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3 years ago

Can you add a whole number to a number with a variable

1 answer:

7 0

No, u cant. Because they are not like terms

Examples :
1 + 2v....cannot add or subtract because they are not like terms
2v + 4v = 6v...u can if they have exactly the same variable
3x^2 + 2x...cant
x^2 + 4x^2...can...= 5x^2
3 + 3 ....can
2 + 5x...cant

now u can multiply and divide one...u just cant add or subtract them

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What would be the answer of my fractions 9 1/2 + 4 3/5=

Nina [5.8K]

Answer:

14 $\frac{1}{10}$ or $\frac{141}{10}$

Step-by-step explanation:

Turn your fractions into improper and make them have the same denominator

$\frac{95}{10}$ + $\frac{46}{10}$ = $\frac{141}{10}$

Leave it as is or simplify to 14 $\frac{1}{10}$

8 0

3 years ago

Read 2 more answers

four times a number decreased by 6 is less than -2. Define a variable, write an inequality, and solve for the number

Strike441 [17]

The inequality is 4x - 6 < - 2 and solution for number is x < 1, where "x" is the variable

Solution:

Given that four times a number decreased by 6 is less than -2

To find: Define a variable, write an inequality, and solve for the number

Let "x" be the required number

From given information,

four times a number decreased by 6 < -2

four times "x" decreased by 6 < - 2

Here "times" represents multiplication. Four times x means 4 is multiplied by x

Decreased means something is subtracted away

Here 6 is subtracted from four times "x"

So we frame a inequality as:

4x - 6 < - 2

Moving -6 from R.H.S to L.H.S,

4x < -2 + 6

4x < 4

Dividing both sides by 4,

x < 1

Thus the inequality is 4x - 6 < - 2 and solution for number is x < 1

3 0

3 years ago

Jessica earns 5% of all sales she made, If she made $4,500 worth of sales, what is her

jeka57 [31]

Answer:

225.5$

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

A sound engineer is positioning a cardioid microphone for a music concert. Which equation corresponds to a microphone facing the

Flura [38]

Answer:

D r = 4 − 4 cos(θ)

Step-by-step explanation:

Right on edge

5 0

3 years ago

Solve the quadratic equation: 3x^2+x-5=0

adell [148]

3x²+x-5=0

a = 3, b = 1, c= -5

-> ∆ ( delta ) = b²-4ac = 61 > 0

-> x1 =( -b+√∆ )÷ 2a =...

x2 = (-b-√∆)÷2a =...

p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.

4 0

2 years ago