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goldenfox [79]
3 years ago
15

What is the the value of x? Enter uour answer in the box. 91°, 8x+3°,10x-4°

Mathematics
2 answers:
klemol [59]3 years ago
8 0

Answer:

The value of x is 5

Step-by-step explanation:

In triangle ABC

Using Angle Sum property of triangle to find the value of x.

Angle Sum property: The sum of all angles of a triangle is 180.

\angle A+\angle B+\angle C=180^{\circ}

91^{\circ}+(10x-4)^{\circ}+(8x+3)^{\circ}=180^{\circ}

10x+8x+90=180

18x=180-90

x=5

Hence, The value of x is 5

zzz [600]3 years ago
5 0

Answer:

x = 5 is the right answer.

Step-by-step explanation:

As we know sum of all angles in a triangle is 180°.Therefore in this question we will form an equation.

Sum of all the angles of a triangle = 180

91 + 10x - 4 +8x +3 = 180

90 + 18x = 180

18x + 90 - 90 = 180 - 90

18x = 90

x = 90÷18 = 5

Therefore x = 5 is the right answer.

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Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that
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Answer:

y=28.5x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx

In this problem

Let

x------> the number of gallons

y------> the number of miles

the relationship between the number of miles and the gallons of gas represent a linear direct variation

The constant of proportionality k is equal to the slope m

m=\frac{465.3}{16.5}= 28.2\frac{miles}{gallon}

therefore

the equation of the linear equation

y=28.5x


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3 years ago
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alexdok [17]

Answer:

7 years

Step-by-step explanation:

Given that:

Let Richard's age = x

Elder sister's age = 2x

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2x² - 4x - 70 = 0

x² - 2x - 35 = 0

x² - 7x + 5x - 35 = 0

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(x - 7) or (x + 5) = 0

x = 7 or x = - 5

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Find slope for 3y=-4x+6 please help asap :)
bogdanovich [222]

Answer: the slope would be -4/3 and the y intercept is 2

Step-by-step explanation: you would have to divide both sides by 3 to get y by itself. that leaves you with -4/3x + 2

4 0
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Is this the correct answer
enot [183]

Answer:

It should be correct.

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Answer:

a) x-4+9

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