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3 years ago

What is the solution to this equation? 30.16 = 17.56 + 5x

Mathematics

2 answers:

dolphi86 [110]3 years ago

6 0

X=2.52 is the answer hope this helped

Sergeu [11.5K]3 years ago

6 0

2.56 is ur answer because you subtract 17.56 on both side to get 12.6=5x.Then you divide both sides by 5 to get x=2.56

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nadezda [96]

Answer:

Step-by-step explanation:

because it is 2 parts white paint one part blue paint

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3 years ago

emily is entering a bicycle race for charity. her mother pledges $0.40 for every 0.25 mile she bikes. if emily bikes 6 miles how

I am Lyosha [343]

Answer:

$9.60

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the slope of the line through the points (-13,15), (20,-7)

kifflom [539]

Answer:

$\boxed{ \bold{ \huge{\boxed{ \sf{ \frac{ - 2}{3} }}}}}$

Step-by-step explanation:

Let the points be A and B

A ( -13 , 15 ) ⇒( x₁ , y₁ )

B ( 20 , -7 )⇒( x₂ , y₂ )

Finding the slope  :

$\boxed{ \sf{slope = \frac{y2 - y1}{x2 - x1} }}$

plug the values

⇒ $\sf{slope = \frac{ - 7 - 15}{20 - ( - 13)} }$

We know that, $\sf{( - ) \times ( - ) = ( + )}$

⇒ $\sf{slope = \frac{ - 7 - 15}{20 + 13}}$

Calculate the sum

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Reduce the numbers with G.C.F 11

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Hope I helped !

Best regards!!

7 0

3 years ago

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wariber [46]

Answer:

Option A. $x=10\ in$

Step-by-step explanation:

we know that

The combined area of the 3 windowpanes and frame is equal to

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using a graphing tool to solve the quadratic equation

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see the attached figure

5 0

4 years ago

Find the discriminant and determine the number of real roots for each equation. Show steps.

Iteru [2.4K]

Answer:

0 real roots

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

Then the discriminant is

Δ = b² - 4ac

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then the roots are not real

- 9x² + x - 7 = 0 ← is in standard form

with a = - 9, b = 1, c = - 7 , then

b² - 4ac = 1² - (4 × - 9 × - 7) = 1 - 252 = - 251

Since b² - 4ac < 0 then the equation has no real roots

5 0

3 years ago