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pshichka [43]
3 years ago
10

Angle Pairs-Relationships

Mathematics
1 answer:
mario62 [17]3 years ago
4 0

Answer: Angle 1 is 36

Angle 2 is 54

Step-by-step explanation:

x+18+3x=90

4x+18=90

4x=72

x=18

18+18=36

18*3=54

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Mr Jones has 20,000 to invest. He invests part at 6% and part at 7%, if hr earns 1,280 in interest after 1 year, how much did he
MariettaO [177]


Let x be the amount he invests at 6%

1280 = 0.06x + 0.07(20000 - x)
1280 = 0.06x + 1400 - 0.07x
1280 - 1400 = -0.01x
-120 / -0.01 = x
x = 12000

Therefore, he invests $12,000 at 6% and $8,000 at 7%

6 0
3 years ago
Select the graph of the solution. Click on the graph until the correct one appears.
Yuki888 [10]

x2

So, Graph of Image 1 is correct.

Step-by-step explanation:

We need to find the graph of the solution o the equation |x|+3>5

Solving:

|x|+3>5

Adding -3 on both sides

|x|+3-3>5-3

|x|>2

Applying absolute rule: if |u|>a then u>a or u<-a

x2

So, all values greater than 2 and less than -2 are included.

So, Graph of Image 1 is correct.

Keywords: Solving inequalities

Learn more about Solving inequalities at:

  • brainly.com/question/1465430
  • brainly.com/question/6703816
  • brainly.com/question/11788572
  • brainly.com/question/4192226

#learnwithBrainly

3 0
3 years ago
In how many ways can Susan arrange 10 books into 3 slots on her bookshelf?
ahrayia [7]
Hello there,

If she has 10 books and she can arrange it 3 ways on her bookshelf, you just multiply 10 and 3

10 x 3= 30

Susan can arrange 10 books into 3 slots 30 ways.

Hope this helps!
4 0
3 years ago
Give the domain of the variable in the following equation. 1/5x + 1/4x = x/5​
Ghella [55]

Answer: x = 0

Step-by-step explanation: Multiply to remove the fraction, then set equal to 0 and solve.

8 0
3 years ago
Factor the expression: <br><br> x2-3x-10
11111nata11111 [884]

Answer:

Step-by-step explanation:

7 0
3 years ago
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