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AnnyKZ [126]
2 years ago
8

I NEED HELP ON DOING THIS

Mathematics
2 answers:
-BARSIC- [3]2 years ago
5 0
1. Write out an equation to solve this.
2x + 7x - 9 = 90 degrees

2. Add 2x to 7x
9x - 9 = 90 degrees

3. Add 9 to both sides of the equal sign
9x = 99 degrees

4. Divide 9x by 9 to get x
x = 11 degrees
stira [4]2 years ago
4 0
If all the angles add up to 90 degrees then you can set the equation 7x-9*2x=90
Simplify
9x-9=90
Plus 9 both sides
9x=99
Divide by 9 on both sides
X=11
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What is the probability of spinning the spinner below once and having it land on blue or an even number?
spayn [35]
A. 3/16 would be the answer


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3 years ago
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Fiona found 47 pens for $3. Please help Fiona by figuring out the ratio. (round to 2 decimal places)
vitfil [10]

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3 0
2 years ago
6.5 x 1/9 please help
hjlf

Answer:

13/18

Step-by-step explanation:

  • 6.5 · 1/9 = 6 5/10 · 1/9
  • 6 5/10 · 1/9 = 6 1/2 · 1/9
  • 6 1/2 · 1/9 = 13/2 · 1/9
  • 13/2 · 1/9 = 13/18

Therefore, 6.5 · 1/9 = 13/18.

7 0
2 years ago
Solve:<br> -8(x - 3) + 5x &lt; 9(x + 12)<br> This is Algebra 1
Flauer [41]

Answer:

x>−7

Step-by-step explanation:

left side:

-8(x-3)+5x

distribute -8 into (x-3)

-8x+24+5x

combine like terms

-3x+24

right side:

9(x+12)

distribute 9 into (x+12)

9x+108

-3x+24<9x+108

Subtract 24 on both sides

-3x< 9x+108-24

combine like terms

-3x<9x+84

Subtract 9x on both sides

-3x-9x<+84

combine like terms again

-12x<84

Multiply both sides by -1 (reverse the inequality)

(-12x)(-1)>84(-1)

12x>-84

divide both sides with 12

\frac{12x}{12}>\frac{-84}{12}

x>−7

hope this helps

4 0
3 years ago
Read 2 more answers
3a2+4b for a=2 and b=3
Kobotan [32]
First you’ll multiply to get 3x2x2 + 4x3. Then add them together. 12+12=24
4 0
3 years ago
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