3 years ago

Andrew took a math test with 40 questions. If he scored an 85% how many questions did he get correct

Mathematics

2 answers:

almond37 [142]3 years ago

6 0

Answer:

Step-by-step explanation:

1.) First, you have to turn 85% into a decimal

2.)That would be .85

3.) Then you have to multiply 40 by .85

4.) You get 34

jolli1 [7]3 years ago

3 0

Answer:

100 possible points divided by the #of questions equals 2.5 / 85% divided by 2.5 = 34

Step-by-step explanation:

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s2008m [1.1K]

Mulitply the volume value by 10000.

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2 years ago

IfA=(-2,-4) and B=(-8,4), what is the length of AB?

lisabon 2012 [21]

Answer:

<h2>10 units </h2>

solution,

A(-2,-4)--->(X1,y1)

B(-8,4)----->(x2,y2)

now,

$ab = \sqrt{(x2 - x1) ^{2} + {(y2 - y1)}^{2} } \\ \: \: \: \: = \sqrt{ (- 8 - ( - 2)) ^{2} + (4 - ( - 4)) ^{2} } \\ \: \: \: = \sqrt{( - 8 + 2) ^{2} + {(4 + 4)}^{2} } \\ \: \: \: = \sqrt{( - 6) ^{2} + {(8)}^{2} } \\ \: \: = \sqrt{36 + 64} \\ \: \: \: = \sqrt{100} \\ \: \: \: = \sqrt{ {(10)}^{2} } \\ \: \: \: \: = 10 \: units$