3 years ago

Need help with the answer

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

8 0

Answer:

137.5 is the answer

Step-by-step explanation:

2.5x5 is 12.5 and 2.5x50 is 125, add them and you get 137.5

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Simplify the expression: (3 − 4i) + (7 − 6i).

andrew11 [14]

=10-10i
Explanation:
3-4i+7-6i
(Add 3 and 7)
(Add -4i and -6i)
Put together
10-10i

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3 years ago

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(10x-4)/5=20 Solve for x write your answer in decimal form

zepelin [54]

Answer:

Step-by-step explanation:

(10x-4)/5=20

decimal is x= 10.4

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2 years ago

in a week karry ran 9.3 miles and Tricia ran 4.4 miles. Use mental math to find how much farther Karry ran than Tricia. Explain

Ede4ka [16]

i would just round 9.3 to 9 and 4.4 to 4 so i subtract 9-4 so that equals 5 so about a 5 mile diffrence

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3 years ago

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Nalia worked 3.5 hours more than lisa together they worked a total of 18 hours lisa worked h hours

andre [41]

Answer:

7.25 and 10.75 Hours

Step-by-step explanation:

Total hours Nalia and Lisa worked = 18 Hours

Nalia worked 3.5 hours then Lisa which is $h$ hours

⇒ $h + (h + 3.5) = 18$

$2h + 3.5 = 18\\2h = 18 - 3.5\\2h = 14.5\\h = \frac{14.5}{2} \\h = 7.25$

Lisa has worked for 7.25 hours

Nalia has worked for = 7.25 + 3.5 = 10.75 hours

3 0

3 years ago

Help on number 3 please thank you ver much

iVinArrow [24]

I think it would be these two

7 0

3 years ago

Need help with the answer​

Need help with the answer