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3 years ago

Start with n, subtract 2, then times by 8

Mathematics

2 answers:

Ira Lisetskai [31]3 years ago

7 0

N - 2 x 8

n - 16

Therefore, n = 16

Hope this helps!! :))

Annette [7]3 years ago

4 0

Answer:

n - 2 \div 8 = 0

n - 2 = 8

n = 10

Step-by-step explanation:

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Marika is training for a track race She starts by sprinting 100 yards . She gradually increases her distance , adding 4 yards a

wel

For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21

7 0

3 years ago

A single six sided dice is rolled find the probability of rolling a seven

Margaret [11]

Answer:

Step-by-step explanation:

Total outcomes = 6

Favourable outcomes = 0(As there is no 7 in a dice)

Probability = Favourable Outcome/Total outcomes

=> 0/6

=> 0

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2 years ago

3x square + 4 x minus 15 is equals to zero

lisov135 [29]

Answer:

Step-by-step explanation:

3x² + 4x - 15 = 0

Factor left side.

(3x - 5)(x + 3) = 0

Set factors equal to 0.

3x - 5 = 0

3x = 5

x = 5/3

x + 3 = 0

x = -3

7 0

3 years ago

Read 2 more answers

A restaurant charges $6.50 for a slice of pizza that is 1/3 of a pizza and four dollars for a slice that is 1/5 of a pizza one d

Serjik [45]

Answer:

Restaurant would make more money by slicing each pizza into fifths.

Step-by-step explanation:

We have been given that a restaurant charges $6.50 for a slice of pizza that is 1/3 of a pizza. This means money earned from one pizza would be $3\times \$6.50=\$19.50$ , when restaurant sells a pizza slicing into thirds.

We are also told that restaurant charges four dollars for a slice that is 1/5 of a pizza. This means money earned from one pizza would be $5\times \$4=\$20$ , when restaurant sells a pizza slicing into fifths.

Since money earned from pizza sliced into fifths ($20) is greater than money earned from pizza sliced into thirds ($19.5), therefore, restaurant would make more money by slicing each pizza into fifths.

6 0

3 years ago

Use the Remainder Theorem to find the reminder when P(x)=x3+4x2+1 is divided by (i+1)x+2.

Alex777 [14]

First, rewriting a bit,

$\dfrac{x^3+4x^2+1}{(i+1)x+2} = \dfrac1{i+1} \cdot \dfrac{x^3+4x^2+1}{x+\frac2{i+1}}$

By the remainder theorem, the remainder upon dividing $x^3+4x^2+1$ by $x+\frac2{i+1}$ is equal to

$\left(-\dfrac2{i+1}\right)^3 + 4\left(-\dfrac2{i+1}\right)^2 + 1 = \boxed{3 - 6i}$

which is to say,

$\dfrac1{i+1} \cdot \dfrac{x^3+4x^2+1}{x+\frac2{i+1}} = q(x) + \dfrac{3-6i}{(i+1)\left(x+\frac2{i+1}\right)}= q(x) + \dfrac{3-6i}{(i+1)x+2}$

6 0

3 years ago