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Phoenix [80]
4 years ago
7

A test has 20 questions how many do you need to answer correctly in order to get 4/5 of them right

Mathematics
2 answers:
Ket [755]4 years ago
7 0

4/5 x 20 = 16


Answer: 16 questions

lora16 [44]4 years ago
5 0

To figure out the question, we can do 20 multiplied by 4/5, aka 0.8, and we get 16 questions as our answer!

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The red lines on the diagram show the layout for a running event. Runners will race around the triangle-shaped grassy area. What
almond37 [142]

Answer:

Total distance = 5.754 km

Step-by-step explanation:

Red lines of the right triangle show the layout of the race course.

Total length of the race course = Perimeter of the triangle

Perimeter of the triangle = Sum of the measures of all three sides

                                         = 1.83 + 1.524 + 2.4

                                         = 5.754 km

Therefore, total distance of the race course is 5.754 km.

3 0
4 years ago
FInd an equation of the line that passes through the point (3,-5) and is parallel to 4x=1+2y
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Answer:

y=2x-11

Step-by-step explanation:

Put it in the form y=mx+b=>y=2x-1/2. Instead of -1/2, put it as b, since you want it to go through 3,-5. y=2m+b when it goes through (3,-5) happens when -5=3*2-b. Do algebra, and get b as 11. That means the equation is y=2x-11.

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3 years ago
Consider a normally distributed data set with a mean of 75 and a standard deviation of 5. If
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4 years ago
A property sells for $140,000 two years after it was purchased. If the annual appreciation rate is 6%, how much did the original
kykrilka [37]

Answer:

$123,200

Step-by-step explanation:

0.06 x 2 = 0.12

140,000 x 0.12 = 16,800

140,000 - 16,800 = 123,200

3 0
3 years ago
A.1.5
telo118 [61]

Answer:

x=50 y=10

Step-by-step explanation:

8 0
3 years ago
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