Step-by-step explanation:
solution,
given
DF = 42
DE = 7x+1
EF = 4x-3
DE = ?
here,
or, DF = DE +EF
or, 42 = 7x+1+4x-3
or, 42 = 11x-2
or, 42+2 = 11x
or, 44/11 = x
or, 4 = x
then,
replacing value of x in DE
DE = 7x+1
= 7*4+1
= 28+1
= 29
Answer:
s = 1.35 (See explanation!)
Step-by-step explanation:
To write an equation, you need to know that all four sides of a square are equal. Since each side is equal, it can be represented by the same variable or value. I'll use s for the variable:
Equation:
4s = 5.4
Note: the 4s is the total perimeter (4 * side)
Now, solve:
4s = 5.4
Divide by four to isolate the s:
4s/4 = 5.4/4
Finally:
s = 1.35
Answer:
t=-3 t=3 m=2
Step-by-step explanation:
a. 10=4+3(t+5)
3xt 3x5
10=4+3t+15
4+15
10=3t+19
-19 -19
-9=3 -9/3
-3=t
b. 28=4+3(t+5)
3xt 3x5
28=4+3t+15
4+15
28=3t+19
-19 -19
9=3t 9/3
3=t
c. 0=16+4(m-6)
4xm 4x-6
0=16+4m-24
16-24
0=4m-8
+8 +8
8=4m 8/4
2=m
Answer:
A
Step-by-step explanation:
its A 13m babyyy,.......
The interior angles of a quadrilateral must add up to three hundred and sixty degrees
