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Alexxandr [17]
3 years ago
9

Evaluate the expression 5(x + 3y) if x =2 and y = -1

Mathematics
2 answers:
Alenkasestr [34]3 years ago
4 0

Answer: 7

Step-by-step explanation:

torisob [31]3 years ago
3 0

Answer:

answer 7

Step-by-step explanation:

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Can someone please answer this!
Aleksandr [31]
Answer:
3x[2] + 5x +2
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(power)
3 0
4 years ago
Store A has a weekend sale. To the nearest hundredth of a percent, what discount must Store A offer for you to buy the system th
Ad libitum [116K]
We are given the cost of the product along with the markup percentage.  The markup is how the store makes a profit.  To figure out the markup price, simply multiply the "cost to store" by 100% plus the markup percent.

So the markup prices per store is:

A = 162 * 1.4 = $226.80
B = 155 * 1.3 = $201.50
C = 160 * 1.25 = $200.00

Clearly, the best deal is store C.  So in order to choose store A, we want to pay less than the price of Store C, $200.  So if Store A cost $199.99, then we would purchase there instead of Store C.

Therefore, $226.80 - $199.99 = $26.81
If Store A offered a discount of $26.81, we would purchase from Store A.

$26.81/$226.80 = 0.1182

So we would need a discount of 11.82% from Store A.

7 0
4 years ago
Rachel can buy 18 eggs for $1.49 or 12 eggs for $1.09. Which is the better buy?
Mnenie [13.5K]
<span>  1.09/12=0.091  18 eggs is a better buy</span>
3 0
4 years ago
Solve for x: x-9=<br> 0<br> A.x- -2<br> CB. = 2<br> C<br> C. X = 20
mars1129 [50]

Answer:

x = 9

Step-by-step explanation:

Well, let's solve it!

x - 9 = 0

Let's add 9 to both sides to isolate the variable and maintain equality.

We end up with :

x = 9 since -9 and 9 cancel out and 0 + 9 = 9.

5 0
4 years ago
Read 2 more answers
23 – 7x2 + 19x – 19 is divided by 3 – 3?<br> result in the form q(x) + baby
snow_tiger [21]

Answer:

=−7x2+19x+ 41/3

Step-by-step explanation:

5 0
4 years ago
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