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lakkis [162]
3 years ago
14

WILL MARK BRANLIEst

Mathematics
1 answer:
LenaWriter [7]3 years ago
5 0

Answer:

click on the thanks button

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In one grade of 150 students, the ratio of boys to girls is 2:3. How many boys are in that grade?
trapecia [35]

Answer:

The numbers of boys in one grade are 60 .

Step-by-step explanation:

As given

In one grade of 150 students .

The ratio of boys to girls is 2:3.

Let us assume that the scalar multiple of boys and girls be x.

Thus number of boys = 2x

Number of girls = 3x

Than the equations becomes

2x + 3x = 150

5x = 150

x = \frac{150}{5}

x = 30

Thus number of boys = 2 × 30

                                    = 60

Therefore the numbers of boys in one grade are 60 .


7 0
3 years ago
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Find the total amount in Mr. G’s account, if he invests $9000 for 5 years at a 6% interest rate. *
geniusboy [140]

Answer:

C

Step-by-step explanation:

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Use the spinner to determine the probability of each outcome type your answers as fractions in simplest form. Fractions should b
DaniilM [7]

Answer:

Probability of spinning a 1 is 25 percent.

Probability of spinning an even number is 50 percent

Probability of spinning a 5 is 0 percent

probability of spinning an odd number is 50 percent

Step-by-step explanation:

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In need help asap-10 points
Dmitry [639]

Answer:

9.8 km

Step-by-step explanation:

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Prove, Cosec2A + cot2A = cotA​
elena-s [515]

Proved

Step-by-step explanation:

Cosec2A + cot2A = cotA​

On Left hand-side

Cosec2A + cot2A = \frac{1}{sin2A} +\frac{cos2A}{sin2A} \\\\\\

=\frac{1}{2sinAcosA} +\frac{2cos^2A-1}{2sinAcosA}

\frac{1+2cos^2A-1}{2sinAcosA} \\\\\\=\frac{2cos^22A}{2sinAcosA} \\\\=\frac{cosA}{sinA} \\\\\\=cotA

Learn More

Trigonometric ratios: brainly.com/question/12462203

Keywords: Trigonometeric

#LearnwithBrainly

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