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3 years ago

Lauren's house is 30 feet wide. its length is 2 1/2 times its width. how long is lauren's house?

2 answers:

galina1969 [7]3 years ago

7 0

You are trying to solve the length of the house. Let x equal the length of the house. The length of the house is 2 1/2, or 2.5 times its width. The width of the house is 30 feet.

Your equation should look like this:
x = 30(2.5)

Mutiply 30 ft. times 2.5 to get 750 ft.

x = 750 ft.

Don't forget to use your unit of measurement in the answer! You are working in feet.

vitfil [10]3 years ago

5 0

Answer:

75 FT

Step-by-step explanation:

I = LENGTH

I=2 1/2W

I=2 1/2*30

I=75 FT

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Please help! Really need help :')

snow_lady [41]

In the above givem figures all the angles can be found by complementary pair of angles.

What do you mean by complementary pair of angles?

There are basically two types of pair of angles i.e. Supplementary & Complementary.
Supplementary means that sum of two angles is 180°. It is also known as linear pair of angles. It is always formed on straight line.
Complementary pair of angle is that when sum of both angles is 90°. It is formed when a right angle is bisected.

<h3>Fun Fact: All angles of a square and rectangle are of 90°.</h3>

∠A+45°=90°

∠A+45°=90° ∠A=90°-45°

∠A+45°=90° ∠A=90°-45° ∠A=45°

Hence, ∠A is 45°

 ∠B+65°=90°

 ∠B=90°-65°

 ∠B=25°

Hence, ∠B is 25°

 ∠C+52°=90°

 ∠C=90°-52°

 ∠C=38°

Hence, ∠C is 38°

 ∠D+40°+34°=90°

 ∠D+74°=90°

 ∠D=90°-74°

 ∠D=16°

Hence, ∠D is 16°

3 0

3 years ago

Find the lateral area and the surface area of the composite solid. Keep answer in exact form.

lbvjy [14]

Answer:

a) Lateral area of the solid = 2011.43 $cm^{2}$

b) Surface area of the solid = 2544 $cm^{2}$

Step-by-step explanation:

a) Lateral area of the figure = 2 $\pi$ rh

where; r is the radius of the cylinder, and h is its height.

Lateral area of the figure = 2 x $\frac{22}{7}$ x 10 x 32

= 2011.43 $cm^{2}$

b) The surface area = 2 $\pi$ r(r + h) - 2( $\frac{1}{2}$ x b x h)

= 2 $\pi$ r(r + h) - (b x h)

The height of the isosceles triangle can be determined by applying the Pythagoras theorem to have,

$10^{2}$ = $6^{2}$ + $h^{2}$

100 = 36 + $h^{2}$

$h^{2}$ = 100 - 36

= 64

h = $\sqrt{64}$

= 8

h = 8 cm

The surface area of the solid = 2 x $\frac{22}{7}$ x 10 (10 + 32) - 12 x 8

= 2640 - 96

= 2544

The surface area of the solid is 2544 $cm^{2}$ .

4 0

3 years ago

Find the value of $B - A$ if the graph of $Ax + By = 3$ passes through the point $(-7,2),$ and is parallel to the graph of $x +

serious [3.7K]

From x + 3y = -5, y = -x/3 - 5, so the slope of the line is -1/3. The slope of the new line is also -1/3, so y = -x/3 + B. Pugging in x = 2 and y = -7, we get -7 = -2/3 + B, so B = -19/3.

Then the line is y = -x/3 - 19/3. Then 3y = -x - 19, so 3y + x = -19. We want the right-hand side to be 3, so we mutiply both sides by -3/19: -9/19*y - 3/19*x = 3. Therefore, A + B = -9/19 - 3/19 = -12/19.

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3 years ago

Find the mean, median, and mode of the data set.

Alex777 [14]

I believe that the answer to this is b

7 0

3 years ago

Read 2 more answers

Identify the correct vertex form of the following quadratic equation: f(x) = -6x2 - 12x - 13

Lapatulllka [165]

Y=-6(x+1)^2-7

This Is The Correct Answer :), Hope This Helps!

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3 years ago