3 years ago

I will give a brainliest if your answer are correct

Mathematics

2 answers:

andrew-mc [135]3 years ago

5 0

5×(4+3×2)=5×(4+6)=5×10=50

then its answer C

Andrew [12]3 years ago

4 0

Answer:

huhh what this is question is too hard

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siw is a fourth as old as mother, and Mona is a fifth as old as mother. Mother is 22 years older than the two girls together. Ho

myrzilka [38]

Answer:

Siw's age is 10 years old

Mona's age is 8 yers old

Mother's age is 40 years old

Step-by-step explanation:

Let

x ----> Siw's age

y ---> Mona's age

z ---> Mother's age

we know that

Siw is a fourth as old as mother

$x=\frac{1}{4}z$ ----> equation A

Mona is a fifth as old as mother

$y=\frac{1}{5}z$ ----> equation B

Mother is 22 years older than the two girls together.

$z=x+y+22$ ----> equation C

substitute equation A and equation B in equation C

$z=\frac{1}{4}z+\frac{1}{5}z+22$

solve for z

Multiply by 20 both sides to remove the fraction

$20z=5z+4z+440$

$20z-9z=440\\11z=440\\z=40\ years$

Find the value of x

$x=\frac{1}{4}(40)=10\ years$

Find the value of y

$y=\frac{1}{5}(40)=8\ years$

therefore

Siw's age is 10 years old

Mona's age is 8 yers old

Mother's age is 40 years old

6 0

3 years ago

Ashton had 28 1/2feet of wrapping paper. He uses 3/8

sammy [17]

Answer:

Step-by-step explanation.

here is a trick

try turning both fractions into a decimal and then divide then. It will be much easier.

4 0

2 years ago

What is 8/10 simplified by

Oksanka [162]

Answer:

4/5

Step-by-step explanation:

that is it

6 0

2 years ago

Read 2 more answers

What is the answer when you evaluate n + m -2(m-m) when m = 3 and n = 2?

Effectus [21]

Answer:

Step-by-step explanation:

n + m -2(m-m)

Combine like terms

n+m+2(0)

n+m

Let m=3 and n=2

2+3

7 0

2 years ago

The average of 11 numbers in a list is 14. If the average of 9 of the numbers in the list is 9, than what is the average of the

liberstina [14]

Total value of 11 numbers
14*11
154

Total value of 9 numbers
9*9
81

Total value of other 2 numbers
154 - 81
73

So average of other 2 numbers
73 / 2
36.5

3 0

3 years ago