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2 years ago

Alvin is 8 years older than Elga. The sum of their ages is 78. What is Elga's age?

Mathematics

1 answer:

Mazyrski [523]2 years ago

3 0

Answer:

Step-by-step explanation:

ok let's look at these old farts.

alvin is 8 years older than elga, so elga needs 8 more years to be as old as Alvin is. AKA,

Alvin = Elga + 8

The sum of their ages is 78.

Alvin + Elga = 78

Now put the equations together,

(Elga + 8) + Elga = 78

2 * Elga = 70

Elga = 35

Therefore, Elga is 35 years old! So old !!

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aleksandr82 [10.1K]

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8 0

3 years ago

The answer to c plz

NikAS [45]

Answer:

≈ 30.63 cm²

Step-by-step explanation:

The shaded area is calculated by subtracting the area of the inner circle from the area of the outer circle.

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3 years ago

Question 7 (1 point)<br> Solve: 8x = 56

Hunter-Best [27]

Answer:

x = 7

Step-by-step explanation:

8x = 56

To solve this, we must simplify. To do this, we must divide each side by 8. This, in term, will give us the value of x.

8x = 56

---- ----

8 8

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x = 7

Our answer is x = 7

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3 years ago

$893.996 rounded to the nearest cent

Fed [463]

Answer:

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3 years ago

Can you think of any 2x2 matrices d for which cd = dc for all 2x2 matrices c? give 2 different examples of such matricesd.

Ksju [112]

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