Answer:
The old tower has 150 steps
Step-by-step explanation:
Let the number of steps in the old tower be m
Mathematically, time = distance/speed
In this case, the distance is the number of steps while the speed is the rate of climbing or descending
For climbing, time spent = m/3
For descending time spent = m/2
Since it took her 25 longer when descending;
This means that;
m/2 - m/3 = 25
(3m-2m)/6 = 25
m/6 = 25
m = 6 * 25
m = 150 steps
Answer:
The answer is 429 = 3×11×13.
Step-by-step explanation:
You have to divide by prime number :
429 ÷ 3 = 143
143 ÷ 11 = 13
13 ÷ 13 = 1
7x^2 + -x + -2 + 6x^2 + - 3
6x^3 + 7x^2 – x – 5
Your answer is A: 6x^3 + 7x^2 – x – 5
Answer:the new length will be 25 inches
Step-by-step explanation:
The photo is rectangular in shape. Jonas wants to determine the enlarged dimensions of a photo to be framed. This means that the length and width of the original photo will be increased by a scale factor. The scale factor would be
Original length/original width = 6/4 = 1.5
Therefore, the length is always 2.5×the width
If the width of the new photo will be 10 inches, then the length would be
2.5 × 10 = 25 inches
Answer:
Base = 126 cm or 60 cm
Step-by-step explanation:
Ratio of sides of isosceles triangle = 4 : 7
Sides are = 4x , 7x
If smallest sides of the isosceles triangle are equal, then
three sides are = 4x , 4x , 7x
Perimeter = 270 cm
4x + 4x + 7x = 270
15x = 270
x = 270/15
x = 18
Base = 7x = 7*18 = 126 cm
If largest sides of the isosceles triangle are equal, then
Three sides are = 7x , 7x , 4x
7x + 7x +4x = 270
18x = 270
x = 270/18
x = 15
Base = 4x = 4 * 15 = 60 cm
