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Dmitriy789 [7]
3 years ago
5

Find the value of x

Mathematics
2 answers:
Hoochie [10]3 years ago
8 0
Answer: x = 135

Steps:
(x - 5) + 50 = 180
x - 5 = 180 -50
x - 5 = 130
x = 130 + 5
x = 135

Check:
(x - 5) + 50 = 180
(135 - 5) + 50 = 180
130 + 50 = 180
180 = 180 ✅
viktelen [127]3 years ago
6 0

Answer:

x=135

Step-by-step explanation:

The two angles are supplementary, meaning they both add up to 180°.

So to find the value of one angle, simply subtract 50 from 180.

180-50=130

So now we know that 130 is equal to the expression.

x-5=130

Add 5 to both sides.

x=135

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Can I get help with these too? Thank you!!!!!
Anastasy [175]
For ABC:

The interior angle of C is 180 - 142 = 38
The three interior angles add up to 180°
(2x - 15) + (x - 5) + 38 = 180
3x - 20 + 38 = 180
3x + 18 = 180
3x = 162
x = 54

The measure of angle ABC = x - 5 = 54 - 5 = 49

For JKL:
The interior angle of L is 180 - 100 = 80°
The 3 interior angles add up to 180°
(2x + 27) + (2x - 11) + 80 = 180
4x + 16 + 80 = 180
4x + 96 = 180
4x = 84
x = 21

The measure of angle JKL is 2x - 11 = 2(21) - 11 = 42 - 11 = 31°
7 0
3 years ago
A TV has a listed price of $885.98 before tax. If the sales tax rate is 8.5%, find the total cost of the TV with sales tax
Butoxors [25]

Answer:

net amount $885.98 tax at 8.5% is $75.31 gross amount is $961.29

8 0
3 years ago
More help :3 please and thnx
Mariana [72]

Answer:

a. there's a lot of options but here are a few: 1 and 5, 5 and 6, 2 and 1, 2 and 6

b. also a lot of options but here are a few: 1 and 6, 5 and 2, 3 and 8, 4 and 7

Step-by-step explanation:

supplementary angles are two angles that add up to 180 degrees, so essentially two angles that, combined, are equal to a straight line.

vertical angles are angles that are opposite each other when two lines cross.

6 0
3 years ago
I don’t get this can someone explain this
LekaFEV [45]

Answer:

15.7 units

Step-by-step explanation:

AB = 6, BC = 3

Therefore by Pythagoras theorem

AC = \sqrt{45}

perimeter \: of \:  \triangle \: ABC \\  = 6 + 3 +  \sqrt{45}  \\  = 9 + 6.70820393 \\  = 9 + 6.7 \\  = 15.7\: units

3 0
3 years ago
A music store buys a trumpet for $80. They want to make a 35% profit. How much are they going to increase the price?
elena-s [515]

Answer:

They should increase their price by $28.

Step-by-step explanation:

First find out what 35% of 80 is. Do so by multiplying 80 by 35% in its decimal form - .35.

80*.35=28.

This means that they have to increase their price by at least 28 dollars to make a profit.

The new price of the instrument should be $108 - $80 increased by 35%.

Hope this helps :)

4 0
3 years ago
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