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Musya8 [376]
3 years ago
8

Can someone help me please

Mathematics
1 answer:
zloy xaker [14]3 years ago
7 0

Answer:

Its a i just took the test

Step-by-step explanation:

You might be interested in
CALLING ALL MATH GENIUS!!! Help! Please!
IrinaK [193]

2) 7/8+1/3+1/2=1\frac{17}{24}, so your answer is A

3) 1/9+1/12, it's LCD (lest common denominator) is 36, \frac{1*4}{9*4} + \frac{1*3}{12*3} = \frac{4}{36} + \frac{3}{36} = \frac{4+3}{36} = \frac{7}{36} so your answer is also A

4) 13+\frac{1}{4} +\frac{2}{3} find the Least Common Multiple (LCM) of

4, and 3, which is 12. Now make the denominators the same as the LCD, 13+\frac{1*3}{4*3} +\frac{2*4}{3*4}. Now Simplify; 13+\frac{3}{12} +\frac{8}{12} =13+\frac{3+8}{12} =13\frac{11}{12}, D is your answer.

5) LCD=9, so make the denominators the same as the LCD, \frac{4}{9} - \frac{1*3}{3*3} = \frac{4}{9} - \frac{3}{9} = \frac{4-3}{9} =\frac{1}{9}. Your answer is B.

6) 30-22\frac{5}{6}, (use.the.rule...a\frac{b}{c}=\frac{ac+b}{c}...because.22\frac{5}{6}.is.an.improper.fraction)

30-\frac{22*6+5}{6} =30-\frac{132+5}{6}=30-\frac{137}{6} = make the denominators the same 30*\frac{6}{6} -\frac{137}{6} =\frac{180}{6} -\frac{137}{6} =\frac{43}{6} =7\frac{1}{6}

7) 9\frac{5}{12} is an improper fraction, so you the previous rule I said to use for improper fractions.

\frac{9*12+5}{12} -4\frac{2}{3} =\frac{108+5}{12}-4\frac{2}{3}, also 4\frac{2}{3} is an improper fraction so use the rule again.

\frac{113}{12} -\frac{12+2}{3} =\frac{113}{12} -\frac{14}{3}, LCD=12

Make the denominators the same \frac{113}{12}-\frac{14*4}{3*4}=\frac{113}{12}-\frac{56}{12} =\frac{113-56}{12} =\frac{57}{12}=\frac{19}{4}=4\frac{3}{4}, the answer is D

8) 21\frac{7}{9}, improper fraction

\frac{21+19+7}{19} -6\frac{8}{19} =\frac{399+7}{19} -6\frac{8}{19} = \frac{406}{19} -6\frac{8}{19}

6\frac{8}{19} is an improper faction

\frac{406}{19}-\frac{6*19+8}{19}  =\frac{406}{19} -\frac{114+8}{19} =\frac{406}{19} -\frac{122}{19} =\frac{406-122}{19}=\frac{284}{19}=14\frac{18}{19}, the answer is B.

9) \frac{8}{9} -\frac{6}{9} =\frac{2}{9}, You're trying to see how much farther he ran on Monday compared to Wednesday, so Monday goes first.

10) \frac{3}{4} -\frac{1}{8} =\frac{5}{8}, You're trying to see how much more you need, so you need to subtract 1/8 (what you already have) and 3/4 to see how much you need left.

11) You're tyring to see how much she need all together, so you're looking for the sum, which is 12\frac{3}{8}, so the answer is C.

12) You're seeing how much he grew over the past years, so you'll be looking for the sum (addition) 1\frac{3}{4}+ 2\frac{2}{3} =4\frac{5}{12}

19) In this problen, Claude used some of his ribbon, which in turn decreased the amount he has left, so you are looking for the difference (In this case, what he has now, vs what he originally had.) 5\frac{1}{2} -4\frac{2}{3}= \frac{5}{6}, your answer is C.

20) Find the time it takes in all the routes by subtracting the time you leave to the time you get there, the answer is route four because it is 2 hours and 5 minutes.

Hope this helps, have a BLESSED and wonderful day, as well as a safe one!

-Cutiepatutie ☺❀❤

4 0
3 years ago
Please help me there due tonight!!! All help is appreciated.
Sveta_85 [38]

Answer:

1. 160cm²

2. 176.25cm²

3. 33.75ft²

Step-by-step explanation:

Area triangle = (1/2)(base)(height)

1)

total area = 2(area small triangle) + 2(area big triangle)

= 2(0.5(8)(9))+2(0.5(8)(11))

=72+88=160cm²

2)

total area = 2(area small triangle) + 2(area big triangle)

= 2(0.5(7.5)(7.5))+2(0.5(7.5)(16))

= 56.25 + 120 = 176.25cm²

3)

total area = 2(area small triangle) + 2(area big triangle)

= 2(0.5(4.5)(2.5))+2(0.5(4.5)(5))

= 11.25+22.5 = 33.75ft²

4 0
3 years ago
Naveena bought a pen for rupees 23.75,after getting 5%discount on it , then the list price is​
ira [324]

Answer:

22.6 or 22.5625

Step-by-step explanation:

23.75 times .05 then subtract that from 23.75

22.5625 rounded to the nearest tenth 22.6

7 0
3 years ago
I can’t figure out this problem <br><br> 15x+2=10x+7
pav-90 [236]

Answer:

<h2>The answer is x=1</h2>

Step-by-step explanation:

pls mark as brainliest

8 0
3 years ago
Read 2 more answers
Let f(x)=2x and g(x)=2x
Bess [88]

Answer:

Rewrite (Lambert form):

e^{\ln \left(2\right)\left(1-\left(-\frac{u}{\ln \left(2\right)}\right)\right)}\left(-\frac{u}{\ln \left(2\right)}\right)=1

Simplify :

-\frac{e^{\ln \left(2\right)+u}u}{\ln \left(2\right)}=1

Solve:

u=-2\ln \left(2\right),\:u=-1\cdot \ln \left(2\right)

Result:

x=2,\:x=1

Hope this helped u :)

If this was too complicated I can edit it for you.

6 0
3 years ago
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