7/8 = x/48

Perform cross multiplication:
a/b = c/d
ad = bc

a = 7 ; b = 8 ; c = x ; d = 48
7*48 = 8x
336 = 8x
336/8 = x
42 = x

7/8 = 42/48

42 ÷ 6 = 7
48 ÷ 6 = 8

5 0

4 years ago

Read 2 more answers

Jaun earns $11 per house and works at most $30 hours per week identify the independent and dependent quantity in this situation

pantera1 [17]

$11 is the independent and the $30 is dependent because to get the $30 a week, it depends on that $11 per house.

7 0

4 years ago

Two consecutive odd whole numbers are selected. The difference between the reciprocals of the two numbers is 2/143. Determine th

nikklg [1K]

Answer:

11 and 13

Step-by-step explanation:

Suppose the smaller one is x. Then the difference of their reciprocals is ...

$\dfrac{1}{x}-\dfrac{1}{x+2}=\dfrac{(x+2)-(x)}{x(x+2)}=\dfrac{2}{x(x+2)}$

This tells us that x will be the smaller of the two factors of 143:

143 = 11×13

x = 11

The two numbers are 11 and 13.

5 0

3 years ago

William wants to invest $30,000 in a mutual fund.

Natali [406]

Answer:

He will have $39,750 at the end of five years.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

$T = E + P$