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trapecia [35]
2 years ago
10

Solve the equation. (5x+7)(8x-9)=0

Mathematics
2 answers:
swat322 years ago
7 0

Answer:

x = - 7/5 and 9/8

Step-by-step explanation:

Lina20 [59]2 years ago
3 0

Answer:

x = -7/5 and x = 9/8

Step-by-step explanation:

To solve this equation, set both parts of the "expression" equal to 0.

5x + 7 = 0

Subtract 7 from both sides.

5x = -7

Divide both sides by 5.

x = -7/5

8x - 9 = 0

Add 9 to both sides.

8x = 9

Divide both sides by 8.

x = 9/8

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In the algebraic expression v+8 the v is considered the what
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Answer:

the variable  

Step-by-step explanation:

5 0
3 years ago
Seven of the 10 children at art camp make an average of 8 paintings. The remaining children make an average of 12 paintings.
Jlenok [28]
The 7 out of ten adds up to 56 the last 3 add up to 36 which equals 92 divided by ten is 9.2 average
4 0
3 years ago
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find the number of running and passing plays using substitution method 110 plays 3 yards per run 7 yards per pass total yards 37
Zinaida [17]

Let x be the number of running plays

Y  be the number of passing plays

Since the total plays is 110

 X + y = 110

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And solve for y

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7 0
3 years ago
Which system of equations can be used to find the roots of the equation 4x^2=x^3+2x?
irina [24]
Next time, please share the answer choices.
Starting from scratch, it's possible to find the roots:

<span>4x^2=x^3+2x should be rearranged in descending order by powers of x:

x^3 - 4x^2 + 2x = 0.  Factoring out x:  </span>x(x^2 - 4x + 2) = 0

Clearly, one root is 0.  We must now find the roots of (x^2 - 4x + 2):

Here we could learn a lot by graphing.  The graph of y = x^2 - 4x + 2 never touches the x-axis, which tells us that (x^2 - 4x + 2) = 0 has no real roots other than x=0.  You could also apply the quadratic formula here; if you do, you'll find that the discriminant is negative, meaning that you have two complex, unequal roots.
5 0
3 years ago
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2 1/4 x 3 1/5 in its simplest form
Dmitry_Shevchenko [17]
<h3>Solution:</h3>

2 \frac{1}{4}  \times 3 \frac{1}{5}  \\  =  \frac{9}{4} \times  \frac{16}{5}   \\  =  \frac{9 \times 4}{5}  \\  =  \frac{36}{5}  \\  = 7 \frac{1}{5}

<h3>Answer:</h3>

7 \frac{1}{5}

<h3>Hope it helps..</h3><h3>ray4918 here to help..</h3>

7 0
3 years ago
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