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2 years ago

Linear Equations

Mathematics

2 answers:

rjkz [21]2 years ago

7 0

Answer:

Step-by-step explanation:

KATRIN_1 [288]2 years ago

4 0

Answer:

C. x = -61/5

Step-by-step explanation:

7(x+5)+4(x+5) = 6x-6

First let's multiply the parenthesis parts.

7x+35 + 4x+20 = 6x-6

Combine like terms - combine all the x terms and the number terms. 7x + 4x = 11x, 35+20 = 55

11x + 55 = 6x - 6

Subtract 6x from both sides

5x + 55 = -6

Subtract 55 from both sides

5x = -61

x = -61/5

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What 30000.48978 rounded up

Fudgin [204]

Answer:

Rounded to the nearest ones: 30000

Rounded to the nearest tenths: 30000.5

Rounded to the nearest hundredths: 30000.49

Rounded to the nearest thousandths: 30000.490

Rounded to the nearest ten-thousandths: 30000.4898

7 0

2 years ago

an online book store has 173 boxes of books in its warehouse each box has 48 books how many books are in the warehouse

Leni [432]

Answer:

8304

Step-by-step explanation:

1 box=48 books

173 boxes=48x173

=8304

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3 years ago

to the nearest ten thousand, the population of Vermont was estimated to be about 620,000 in 2008.What might have been the exact

sp2606 [1]

There Are Multiple Answers.... Here are 5 possible answers

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6 0

3 years ago

Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

4 0

3 years ago

Read 2 more answers

Round 0.1278 to the nearest thousandth

eduard

≈0.128 is the correct answer

5 0

3 years ago