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Dmitry_Shevchenko [17]
3 years ago
15

4/5x - 1/4x = 11, find x

Mathematics
1 answer:
aivan3 [116]3 years ago
6 0

Answer:

x= 20

Step-by-step explanation:

1. multiply both sides by 20: 16x-5x= 220

2. Combine like terms: 11x=220

3. Divide: x=20

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An expression is defined as a set of numbers, variables, and mathematical operations. The value of the expression (√2)π/(√5) is 2.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The value of the expression (√2)π/(√5) can be written as,

\dfrac{\sqrt2 \pi}{\sqrt5}\\\\= \sqrt{\dfrac25}\pi\\\\=\sqrt{0.4} \times \pi\\\\

= 0.6324 × π

= 1.9869 ≈ 2

Hence, The value of the expression (√2)π/(√5) is 2.

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Which step is incorrect when solving the equation 2(x+9)=4(x+7)+2?
iragen [17]

Answer:

3. 2x+18=4x+26

Step-by-step explanation:

2(x+9)=4(x+7)+2

2x+18=4x+28+2

2x+18=4x+<u>3</u><u>0</u>

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3 years ago
What is the relationship between 21 and 22?
blsea [12.9K]

someone please help her or him please

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3 years ago
Amir pits £3035 into a bank account. The account pays 4% compound interest each year. Work out how much money amir will have in
myrzilka [38]

Answer:

\£3840.2

Step-by-step explanation:

Let P denotes principal amount, T denotes time period and R denotes rate of interest.

Amount = P(1+\frac{R}{100})^T

Amir pits £3035 into a bank account. The account pays 4% compound interest each year.

Put P=\£3035,\,R=4\%,\,T=6

Amount = 3035(1+\frac{4}{100})^6=3035(\frac{104}{100})^6=\£3840.2

Therefore, Amir will have \£3840.2 in the account after 6 years.

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