3 years ago

A number increased by fifteen is nineteen. A number increased by fifteen is nineteen.

Mathematics

1 answer:

elixir [45]3 years ago

5 0

Answer:

the number is 4

Step-by-step explanation:

we can write this as

x + 15 = 19

now we transpose

x= 19-15

x= 4

You might be interested in

Suppose 40% of all college students have a computer at home and a sample of 100 is taken. what is the probability that more than

scoundrel [369]

unlikely roughtly 40% have computers you cant make up for that other 10 percent

4 0

3 years ago

A car requires 25 litres of petrol for covering a distance of 350 km how much petrol will be required by the car to cover a dist

jasenka [17]

75 litres of petrol would be required

4 0

2 years ago

Read 2 more answers

Two congruent figures<br> have the same perimeter.<br> O sometimes<br> O Never<br> O Always

Tanzania [10]

Answer:

always

Step-by-step explanation:

5 0

3 years ago

A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 220 feet of f

MrRa [10]

Answer:

6050 square feet

Step-by-step explanation:

Based on the diagram attached, the area which the available fencing can enclose will measure X x Y feet. As the total length of fencing available is 220 feet, the fenced perimeter must equal 220 feet

$Y + 2X = 220$

$Y = 220 - 2X$

Area of a rectangle is determined by multiplying the length of perpendicular sides:

$Area = X*Y$

$Area = X(220 - 2X)$

$Area = 220X - 2X^{2}$

The derivative of an equation determines the slope at any given point of that equation. At the maximum or minimum point of the equation, the slope will be zero. Therefore, differentiating the equation for area and equating it to zero will give the value of X where the area is maximum.

A simple variable can be differentiated using below concept:

$f(a) = a^{b}$