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Alekssandra [29.7K]
2 years ago
12

In a pass of 30 students 13 are boys

Mathematics
1 answer:
Firdavs [7]2 years ago
7 0

Answer:

Ratio of boys to all students:

13:30

Ratio of girls to all students:

17:30

Ratio of boys to girls:

13:17

Step-by-step explanation:

I think you're asking for the ratio... so I hope this helps! :D

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This is similar to the last one but this is also an quiz that’s worth a major. Can anybody help?
VashaNatasha [74]

Answer:

42

Step-by-step explanation:

Shanice: 88

Greg: (88 - 4) ÷ 2 = 84 ÷ 2 = 42

3 0
3 years ago
Solve the following system. y = x 2 - 9x + 10 and x + y + 5 = 0. The solutions are
shepuryov [24]
X+y+5=0

y=-x-5

If a solution exists y=y so we can say

x^2-9x+10=-x-5  add x+5 to both sides

x^2-8x+15=0 now factor

x^2-3x-5x+15=0

x(x-3)-5(x-3)

(x-5)(x-3) so x=3 and 5, using y=-x-5

y(3)=-8 and y(5)=-10

So the two solutions are:

(3,-8) and (5,-10)

6 0
3 years ago
Read 2 more answers
Express with radical signs instead of fractional exponents. Rationalize the denominator.
CaHeK987 [17]

x^{\frac{1}{2}} = \sqrt[2]{x} and 3^{-\frac{1}{2}} = \frac{1}{3^{\frac{1}{2}} } = \frac{1}{\sqrt[2]{3}} so

3^{-\frac{1}{2}} x^{\frac{1}{2}} = \frac{1}{\sqrt{3}} \cdot \sqrt{x}  = \frac{\sqrt{x}}{\sqrt{3}}

and you rationalize denominator by multiplying numerator and denominatr by \sqrt{3} so that gives--

\frac{\sqrt{x}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}} = \frac{\sqrt{3x}}{3}

Your answer is \frac{\sqrt{3x}}{3}

5 0
3 years ago
Molly walks to Raven's house, which is 3 miles due east of her house. Then she and Raven walk to the library, which is 4 miles d
Rudiy27

Answer:

3 hours and twenty five minutes, i think

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
PLEASE HELP 13 points BRAINLIEST and thanks and 5 star rating.
djyliett [7]

Answer:6over2


Step-by-step explanation:


8 0
3 years ago
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