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3 years ago

Alvin is 13 years older than Elga the sum of their age is 55 what is elgas age

Mathematics

1 answer:

Makovka662 [10]3 years ago

5 0

Answer:

Elga is 42 years old

Step-by-step explanation:

55-13=42

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Lena [83]

Answer:

7.5kg

Step-by-step explanation:

Given that:

Monday:

Mass of sand = 24 kg

Mass of cement = 5 kg

Tuesday :

Mass of sand = 36 kg

Let mass of cement = c

Mass of cement required to make the same type of mortar mix

Mass of Sand = mass of cement

24kg = 5kg

36kg = c

By cross multiplication :

24 * c = 5 * 36

24c = 180

Divide both sides by 24

c = 180 / 24

c = 7.5 kg

Hence mass of cement required is 7.5 kg

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3 years ago

Find the missing number in the pattern:

zhenek [66]

Answer:

The pattern is that they are multiplying by -3 every time. 81*-3 = -243

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2 years ago

Ally works in a shop for $18 per hour dependent

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Independent is hour
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3 years ago

Kim has fraction 1 over 2 cup of almonds. She uses fraction 1 over 8 cup of almonds to make a batch of pancakes. Part A: How man

Serga [27]

Answer:

Step-by-step explanation:

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3 years ago

Tristán wants to build a square garden in his backyard if the garden is going to be 64 ft2 how many feet of material will he nee

Alex777 [14]

Answer:

Tristan will need 32 feet of material for the perimeter of the garden.

Step-by-step explanation:

Given that

Area of square garden = A = 64 square feet

Perimeter = P = ?

We know that for calculation of perimeter, length of side of square is required which is not directly given in the question. The area will be used to calculate length of side and then length will be used to calculate the perimeter.

So,

$Area = A = s^2$

s is for side

Putting the value of area

$64 = a^2$

Taking square root on both sides

$\sqrt{s^2} = \sqrt{64}\\s = 8\ feet$

The length of side is 8 feet.

Perimeter will be:

$P = 4*s\\P = 4*8\\P = 32\ feet$

Hence,

Tristan will need 32 feet of material for the perimeter of the garden.

3 0

3 years ago

Alvin is 13 years older than Elga the sum of their age is 55 what is elgas age​

Alvin is 13 years older than Elga the sum of their age is 55 what is elgas age