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dangina [55]
3 years ago
8

Twice a number is three more than nine​

Mathematics
2 answers:
antoniya [11.8K]3 years ago
8 0

answer: how we supposed to do it?

Step-by-step explanation:

i don't even understand

KonstantinChe [14]3 years ago
5 0

Answer:

6

Step-by-step explanation:

Let that number be <em>x</em>.

2x = 9 + 3

2x = 12

x = 6

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You want to go to the skate park, and you have two options:
Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

<u>Define the variables</u>

Let the entry fee be c and the hourly rate be m

Let the number of hours be x and the total amount be y

<u>Work to solve</u>

For Sami's skate

c = 6 and m = 2

For Brad's skate

c =10 and m = 1

<u>The equations</u>

The equation is derived using: y = mx + c

For Sami's skate

y = 2x + 6

For Brad's skate

y = x + 10

<u>When the cost are the same</u>

To do this, we equate both expressions

i.e.

y = y

2x + 6 = x + 10

2x -x = 10 - 6

x = 4

i.e. the cost are the same at the 4th hour

<u>What is the cost</u>

Substitute 4 for x in any of the equations

y = x + 10

y  = 4 + 10

y  = 14

<em>The cost is $14.00</em>

3 0
3 years ago
Do this for me and I will give 42 points, it is 9th grade prob and stats.
Hitman42 [59]

answer what question?

6 0
3 years ago
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Mademuasel [1]

Answer:

Step-by-step explanation:

3 0
3 years ago
Let p: it is cold, q: it is humid, and r: it is snowing. Which statement represents "It is cold and humid if and only if it is s
MaRussiya [10]

Answer: The answer is (b) [(p∧q)⇒r] ∧ [r⇒(p∧q)].


Step-by-step explanation:  Given that The statements 'p', 'q' and 'r' are defined as follows.

p : it is cold,

q : it is humid,

r : it is snowing.

The statement 'it is cold and humid if and only if it is snowing'  can be written as

(p∧q) ⇔ r.

We know that  r ⇔ s can be written as (r⇒s)∧(s⇒r).

So, (p∧q) ⇔ r can be written as [(p∧q)⇒r] ∧ [r⇒(p∧q)].

Thus, the answer is (b) [(p∧q)⇒r] ∧ [r⇒(p∧q)].



7 0
3 years ago
Read 2 more answers
A customer at a Mexican diner placed an order for 3 burrito bowls. He also ordered 2 plates of corn tacos at $12.96 each. He was
JulsSmile [24]

Answer:

$6.05 for each burrito bowl

Step-by-step explanation:

12.96+12.96=25.92

45.42-25.92= 19.5

19.5/3= 6.5

6 0
3 years ago
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