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3 years ago

15^2-13=x-3 solve for x and round to nearest 10th if necessary

Mathematics

2 answers:

IRISSAK [1]3 years ago

7 0

Answer:

x = 215

Step-by-step explanation:

15^2-13=x-3

225 - 13 = x - 3

212 + 3 = x - 3 + 3

215 = x

Phoenix [80]3 years ago

6 0

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Flip the equation.

Step 3: Add 3 to both sides.

x=215

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3 years ago

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Vadim26 [7]

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Step-by-step explanation:

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3 years ago

Find the equation of the line that is perpendicular to y = – 1 4 x – 8 and passes though the point (2, –4).

vivado [14]

The equation of the line is $y=\frac{1}{4}x-\frac{29}{7}$

Explanation:

The equation of the line is perpendicular to $y=-14 x-8$

The equation is of the form $y=mx+b$ where m=-14

<u>Slope:</u>

The slope of the perpendicular line can be determined using the formula,

$m_1 \cdot m_2=-1$

$-14 \cdot m_2=-1$

$m_2=\frac{1}{14}$

Thus, the slope of the line is $m=\frac{1}{14}$

<u>Equation of the line:</u>

The equation of the line can be determined using the formula,

$y-y_1=m(x-x_1)$

Substituting the slope $m=\frac{1}{14}$ and the point (2,-4), we get,

$y+4=\frac{1}{14}(x-2)$

Simplifying, we get,

$y+4=\frac{1}{14}x-\frac{1}{7}$

$y=\frac{1}{14}x-\frac{1}{7}-4$

$y=\frac{1}{4}x-\frac{29}{7}$

Thus, the equation of the line is $y=\frac{1}{4}x-\frac{29}{7}$

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3 years ago

Can someone help me I can't remember how to do ratios

omeli [17]

3 casseroles feeds 15 people

The ratio is 3:15

If you divide each of those by 3, youll find that 1 casserole feeds 5 people

1 : 5 is the ratio.

Divide 30 by 5 = 6

6 casseroles feeds 30 people.

6 : 30

35 divided by 5 = 7

7 casseroles feed 35 people

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4 years ago

If 8 packs of gum cost $9.48. What is the unit cost?

Kitty [74]

Answer:$1.185

Step-by-step explanation:

8 gum cost $9.48

1 gum cost 9.48/8=1.185

Unit cost is $1.185

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4 years ago