3 years ago

Is the answer 40? I am kind of confused

Mathematics

2 answers:

klemol [59]3 years ago

4 0

Answer:

Yes

Step-by-step explanation:

29-18=11

c=11

18+2(11)=40

Y_Kistochka [10]3 years ago

3 0

Answer:

Step-by-step explanation:

If A+B is 18, A and B should equal 9.

A+B+C=29, that should mean C=6.

A+B+2C=9+9+2(6)

9+9+2(6)=30

You might be interested in

Need help on this please help

MrRissso [65]

262 is the answer :)

5 0

3 years ago

A belt and a wallet cost $42 while 7 belts and 4 wallets cost $213. Calculate the cost of each item.

Fittoniya [83]

Let, the cost of a belt = x
cost of a wallet = y

Then, system of equations would be:
x + y = 42
7x + 4y = 213

Multiply 1st equation by 4,
4x + 4y = 168
Substitute it from 2nd equation,
3x = 45
x = 15

Now, substitute it in 1st equation,
15 + y = 42
y = 42 - 15 = 27

In short, Belt costs $15 and wallet costs $27

Hope this helps!

3 0

3 years ago

Read 2 more answers

The roof of a castle tower is shaped like a cone. The base of the cone is 24 m across and the height is 16 m. The slant height o

MaRussiya [10]

my answer for B is 28.84

hope I could help

8 0

3 years ago

How to answer this ?

hichkok12 [17]

Answer:

a)3,6,9,12,15,18,24 b)7,14,21,28,35,52,49,56