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3 years ago

Please help me idk the answer

Mathematics

2 answers:

ehidna [41]3 years ago

8 0

Hi there! The answer is 2 1 / 2

$10 \frac{2}{6} - 7 \frac{5}{6} = \frac{62}{6} - \frac{47}{6} = \frac{15}{6} = 2 \frac{3}{6} = 2 \frac{1}{2}$

rjkz [21]3 years ago

4 0

Here is the answer
$2 \times \frac{1}{6}$

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Can somebody help me on 23 and 24, it’s geometry

alexdok [17]

Answer:

23. x = 4; DE = 44

24. x = 25; DS = 28

Step-by-step explanation:

23. Point S is the midpoint of DE, so ...

DS = SE

3x +10 = 6x -2

12 = 3x . . . . . . . . . add 2-3x

4 = x . . . . . . . . . . . divide by 3

Then DS has length ...

DS = 3x +10 = 12 +10 = 22

and DE is twice that length, so ...

DE = 44

24. DS is half the length of DE, so is ...

DS = DE/2 = 56/2

DS = 28

Then x can be found from ...

DS = x +3

28 -3 = x = 25 . . . . . substitute value for DS

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Comment on problem 24

Sometimes it is easier to work parts of a problem out of sequence. Here, finding DS first makes finding x easier.

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2 years ago

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The number of students in a school was 860 last year. This year there are 790. What is the percentage decrease in the number of

Arada [10]

Percent decrease=decrease/original times 100

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3 years ago

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What is the factored form of a2 – 121?

Flura [38]

Answer:

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Step-by-step explanation:

Given : $a^2-121$

We have to write the given expression in factored form.

Factor form of an expression is writing the expression in lower power form such that the product of factors given the original expression

Consider the given expression $a^2-121$ .

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3 years ago

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