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kicyunya [14]
3 years ago
13

A student who correctly answered 60 questions a test received a score of 75%. How many questions were on the test

Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0
It would be 45 you take 60 x 75%


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A traveler is walking on a moving walkway in an airport The Traveler must walk back on the walkway to get a bag he forgot the Tr
hichkok12 [17]
Let the speed off the walk way be x and speed of the walkway be y
x+y=6....i
x-y=2....ii
adding the above equation we get:
2x=8
thus
x=4 ft/s
and
y=6-4=2 ft/s
thus the speed off the walk way is 4 ft/s
the speed of the moving walkway is 2 ft/s

6 0
3 years ago
What is a linear equation of a line with slope -4 and y-intercept 7
ololo11 [35]

The equation would look like

Y=-4x+7

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5 0
3 years ago
Solve 3x2 + 4x = 2. TEACH me how to solve this.. I know what to do once I have it in the right forum... but I do not understand
sertanlavr [38]
So if it is 3x^2+4x=2 then
set one side to zero
subtract 2 from both sides
3x^2+4x-2=0
this is not factorable by normal means so use quadratic formula which is if you have the equation in ax^2+bx+c=0 form you can solve for x if you put it into this equation quadratic formula x=\frac{-b+ \sqrt{b^2-4ac} }{2a} or  \frac{-b- \sqrt{b^2-4ac} }{2a} so if you were to input it into this equation you would get
a=3
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c=-2

the solution is x= \frac{-2+ \sqrt{10} }{3} or \frac{-2- \sqrt{10} }{3}
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7 0
2 years ago
Read 2 more answers
PLEASE HELP EASY MATH
prisoha [69]
Unit rates are easy you just take the first number and divide it by your second
15 divided by 5 is = 3
75 divided by 25 is = 3
80 divided by 4 is = 20
Please mark brainiest
Have a amazing day
4 0
1 year ago
Help me and explain
yan [13]

TOTAL IS $10


If the party costs $5 and each additional person is $1 and she invites 5 more 5 X 1 = 5


OR 1 + 1 + 1 + 1 + 1

4 0
3 years ago
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