MATHEMATICS MIDDLE SCHOOL

Maths
Share £72 in the ratio 2:7

Answers

Answer 1
Answer: 2+7= 9 
72 / 9 = 8
8 * 2 = 16
8 * 7 = 56 
16:56

Key: 
* = times
/ = divide

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Can you draw an isosceles triangle with one 80 degree angle?

Answers

Sure. Then the other two angles are 50 degrees each.
An isosceles triangle has 2 sides that are the same length. The opposite angles of equivalent sides will also be equivalent. So, if you have a triangle with an 80 angle the other 2 angles will be 50 degrees each (to total 180 degrees). Since these angles are equivalent, the opposite sides are equivalent and you satisfy the requirement for an isosceles triangle.

Yay!

The values in the table represent a linear function. what is the common difference of the associated arithmetic sequence?x: 1, 2, ,3 ,4 ,5
y: 6, 22, 38, 54, 70.

A) 1
B) 20
C) 16
D) 5

Answers

Answer:  The correct opion is

(C) 16.

Step-by-step explanation:  Given that the values in the following table represent a linear function.

x:       1,     2,    3,     4,    5

y:       6,    22,  38,  54,  70.  

We are to find the common difference of the associated arithmetic sequence.

If y = f(x) is the given function, then we see that

f(1) = 6,  f(2) = 22,  f(3) = 38,  f(4) = 54 and f(5) = 70.

So, the common difference of the associated arithmetic sequence is given by

f(2)-f(1)=22-6=16,\n\nf(3)-f(2)=38-22=16,\n\nf(4)-f(3)=54-38=16,\n\nf(5)-f(4)=70-54=16,~~~\cdots.

Thus, the required common difference of the associated arithmetic sequence is 16.

Option (C) is CORRECT.

Answer:

c

Step-by-step explanation:

You can find that 22-6=38-22=54-38=70-54=16

so the answer is c 16

A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red marble is 1 in 5. Yasmine returns the marble to the bag and adds five more red marbles to the bag. The probability that she takes one red marble at random is now 1 in 3. How many red marbles were originally in the bag?

Answers

There was one red marble because it said that the probability of choosing a red marble is 1/5 so the other marbles are blue. 
Hope this helps. 

Round 7.5905 to the nearest..
0.1 =​

Answers

Answer:

The answer is 7.6.

Step-by-step explanation:

Lisa is standing on a dock beside a lake. She drops a rock from her hand into the lake. After the rock hits the surface of the lake, the rock's distance from the lake's surface changes at a rate of −6 inches per second. If Lisa holds her hand 4 feet above the lake's surface, how far from Lisa's hand is the rock 6 seconds after it hits the surface?

Answers

In feet it is 7' but in inches it is 84"

Which two square numbers have a difference of 51

Answers

49 and 100 are the answers as 100-49=51 and they are both square numbers as 100 square rooted is 10 and 49 square rooted is 7 is that a good enough answer please tell in comments
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