3 years ago

Mary is five times older than Julian. If the sum of their ages is 42, how old is Mary?

Mathematics

2 answers:

Leno4ka [110]3 years ago

5 0

Answer:

Mary is 35.

Step-by-step explanation:

An equation would be 5j + j = 42.

I used substitution by plugging in 7:

5(7) + 7 = 42

35 + 7 = 42

Hope this helps,

♥A.W.E.S.W.A.N.♥

Tanya [424]3 years ago

4 0

Answer:

Step-by-step explanation:

M=5J

J=M/5

42=6J

42/6=7

Jullian is 7

7x5=35

Mary is 35

35+7=42

You might be interested in

Will ran four miles on his first day of training. The next day he ran one-third that distance. How far did he run the second day

igomit [66]

1.3333333333333333333333333333333333333

4 0

3 years ago

A number is as much greater than 21 as it is less than 75 .find the number

laiz [17]

Answer:

Step-by-step explanation:

Let number is x greater than 21 and x less than 71.

Now, according to question,

21+x=71−x

2x=50

x=25

So, required number is 21+x=21+25=46.

Alternatively,

The required number would be the average or mean of 21 and 71.

So, required number =

(21+71)

=46.

7 0

3 years ago

The selling price of a house dropped from $250,000 to $210,000 over a period of 5 years. what percent did the selling price decr

Harlamova29_29 [7]

sorry I haven't learned how to do that yet

6 0

3 years ago

Which polynomial does the model represent?

Maurinko [17]

Ive never seen a question lie this before
Since the first figure is a square I guess it stand for x^2
then we have -2x + 3x = x ( the 2 stets of rectangles)
and finally -3 + 1 = - 2
So i am presuming its x^2 + x - 2
Option b

Im not sure though

3 0

3 years ago

Read 2 more answers

On the graph shown, line C is the parent function

AfilCa [17]

Answer:

g(x) = log2 (x) – 1

Step-by-step explanation:

I just did this on Edge

4 0

2 years ago