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3 years ago

1/5 of a number plus 3 times the number is equal to twice the number plus 42 what is the number

1 answer:

7 0

The term "a number" is going to be our variable, and we will use x to express that unknown number. The term "of" can also mean multiply, so.....

One fifth of a number = 1/5x

Three times the number = 3x

Twice the number = 2x

Now we add the other components to complete the rest of the equation:

1/5x + 3x = 2x +42

And then simplify the equation which comes down to:

x = 35

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Which describes the pattern in the sequence shown?

Studentka2010 [4]

Answer:

multiply a term by 2 and add 1 to get the next term

Step-by-step explanation:

3×2=6 +1 =7

7×2=14+1= 15

15×2=30+1=31

5 0

4 years ago

Read 2 more answers

A TV screen is 41 cm long and 31 cm high. The length of the diagonal is closest to: A) 49 cm Eliminate B) 51 cm C) 54 cm D) 48 c

GuDViN [60]

Answer:

The length of the diagonal is closest to 51 cm.

Step-by-step explanation:

Given:

TV screen is 41 cm long and 31 cm high.

Now, to find the length of the diagonal.

By using pythagorean theorem:

leg 1 = 41 cm, leg 2 = 31 cm.

Let the hypotenuse be $x$ .

(leg 1)² + (leg 2)² = hypotenuse²

$41^{2} +31^{2}=x^{2}$

⇒ $1681+961=x^{2}$

⇒ $2642=x^{2}$

Using square root on both sides we get:

⇒ $51.40=x$

So, the length of the diagonal = 51.40 cm.

By rounding off of 51.40cm it becomes 51 cm.

Therefore, the length of the diagonal is closest to 51 cm.

7 0

3 years ago

Jack and Jill each bought 100 pounds of cashews. Jack divided his cashews into 23 equal amounts and put them in paper bags. Jill

sladkih [1.3K]

Answer: Jack

Step-by-step explanation:

100÷2=50

50÷23=2.1739130435

50÷18=2.7777.....8

3 0

3 years ago

Table 3 Table 4 Please help i suck at this slope stuff

tatiyna

Answer:

the answer is table 2

Step-by-step explanation:

and you don't suck you just have to try harder

hope this helped

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3 years ago

rachel rides her bicycle due east at 9 miles per hour.Amos rides his bicycle due north at 12 miles per hour. if they left from t

Phantasy [73]

Answer:

15 miles

Step-by-step explanation:

pythagorean theorem

9²+12²=x²

x=15 miles

5 0

3 years ago