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Leona [35]
3 years ago
13

5x + 3y=33 when y= 2x + 1

Mathematics
1 answer:
inn [45]3 years ago
3 0
Hope that this helps.

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A retailer sold an electric item to a customer at a loss of 10 percent the customer purchase it for rs 25425 including 13, perce
Mashutka [201]

Answer: Rs 25,000

Step-by-step explanation:

Given

Retailer sold an electric iron to a customer at a loss of 10%

Suppose the Cost price of iron is x

So, selling price is 0.9x

This price must be equal to 25425+ VAT

\Rightarrow 0.9x=25425-0.13(0.9x)\\\Rightarrow 0.9x+0.117x=25425\\\Rightarrow 1.017x=25425\\\Rightarrow x=\text{Rs }25,000

Thus, the cost price is Rs.25,000

5 0
2 years ago
There are 4 jacks and 13 clubs in a standard, 52-card deck of playing cards. What is the probability that a card picked at rando
ale4655 [162]

Answer:

16/52, or 4/13.

Step-by-step explanation:

First, since we know that the question is asking for the probability of a club <u>or</u> a jack, we know that we have to add the two probabilities. The first probability is that of picking a club, which is 13/52. The probability of picking a jack (be sure not to overlap; don't double count the jack of clubs) is 3/52. Adding these two gives us 13/52+3/52=16/52, which simplifies to 4/13.

3 0
3 years ago
Vă rog rezolvați-mi și mie aceste calcule:<br> Mersii
Akimi4 [234]
Fix you some claculations?
3 0
3 years ago
Read 2 more answers
A parabola has its vertex at (2, 2), and the equation of its directrix is y = 2.5. The equation that represents the parabola is
LUCKY_DIMON [66]
We are given with the data of a parabola with vertex at (2, 2) and directrix at <span>y  = 2.5. the formua should be ax^2 + b x + c = y because of the directrix. 

(x-h)^2 = 4a (y-k)
(x-2)^2 =4a (y-2) 
a is the equidistant distance from focus to vertex and from vertex to directrix that is equal to -0.5
then the  answer is 
</span>(x-2)^2 =-0.5*4 (y-2) 
<span>x2 - 4x + 4 = -2y +4
x2-4x+2y = 0

answer is C

</span>
3 0
3 years ago
Our honda van gets about 20 miles per gallon. Our Toyota Prius gets about 42 miles per gallon. What percent increase is fuel eco
Olenka [21]
The percent increase between the to cars is 110%
4 0
3 years ago
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