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3 years ago

Bryn's age is given by the expression 3g - 7, where g is her sister Gabriela's age. If Bryn is 17, how old is Gabriela?

1 answer:

8 0

You are told that B=3g-7 and you are also told that B=17 so

3g-7=17 add 7 to both sides

3g=24 divide both sides by 3

g=8

So Gabriela is 8 years of age.

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Maria has three children. There is two years age difference between each child. The total ages of all three children is 36 years

ahrayia [7]

Answer:

Step-by-step explanation:

R means Rosa

given:

R+b+c=36

R R c-2=b, (R+2)+2=c

b-2=R, R+2=b

R+b+c=36 substitute for b and c

R+(R+2)+((R+2)+2)=36 add like terms

3R+6=36 subtract 6

3R=30 divide by 3

R=10

check

R=10

b=12

c=14

10+12+14=36

36=36

8 0

3 years ago

Read 2 more answers

Opposite quantity of. (i) 28 m South (ii)70 km above sea level.<br> 7

uysha [10]

Answer:

1) 28m West 2)70km below sea level

7 0

3 years ago

In how many ways can 5 different novels, 4 different mathematics books, and 1 biology book be arranged on a bookshelf if

zalisa [80]

Question Continuation:

if (a) the books can be arranged in any order?

(b) the mathematics books must be together and the novels must be together?

Answer:

(a) 3628800 ways

(b) 17280 ways

Step-by-step explanation:

Given

$Novels = 5$

$Mathematics = 4$

$Biology = 1$

Solving (a): In any order

This implies that there is no restriction and the novels, mathematics and biology book are just seen as books.

Total number of books is:

$N = Mathematics + Novel + Biology$

$N = 4+5+1$

$N = 10$

The number of arrangement is:

$10! = 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1$

$10! = 3628800\ ways$

(b):

If the mathematics books are together, there are 4! different arrangements

If the novels are together, there are 5! different arrangements

Now, there are 3 bundles.

The mathematics books as 1
The novels as 1
The biology book

This can be arranged in 3! ways.

Total number of arrangement is:

$Total = 4! * 5! * 3!$

$Total = 4*3*2*1 * 5*4*3*2*1 * 3*2*1$

$Total = 17280\ ways$

6 0

3 years ago

Find the final price on a $1,049 television

jasenka [17]

Answer:

$883.40

Step-by-step explanation:

Calculate the amount of money needed to pay after the discount.n

$1049 × 88% = $923.12

Calculate the amount of money needed to pay after the tax.

$923.12 × 104.5% = $883.3684210526

=$883.40(rounded off to nearest cents)

hope this helps

4 0

4 years ago

Is this a function ?

-BARSIC- [3]

Answer:

yes it is the function

plz mark as brainlist

4 0

3 years ago