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Luden [163]
3 years ago
8

A notebook costs $4.50 plus sales tax. After sales tax, the notebook is $4.86. What is the percent of tax?

Mathematics
1 answer:
irinina [24]3 years ago
6 0
8 percent because 8 percent of 4.5 is 0.36 and you just add and you get 4.86
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Joseph had 7 1/4 ounces of candy to share with his friends. He gave them 2 4/5 ounces of candy when they came over to play video
OleMash [197]
7 1/4 - 2 4/5
Turn the denominator into a common denominator for both fractions:
7 5/20 - 2 16/20
To subtract easier, turn the fractions into an improper fraction:
145/20 - 56/20
Subtract the numerators:
145 - 56 = 89 ---> 89/20
Simplify (to get an answer of):
4 9/20 
Add labels:
Joseph has 4 9/20 ounces of candy left
8 0
3 years ago
80 members decreased by 65%
mrs_skeptik [129]
The answer would be 28 because....
 
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4 0
3 years ago
A square has an area of 100m2 (100m squared)
Nonamiya [84]
Since we know that the area is 100 and we are dealing with a square, that means that all sides are equal. We know that the sides are all 10 because 10*10= 100.

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6 0
2 years ago
Could I get help with this ?
Leokris [45]

Answer:

top is -2,4 and bottom is 3,-2 ??

hope that what u need

Step-by-step explanation:

???

7 0
3 years ago
Is a || b? Explain using angle measurements. Your response should contain at least 3 full sentences describing how you determine
aliya0001 [1]

9514 1404 393

Answer:

  no

Step-by-step explanation:

Angles 6 and 9 are alternate interior angles where transversal 'a' crosses parallel lines p and q. As such, they are congruent. This means the measure of angle 6 is the same as that of angle 9, 110°.

Angles 6 and 8 are <em>corresponding</em> angles. If lines 'a' and 'b' were parallel, those angles would be congruent. We know angle 6 has a measure of 110° and angle 8 has a measure of 70°, so the angles are not congruent. Hence, lines 'a' and 'b' are not parallel.

__

<em>Alternate solutions</em>

Since you are not allowed to plagiarize my answer, you may be interested in other ways to show the same thing. The basic idea is to use angle relationships where transversals cross parallel lines. Ones that can be useful here are ...

  • corresponding angles are congruent
  • vertical angles are congruent*
  • alternate interior (or exterior) angles are congruent
  • sequential interior (or exterior) angles are supplementary.
  • angles of a linear pair are supplementary*

The relations marked with an asterisk (*) apply where <em>any</em> lines cross, and have no specific relationship to parallel lines. The remaining relationships only occur if the lines are parallel. Showing one of those is not true will show that the lines are not parallel.

8 0
3 years ago
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