Ask question

Ask question

All categories

2 years ago

8

Sally can paint a room in 4 hours while it takes steve 5 hours to paint the same room. How long would it take them to paint the

room if they worked together?

1 answer:

sdas [7]2 years ago

8 0

Answer:

I think it's 20/9 hours. so 2.222222... hours.

Step-by-step explanation:

You might be interested in

What is the value of x?

KatRina [158]

Answer:

X = 98°

Step-by-step explanation:

53° + 45° + FGH = 180° ( Interior angle property)

FGH = 180° - 98 °

FGH = 82°

Now,

By x would be solved through linear pair.

x° + 82° = 180° ( linear pair)

x° = 180° - 82°

x = 98°

hope it helps!

7 0

3 years ago

Read 2 more answers

A car starts with a speed of 20km/ hr and accelerates at a rate of 3.4 m/s for 20 seconds. What is the final speed of the car in

Schach [20]

The relevant formula that we can use in this situation is:

v = v0 + at

where v is the final velocity, v0 is the initial velocity = 20 km/hr, a is acceleration at 3.4 m/s^2 and t is time at 20 seconds

First convert v0 to m/s, v0 = 5.56 m/s

v = 5.56 m/s + 3.4 m/s^2 * 20 s

v = 73.56 m/s

Then convert back to km/hr:

<span>v = 264.82 km/hr</span>

5 0

3 years ago

Determine weather the two expressions are equivelent tell what property is applied if not explain why (35+17)+43 and 35 +(17+43)

madam [21]

Answer:

Associative Property

Step-by-step explanation:

3 0

3 years ago

Five-thirds divided by one-third Step 1: Show the dividend Five-thirds in a fraction bar. Step 2: Below the dividend, show the d

Kisachek [45]

Answer: the answer 5

Step-by-step explanation: it is 5

6 0

3 years ago

Read 2 more answers

Tan9°. tan27°. tan45°. tan72°. tan81°= 1<br><br>could u plz solve it with clear process

Inga [223]

<u>Correct</u><u> </u><u>question</u><u>:</u><u>-</u>

<u>Prove </u><u>that </u><u>tan9.</u><u>t</u><u>a</u><u>n</u><u>1</u><u>7</u><u>.</u><u>t</u><u>a</u><u>n</u><u>4</u><u>5</u><u>.</u><u>t</u><u>a</u><u>n</u><u>7</u><u>3</u><u>.</u><u>t</u><u>a</u><u>n</u><u>8</u><u>1</u><u>=</u><u>1</u>

<u>LHS</u>

$\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81$

$\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45$

$\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1$

$\\ \sf\longmapsto cot81.tan81.cot73.tan73$

$\\ \sf\longmapsto 1.1$

$\\ \sf\longmapsto 1$

5 0

2 years ago

Read 2 more answers