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3 years ago

The answer to 5a-2=23

Mathematics

2 answers:

Sindrei [870]3 years ago

7 0

Answer:

a = 5

Step-by-step explanation:

assuming you are trying to find the value for a,

5a-2 = 23 (add 2 to both sides)

5a = 23 + 2

5a = 25 (divide both sides by 5)

a = 25/5

a = 5

Hope this helps

kow [346]3 years ago

6 0

Answer:

a=5

Step-by-step explanation:

To solve, we need to isolate the variable, a

5a-2=23

Add 2 to both sides

5a=25

Divide both sides by 5

a=5

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The GCD(a, b) = 9, the LCM(a, b)=378. Find the least possible value of a+b.

denis-greek [22]

$\mathrm{gcd}(a,b)=9\implies9\mid a\text{ and }9\mid b\implies9\mid a+b$

which means there is some integer $k$ for which $a+b=9k$ .

Because $9\mid a$ and $9\mid b$ , there are integers $n_1,n_2$ such that $a=9n_1$ and $b=9n_2$ , and

$\mathrm{lcm}(a,b)=\mathrm{lcm}(9n_1,9n_2)=9\mathrm{lcm}(n_1,n_2)=378\implies\mathrm{lcm}(n_1,n_2)=42$

We have $42=2\cdot3\cdot7$ , which means there are four possible choices of $n_1,n_2$ :

1, 42
2, 21
3, 14
6, 7

which is to say there are also four corresponding choices for $a,b$ :

9, 378
18, 189
27, 126
54, 63

whose sums are:

387
207
153
117

So the least possible value of $a+b$ is 117.

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3 years ago

The Long Term Parking sculpture in South Korea contains 60 cars embedded in concrete. It is 65.6 feet high. How tall is the Long

Daniel [21]

65 $\frac{6}{1}$

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3 years ago

Marcos is doing a card trick using a standard 52-card deck with four suits: hearts, diamonds, spades, and clubs. He shows his fr

qaws [65]

Answer:

3/16 apex

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Pls help me with this i rly do not understand this

gavmur [86]

Answer:

6 times the square root 2

Step-by-step explanation:

Hi there!

Since this is a 45-45-90 triangle, we know the sides are a, a, and a times the square root of two.

Since we can see the 6 is on of the sides that has the 90 degree corner, we know that 6 is our a.

Therefore, we know k is the hypotenuse and is 6 times the square root 2.

Hope this helped, have a great day! ^u^

4 0

3 years ago

192 beads

nirvana33 [79]

Answer:

Step-by-step explanation:

b + n = 192

n = 5b

b + 5b = 192

6b = 192

b = 192/6

b = 32 <==== 5 beads per bracelet

n = 5b

n = 5(32)

n = 160 <==== 160 beads per necklace

8 0

3 years ago