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Tems11 [23]
3 years ago
9

Please help me with this

Mathematics
2 answers:
masha68 [24]3 years ago
7 0

Answer:

12

Step-by-step explanation:

10x-11+3x-2+3x+1=180

16x-12=180

16x=192

x=12

Luba_88 [7]3 years ago
5 0

Answer:

12

Step-by-step explanation:

The sum of three angles is 180°

(3x + 1) + (3x-2) + (10x -11) = 180°

16x -12 = 180

16x = 192

x = 12

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How do you solve 135x42? (step by step please)
mojhsa [17]

Answer:

5,670

Step-by-step explanation:

how do you solve 135x42? (step by step please)

Answer :

= 135 x 42

= 5,670

3 0
3 years ago
What is the volume of the triangular prism below
cestrela7 [59]
The volume is 4.5 ft^3.

7 0
3 years ago
An expression is shown below.<br><br><br> What is the value of the expression?
dsp73

Answer:

Step-by-step explanation:

First you need to set up the equation 2/3+1/4/1/2, and we know that there is a stratgey for dividing fractions as well. But first, we need to find the least common fator for 2/3 and 1/4 which is twelve which would be 8/12+3/12 which is 11/12 and 11/12 dividing by 1/2 is 22/12 since all you need to do is do the keep change flip method which would give you an answer of 1 10/12 or 1 5/6

6 0
3 years ago
What percent of 19 is 4.75?
IrinaK [193]

Answer:

25%

Step-by-step explanation:

1. 4.75/19 = .25

2. .25 = 25%

8 0
3 years ago
From the graph; calculate: E=
Ket [755]
<h3>Answer:</h3>

c) 7π cm

<h3>Step-by-step explanation:</h3>

The length of an arc (s) is related to its central angle (θ) and the radius of the circle (r) by ...

... s = rθ . . . . . . . . . θ in radians

Here, the central angle measures are given in "grads". There are 400 grads in a circle, so 200 grads in π radians. To convert grads to radians, we multiply the number of grads by π/(200g).

Then the lengths of the arcs are ...

... arc AB = (20 cm)·(50g·(π/(200g))) = 5π cm

... arc BC = (10 cm)·(40g·(π/(200g))) = 2π cm

E = arc AB + arc BC = 5π cm + 2π cm = 7π cm

5 0
4 years ago
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