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katovenus [111]
3 years ago
13

Help me plssssssssssss

Mathematics
2 answers:
Katarina [22]3 years ago
7 0
The answer is 8. Hope that helps!
Igoryamba3 years ago
6 0

Answer:

Divide 12 by 3/4 (.75).  Giving you the answer of 16.

Step-by-step explanation:

Answer to b. is 8

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When you do a negative number minus a negative number do you get a positive?
spin [16.1K]
You get a positive number because you can use the leave, change, change rule for the signs. After the rule it would be a minus + a positive. The answer will vary depend on the size of each number.
8 0
3 years ago
Danny walks at an average speed of 5 m/s foe 1 minute. Work out the distance that Danny has travelled in metres.
Dahasolnce [82]

Answer:

D = 300 m

Step-by-step explanation:

<u><em>Given :</em></u>

Speed = 5 m/s

Time = 1 min = 60 secs

<u><em>Required:</em></u>

Distance = ?

<u><em>Formula :</em></u>

Speed = Distance/Time

<u><em>Solution:</em></u>

Distance = Speed × Time

D = 5 × 60

D = 300 m

4 0
3 years ago
Read 2 more answers
PLEASE HELP 11 points
tatuchka [14]

Answer:

12.56

Step-by-step explanation:

6 0
3 years ago
Please need help in these 3 algebra questions !!!!
Marysya12 [62]

Answer:

\large\boxed{7.\ B.\ 8s^2+16s+1}\\\\\boxed{8.\ D.\ -15t^9u^{11}}\\\\\boxed{11.\ C.\ 3,\ -2}

Step-by-step explanation:

7.\\(3s^2+7s+2)+(5s^2+9s-1)=3s^2+7s+2+5s^2+9s-1\\\\\text{combine like terms}\\\\=(3s^2+5s^2)+(7s+9s)+(2-1)\\\\=8s^2+16s+1

8.\\(-3t^2u^3)(5t^7u^8)=(-3\cdot5)(t^2t^7)(u^3u^8)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=-15t^{2+7}u^{3+8}=-15t^9u^{11}

11.\\n-the\ number\\\\n^2=n+6\qquad\text{subtract}\ n\ \text{and}\ 6\ \text{from both sides}\\\\n^2-n-6=0\\\\n^2+2n-3n-6=0\\\\n(n+2)-3(n+2)=0\\\\(n+2)(n-3)=0\iff n+2=0\ \vee\ n-3=0\\\\n+2=0\qquad\text{subtract 2 from both sides}\\n=-2\\\\n-3=0\qquad\text{add 3 to both sides}\\n=3

4 0
3 years ago
At the farmers market, Nathaniel buys two dozen oranges at $3.50 per dozen, four kilograms of apples at $3.25 per kilogram, two
kirill [66]
Nathaniel's total cost is $(3.50 x2 + 3.25 x4 +1.90 x2 +1.20) = $24 he got 5% off so he paid $24- (24* 5/100) =$22.80
3 0
3 years ago
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