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3 years ago

6 7 15 8 Which number cannot be used to write related number sentences

Mathematics

2 answers:

Jlenok [28]3 years ago

4 0

I believe that the answer is 6

sweet-ann [11.9K]3 years ago

3 0

Ur answer here is 6

Because it cannot relate to 7 8 and 15

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muminat

surface area = (2)(5)(13)+(13)(10)+(12)(10)

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4 years ago

Apply the equation found in question 1 to compute the time it would take to cook a 12-pound beef roast. from USAtestprep

Advocard [28]

Step-by-step explanation:

Ermm you're gonna have to write the entire question here for assistance

7 0

3 years ago

The expression 7! is equal to which of the following? A) 720 B)4050 C)40320 D)7

Ugo [173]

7! = 7*6*5*4*3*2*1 = 5040

None of the above

7 0

3 years ago

Read 2 more answers

Sarah has a brother who is 5 years younger than herself and another brother who is 8 years younger than herself. She observes th

ELEN [110]

Answer:

Sarah is 13 years old

Step-by-step explanation:

Represent Sarah's age with S

Her first brother's age with F

Her second brother's age with B

So, we have:

From the first statement, we have:

$S - F = 5$ ---- (1)

From the second, we have:

$S - B = 8$ ---- (2)

The product of their ages is 40.

First, we make F the subject in (1) and B the subject in (2)

$F = S - 5$

$B = S - 8$

Their product is represented as follows:

$F * B = 40$

Substitute values for F and B

$(S - 5) * (S - 8)=40$

Open bracket

$S^2 - 5S -8S + 40 = 40$

$S^2 - 13S + 40 = 40$

Subtract 40 from both sides

$S^2 - 13S = 0$

Factorize:

$S(S - 13) = 0$

Split:

$S = 0$ or $S - 13 = 0$

But Sarah's age can't be 0 because she has two younger brothers.

So, we stick to

$S - 13 = 0$

Make S the subject

$S = 13$

Hence, Sarah is 13 years old

3 0

3 years ago

5 2/3 divided by 2 im terrible at fractions

Degger [83]

You can make the mixed number 5 2/3 an improper fraction, which is the number in the numerator is larger than the number in the denominator.
Multiply, Add, and Keep the denominator are the steps you need to take.
Multiply the denominator by the whole number and then add the number in the numerator, while keeping the denominator. 5*3+2=17>>> 17/3 is the improper fraction.
17/3 ÷ 2 is the resulting equation.
When you divide fractions, you have to multiply by the reciprocal. 2/1 is the whole number 2, but in fraction form. The reciprocal is 1/2 because your just flipping the numerator and the denominator.
17/3 * 1/2 is the new equation.
When you multiply fractions, you multiply straight across.
17/3 * 1/2 = 17/6 or 2 5/6 is your answer.

8 0

3 years ago