Answer:
3x-5=81
hope my answer is helpful to you
plz mark me as brainlist and also follow me
So if the perimeters are equal then you know
Rectangle Triangle
x + x + x + 4 + x + 4 = x + x + 9 + x + 5
which becomes
4x + 8 = 3x + 14
now you can solve the equation for x, then find the perimeters
Answer:
1050
Step-by-step explanation:
1. divide using long division
put 2 outside and the 2100 inside
then from there 2 goes into 2 once so put that on top. Next 2 cant go into one so put a zero above the one. After that 2 goes into 10 5 times so put a 5 above the first zero in 2100. Lastly 2 goes into zero 0 times so put a zero above the second zero.
Answer:
8n=20+6(n-2)
Step-by-step explanation:
n is the number of GB
Plan A has no initial fee and charges 8$ per each GB
So A has an equation that is y=0+8n or just y=8n.
Plan B has 20 for the first 2 GB and $6 for each addition GB after the first 2.
So B has an equation that is y=0+20+6(n-2) assuming n is 2 are greater.
So the two equations are y=8n and y=20+6(n-2).
We want Plan A to be the same as Plan B.
So we need to solve:
8n=20+6(n-2).
Let's check our equation:
Distribute:
8n=20+6n-12
Subtract 6n on both sides:
2n=20-12
2n=8
Divide both sides by 2:
n=4
Plan A charges 8 dollars ber GB, so plan A charges 4(8)=32 dollars.
Plan B charges 20 dollars for the first 2GB and 6 dollars for each GB after so we used 4 which means we are spending 20+6(2)=20+12=32 dollars.
They are the amount so n=4 is right.
Answer:
1) x+2x+x+3 = 23
4x+3=23
4x=20
x=5
2) a_ radius × radius × pi = the area
4×4×3= 48
b_ diameter × pi= the circumfrence
8×3 = 24
3) a) 34_10=24
24÷3=8
b) _24_(_48)= 24
4) a) 2x=9_5
2x=4 => x=2
b)X/3 =12
x= 36
5) x. _2.
y. 3_(_2)=5
x. 0
y. 3_0=3
x. 3
y. 3_3=0
i put them here too
