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Marizza181 [45]
3 years ago
13

Two less than thrice a number is 2 more than two third of

Mathematics
1 answer:
harkovskaia [24]3 years ago
8 0

Step-by-step explanation:

Let the two numbers be x and y.

\therefore \: 3x - 2 =  \frac{2}{3} y + 2 \\  \\  \therefore \: 3x - \frac{2}{3} y = 2 + 2\\  \\  \therefore \: 3x - \frac{2}{3} y = 4 \\  \\  \therefore \: 9x - 2y = 12

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neonofarm [45]
It is the second one
7 0
3 years ago
What is the best estimate of the measure of the angle shown?
KengaRu [80]
My answer would be 65° because none of the other choices make sense!

This angle is clearly under 90°, which eliminates the choices of 92° and 138°. This angle is also clearly bigger than 27°, which eliminates this choice too!

I really hope this helped, if there’s anything just let me know! ☻
8 0
4 years ago
Read 2 more answers
You borrow $680 from your brother and agree to pay back $750 in 3 months. What simple interest rate will you pay?
Anastasy [175]

Answer:

hence rate interest r = 41.176%

Step-by-step explanation:

The amount borrowed= $680

amount payed back = $750

therefore, interest incurred = 750-680= $70

time, t= 3 months = 3/12= 0.25 years

rate%, r

we know that SI= \frac{PRT}{100}

70= \frac{680\timesr\0.25}{100}

r=\frac{7000}{0.25\times680} = 41.176

hence rate interest r = 41.176%

5 0
3 years ago
The ratio of girls to boys in a particular classroom is 8: 7. How many boys are in the class if there are 45 students?
Dmitry [639]

9514 1404 393

Answer:

  21

Step-by-step explanation:

Rearranging the given ratio, we can find the ratio of boys to the total.

  boys : (boys +girls) = 7 : (7+8) = 7 : 15

Then the number of boys is ...

  (7/15)(45) = 21

There are 21 boys in the classroom.

8 0
3 years ago
A and B contributed 2700 and 1800 respectively to start a business. They agreed to share the profit in the ratio 7:5 respectivel
Phoenix [80]

Answer:

58.33%

Step-by-step explanation:

A's Contribution = 2700

B's Contribution= 1800

Ratio = 7:5

Profit = 900

Total Ratio = 7+5 = 12

First , Calculate both share of the profit.

A's Share= 7/12 ×900

525

B's share= 5/12 ×900

375

Now , express A's Share as a percentage

A's Share= 525/900 ×100

58.33%

5 0
3 years ago
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