You substitute in an expression by filling in the desired and accustomed unknown value to the value you're trying to find. An example below can better elaborate what I want to say above. In the equation below, 7 - 2n = 5 the unknown is represented by n moreover, the equation suggest to find the missing to make it equilateral on both sides.
In mathematical expression, the equation then becomes 7 - 2n = 5
The next procedure is to find the unknown.
1. 7 - 2n = 5
2. -2n = 5 - 7
3. -2n = -2
4. n = -2/-2
5. n = 1
Check:
Substitute n = 1
7 - 2 (1) = 5
7-2 = 5
5=5
Answer:
Step-by-step explanation:
let the smaller square be A, and the side is a
larger square is B, the side is a+3
Area(A)=a^2
Area(B)=(a+3)^2
a^2+(a+3)^2=425 in^2
a^2+a^2+6a+9=425
2a^2+6a=425-9
2(a^2+3a)=416 we divide by 2
a^2+3a=208
we solve the quadratic function
we will get two roots, a(1)=13, and the negative answer we will ignore
a=13 and the side of the larger square is 13+3=16
Answer:
It compares 3 meals to 1 day.
Step-by-step explanation:
"Unit rate" refers to a rate that has 1 unit in the denominator.
(3 meals)/(1 day) . . . . "three meals per day"
has one unit (1 day) in the denominator, so that is a unit rate.
<h2>(☞^o^) ☞</h2><h2>Here's your answer </h2>
Step-by-step explanation:
Let the two consecutive natural numbers be x and x+1
Now, according to the problem
x+(x+1)=23
⇒ 2x+1=23
⇒ 2x=23−1
⇒ 2x=22
⇒ x=22÷2=11
The one number is 11
The next number is x+1=11+1=12
Hence the numbers are 11 and 12.
Be my Friend...
The answer is:
A) If a = b, then a + c = b + c.
and C) If w + 2 = 7, then w + 2-2 = 7- 2.
