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3 years ago

Simplify 2/3×1/6+5/3×7/2-13/8×2/3 pls help with this

Mathematics

1 answer:

tensa zangetsu [6.8K]3 years ago

3 0

The first picture shows you how to solve it and the second picture is showing you how to get your answer in simplest form.

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Plss help me with my questions plsss <br>plss help me plsss

yarga [219]

Answer:

11. 3.8 12. .009 13. 5.1 14. .678 15. 37.0800

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3 years ago

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Round the<br> nearest hundreds<br> Place<br> 52% of 210

Ket [755]

Answer:

109.2

Step-by-step explanation:

Of means multiply

52% * 210

Change to decimal form

.52 * 210

109.2

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3 years ago

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The area of the entire rectangle to the right is x(x+4). Find another expression for this area by finding the sum of the areas o

Ainat [17]

Answer:

x² + 4x

Step-by-step explanation:

Divide the rectangle into a square with sides 'x' and a rectangle with sides 'x' and '4'

(x)(x) + (4)(x)

x² + 4x

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3 years ago

Vince has a rectangular rug in his room with an area of 10 ft the length of the rug is 18 inches longer than the width what coul

aev [14]

The length of the rug is 4 ft.

The width of the rug is 2.5 ft.

Explanation:

The area of the rug is 10 ft.

The length of the rug be l.

Let us convert the inches to feet.

Thus, $18 inches = 1.5 ft$

Thus, the length of the rug is $l=1.5+w$

Let the width of the rug be w.

Substituting these values in the formula of area of the rectangle, we get,

$A=length\times width$

$10=(1.5+w)(w)\\10=1.5w+w^2\\w^2+1.5w-10=0$

Solving the expression using the quadratic formula,

$w=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Substituting the values, we have,

$$w=\frac{-15 \pm \sqrt{15^{2}-4 \cdot 10(-100)}}{2 \cdot 10}\\$

$w=\frac{-15 \pm \sqrt{4225}}{20}$

$w=\frac{-15 \pm 65}{2 0}$

Thus,

$w=\frac{-15 + 65}{2 0}\\w=\frac{50}{20} \\w=2.5$ and $w=\frac{-15 - 65}{2 0}\\w=\frac{-80}{20} \\w=-4$

Since, the value of w cannot be negative, the value of w is 2.5ft

Thus, the width of the rug is 2.5ft

Substituting $w=2.5$ in $l=1.5+w$ , we get,

$l=1.5+2.5\\l=4$

Thus, the length of the rug is 4 ft.

4 0

3 years ago

Find the values of the variables and the measures of the angles

yuradex [85]

Answer:

x = 13

39° and 51°

Step-by-step explanation:

Angles in a triangle add up to 180 degrees.

This is a right angle triangle, so one side has a size of 90 degrees.

3x + 4x - 1 + 90 = 180

7x + 89 = 180

7x = 91

x = 91/7

x = 13

Put x as 13 to work out the size of the angles.

3(13) = 39

4(13) - 1

52 - 1 = 51

8 0

3 years ago

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