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4 years ago

How do I go about solving the problem?

Mathematics

1 answer:

s344n2d4d5 [400]4 years ago

8 0

Answer:

See below.

Step-by-step explanation:

You have already drawn the line x = -1 . This is the vertical line passing through the point F.

So if we reflect across this line, F will stay where it is at (-1,-1) (because F is on the 'mirror'). E is 3 units in front of the line so is reflected 3 units the other side.

The image of E, E' will be at (2, -3). The image of G, G' will be at (-2,-3).

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Your third-grade classroom has 32 boys and girls. Two-thirds of the boys and three-fourths of the girls are going on a field tri

adelina 88 [10]

Answer: The ratio of boys to girls would be 3 : 5 .

Step-by-step explanation:

Since we have given that

Number of boys and girls = 32

Fraction of boys are going on a field trip = $\dfrac{2}{3}$

Fraction of girls are going on a field trip = $\dfrac{3}{4}$

Number of children left = 9

Let the number of boys be 'b'.

Let the number of girls be 'g'.

According to question, it becomes ,

$b+g=32------------(1)\\\\32-9=\dfrac{2}{3}b+\dfrac{3}{4}g\\\\23=\dfrac{2b}{3}+\dfrac{3g}{4}-------------(2)$

From eq(1), we get that g = 32-b

So, it becomes,

$\dfrac{2}{3}b+\dfrac{3}{4}(32-b)=23\\\\\dfrac{2}{3}b+24-\dfrac{3}{4}b=23\\\\\dfrac{2}{3}b-\dfrac{3}{4}b=23-24=-1\\\\\dfrac{8b-9b}{12}=-1\\\\\dfrac{-b}{12}=-1\\\\b=-1\times -12\\\\b=12$

so, number of girls would be 32 - b = 32 - 12 = 20

So, Ratio of boys to girls in class would be 12 : 20 = 3 : 5.

Therefore, the ratio of boys to girls would be 3 : 5 .

7 0

4 years ago

24 times 10 times 90 equals 90 times 2,400

klasskru [66]

WRONG!

24 x 10 x 90

(24 x 10) x 90

240 x 90

That is NOT the same as 2400 x 90

4 0

4 years ago

I’m confused on this one

Blababa [14]

The three medians of a triangle intersect at the centroid of the triangle.
The centroid is 2/3 of the way from a vertex to the midpont of the opposite side.

BG = (2/3)BF

BG = (2/3) * 9

BG = 6

3 0

3 years ago

To solve 35-19, jack used 35-20 what did he do next

Kay [80]

Then he got a sum of -1 (or negative one)

8 0

3 years ago

Read 2 more answers

29 points! Simplify. So uh yeah thats it.

Leto [7]

Answer:

27 $\frac{27}{4x^{6}y^{8} }$

Step-by-step explanation:

your going to raise the power on the numerator by 3 and the denominator 4 so you get $\frac{4*27x^{6} y^{12} }{16x^{12}y^{20} }$ then reduce and simplify

7 0

4 years ago