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Dmitriy789 [7]
2 years ago
10

Alana took a math quiz last week. She got 12 out of 20 problems correct. What percentage did Alana get correct?

Mathematics
1 answer:
Deffense [45]2 years ago
4 0

Answer:

60%

Step-by-step explanation:

The fraction 12/20 in simplest form would be 6/10 which come be converted to a percentage. (6x10)/(10x10)=60/100 or 60%.

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Plsss help me I don’t understand!!
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Answer:

11

Step-by-step explanation:

in the "score" section all you do is add all them up. And because there is a negative for ALL the numbers, all you do is add a negative after you add all the SCORES

6 0
3 years ago
A mouse climbs up a well of 86 meters. It advances 14 meters during the night, but during the day it retreats 2. The mouse will
Deffense [45]

Step-by-step explanation:

we assume day and night are equally long.

and the mouse will start at night of day 1.

then, on day 2, it will first retreat 2 meters (during daylight) and then advance 14 meters (at night).

so, on every full day, the mouse will effectively advance 12 meters (-2 + 14 = 12).

with a starting value of 14 (the first night).

so, we are getting an arithmetic sequence

an = an-1 + c

c = 12 in our case.

a1 = 14

a2 = a1 + 12 = 14+12 = 26

a3 = a2 + 12 = a1 + 12 + 12 = 14 + 2×12 = 38

an = a1 + (n-1)×12 = 14 + 12(n-1)

at what n will it reach 86 ?

86 = 14 + 12(n-1) = 14 + 12n - 12 = 2 + 12n

84 = 12n

n = 7

so, on the 7th day the mouse will reach the surface (if we truly count the first starting night day 1 - this is up to your teacher, but I would).

7 0
2 years ago
Show how 2.03x1.2x0.5 is multiply
Mama L [17]
2.03
×
1.2
---------
406
+
2030
----------
6036
×
0.5
----------
3.0180 either 3.0180 is the anwser or 1.218
7 0
3 years ago
I am very confused can I please have help​
weqwewe [10]

Step-by-step explanation:

6*8+10*4+5*4=48+40+20=108

5 0
2 years ago
Read 2 more answers
Nancy needs at least 1000 gigabytes of storage to take pictures and videos on her upcoming vacation. She
malfutka [58]

Answer:

the text side 5.45 equivalent to 5/45

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2 years ago
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