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chubhunter [2.5K]
3 years ago
15

Tiffany answered 90% of the questions on her test correctly. There were 50 questions on the test. How many questions did she get

right?
Mathematics
2 answers:
jarptica [38.1K]3 years ago
7 0
Tiffany got 45 questions right
saw5 [17]3 years ago
3 0
45 questions was how many she got right.
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8 grade math dont really uderstand it so please explain also
pishuonlain [190]

Answer: Girls weekly: 25; Girls never:40; boys yearly: 25; boys never: 20; boys total:80 monthly total: 30

Step-by-step explanation:

You have to figure it out by adding or subtracting where ever it needs to be like in girls weekly you have to subtract the weekly total and the boys weekly to figure it out.

5 0
3 years ago
The minimum level of inventory needed to meet customer demand is called the
Licemer1 [7]

Answer:

minimum level of stock

4 0
3 years ago
ANYONE...........help​
KATRIN_1 [288]

Answer:

  • 1 cm

Step-by-step explanation:

<u>Sides of the picture added margin:</u>

  • l = 8 + 2x
  • w = 5 + 2x
  • A(margin) = 30 cm²

<u>Solution</u>:

  • A(margin) = Total area - A(picture)
  • (8 + 2x)(5 + 2x) - 5*8 = 30
  • 4x² + 10x + 16x + 40 - 40 - 30 = 0
  • 4x² + 26x - 30 = 0
  • 2x² + 13x - 15 = 0
  • x = (-13 + √(13² + 2*4*15))/4
  • x = (-13 + 17)/4
  • x = 1 cm

Note. The other root is ignored as negative.

3 0
3 years ago
Teri went shopping with $300. Her Christmas shopping list is: 5 barbies for $10.50 each,, earbuds for $45, 3 sweaters for $22 ea
Romashka [77]

5 times 10.50 = $52.5

An additional $45

3 times 22 = $66

An other additional $65

The total price her shopping list costs is 229.5

Now, $300 - $229.5 = $70.5

Teri will have $70.50 left after buying these items.

3 0
3 years ago
What is (57/tan30°)m^2
iVinArrow [24]
57\sqrt{3}m^2. Enjoy!
6 0
3 years ago
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