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Let x represent Jane’s age = x
Ben =2x
David = x – 7
Total age = x+2x +x-7
=4x – 7
joseph rimiru answered the question on October 21, 2017 at 20:19
- Use letters to express the following statements
a. The area of a triangle whose base is x cm and height y cm
b. The distance covered by an...(Solved)
Use letters to express the following statements
a. The area of a triangle whose base is x cm and height y cm
b. The distance covered by an object in given time t and speed m/s
c. The number of days in (x +10) weeks
Date posted: October 21, 2017. Answers (1)
- In a mathematics test, six students scored the following grades, 60, a, 40, b, c, d. Find their average score.(Solved)
In a mathematics test, six students scored the following grades, 60, a, 40, b, c, d. Find their average score.
Date posted: October 19, 2017. Answers (1)
- Use letters to express the following statements .
a. The sum of three consecutive integers
b. A number is multiplied by six then ten is added to the result
(Solved)
Use letters to express the following statements .
a. The sum of three consecutive integers
b. A number is multiplied by six then ten is added to the result
Date posted: October 19, 2017. Answers (1)
- The surface area of a sphere is given by the formula A= 4pr^2. What is the radius of a sphere whose surface area is 240...(Solved)
The surface area of a sphere is given by the formula A= 4πr^2. What is the radius of a sphere whose surface area is 240 cm^2. (correct to 4 decimal places)
Date posted: October 19, 2017. Answers (1)
- Calculate the length of the base of a triangle whose height is equal to the length of the base and its area is 60.5 cm^2.(Solved)
Calculate the length of the base of a triangle whose height is equal to the length of the base and its area is 60.5 cm^2.
Date posted: October 19, 2017. Answers (1)
- The area of a square is 48.44 cm^2. Calculate its perimeter.(Solved)
The area of a square is 48.44 cm^2. Calculate its perimeter.
Date posted: October 19, 2017. Answers (1)
- If x= 4, y =5.7, and z=7.4, find the value of v(((x^(^2) y^2)/z)) leave your answer in four figures(Solved)
If x= 4, y =5.7, and z=7.4, find the value of √(((x^(^2) y^2)/z)) leave your answer in four figures
Date posted: October 19, 2017. Answers (1)
- Evaluate(v40 + v30)/v20 (Solved)
Evaluate(√40 + √30)/√20
Date posted: October 19, 2017. Answers (1)
- Evaluate v(90 x 12)/ v(25 x 2)(Solved)
Evaluate √(90 x 12)/ √(25 x 2)
Date posted: October 19, 2017. Answers (1)
- Find the square root of each of the following values
a. 50
b. 5.48
c. 0.156
d. 0.0629
e. 852.685
f. 0.001852
(Solved)
Find the square root of each of the following values
a. 50
b. 5.48
c. 0.156
d. 0.0629
e. 852.685
f. 0.001852
Date posted: October 19, 2017. Answers (1)
- 41. Using the factor method find the square roo of the following values
a. 576
b. 625
c. 6561
(Solved)
41. Using the factor method find the square root of the following values
a. 576
b. 625
c. 6561
Date posted: October 19, 2017. Answers (1)
- Findv(900) using factorization.(Solved)
Find√(900) using factorization.
Date posted: October 19, 2017. Answers (1)
- Write the following number in standard form
a. 22.36
b. 98343
c. 82.657
(Solved)
Write the following number in standard form
a. 22.36
b. 98343
c. 82.657
Date posted: October 19, 2017. Answers (1)
- From the mathematics tables find the squares of the following values
a. 4.162
b. 57.129
(Solved)
From the mathematics tables find the squares of the following values
a. 4.162
b. 57.129
Date posted: October 19, 2017. Answers (1)
- Find the square of the following from mathematics tables
a. 5.25
b. 52.5
c. 525
d. 0.525
(Solved)
Find the square of the following from mathematics tables
a. 5.25
b. 52.5
c. 525
d. 0.525
Date posted: October 19, 2017. Answers (1)
- Find the square of each of the following
a. 25
b. 5/2
c. 3.5
(Solved)
Find the square of each of the following
a. 25
b. 5/2
c. 3.5
Date posted: October 19, 2017. Answers (1)
- Evaluate [(0.83 x 0.03) + 3]/1.6 correct to 4 decimal places(Solved)
Evaluate [(0.83 x 0.03) + 3]/1.6 correct to 4 decimal places
Date posted: October 19, 2017. Answers (1)
- Evaluate (3.27 x 0.51)/0.04 correct to 1 decimal place(Solved)
Evaluate (3.27 x 0.51)/0.04 correct to 1 decimal place
Date posted: October 19, 2017. Answers (1)
- 33. Evaluate (0.18 x 1.06 x 0.32)/(4.5 x 0.09 x 0.088) (Solved)
33. Evaluate (0.18 x 1.06 x 0.32)/(4.5 x 0.09 x 0.088)
Date posted: October 19, 2017. Answers (1)
- Evaluate (0.36 x 4.2 x 8.4)/(0.007 x 25.5) correct to 2 decimal places.(Solved)
Evaluate (0.36 x 4.2 x 8.4)/(0.007 x 25.5) correct to 2 decimal places.
Date posted: October 19, 2017. Answers (1)