 years ago
Rady recycled 4 cans less than 3 times the number of cans Addison recycled, x. Which expression represents the total number of c
Stella [2.4K]
3x-4
Think of times = multiplication
Less than = x-y
4 0
3 years ago
Can someone help me with this problem?
pashok25 [27]
No, it is not a solution.

Let's plug 5 into the equation where p is.

10(5) - 2 > 97

50 - 2 > 97

48 > 97

This is false, 48 is less than 97.
7 0
4 years ago
Read 2 more answers
A fair coin is flipped four times. What is the probability of getting heads at least once?
Llana [10]
The probability is 15.63%. Solution:
 (1 + 4)! over (1! + 4! + 2 raise to 5)
=5/32
=.1563
=15.63%
6 0
4 years ago
Please help!!! Thanks <br> Will mark brainliest!!
prohojiy [21]

Answer:5

Step-by-step explanation:

4 0
4 years ago
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