All categories

2 years ago

The sum of a number and 3 is equal to 5 less than double that number. What is the number?

Mathematics

2 answers:

Vlad1618 [11]2 years ago

7 0

Answer:

when ever it says a number its a variable so it would look like this

Step-by-step explanation:

X+3=5=2x2=4

Ganezh [65]2 years ago

3 0

Answer:

sum of a number 2 plus3 is equal to 5

and less than its double 2×2=4 so the answer is 2

You might be interested in

The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the

Rom4ik [11]

M/s=30/9 =10/3

so, 3m=10s

8 0

3 years ago

Read 2 more answers

What is equivalent to 4x-2=38

Tom [10]

2x4 is the answer to 4x-2=38

7 0

2 years ago

From midnight to 2:00 am, the temperature rose 1.15°C each hour. If the temperature at 2:00 am was -2.7°C, what was the temperat

malfutka [58]

Answer: -5 degrees Celsius

Step-by-step explanation:

Temp at 2:00am = -2.7

2:00am is two hours after midnight

During that time the temperature has risen by 1.15 degrees every hour so has risen in total by:

1.15x2 = 2.3 degrees

-2.7-2.3=-5

It was -5 degrees at midnight

3 0

2 years ago

Probe that:<br><img src="https://tex.z-dn.net/?f=%20%5Csec%20%5Calpha%20%20%5Csqrt%7B1%20-%20%20%5Csin%28%20%7B%7D%5E%7B2%7D%20%

Nataly [62]

Step-by-step explanation:

<h3> $\sec \alpha \sqrt{1 - \sin ^{2} \alpha } = 1$ </h3>

Prove the LHS

Using trigonometric identities

That's

<h3> $\cos ^{2} \alpha = 1 - \sin^{2} \alpha$ </h3>

<u>Rewrite the expression</u>

We have

<h3> $\sec \alpha \sqrt{ \cos^{2} \alpha }$ </h3>

<h3> $\sqrt{ { \cos }^{2} \alpha } = \cos \alpha$ </h3>

So we have

<h3> $\sec \alpha \times \cos \alpha$ </h3>

Using trigonometric identities

<h3> $\sec \alpha = \frac{1}{ \cos \alpha }$ </h3>

<u>Rewrite the expression</u>

That's

<h3> $\frac{1}{\cos \alpha } \times \cos \alpha$ </h3>

Reduce the expression with cos a

We have the final answer as

As proven

Hope this helps you

7 0

2 years ago

18-2x=-36 answer please

8090 [49]

Answer:

It is X = 27

5 0

2 years ago

Read 2 more answers