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Katena32 [7]
2 years ago
6

Plzz help me with my summer school work

Mathematics
1 answer:
shutvik [7]2 years ago
6 0
I have summer school work too omg!!! it’s annoying
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Mr. Littles is building a triangular sandbox using three boards. He already has two boards that measure 9 feet and 12 feet. Sele
Bess [88]

Answer:

  • 9 feet, 15 feet, 19 feet

Step-by-step explanation:

<u><em> Options are: </em></u>

  • <em>2 feet </em>
  • <em>3 feet </em>
  • <em>9 feet </em>
  • <em>15 feet </em>
  • <em>19 feet </em>
  • <em>21 feet </em>
  • <em>30 feet</em>

<em>-------------------------------------</em>

Use the triangle inequality theorem: sum of any two side must be greater than the third side by length

  • 2 feet     ⇒  no, as 2 + 9 < 12
  • 3 feet     ⇒  no, as 3 + 9 = 12
  • 9 feet     ⇒  yes
  • 15 feet    ⇒  yes
  • 19 feet    ⇒  yes
  • 21 feet    ⇒  no, as 9 + 12 = 21
  • 30 feet  ⇒  no, as 9 + 12 < 30

6 0
2 years ago
The difference between a number divided by 3 and 4 is 20
Rzqust [24]
Set the number to x.

\frac{x}{3}-\frac{x}{4}=20
\frac{4x}{12}-\frac{3x}{12}=20
\frac{x}{12}=20
x=240

Thus, the number is 240.
8 0
2 years ago
I need so much help
laiz [17]
Question (1):

Price last week = $6.00
Price this week = $7.20

Increased = $7.20 - $6.00 = $1.20

Answer : Percentage increased = $1.20/$6.00 x 100 = 20%

Question (2):

Original Price = $90

Marked down = 35% of $90 = 0.35 x 90 = $31.50

Price after marked down = $90 - $31.50 = $58.50

Answer: Lilly will pay $58.50 for the football cleats.
6 0
3 years ago
Read 2 more answers
Use the slope formula to find the slope of the line passing through the given points.
Zanzabum
-1/3. Use the formula x1-x2/y1-y2
5 0
3 years ago
Read 2 more answers
If Ill m, solve for x.<br> (4x - 7)<br> (7x-61)<br> X =
Mars2501 [29]
4x-7=7x-61
-7=3x-61
54=3x
Answer
X=18
4 0
2 years ago
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