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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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The coordinates of the vertices of ANGLE RST are R(-3,5), and S(4,5), and T(4,-2). Find the side lengths to the nearest hundredt

e-lub [12.9K]

Side lengths: RS=7 and ST=7, and angle=90 degrees

Why?

Since second coordinates of R and S are the same so we can just count the length by adding first coordinate of R and first coordinate of S= |-3|+4=7

Since first coordinates of R is the same as first coordinate of T so we can just count the length by adding second coordinates of S and T=5+|-2|=7

Angle: RST is =90 degrees because triangle RST is right angled triangle. Why? Because RS is parallel to X axis(the same second coordinates of R and S) and ST is parallel to Y axis(the same coordinates of S and T) .

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3 years ago

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Alborosie

$\huge\underline\pink{✏ANSWER}$

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2 years ago

At a shelter, 15% of the dogs are puppies. There are 60 dogs at the shelter. How many are puppies?

Jet001 [13]

60*.15=9
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3 years ago

Read 2 more answers

How many times dose 12 go into 41

jonny [76]

Answer:

3.42

Step-by-step explanation:

41/12 is 3.42

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2 years ago

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A soft-drink machine can be regulated so that it discharges an average of μ oz. per cup. If the ounces of fill are Normally dist

sattari [20]

Answer:

μ = 5.068 oz

Step-by-step explanation:

Normal distribution formula to use the table attached

Z = (x - μ)/σ

where μ is mean, σ is standard deviation, Z is on x-axis and x is a desired point.

98% of 6-oz. cups will not overflow means that the area below the curve is equal to 0.49; note that the curve is symmetrical respect zero, so, 98% of the cases relied between the interval (μ - some value) and (μ + some value)].

From table attached, area = 0.49 when Z = 2.33. From data, σ = 0.4 oz and x = 6 oz (maximum capacity of the cup). Isolating x from the formula gives

Z = (x - μ)/σ

2.33 = (6 - μ)/0.4

μ = 6 - 2.33*0.4

μ = 5.068

This means that with a mean of 5 oz and a standard deviation of 0.4 oz, the machine will discharge a maximum of 6 oz in the 98% of the cases.

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3 years ago