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Anni [7]
2 years ago
5

A board 30 metres long is to be divided into 2pieces so that the larger piece is 3 metres longer than twice the shorter piece. H

ow long will the pieces be?
Mathematics
2 answers:
GREYUIT [131]2 years ago
7 0
The answer is : 9 and 21
yawa3891 [41]2 years ago
6 0

Answer: 9 and 21

Step-by-step explanation:

board=30m

divide by 2 pieces

one piece, we call it a

b, the other piece is b= 2a+3

a+b=30

a+2a+3=30

3a=30-3

3a=27

a=9

b=21

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WHUR Radio uses 1/5 of its of its 10 hours of daytime broadcast for commercial and 1/2 for music. How much is left for news?
Nataly [62]

Answer: 3 hours

Step-by-step explanation:

From the question, we are informed that WHUR Radio uses 1/5 of its of its 10 hours of daytime broadcast for commercial and 1/2 for music.

Hours used for commercial:

= 1/5 × 10

= 2 hours

Hours used for music:

= 1/2 × 10

= 5 hours

Hours left for news will be:

= 10 hours - 2 hours - 5 hours

= 3 hours

8 0
2 years ago
What is 8 meters increased by 25 percent
Lorico [155]
25% is 1/4 so you do 8 times 1/4 and that's 2.
8 0
2 years ago
You travel from city A to city B and back your trip last five and a half hours and you maintain a speed of 64 miles per hour the
malfutka [58]

Answer:

401 MILES

Step-by-step explanation:

miles from A to B:

64 * 5.5 = 352 miles

miles from A to C:

352 + 49 = 401 miles

3 0
2 years ago
Need help plsssssssss
kotykmax [81]

Answer:

4. 8.0

5. 27.6

6. 35.5 degrees

Step-by-step explanation:

#4- Cos 48= x/12

0.669131= x/12

x=8.0

#5

Sin 78= 27/x

0.978=27/x

0.978x=27

x=27.6

#5

Tan X= 15/21

tan x= .714

inverse tan= 35.5 degrees

6 0
3 years ago
Strawberries are on sale for $1.75 per pound. Regularly, they cost $2.50 per pound.
LenKa [72]

Answer:

I think its 30% im not 100% sure about my answer but i think this is it ok

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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