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otez555 [7]
3 years ago
8

Mark can clean his father's office in 30 minutes. His younger sister Lynn can clean the office in 40 minutes. How long will it t

ake if they come together and clean the office
Mathematics
2 answers:
zhannawk [14.2K]3 years ago
7 0
If they each do half, it will take 35 minutes.
Elan Coil [88]3 years ago
4 0
10 minutes is the answer

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Manuel has 5/8 of a pizza to share equally with his brother. What fraction of the original pizza will each person receive?
Irina-Kira [14]

Answer:

1¼

Step-by-step explanation:

⅝ ÷½

=⅝ײ/1

=⁵/4

=1¼

Whenever you divide two fractions you rewrite it switching the division sign for multiplication and writing the reciprocal of the second fraction.

3 0
3 years ago
Once again assistance is needed. Help!!!!
tatiyna

Answer:

D

Step-by-step explanation:

hope this helps

8 0
3 years ago
Read 2 more answers
9. Solve the equation. Check your solution, if possible.<br> 1.5x + 1.3x = -8.4
Maksim231197 [3]

Answer:

-3

Step-by-step explanation:

1.5x + 1.3x = -8.4

2.8x = -8.4

x=-3

6 0
3 years ago
Read 2 more answers
Subtract 43 from 20 raised to the 7th power; then multiply by 3.
viktelen [127]

Hi there! :)

<u>Answer:</u>

Subtract 43 from 20 raised to the 7th power; then multiply by 3. The answer is: <u>3,839,999,871</u>

Step-by-step explanation:

"Subtract" means to take away a number from another.

" 20 raised to the 7th power" is the same thing as 20 exponent 7: 20^{7}


SO, you want to take away 43 from 20^{7} and then multiply the answer by 3:

(20^{7} - 43) × 3

20^{7} = 1,280,000,000

(1,280,000,000 - 43) × 3

1,280,000,000 - 43 = 1,279,999,957

1,279,999,957 × 3

1,279,999,957 × 3 = <u>3,839,999,871</u>


There you go! I really hope this helped, if there's anything just let me know! :)

6 0
3 years ago
Read 2 more answers
That’s a 4/3 btw Buh plz a mf struggling in summer school
Inessa [10]
I think it's the third one cause the 3 will b "out of the house" while the 4 will b the power.
5 0
3 years ago
Read 2 more answers
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