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Sergeeva-Olga [200]
3 years ago
7

How to solve 2/10b=99

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
6 0
Multiply both sides by 10.
2b=990
divide both sides by 2
b= 495
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PLEASE HURRY WILL GIVE BRAINLIEST A truck can be rented from Company A for $90 a day plus $0.30 per mile. Company B charges $70
rjkz [21]

Answer:

  40 miles a day

Step-by-step explanation:

The difference in fixed charge is $20; the difference in mileage charge is $0.50 per mile. So it will take $20/$0.50 = 40 miles for the extra mileage cost to eat up the savings in fixed cost. At that mileage, both companies will charge the same amount:

  A: 90 + 0.30·40 = 102

  B: 70 + 0.80·40 = 102

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3 years ago
9x-2y=11 <br> 5x-2y=15 <br> what is the solution to the above system of equations<br> ASAP
natali 33 [55]

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

8 0
3 years ago
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When he was little, Miguel could not sleep without his Captain Terrific action figure. It looked so life-like because it was a p
krok68 [10]
The answer is:
216×0.93÷10=20.088
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Which statements can be used to compare the characteristics of the functions
Aleks [24]
I think we need a picture to solve that
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3 years ago
Express the following as a single discount rate.
yuradex [85]

Answer:

<em>37% </em>

<em>46.8% </em>

<em>65.8% </em>

<em>59.68% </em>

<em>41.8% </em>

<em>52.5%</em>

Step-by-step explanation:

<u>Discount Rates </u>

It's a way to express that a quantity will be reduced to some other by a fixed percentage. For example, taking 40% off a $50 price means:

* Operating 40*50/100=$20 This is the discount

* Subtracting from the original price: $50 - $20 = $30. This is the reduced quantity.

The trick is doing all of that procedure more efficiently to solve the question. At the end of the procedure we did this

50 - 40*50/100 = 50*(1 - 40/100) = 50*(1-0.4)= 50 * 0.6 = $30

This means we get the same result by only multipying by a factor which is one minus the discount percentage divided by 100.

Let's start with the first homework

Discount 25% and 16%. The first discount is made by multiplying by 0.75 and the second my multiplying by 0.84. This means that the total discounted value is

0.75*0.84 = 0.63. That is a single discount of 1-0.63 = 37%

Discount 30%, 20%, and 5%. The product is

0.70 * 0.80 * 0.95 = 0.532, a single discount of 1-0.532 = 46.8%

Discount 60%, 10%, and 5%

0.40 * 0.90 * 0.95 = 0.342, a single discount of 65.8%

Discount 40%, 20%, 12 1/2%, and 4%. Let's recall that 12 1/2% = 12.5%. The product is

0.60 * 0.80 * 0.875 * 0.96 = 0.4032. A single discount or 1-0.4032 = 59.68%

Discount 25%, 20%, and 3%

0.75 * 0.80 * 0.97 = 0.582. Single discount of 41.8%

Discount 331/3%, 25%, and 5%

0.66 * 0.75 * 0.95 = 0.475, single discount of 52.5%

6 0
3 years ago
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