Ask question

Ask question

All categories

3 years ago

12

A tire shop had to fill 2 1 ⁄2 tires with air. It took a small air compressor 2 1 ⁄2 seconds to fill them up. How long would it

take to fill 8 tires?

1 answer:

Brums [2.3K]3 years ago

6 0

Let 2_1/2 = 5/2.

Let t = time to fill 8 tires

(5/2)/8 = (5/2)/t

8(5/2) = (5/2)t

20 = (5/2)t

20 ÷ 5/2 = t

20 • 2/5 = t

8 seconds = t

Done.

You might be interested in

Penny received an unexpected $5,000.00 gift from a distant relative. She invests it in a mutual fund that increases the value of

dusya [7]

Answer:

Penny would need to put in ~ $18,181.82

Step-by-step explanation:

Using the equation $A = P(1+rt)$

Where A = the total

P is equal to the starting amount

r is equal to the rate (percent)

and t is equal to the total time.

We can put in:

A = $40,000

r = 0.08 (8%)

t = 15

$40,000 = P(1 +(0.08* 15))\\40,000 = P(1+1.2)\\40,000 = P(2.2)\\\frac{40,000}{2.2} = P\\ \frac{200,000}{11} = P\\P = $18181.8181818181...$

Round to the nearest whole cent

P = $18,181.82

3 0

2 years ago

How to simplify variable expressions

motikmotik

Combine like terms, find greatest common factors, and reduce fractions

3 0

3 years ago

Read 2 more answers

4. 9d - 5 = 4<br><br> What does d =<br> 5. 6-3w=-27 what does w =<br> 6. -4= q/8-19 what does q =

trapecia [35]

Answer:

4) d = 1

5) w = 11

6) q = 120

Step-by-step explanation:

<em>4)</em> $9d - 5 = 4$

Adding 5 on both the sides ,

$= > 9d - 5 + 5 = 4 + 5$

$= > 9d = 9$

Dividing both the sides by 9 ,

$= > \frac{9d}{9} = \frac{9}{9}$

$= > d = 1$

<em>5)</em> $6 - 3w = - 27$

Substracting 6 from both the sides ,

$6 - 3w - 6 = - 27 - 6$

$= > - 3w = - 33$

Dividing both the sides by -3 ,

$= > \frac{ - 3w}{ - 3} = \frac{ - 33}{ - 3}$

$= > w = 11$

<em>6)</em> $- 4 = \frac{q}{8} - 19$

Adding 19 on both the sides ,

$\frac{q}{8} - 19 + 19 = - 4 + 19$

$= > \frac{q}{8} = 15$

Multiplying both the sides by 8 ,

$= > \frac{q}{8} \times 8 = 15 \times 8$

$= > q = 120$

6 0

2 years ago

Partial quotient for 350divide 5

azamat

In quotient your answer would be 70

5 0

3 years ago

Ten(10) adults and 3 children attend a local concert for $59. Four(4) adults and 3

gladu [14]

Answer:

$5 per adult and $3 per kid

Step-by-step explanation:

5x10=50

3x3=9

50+9=59

4x5=20

3x3=9

20+9=29

4 0

2 years ago