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il63 [147K]
3 years ago
15

Help me plz I neeed​

Mathematics
2 answers:
dybincka [34]3 years ago
8 0

AnsWER:

shaded: 40% unshaded 60%

Step-by-step explanation:

ONLY 4 ROWS ARE SHADED

non shaded are 6 rows

10 rows in total

VMariaS [17]3 years ago
5 0

Answer:

shaded part represents 40% of the whole and the unshaded part represents 60% percent of the whole

Step-by-step explanation:

10 equal parts of the whole. 40 boxes are shaded meaning 40% of the whole is shaded. 60 boxes are not shaded meaning 60% percent of the whole is unshaded. Hope this helps!

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Solve the following system of equations by the substitution method. 2x = 10y - 8 3x + 4y + 5 = 0
Natali [406]

Answer:

x = -\frac{41}{19}

y = \frac{7}{19}

Step-by-step explanation:

2x = 10y - 8

3x + 4y + 5 = 0

2x = 10y - 8

x = 5y - 4

3x + 4y + 5 = 0

3 ( 5y - 4 ) + 4y + 5 = 0

19y - 7 = 0

19y = 7

y = \frac{7}{19}

x = 5y - 4

x = 5 ( \frac{7}{19} ) - 4

x = -\frac{41}{19}

5 0
3 years ago
Before conducting some experiments, a scientist mixes 1/2 gram of Substance A with 3/4 grams of Substance B. If the scientist us
Tju [1.3M]

Answer: 10

<u>Step-by-step explanation:</u>

 (\frac{1}{2}+\frac{3}{4})÷\frac{1}{8}

= (\frac{1}{2}(\frac{2}{2})+\frac{3}{4})÷\frac{1}{8}

= (\frac{2}{4}+\frac{3}{4})÷\frac{1}{8}

= (\frac{5}{4})÷\frac{1}{8}

= (\frac{5}{4})x\frac{8}{1}

= \frac{40}{4}

= 10

4 0
3 years ago
What number is 40% of 720
Zarrin [17]
You would have to set you problem up like
   x         40
____=_____
 720     100

you would multiply 40 by 720 then you would divide 28,800 by 100 your answer will be 288.
3 0
3 years ago
Ellen flipped a coin 80 times. the coin landed heads up 44 times and tails up 36 times. what is the experimental probability of
Vaselesa [24]

Answer:

\frac{9}{20}

Step-by-step explanation:

experimental probability is the probability of an event occuring when we perform an experiment.

It goes according to the results of the experiment, not the theory behind it.

<u>Probability of landing tails up, therefore, is the number of times it came tails up divided by the total number of times the coin was flipped.</u>

<u />

Hence

P (tails) = 36/80 = 9/20

5 0
3 years ago
Read 2 more answers
I need help what is 6+(-7)
natita [175]

Answer:

-1

because you are adding up to 0 to get back to the positive.

8 0
2 years ago
Read 2 more answers
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