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3 years ago

Answer this pls asap

Mathematics

2 answers:

Elena-2011 [213]3 years ago

6 0

Step-by-step explanation:

(2x-11)°+(6x-7)°=180°(being sum of the angle of the triangle is 180°

=2x-11+6x-7=180°

=8x+4=180°

=8x=180-4

=8x=176

=x=176/8

=x=22

Scorpion4ik [409]3 years ago

5 0

Answer:

24.75

Step-by-step explanation:

2x-11 + 6x-7 =180

8x-18=180

8x=198 /8

x=24.75

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svlad2 [7]

Answer:

19/24

Step-by-step explanation:

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s = (19 - 0) / (8 - -16)

s = 19/24

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3 years ago

The sum of two numbers is 15 if the sum of their reciprocal is 3/10 find the numbers

malfutka [58]

Answer:

The numbers are 10 and 5

Step-by-step explanation:

x+y=15

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4 years ago

-0.5x=3.6 F. -72 G. -7.2 H. 7.2 I. 72

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Step-by-step explanation:

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2 years ago

Express 160 as product of their prime factor

MariettaO [177]

Answer: 5x2^5

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3 years ago

Jamie is buying 5 concert tickets, and he wants his total cost to be no more than $4 Above or below $80. Which inequality models

kumpel [21]

Answer:

Option C $\left|80-5x\right|\le 4$

Step-by-step explanation:

Let

x ----> the cost of the concert ticket

we know that

The total cost to be no more than $4 Above $80

$5x\leq 80+4$

Solve for x

$x\leq \$16.80$

The total cost to be no more than $4 below $80

$5x\geq 80-4$

Solve for x

$5x\geq 76$

$x\geq \$15.2$

therefore

The inequality that represent this problem is

$\left|5x-80\right|\le 4$

Verify

First solution (positive case)

$+(5x-80)\le 4$

$5x\le 80+4$

Solve for x

$x\leq \$16.80$ ----> is ok

Second solution (negative case)

$-(5x-80)\le 4$

Multiply by -1 both sides

$(5x-80)\ge -4$

$5x\geq 80-4$

Solve for x

$5x\geq 76$

$x\geq \$15.2$ ---> is ok

Remember that

$\left|5x-80\right|\le 4$ is equivalent to $\left|80-5x\right|\le 4$

Because is a absolute value

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3 years ago