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4 years ago

2 1/4 is equal to what percent?

Mathematics

2 answers:

son4ous [18]4 years ago

4 0

Answer:

2 1/4 = 2 + 1/4 = 2 + 0.25 = 2.25 = 225/100 = 225%

Margarita [4]4 years ago

3 0

Answer:

Step-by-step explanation:

first convert 2 1/4 into improper fraction

9/4 into percent=2.25percent is the answer

thanxxxxx

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Find the point of intersection of the pair of straight lines.

Ber [7]

Answer:

(x,y) = ( $\frac{9}{2}$ , $\frac{1}{2}$ )

Step-by-step explanation:

We have to find point of intersection of two lines.

the given equations of line are:

10x - 4y = 43 - (1)

-3x - 3y = -15 - (2)

Multiplying the first equation by 3 we have:

(10x - 4y = 43)×3 = 30x - 12 y = 129 - (3)

Multiplying second equation by 10 we have :

(-3x - 3y = -15)×10 = -30x -30y = -150 - (4)

Now, adding equation (3) and (4) we have:

-42y = -21

⇒ y = $\frac{1}{2}$

Now, putting this value of y in equation (1), we have

10x - 2 = 43

⇒ 10x = 45

⇒x = $\frac{9}{2}$

Hence, the intersection of given two lines is (x,y) = ( $\frac{9}{2}$ , $\frac{1}{2}$ )

4 0

3 years ago

PLEASSSEEE HELLPPP

Sidana [21]

Answer:

D: 14q + 21√qr

Step-by-step explanation:

We want to find the product of;

(2√q + 3√r) and 7√q.

Where p and q are integers.

Using distributive property, we have;

(2√q × 7√q) + (3√r × 7√q)

>> 14q + 21√qr

Correct option is D

3 0

3 years ago

Medians $\overline{dp}$ and $\overline{eq}$ of $\triangle def$ are perpendicular. if $dp= 18$ and $eq = 24$, then what is ${de}$

monitta

Denote by M the point of intersection of the medians.
Denote also the distance DM by x and the distance QM by y.
From the median properties of triangles we know that
$y=\frac{1}{3}\timesFQ=\frac{1}{3}\times24=8$
Also,
$x=\frac{2}{3}\times DP=\frac{2}{3}\times 18=12$
Since the medians are perpendicular, we deduce that:
$x^2+y^2=DQ^2\iff DQ=\sqrt{8^2+12^2}=14.4$
Then, since $DE=2\times DQ\text{ then }DE=2\times 14.4=28.8$