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Harman [31]
3 years ago
5

Mark's brother is five years or than mark. thier ages combinded adds up to 23. How old is mark

Mathematics
2 answers:
Serjik [45]3 years ago
7 0

Answer: 15

Step-by-step explanation:

drek231 [11]3 years ago
6 0

Answer:

18

Step-by-step explanation:

Mark is 18 years old.

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What is the fourth term of the sequence? <br> a1 = m<br> an = 2an-1<br><br> 2m<br> 4m<br> 6m<br> 8m
harkovskaia [24]

Answer:

8m.

Step-by-step explanation:

an = 2 an-1 means that each term in the sequence( except the first) is obtained by multiplying the last term by 2, so the first 4 terms are m, 2m, 4m, 8m.

3 0
4 years ago
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A dog weighs two pounds less than three times the weight of a cat. The dog also weights twenty-two more pounds than the cat. Wri
8090 [49]

Answer:

Weight of dog: 34 pounds,

Weight of cat: 12 pounds.

Step-by-step explanation:

Let d represent weight of dog and c represent weight of cat.

We have been given that a dog weighs two pounds less than three times the weight of a cat.

3 times weight of cat: 3c

We can represent the given information in an equation as:

d=3c-2...(1)

We are also told that the dog also weights twenty-two more pounds than the cat. We can represent the given information in an equation as:

d=c+22...(2)

Equate both equations:

3c-2=c+22

3c-c-2=c-c+22

2c-2=22

2c-2+2=22+2

2c=24

\frac{2c}{2}=\frac{24}{2}

c=12

Therefore, the weight of cat is 12 pounds.

Substitute c=12 in equation (2)

d=c+22

d=12+22

d=34

Therefore, the weight of dog is 34 pounds.

4 0
4 years ago
50 points!
Nana76 [90]

Answer:

y = 5 − 2x

4x + 2y = 10

(Infinite solutions)

x = 26 − 3y

2x + 6y = 22

(No solution)

5x + 4y = 6

10x − 2y = 7

(Single solution)

x + 2y = 3

4x + 8y = 15

(No solution)

3x + 4y = 17

-6x = 10y − 39

(Single solution)

x + 5y = 24

5x = 12 − y

(Single solution)

6 0
4 years ago
Help plz i dont know what to do the question is in the picture
irinina [24]

Answer:

4 in.3 and 12 cubic yards

Step-by-step explanation:

3 means three sides that a volume has and 2 means its a cube or rectangle shaped figure which i think has 2 sides. cubic means 3 as well that describes volume.

I searched this up

7 0
3 years ago
Trigonometry
xz_007 [3.2K]

Answer:

60º

Step-by-step explanation:

Using unit circle you can count up until you get the answer of 60º. Alternatively you can multiply 2pi/6 by 180/pi which will give you the same answer.

4 0
3 years ago
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