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Mathematics

1 answer:

Zepler [3.9K]3 years ago

8 0

Answer:

Step-by-step explanation:

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Find the quotient. -10d 4e3f 5 ÷ 15d 2e 2f

ruslelena [56]

2/3d2ef5 i believe, hope it helps

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3 years ago

Solve the equation by factoring. z2 − 6z − 27 = 0

Kisachek [45]

The answer is x= 9 and -3

You must fine 2 number that multiply to equal -27 and add to equal -6

(x-9) (x+3)
Then equal the parts of the binomial to zero

x - 9 = 0
x + 3 = 0

You must get x by its self.
When you do so, you'll have the answer as -3 and 9

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3 years ago

a sixth grade class has 12 boys and 24 girls consider this statement: for every two boys there are 4 girls do you ag

Nitella [24]

So the ratio of boys to girls is 12:24.. now, is that an equivalent ratio as 2 boys for 4 girls? or 2:4? let's see.

$\bf \cfrac{boys}{girls}\qquad 12:24\qquad \cfrac{12}{24}\implies \boxed{\cfrac{1}{2}}
\\\\\\
\cfrac{boys}{girls}\qquad 2:4\qquad \cfrac{2}{4}\implies \boxed{\cfrac{1}{2}}$

you could start simplifying the 12/24 fraction by dividing by some common multiple, say 2, and get 6/12, then divide by 3 and get 2/4 and stop there.

then you'll notice that 12/24 is really 2/4 in disguise.

4 0

3 years ago

S=L−rL solve for r Please solve this fast for much points.

podryga [215]

Subtract L from both sides.
the expression now becomes,
S−L=−rL
2)Divide by L on both sides.
S−LL=−r
3)Multiply with a negative sign on both sides in the final step to obtain the expression in terms of r so the answer is #(L-S)/L = r#

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3 years ago

A book costs $ 67. How much will be paid for 102 such books?

Ghella [55]

The cost of one book = $ 6 7

Number of books = 1 0 2

The cost of 102 books = $ 67 × 102

= $ 6834

Therefore, cost of 102 books = $ 6834

6 0

2 years ago

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I NEED HELP ASAP please ​

I NEED HELP ASAP please