3 years ago

Pls answer only if you are sure. Don't answer because of points

Mathematics

2 answers:

Vladimir79 [104]3 years ago

7 0

I want to say 1/3 ratio

AlekseyPX3 years ago

3 0

The answer in ratio form is 2/9

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4over 5 divided by 1 over 10

MAVERICK [17]

4/5 divided by 1/10 = 4/5 x 10/1 = 40/5 = 8

3 0

3 years ago

Kevin is 3 years older than daniel. Two years ago, Kevin was 4 times as old as Daniel. Let k be Kevin’s age and let d be Daniels

bezimeni [28]

Answer:

Daniel (now) is 3 years old, (2 years ago) is 1 year old.

Kevin (now) is 6 years old, (2 years ago) is 4 years old.

Step-by-step explanation:

Now:

-Kevin: k = d + 3

-Daniel: d

2 years ago:

-Kevin: k - 2 = 4(d - 2)

-Daniel: d - 2

We have the equation:

(k - 2) + 2 = k

4(d - 2) + 2 = d + 3

4d - 8 + 2 = d + 3

3d - 6 = 3

3d = 9

d = 3

k = d + 3 = 3 + 3 = 6

8 0

4 years ago

A combination lock uses three numbers between 1 and 78 with repetition, and they must be selected in the correct sequence. whic

Oksana_A [137]

first number and second number and third number = Total

78 possibilities x 78 possibilities x 78 possibilities = 234

Since "order" matters, this is a permutation.

So, this can be calculated using: ₇₈P₃

"Permutation lock" would be a more appropriate name.

8 0

3 years ago

Read 2 more answers

Given the following formula, solve for I. P = 2(1 + b)

patriot [66]

Answer: $l=\dfrac{P}{2}-b$

Step-by-step explanation:

P = 2(l + b)

Divide both sides by 2:

$\dfrac{P}{2}=l+b$

Subtract b from both sides:

$\dfrac{P}{2}-b=l$

Note: You can also multiply b by $\frac{2}{2}$ if you want the left side to be one fraction.

$\dfrac{P}{2}-\bigg(\dfrac{2}{2}\bigg)b=l\\\\\\\dfrac{P-2b}{2}=l$

6 0

3 years ago

I need help pleaseeeee

levacccp [35]

The answers is 30 km.....

6 0

4 years ago