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2 years ago

There are 45 students in a class. The ratio of boys to girls is 2:3. How many boys are there in the class?

Mathematics

1 answer:

Lena [83]2 years ago

7 0

Answer:

18 boys

Step-by-step explanation:

we add 2 and 3 because they are equal parts:

2+3=5

Then we divide 45 by 5 because we want to find what 1 part equals"

45/5=9

We now do 9*2 to get an answer of:

9*2=18

hope this makes sense!

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What is the equation of the translated function, g(x), if

Ivanshal [37]

Answer:

D. g(x) = (x+ 4)² + 6

Step-by-step explanation:

Here, the given function is f(x) = x²

Now,if a graph x² is translated by (h,k) where:

h = Translation done towards RIGHT

k = Translation done towards UP

Then the translated equation is given as:

y = (x-h)² + k .... (1)

Now here, the graph is translated 6 UNITS UP and 4 UNITS LEFT.

⇒ h = - 4 and k = 6

Substituting the value of h, k in (1) , we get:

g(x) = (x-(-4))² + 6 = (x+ 4)² + 6

⇒ g(x) = (x+ 4)² + 6

Hence, the equation of the translated function, g(x) is g(x) = (x+ 4)² + 6.

3 0

2 years ago

Please help I do not get

katen-ka-za [31]

Answer:

(a) 51%

(b) 41%

Step-by-step explanation:

We can simplify this problem down by realizing that the amount of girls over 200 will get us our percentage as a decimal.

Looking at this table, we can see that $30+72=102$ girls were asked. So, $102\div200=0.51$ , and $0.51\cdot100=51$ .

We can also see that $30+52=82$ people preferred video games, so $82\div200=0.41$ , and $0.41\cdot100=41$ .

Hope this helped!

8 0

3 years ago

Read 2 more answers

Which expression is eq to (125^2/125^4/3)

sweet [91]

Answer:

Step-by-step explanation:

So the denominator can be simplified to 5⁴ → $(5^3)^\frac{4}{3}$ and then the 3's cancel out and we are left with 5⁴

Now our new fraction is $\frac{125^{2} }{5^{4} } = \frac{15625}{625}$ which then simplifies to 25

5 0

3 years ago

What is the answer <br> simplify 2(5x+3)-2(2x-3)

Pavel [41]

Answer:Use this PEMDAS to solve

Step-by-step explanation:

Parethiesis,Exponent,Multiplication,Division,Addition,and Subtraction.

ALWAYS DO P FIRST!!!!

4 0

2 years ago

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A new internet phone company advertises that you can call any country in the world for 3¢ per minute. You regularly call your fr

Juliette [100K]

Answer:

.60 or 60 cents

Step-by-step explanation:

20 x .03 = .60

7 0

2 years ago