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3 years ago

0.2x + 0.3y = 0.5 need help plzz

Mathematics

1 answer:

krok68 [10]3 years ago

6 0

Answer:

y = − 0. 6 x + 1.6

Step-by-step explanation:

Write in slope-intercept form,

y = m x + b

Note:

The decimals (0.6) and (1.6) ARE repeating...

If you need any other form of working it out let me know!

Glad I could help!!

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If x+1/x=7,find x^2+1/x^2

trapecia [35]

Answer:

x²+1/x² = 51

Explanation:

Given x - 1/x = 7 ---(1)

We know the algebraic identity:

a²+b²-2ab = (a-b)²

a²+b² = (a-b)²+2ab

Now,

x²+1/x²

= (x-1/x)²+2*x*(1/x)

= (x-1/x)²+2

:7²+2 [ from (1)] =

= 49+2

= 51

Therefore,

x²+1/x² = 51

3 0

3 years ago

Which number line shows the solutions to n > 3?ヽ(°◇° )ノ

balu736 [363]

It is the first number line :)

3 0

4 years ago

Read 2 more answers

Can anybody help me???

Tasya [4]

#10

$\\ \rm\longmapsto 0$

#11

Last three i.e Option B,C,D

#13

It started from negative ends at positive hence

$\\ \rm\longmapsto y=-|x|+2$

#14

(-3,-10)

$\\ \rm\longmapsto 2(-3)-(-10)=4$

$\\ \rm\longmapsto -6+10=4$

Proved

#15

(1,1)

$\\ \rm\longmapsto 1=(1-2)^2=(-1)^2=1$

#16

(2,-4)

$\\ \rm\longmapsto -2-2(-4)>3$

$\\ \rm\longmapsto -2+8>3$

$\\ \rm\longmapsto 6>3$

5 0

3 years ago

Fill in the table using the function rule y = 4 + 6x

xenn [34]

Answer:

10x

Step-by-step explanation:

5 0

3 years ago

Tina lives in a state that charges her 4.5% state income tax on her federal taxable income. If her federal taxable income is $61

Irina-Kira [14]

$ 2772 is paid in state income tax

Solution:

Given that, Tina lives in a state that charges her 4.5% state income tax on her federal taxable income

Federal taxable income = $61,600

To find: Amount paid by Tina in state income tax

Tax rate = 4.5 %

Which means, 4.5 % of $61,600 is paid as tax

$Tax\ Rate = 4.5 \% \text{ of } 61600$

Here, "of" means multiplication or product

$Tax\ Rate = 4.5 \% \times 61600\\\\Tax\ Rate = \frac{4.5}{100} \times 61600\\\\Tax\ Rate = 0.045 \times 61600\\\\Tax\ Rate = 2772$

Thus $ 2772 is paid in state income tax

7 0

4 years ago

0.2x + 0.3y = 0.5 need help plzz​

0.2x + 0.3y = 0.5 need help plzz