David is 38 years old and his son Frank is 8. In how many years will David be twice as old as Frank?Write then Solve the equation

Answers

Answer 1

Answer: 22 years.
38+22=60
8+22=30
60 divided by 2 = 30

Related Questions

A plant can either have a smooth seed (p) or a rough seed (q). Rough seeds are recessive and smooth seeds are dominant. In a population of 100 plants, 32 of them have rough seeds.p^2 + 2pq + q^2 = 1 a) What is q^2? b) What is q? c) What is p? d) If there are 19 plants with rough seeds in a population of 100, what is the allele frequency for smooth seeds?
What infinity multiplied by pi
Farmer has 120 bushels of wheat to sell at her roadside stand. She sells an average of 1658 bushels each day. Represent the total change in the number of bushels she has for sale after 5 days.
Brad and Wes are building a tree house. They cut a 12 1/2 foot piece of wood into 5 of the same length. how long is each piece of wood? show your work
In triangle ABC, angle a equals 25°, angle C equals 55°, and a B equals 60

Solve the equation. 6 = 2(x + 8)- 5x
a. 2/3
b. 3 1/3
c. - 2/3
d. -3 1/3

Answers

6 =2(x+8)-5x
6 =2x+16-5x
6-16=2x-5x
-10=-3x
10=3x
x=10/3
hence proved

Which expressions are equivalent to 16^x/4^x

Answers

16^1 = 4^2 16•1 = 4•4 16 = 16

What should be done to both sides of the equation in order to solve y + 8.5 = 17.2?

Answers

In order to solve for y, you would have to subtract 8.5 to both sides. Therefore, it would be y = 8.7. Good luck!

(x^-4)^5
please simplify the expression

Answers

$(x ^(-4) )^(5)$

Apply exponent rule :

$(a^b)^c = a^ ^(b.c)$

$=x ^((-4)*5)$

$(-4)*5$

$= - 20$

Apply exponent rule :

$a ^(-b) = (1)/(a^b)$

$= (1)/(x ^(20) )$

hope this helps!

Factor completely 2x^2 − 2x − 40. 2(x − 5)(x 4) (2x − 10)(x 4) (x − 5)(2x 8) 2(x − 4)(x 5)

Answers

2x^2 - 2x - 40 = 2x^2 -10x + 8x - 40 = 2x(x - 5) + 8(x - 5)

= (x-5)(2x+8) = 2(x-5)(x+4)

Three copies of a triangle were rotated and positioned as shown. Which statement is always true about the angles in the figure?a. Angle a and angle b form a right angle
b. Angle a, angle b, and angle c, form a straight angle.
c. angle a, angle b, and angle c from a acute angle.
d. Angle a and angle c form a right angle

Answers

If the above image is the supposed image for this problem, then,

B. Angle A, Angle B, and Angle C, form a straight angle.

A straight angle is 180°. C A B found in the middle of the picture forms the 180° straight angle.

Right angle is an angle which is equivalent to 90°
Acute angle is an angle which has less than 90°

As I can observe, the three triangles have two equal sides and two equal angles. These triangles are identified as isosceles triangles.

Other Questions

Factor: 36x^2-64thanks!

15. Edgar Anderson earns $200 a week plus a 15% commission on all sales over $1,000. If Mr. Anderson's sales for one week are $2,500, what is his gross pay for that week?A. $350 B. $525 C. $575 D. $425 16. Which one of the following statements expresses a true proportion? A. 14 : 6 = 28 : 18 B. 42 : 7 = 6 : 2 C. 2 : 3 = 3 : 2 D. 3 : 5 = 12 : 20

A line has a slope of -1/2 and a y-intercept of 3.Which equations represent the line?Choose all answers that are correct.A. 2y = 6 + xB. x + 2y = 6C. y = -1/2x + 3D. (y - 2) = -1/2( x - 2 )

Haley bought 1.6 pounds of almonds for $13.20. How much did she pay per pound?