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sweet [91]
3 years ago
12

1) In a class of 30 children, 60% of the

Mathematics
2 answers:
Irina-Kira [14]3 years ago
5 0
There are 18 girls in that class
Tpy6a [65]3 years ago
4 0

Answer:

18 students in the class are girls

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How would you write 2x^2-7=11 in both quadratic property and square root property?
dangina [55]

Answer:

Quadratic Property 2x^2-18=0

Square Root Property x=√9 or x=+3 or x=-3

Step-by-step explanation:

Quadratic Property or a quadratic Function is of the form ax^2+bx+c=0. So our task is to equate the given expression to zero. We can equate the expression to zero by subtracting 11 on both the sides. In doing so, we get 2x^2-18=0. This is the quadratic Property of the given Expression.

Square property is finding the value for x. we have make x equal to some value. Since we already have the quadratic Property as 2x^2-18=0, we can use this to find the value of x.

so, 2x^2=18

or x^2=18/2=9

or x=√9= +3 or -3.

6 0
3 years ago
On the coloring sheet, thd a ratio<br> is equivalent to 3/10.
DerKrebs [107]

Answer:

Equivalent ratios:

3 : 10   6 : 20   9 : 30   12 : 40   15 : 50   18 : 60   21 : 70   24 : 80   27 : 90   30 : 100   33 : 110   36 : 120   39 : 130   42 : 140   45 : 150   48 : 160   51 : 170   54 : 180   57 : 190   60 : 200   63 : 210   66 : 220   69 : 230   72 : 240   75 : 250   78 : 260   81 : 270   84 : 280   87 : 290   90 : 300

<u>( Brainlyst will help my rank <3 )</u>

8 0
3 years ago
PLEASE HELP!!!<br> Will give brainiest!
pentagon [3]

Answer:

you should download the app Socratic it lets you take a picture of the problem and shows you step by step how to solve it. it also gives you multiple resources to get the answer

5 0
3 years ago
Is -3+3-3+3-3+3 a arithmetic?
bezimeni [28]

Answer:

- 3 + 3 = 0 - 3 =  - 3 \\  - 3 + 3 = 0 - 3 =  - 3 \\  - 3 + 3 = 0

3 0
3 years ago
Read 2 more answers
HELP IF YOU'RE GOOD AT GEOMETRY
Jet001 [13]

Answer:

corresponding angles- 4 and 8, 3 and 7, 1 and 5, 2 and 6

same side interior angles- 2 and 5, 3 and 8

alternate interior angles- 3 and 5, 2 and 8

alternate exterior angles- 1 and 7, 4 and 6

Step-by-step explanation:

8 0
3 years ago
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