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Naya [18.7K]
2 years ago
13

2. The ratio of boys to girls in a classroom is 2 to 3. If there are 18 boys in the classroom, how many

Mathematics
2 answers:
andre [41]2 years ago
8 0

Answer:

27 girls

Step-by-step explanation:

boys 2 : 3 girls

18: x

18×3= 54:2x

54÷2= 27

wariber [46]2 years ago
3 0

Answer:

27  girls

Step-by-step explanation:

boys  2/5  = 0.4  (40%) = 18

girls  3/5 = 0.6  (60%)= x

   40%----------18

   60%-----------x

Cross multiplication

      40x = 60x18

40x = 1080

x=27

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Consider the polynomial function q(x) = 3x^4 – 5x^3 – 2x^2 + x – 18.
sergeinik [125]

Answer: As x —> positive infinity, q(x) —> positive infinity, and as x —> negative infinity, q(x) —> positive infinity

Step-by-step explanation:

Khan Academy! Hope this helps

3 0
3 years ago
Read 2 more answers
MATHEMATICS<br> Evaluate (0.110 two)³ expressing your answer in base ten.
zysi [14]

Evaluating (0.110 two)³ in base ten is  (343/512) ten

The question has to do with number base

<h3>What is number base?</h3>

A number base is a system of numbering used to represent numbers.

<h3>How to evaluate  (0.110 two)³ in base ten.</h3>

Since we have  (0.110 two)³,we desire to convert  0.110 two to base ten.

So, converting 0.110 two to base ten, following the procedure, we have that

0.110 two = 0 × 2⁰ + 1 × 2⁻¹ + 1 × 2⁻² + 1 × 2⁻³

= 0 × 2⁰ + 1 × 1/2¹ + 1 × 1/2² + 1 × 1/2³

= 0 × 1 + 1 × 1/2 + 1 × 1/4 + 1 × 1/8

= 0 + 1/2 +1/4 + 1/8

= (4 + 2 + 1)/8

= 7/8

So, thus 0.110 two = (7/8) ten

Thus we see that (0.110 two)³ = (7/8)³ ten

= (343/512) ten

So, expressing (0.110 two)³ in base ten is  (343/512) ten

Learn more about number base here:

brainly.com/question/27072175

#SPJ1

4 0
1 year ago
Pls help plsssssssssssssssssssssss
iren [92.7K]

Answer:

It would be 14 because since each book is 3.5cm thick times that by 4 and get 14.

8 0
2 years ago
Read 2 more answers
Someone please help me answer this
Talja [164]
84 is the answer I think
8 0
3 years ago
Read 2 more answers
Solve for x 73 =(9/10x)+19
Yuliya22 [10]
73=(\frac{9}{10}x)+19

To solve x:

1. Substract 19 in both sides of the equation:

\begin{gathered} 73-19=(\frac{9}{10}x)+19-19 \\  \\ 54=\frac{9}{10}x \end{gathered}

2. Multiply both sides of the ewuation by 10/9:

\begin{gathered} 54\cdot\frac{10}{9}=\frac{9}{10}x\cdot\frac{10}{9} \\  \\ \frac{540}{9}=x \\  \\ 60=x \end{gathered}<h2>Then, the value of x is 60 (x=60)</h2>
3 0
9 months ago
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