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3 years ago

Please help I'm very confused respond ASAP

Mathematics

2 answers:

dmitriy555 [2]3 years ago

5 0

Answer:

B. 80°

Step-by-step explanation:

The triangle in the middle has angles that:

Supplementary with 110°
Supplementary with 150°
Same with x, as alternate exterior angles are congruent

Interior angles of a triangle sum to 180°

Find x:

x + (180° - 110°) + (180° - 150°) = 180°
x + 70° + 30° = 180°
x + 100° = 180°
x = 80°

Correct choice is B

poizon [28]3 years ago

3 0

Answer:

80°

Step-by-step explanation:

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Find the discounted price. Light:$18:00 Discount:25%

lbvjy [14]

The discounted price is $13.5. You do $18 and times it by 0.25. You will get 4.5. You then subtract the 4.5 from the $18 and you get $13.5

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3 years ago

what is the equation in slope-intercept form for the line that passes through (3, 7) and is perpendicular to 3x-5x=8

Galina-37 [17]

Answer:

$5x + 3y = 36$

Step-by-step explanation:

First we need to rewrite 3x-5y=8 in slope-intercept form.

$y = \frac{3}{5} x - \frac{8}{5}$

The slope of this line is

$\frac{3}{5}$

The line perpendicular to this line will have a slope that is the negative reciprocal of 3/5, which is

$m = - \frac{5}{3}$

This line passes through (3,7).

The equation is given by:

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

We substitute the point and slope to get:

$y - 7 = - \frac{5}{3} (x - 3)$

We multiply through by 3 to get:

$3y - 21 = - 5(x - 3)$

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$3y - 21 = - 5x + 15$

$3y + 5x = 15 + 21$

$5x + 3y = 36$

6 0

3 years ago

Oe paid \$18.60$18.60dollar sign, 18, point, 60 in sales tax and tips for her dinner. The sales tax rate is 11\%11%11, percent,

snow_tiger [21]

Answer: The price of Zoe's dinner before sales tax and tips is $13.96.

Step-by-step explanation:

Since we have given that

Amount Zoe paid after sales tax and tip = $18.60

Let the price before tax be 'x'.

Rate of sales tax = 11%

So, it becomes,

$\frac{11}{100}\times x\\\\=0.11x$

So, Amount after tax, our equation, becomes,

$x+0.11x=\$18.60\\\\1.11x=\$18.60\\\\x=\frac{18.60}{1.11}\\\\x=\$16.75$

Now, let the amount before tips be 'y'.

Rate of tips = 20%

So, it becomes,

$\frac{20}{100}\times y\\\\=0.2y$

So, After tips it becomes,

$y+0.2y=\$16.75\\\\1.2y=\$16.75\\\\y=\frac{16.75}{1.2}\\\\y=\$13.96$

Hence, The price of Zoe's dinner before sales tax and tips is $13.96.

7 0

3 years ago