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allsm [11]
3 years ago
7

eric has a riddle: " i am thinking of a fraction that is equivalent to 2/5 and the numerator is 18 less than the denominator." w

hat is his fraction explain how you know.​
Mathematics
1 answer:
dezoksy [38]3 years ago
5 0

Answer:

12/30

Step-by-step explanation:

So we know that the denominator-numerator=18

And we also know that it's equal to 4/10 or 2/5.

Soooooooooooooo the most easiest is just to trial and error: 12/30

But I don't really know the more complex formula...

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Minnie has 16 old posters and 25 new posters. Amanda has 25 old posters and 16 new posters. Who has more posters? Explain
Orlov [11]

Answer:

Minnie and Amanda have the same amount of posters.

Step-by-step explanation:

Add 16 and 25 posters and Minnie will have a total of 41 posters.

Add 25 and 16 posters and Amanda will have a total of 41 posters.

Each have the same amount of posters regardless if they are new or old.

3 0
3 years ago
Read 2 more answers
What is 43.78 in word form
KengaRu [80]
43.78 = forty three and seventy eight hundredths.
8 0
3 years ago
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Factor 3h2 – 11h - 42
Zina [86]
The answer is D
3*-42=-126
The factors of -126 that add to -11 are 7 and -18
replace -11h with 7h-18h
3h^2 + 7h - 18h - 42
Factor the first two terms and last two terms
h(3h+7) - 6(3h+7)
See how the two parentheses are the same?
THE ANSWER IS BELOW!!
(h-6)(3h+7)
the first parentheses has the terms that were outside, and the second has the original bracketed terms
This matches option D (it just multiplies the terms backwards, which gives the same result)
7 0
4 years ago
Read 2 more answers
13 = -7 + 9x - 5x<br> X =
brilliants [131]

Answer:

x = 5

Step-by-step explanation:

Given

13 = - 7 + 9x - 5x , that is

13 = - 7 + 4x ( add 7 to both sides )

20 = 4x ( divide both sides by 4 )

5 = x

3 0
3 years ago
(5x2)x7?<br> What is the answer??????????????????????????????????????????????????????????????????
AlexFokin [52]

Answer:

70

Step-by-step explanation:

(5x2) x 7

(10) x 7 = 70

5 0
3 years ago
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