3 years ago

Help please, i need it asap. thank you

Mathematics

1 answer:

Maslowich3 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

$\frac{3}{x}$ = $\frac{4.5}{7.5}$

cross multiply

4.5x = 7.5(3)

4.5x = 22.5

Divide

x = 5

You might be interested in

The number of windows on each floor form an arithmetic sequence; 124 windows on the first floor, 116 windows on the second floor

zubka84 [21]

Answer:

Formula is 132 - 8n, and there are 52 windows on 10th floor.

Step-by-step explanation:

difference = 116-124 = -8 ( 8 less windows for every floor you go up)

the first fllor has 124 windows

Formula:

$a_{1} = 124$

$a_{n} = 124 + (-8)(n - 1)$ = 132 - 8n

10th Floor:

$a_{10} = 124 + (-8)(10 - 1) = 124 + (-8)(9) = 124 - 72 = 52 windows$

6 0

3 years ago

Write the number in standard form.<br><br> 8×10^-3

Sindrei [870]

The answer is 0.008. Hope it helped! Stay safe

5 0

4 years ago

15+2.5(2x+4)<br> PLease help!

RoseWind [281]

Answer:

Step-by-step explanation:

5x+25

8 0

4 years ago

Round 12.48 to the nearest whole number

Alex Ar [27]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Please answer!!!!!!!!!!!

Zanzabum

Answer:

C. $f(a + 2) = \dfrac{5 + a}{a - 1}$

Step-by-step explanation:

Replace x with a + 2 and simplify the expression.

$f(x) = \dfrac{3 + x}{x - 3}$

Let x = a + 2

$f(a + 2) = \dfrac{3 + a + 2}{a + 2 - 3}$

$f(a + 2) = \dfrac{5 + a}{a - 1}$

4 0

4 years ago

Read 2 more answers