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ikadub [295]
3 years ago
7

I need the answer to 6x - 9x+ 7= -1

Mathematics
2 answers:
Svetllana [295]3 years ago
6 0

Answer:

x = 8/3 or 2.67

Step-by-step explanation:

6x - 9x + 7 = -1

6x - 9x = -3x

-3x + 7 = -1

       -7    -7

-3x = -8

/-3    /-3

<u>x = 8/3</u> or <u>2.67</u>

iogann1982 [59]3 years ago
5 0

Answer:

x = -8/3

Step-by-step explanation:

So first let's simplify the expression. Grouping together like terms gives:

-3x + 7 = -1

Subtracting 7 from both sides gives

-3x = -8

Meaning x = -8/3

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Barbara bought items for $7.50, $8.25, and $6.15. She gave the clerk $30.00. How much was her change?
aleksley [76]

Answer:

$8.10

Step-by-step explanation:

yes

5 0
3 years ago
I would appreciate if someone could answer this
zmey [24]

Answer:

x = 15

LN and MO both equal 43

Step-by-step explanation:

LN and MO are diagonals in rectangle

Diagonals of a rectangle are congruent Hence, 4x - 17 = 2x + 13

Now we solve for x

4x - 17 = 2x + 13

Add 17 to both sides

4x = 2x + 30

Subtract 2x from both sides

2x = 30

Divide both sides by 2

x = 15

Now we want to find the values of LN and MO

To do so we substitute 15 for x in it's given expression ( note: because LN = MO we only need to do this process once )

LN = 4x - 17

Substitute 15 for x

4(15) - 17

Multiply

60 - 17

Subtract

LN and MO = 43

8 0
3 years ago
Elsa drove 737 miles in 11 hours.<br> At the same rate, how many miles would she drive in 13 hours?
tatuchka [14]

Answer:

871 miles

Step-by-step explanation:

737/11= 67

67 x 13= 871

8 0
3 years ago
Ted invests $8,310 in a savings account with a fixed annual interest rate of 2% compounded continuously. How long will it take f
Vsevolod [243]

Answer: It will take 8 years.

Step-by-step explanation:

Equation for interest compounded continuously:

A=Pe^{rt} , A = accumulated amount , P=Principal value , r =rate of interest , t= time.

Given: P=  $8,310 , r = 2%  , A= $9,751.88

9751.88=8310e^{0.02t}\\\\\Rightarrow\ \dfrac{9751.88}{8310}=e^{0.02t}\\\\\Rightarrow\ 1.17351143201=e^{0.02t}

Taking natural log on both sides

\ln (1.17351143201)=\ln (e^{0.02t})\\\\\Rightarrow\ 0.160000478068=0.02t\\\\\Rightarrow\ t=\dfrac{0.160000478068}{0.02}\\\\\Rightarrow\ t=8.0000239034\approx8

Hence, it will take 8 years.

8 0
3 years ago
4 1/4 = 16/blank + 1/4
Tomtit [17]

Answer:

The “blank” is 4

Step-by-step explanation:

4 1/4= 16/x+ 1/4

We want to get rid of the 1/4. So we subtract it from both sides and get

4= 16/x

We know that if we put 16 divided by 4, you get 4.

This gives you 4= 16/4.

This is your final answer.

5 0
3 years ago
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