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2 years ago

Justine answered 68 questions correctly on and 80 question test. Express this amount as a fraction percent and decimal

Mathematics

2 answers:

Paladinen [302]2 years ago

7 0

Answer:

Percentage: 85%

Decimal: 0.85

Fraction: 85/100 or simplified version is 17/20

kupik [55]2 years ago

3 0

Answer: 0.85 or %85

Fraction = 68 over 80 divide by two twice 17 over

Percent = 68/80 = 0.85 x 100 = 85%

Decimal = 0.85

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Write the expression 3*3*3*3*3 in exponential notation

makvit [3.9K]

Answer:

3^5

Step-by-step explanation:

becuase 3*3*3*3*3

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2 years ago

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Given isosceles trapezoid TRHY, in units what is the length of b2 if the height is 13 units, b1 is 21 units, and the area is 215

GenaCL600 [577]

We are given a trapezoid TRHY.

Height of the trapezoid = 13 units.

b1 = 21 units and

Area = 215 units squares.

We need to find the length of b2.

We know formula for area of a trapezoid.

$A= \frac{1}{2} (b1+b2)\times h$

Plugging values in formula.

215 = $\frac{1}{2}$ (21+b2)× 13.

215 = 6.5(21+b2)

Dividing both sides by 6.5, we get

$\frac{215}{6.5}=\frac{6.5(21+b2)}{6.5}$

33.08 = 21+b2.

Subtracting 21 from both sides, we get

33.08-21 = 21-21+b2

b2 = 12.08.

<h3>Therefore, length of b2 is 12.08 units.</h3>

4 0

3 years ago

Help me please (I need the answer asap...)

Roman55 [17]

Answer: x = 6
x+x=19-7
2x=12
Hence the answer is x=6

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2 years ago

Read 2 more answers

HELP ME PLEASE!!!

zaharov [31]

The correct answer to this question would be answer choice B.

To convert the decimal 0.56 to a fraction, first set it to a fraction over 100 which would be 56/100.

Then, because the question asks for the fraction to be in simplest form, look for the greatest common factor of the numerator and denominator or 56 and 100.

To find it, list out all of their factors:

56: 1, 2, 4, 7, 8 , 14, 28, 56

100: 1, 2, 4, 5, 10,20,25,50,100

Notice that out of all the factors listed, the greatest common factor listed is 4. Because of this, divide both the numerator and denominator by 4 to simplify your fraction to your answer: 14/25

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2 years ago

What is the value of x in the equation 1/2x - 3/4 = 3/8 - 5/8

Kitty [74]

The answer

x = 1

step by step

$\frac{1}{2} x - \frac{3}{4} = \frac{3}{8} - \frac{5}{8} \\ \frac{1}{2} x = \frac{3}{8} - \frac{5}{8} + \frac{3}{4} \\ \frac{1}{2} x = \frac{3}{8} - \frac{5}{8} + \frac{6}{8} \\ \frac{1}{2}x = \frac{4}{8} \\ \frac{1}{2} x = \frac{1}{2} \\ x = 1$

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2 years ago