3 years ago

Alvin is 15 years younger than Elga. The sum of their ages is 35. What is Elga's age?

Mathematics

2 answers:

Dafna1 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Let A = Alvin's age

and E = Elga's age

We have two conditions:

(1) A = E – 15

(2) A + E = 35 Substitute (1) into (2)

E – 15 + E = 35 Combine like terms

2E – 15 = 35 Add 15 to each side

2E = 50 Divide each side by 2

E = 25

andrey2020 [161]3 years ago

3 0

Answer:

Elga is 25 and Alvin is 10

Step-by-step explanation:

25 - 10 is 15

25 + 10 = 35

You might be interested in

What is equally between 1200 and 1600

Sophie [7]

1400, as 1200 + 200 = 1,400 and 1600 - 200 = 1400.

4 0

3 years ago

Read 2 more answers

One week John earned three times as much as Alex earned mowing lawns. If they earned $48 altogether,how much did each one earn

Allisa [31]

Answer:Alex earned $12

John earned $36

Step-by-step explanation:

j=3a

a+3a=48

4a=48

a=48/4

a=12

j=36

8 0

3 years ago

Freight cars on some trains can each haul 60 tons of cargo. How many 500-pound containers can be hauled by this type of freight

zavuch27 [327]

Answer:240 500 pounds containers

Step-by-step explanation:

Each ton is 2000 pounds.? Convert 60 tons to pounds to get 120000 pounds and then divide it by 500

5 0

3 years ago

Im confused and i need help please help

denis23 [38]

Answer:

Step-by-step explanation:

8 0

3 years ago

I really, REALLY need help. I will give brainliest to whoever figures it out.

Finger [1]

Answer:

79.5 + 5.5x = Y

Step-by-step explanation:

Sumo wrestler gained 5.5 kg per month

After 11 month, he weighed 140 kg.

Let x be his current weight.

Then x + 11(5.5) = 140

x = 140 - 60.5

x = 79.5

If Y is the weight of the wrestler after t months, then the linear equation would be:

79.5 + 5.5t = Y

5 0

3 years ago