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2 years ago

Which ratio would allow you to conver from 45 cm into feet

Mathematics

1 answer:

seropon [69]2 years ago

6 0

Answer:

1:0.0328084

Step-by-step explanation:

1 cm = 0.0328084 foot

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Class A has 25 pupils and class B has 28 pupils. Both classes sit the same maths test. The mean score for class A is 69. The mea

il63 [147K]

Answer:

Step-by-step explanation:

Mean would mean average, which in this case is $\frac{x+y}{2}$

so your equation would look like $\frac{69+x}{2}=41$

Next multiply both sides by to clear the fraction $2*(\frac{69+x}{2})$

to get $69+x=89$

Subtract 69 from both sides $69+x=82\\-69 -69$

you get $x = 13$

6 0

2 years ago

Find the distance between (-7,-2) and (11,3)

jarptica [38.1K]

Answer:

The answer is

<h2> $\sqrt{349} \: \: units$ </h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-7,-2) and (11,3)

The distance between the points is

We have the final answer as

<h3> $\sqrt{349} \: \: units$ </h3>

Hope this helps you

5 0

2 years ago

Mr Harrison is 9 months old. How old is Mr Harrison daughter in days

Reil [10]

Answer:

273.75 days

Step-by-step explanation:

3 0

1 year ago

The line 2x + 3y = -6 intersects the x axis at (a,0) and the y axis at (0,b) what is a + b ?

USPshnik [31]

2x + 3y = -6 (Subtract 2x from both sides)
3y = -2x - 6 (Divide both sides by 3 to isolate x) which will give you y = -2/3x - 2 and this graphed would cross the x-axis at (-3,0) and the y-axis at (0, -2). So a + b = -5

3 0

2 years ago

What is the supplement of 123°

makkiz [27]

Since (x - 2)° and (2x + 5)° represent a pair of supplementary angles, then their sum must be equal to 180°. Therefore, the two supplementary angles are 57° and 123°.

8 0

2 years ago