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2 years ago

What is the solution to this equation?

Mathematics

1 answer:

Sveta_85 [38]2 years ago

3 0

Answer:

Step-by-step explanation:

Given

2(5x + 8) = 6x + 20 ← distribute parenthesis on left side

10x + 16 = 6x + 20 ( subtract 6x from both sides )

4x + 16 = 20 ( subtract 16 from both sides )

4x = 4 ( divide both sides by 4 )

x = 1 → B

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A pot contains 25 ounces of soil. You use 4 1/4

Wewaii [24]

Answer: multiply 4 1/4 by 5 then see if you have enough .

Step-by-step explanation: multiply 4 1/4 by 5 because you have used 1 herb already so if you do that you could have enough in there to pot 5 .

6 0

2 years ago

Write the equation of a line that is perpendicular to y=7x−2 and passes through the point (14,8).(1 point) y=7x−90 y=10x−17 y=−1

True [87]

Answer:

$\huge\boxed{y=-\frac{1}{7}x+ 10}$

Step-by-step explanation:

In order to find the equation of this line, we need to note two things.

A) The slope of two lines that are perpendicular will be opposite reciprocals (that is, multiplying them gets us -1.)
B) We can substitute a point inside an incomplete equation to try and find a missing value.

So first, let's find the opposite reciprocal of 7 which will be the slope to this equation.

Reciprocal of 7: $\frac{1}{7}$
Opposite of $\frac{1}{7}$ : $-\frac{1}{7}$

So the slope of this line will be $-\frac{1}{7}$ . The y-intercept will change, and we can substitute what we know into the equation $y=mx+b$ .

$y = -\frac{1}{7}x+b$

Now, we can substitute a point on the graph (14, 8) into this equation to find b.

$8 = -\frac{1}{7} \cdot 14 + b$
$8 = -\frac{14}{7} + b$
$8 = -2 + b$
$b = 10$

Now that we know the y-intercept, we can finish off our equation by plugging that in.

$y = -\frac{1}{7}x + 10$

Hope this helped!

7 0

2 years ago

Read 2 more answers

1.) -9x+8 ≤ 80 * A. x ≥ -8 B. x ≤ -8 C. x ≥ 8 D. x ≤ 8

Firlakuza [10]

Answer:

$x\geq -8$

Step-by-step explanation:

$-9x+8\leq 80$

-8 -8

₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋

$\frac{-9x}{-9} \leq \frac{72}{-9}$

⇵

$x\geq -8$

7 0

2 years ago

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.A square field has a side 30m. Find the cost of fencing its four sides at Rs. 10 per metre

Ratling [72]

Answer:

1,200

Step-by-step explanation:

So first we need to find the perimeter

$P=30+30+30+30\\\\P=120$

so it costs 10 per meter

$120\times 10=1,200$

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2 years ago

(Super easy). through: (-4,-2) and (1, 4) Plleeeaassee help

ikadub [295]

What do we do? Like line it or what

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2 years ago

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