2 years ago

Please help, this is timed :))

Mathematics

1 answer:

Margarita [4]2 years ago

8 0

This is the right answer

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8. Three groups of 10 kids. The average weight of a kid in each

sammy [17]

Answer: 385

Step-by-step explanation:

Mean the three groups of 10 kids=35

Total weight of 3 groups (10x35)=350

Mean weight of 3 groups and one boy ( 35 + 350)=385

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3 years ago

If two rectangles have the same perimeter, do they have to be congruent? Explain how you know.

ikadub [295]

Answer:

Step-by-step explanation:

Take square 4 X 4. Perimeter =16

Take rectangle h2 X w6. Perimeter =16

Clearly the same perimeter and not congruent

but this is just what I think

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2 years ago

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HURRY PLEASE!

snow_tiger [21]

Answer:

Step-by-step explanation:

the answer is D. 6 ≤ x < ∞

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3 years ago

The midpoint of AB is M(7. – 7). If the coordinates of A are (8,-6), what are the

IRISSAK [1]

Answer: B = (6,-8)

Step-by-step explanation:

first the midpoint formula is $(\frac{x1+x2}{2},\frac{y1+y2}{2})$

then you take the x co-ordinate of A and substitute it into one of the x values in the first part of the formula:

$\frac{8+x}{2}=7$

then solve it like an equation:

$8+ x=14\\x=6$

then you take the y co-ordinate of A and substitute it into one of the y values in the second part of the midpoint formula:

$\frac{-6+y}{2} =-7$

then solve it like an equation:

$-6+y=-14\\y=-8$

∴ the answer is x=6, y= -8

which is expressed as a point, B(6,-8)

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3 years ago

14 over 70 in simplest form

Luda [366]

14/70 in it's simplest form is 1/5

hope this helps :)

5 0

3 years ago

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