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dsp73
3 years ago
8

Tomas correctly spelled 18 out of

Mathematics
2 answers:
Marat540 [252]3 years ago
8 0
C. 0.8
This is because Tomas got 2 words wrong and in the grade book -2 is 80 percent also known as 0.8
Tems11 [23]3 years ago
7 0

Answer:

0.9

Step-by-step explanation:

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Solving polynomial equations
Yuliya22 [10]

Answer:

x= 1 or x= 1.56 (3 s.f.) or x= -2.56 (3 s.f.)

Step-by-step explanation:

Please see attached picture for full solution.

5 0
3 years ago
Help me please it would be appreciated
allochka39001 [22]
Since it is the midpoint we can say:
12x  - 1 = 8x +11
All we have do to is get all the x's alone on one side

12x - 1 = 8x + 11
12x = 8x + 12    (add both sides by 1)
4x = 12   (subtract both sides by 8x)
x = 3       (divide both sides to get what x is)
8 0
3 years ago
One day in the playground,the ratio of the number of boy to the number of girl is 3:5 later 6girls come, 9boy leave, the ratio o
choli [55]

Answer:

The number of boys are 18 and the number of girls are 30.

Step-by-step explanation:

The ratio of number of girls to the boys = 3 : 5

Let the number of girls is g and boys is b initially.

b : g = 3 : 5

5 b = 3 g ..... (1)

Now, girls are 6 + g and boys are b - 9

So, the ratio is

(b - 9) : (6 + g) = 1 : 4

4 b - 36 = 6 + g

4 b - g = 42 .... (2)

From ( 1 ) and ( 2 )

4 b - \frac {5 b}{3}= 42\\\\\frac{7 b }{3} = 42\\\\b = 18

And , g = 5 x 18/3 = 30

So, the number of boys are 18 and the number of girls are 30.  

7 0
3 years ago
Jasmine has 5 books that she wants to read. She wants to read the nonfiction book first and the mystery book last. In how many d
umka21 [38]
The different combinations is 9, since we can't rearrange the two novels.
I did 3*3 which equals 9.
4 0
3 years ago
Read 2 more answers
Find the sum of the first 6 terms of the series 3-6+12-24+
irinina [24]
Theres only 4 but the answer is -15
3 0
3 years ago
Read 2 more answers
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