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Liula [17]
1 year ago
7

(5x+7)(8x+7) = 0Find the two possible values.​

Mathematics
2 answers:
zheka24 [161]1 year ago
8 0

Hi!

___________________________________________________________

\rightsquigarrow\circ\boldsymbol{Answer.}\circ\leftharpoonup

\rightsquigarrow\circ\boldsymbol{Explanation}\circ\leftharpoonup

Set each factor equal to 0.

\twoheadrightarrow\sf 5x+7=0

\twoheadrightarrow\sf 8x+7=0

\bullet <em>Solve each equation</em>

\twoheadrightarrow\sf 5x+7=0

\bullet <em>Subtract 7 from both sides</em>

\twoheadrightarrow\sf 5x=-7

\bullet <em>Divide both sides by 5</em>

\underline{\twoheadrightarrow\sf x=-\cfrac{7}{5}}

\bullet <em>Now let's solve the second equation</em>

\twoheadrightarrow\sf 8x+7=0

\bullet <em>Subtract 7 from both sides</em>

\twoheadrightarrow\sf 8x=-7

\bullet <em>Divide both sides by 8</em>

\underline{\twoheadrightarrow\sf x=-\cfrac{7}{8}}

\bullet <em>Great job, we found the two possible values</em>

--

Hope that this helped! Best wishes.

\textsl{Reach far. Aim high. Dream big.}\\\boldsymbol{-Greetings!-}

--

NeTakaya1 year ago
4 0

(5x + 7)(8x + 7) \\  \\ 5x + 7 = 0 \\  \\ 5x =  - 7 \\  \\ x =  \frac{ - 7}{5}  \\  \\ 8x + 7 = 0 \\  \\ 8x =  - 7 \\  \\ x =  \frac{ - 7}{8} .

the values of x are -7/5 and -7/8 .

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Brums [2.3K]

Answer:

5 4/9

Step-by-step explanation:

Convert a mixed number 2 19

to a improper fraction: 2 1/9 = 2 19 = 2 · 9 + 19 = 18 + 19 = 199

To find new numerator:

a) Multiply the whole number 2 by the denominator 9. Whole number 2 equally 2 * 99 = 189

b) Add the answer from previous step 18 to the numerator 1. New numerator is 18 + 1 = 19

c) Write a previous answer (new numerator 19) over the denominator 9.

Two and one ninth is nineteen ninths

Add: 19

9+ (-29) = 19 + (-2)9= 179

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 9) = 9. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 9 × 9 = 81. In the next intermediate step the fraction result cannot be further simplified by canceling.

In words - nineteen ninths plus minus two ninths = seventeen ninths.

Conversion a mixed number 3 59

to a improper fraction: 3 5/9 = 3 59= 3 · 9 + 59= 27 + 51 = 329

To find new numerator:

a) Multiply the whole number 3 by the denominator 9. Whole number 3 equally 3 * 99 = 279

b) Add the answer from previous step 27 to the numerator 5. New numerator is 27 + 5 = 32

c) Write a previous answer (new numerator 32) over the denominator 9.

Three and five ninths is thirty-two ninths

Add: the result of step No. 2 + 32

9= 179+ 329 = 17 + 329 = 499

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 9) = 9. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 9 × 9 = 81. In the next intermediate step the fraction result cannot be further simplified by canceling.

In words - seventeen ninths plus thirty-two ninths = forty-nine ninths.

7 0
2 years ago
translate this into an equation, use n for the number: "the different of 3 times a number and 6 is twice the number."
natali 33 [55]

Answer:

6

Step-by-step explanation:

6 * 3 = 18

18 - 6 = 12

12 is twice of 6, the number

4 0
2 years ago
If the length of a rectangle is three times it’s width and it’s parameter is 24cm what is the area
katrin [286]

Answer:

Area = 27 cm²

Step-by-step explanation:

let L be the length of the rectangle

    w the width

    P the perimeter

    A the area

<u>Formulas</u> :

P = 2×(L + w)

A = L × w

<u>We are Given</u> :

L = 3w

P = 2×(L + w)

⇔ 24 = 2×(3w + w)

⇔ 24 = 2×4w

⇔ 24 = 8w

⇔ w = 24/8 = 3

Then

L = 3w = 3×3 = 9

We obtain L = 9 and w = 3.

Then

A = L × w

  = 9 × 3

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6 0
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Sladkaya [172]

Answer:

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Step-by-step explanation:

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3 years ago
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zaharov [31]

Answer:

B.

Step-by-step explanation:

to turn a decimal into a percentile you have to move the decimal point over two spaces to the right.

6 0
2 years ago
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