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3 years ago

PLZZ ANSWER ILL GIVE YOU BRAINLYIST

Mathematics

1 answer:

Monica [59]3 years ago

4 0

Answer:

29.4 (B)

Step-by-step explanation:

<u>First, get rid of parentheses by multiplying.</u>

5(3 1/5 + 2 4/5) = 16 + 14 = 30.

Subtract 0.6

30 - 0.6 = 29.4

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Determine which number has a lesser magnitude.<br> a<br> -4 and -5

Stells [14]

Answer: -4

This is because -4 is closer to 0 on the number line, when compared to -5.

You are basically measuring the distances from 0 to determine magnitude.

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3 years ago

Find the sides, and the value of x and y.

Gelneren [198K]

Answer:

$\huge\boxed{x=15;\ y=4}$

Step-by-step explanation:

Proportion:

$\dfrac{x}{18}=\dfrac{5}{6}\qquad|\text{cross multiply}\\\\(x)(6)=(18)(5)\\\\6x=90\qquad|\text{divide both sides by 6}\\\\\huge\boxed{x=15}$

$\dfrac{y}{5}=\dfrac{12}{x}$

substitute x = 15:

$\dfrac{y}{5}=\dfrac{12:3}{15:3}\\\\\dfrac{y}{5}=\dfrac{4}{5}\qquad|\text{cross multiply}\\\\(y)(5)=(5)(4)\\\\5y=20\qquad|\text{divide both sides by 5}\\\\\huge\boxed{y=4}$

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3 years ago

Use the graph to state the solution for the system.

Svet_ta [14]

Step-by-step explanation:

I. x - y = 4 --> y = x - 4

II. x + y = 4 --> y = 4 - x

Solution is x = 4 and y = 0

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3 years ago

Can someone please calculate the length ?

masya89 [10]

<h3>Answer: 11/20</h3>

=====================================================

Work Shown:

x = unknown horizontal length

1/5 = 0.2

Perimeter = 2*(width + length)

P = 2*(0.2 + x)

P = 0.4 + 2x

Set this equal to the given perimeter of 1 & 1/2 = 1.5 and solve for x

0.4 + 2x = 1.5

2x = 1.5-0.4

2x = 1.1

x = (1.1)/2

x = 0.55

x = 55/100

x = (5*11)/(5*20)

x = 11/20

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3 years ago

Trigonometry

schepotkina [342]

The area of the triangle ABC is 207.5 square units.

Explanation:

The measurements of the sides of the triangle are $AB=19$ , $AC=24$ and $m\angle A=65^{\circ}$

We need to determine the area of the triangle ABC.

<u>Area of the triangle:</u>

The area of the triangle can be determined using the formula,

${Area}=\frac{1}{2} b c \sin A$

where $b=19$ , $c=24$ and $m\angle A=65^{\circ}$

Substituting these values in the above formula, we get,

${Area}=\frac{1}{2}(19)(24) \sin 65^{\circ}$

Simplifying the values, we get,

${Area}=\frac{1}{2}(456) (0.91)$

${Area}=\frac{1}{2}(414.96)$

${Area}=207.48$

Rounding off to the nearest tenth, we get,

${Area}=207.5$

Thus, the area of the triangle ABC is 207.5 square units.

5 0

3 years ago

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