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Bumek [7]
2 years ago
12

Solve these equations by using subtraction.

Mathematics
1 answer:
tino4ka555 [31]2 years ago
8 0

Answer:

9)A=72

10)X=74

11)X=91/8

12)C=109

13)Y=14

14)B=211/12

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Help me with the picture please
Sergio [31]
<h3>Answer:  115</h3>

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

Explanation:

Refer to the diagram below. I've drawn diagonal that slopes upward. This diagonal cuts the quadrilateral into two triangles: One is equilateral and the other is isosceles.

The equilateral triangle marked in blue has all three angles 60 degrees each.

Note that the 60 and y angles combined to form 130, so,

60+y = 130

y = 130-60

y = 70

Then focus on the isosceles triangle (angles y, w and w). These three interior angles must add to 180

y+w+w = 180

70+2w = 180

2w = 180-70

2w = 110

w = 110/2

w = 55

This adds onto its adjacent neighbor of 60 to get w+60 = 55+60 = 115 degrees which is the value of x.

7 0
3 years ago
“Solve the system using elimination” im not good at math so can someone help me
iris [78.8K]

Answer:

No solutions

Step-by-step explanation:

i did this via substitution so i hope it isn't a problem

3x+y=4

6x+2y=−4

Step: Solve 3x+y=4for y:

3x+y+−3x=4+−3x(Add -3x to both sides)

y=−3x+4

Step: Substitute−3x+4foryin6x+2y=−4:

6x+2y=−4

6x+2(−3x+4)=−4

8=−4(Simplify both sides of the equation)

8+−8=−4+−8(Add -8 to both sides)

0=−12

so there are no solutions

hope this helps!!

8 0
3 years ago
What is 67% of 112.6
Luba_88 [7]
67/100 = x/112.6
67*112.6 = 100*x
7544.2=100x
7544.2/100 = 100x/100
75.442=x

75.442 is 67% of 112.6
6 0
4 years ago
Read 2 more answers
5 radians is the same as _____. <br><br> Round to the nearest hundredth of a degree.
Novay_Z [31]

Answer:

286.48°

Step-by-step explanation:

Given in the question that we have to convert 5 rad to degree.

we know that,

π = 180°

1rad = 180°/π

5rad = 180°(5)/π

         = 286.4788°

         ≈ 286.48° (nearest to hundredth)

So 5 rad is 286.48°

4 0
4 years ago
Read 2 more answers
Can someone help me find the answer to this please ??
Dafna1 [17]

Answer:

x=2, -1/3, -1

Step-by-step explanation:

8 0
3 years ago
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