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Julli [10]
3 years ago
15

12x+y=−4 y=2x+16 im really confused on how to do this, i need to find the solution

Mathematics
2 answers:
ololo11 [35]3 years ago
5 0

Answer:

here

Step-by-step explanation:

g100num [7]3 years ago
5 0

Answer:

(x, y) = (-10/7, 92/7)

Step-by-step explanation:

12x + y = -4

y = 2x +16.

Substituting the value of y ( second equation ) into the first equation, we get:

12x + (2x + 16) = -4

14x + 16 = -4

14x = -20

x = -20/14 = -10/7.

Now, to find y, all we have to do is to substitute the value of x into the second eqation. We get:

y = 2 * (-10/7) + 16

y = -20/7 + 16

y = 92/7

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A new club sent out 288 coupons to boost sales for next year's memberships. They provided 5 times as many to potential members t
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Answer:

D. 48

Step-by-step explanation:

We don't know the numbers of coupons sent to existing members and to potential members, but we know a relationship between the number.

They sent 5 times as many coupons to potential members as they did to existing members.

Let x = number of coupons sent to existing members.

Then 5x = number of coupons sent to potential members.

The total number of coupons sent was x + 5x = 6x

The total number of coupons sent was 288.

Therefore, 6x must equal 288 giving us an equation with a single variable.

6x = 288

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Answer: 48

7 0
3 years ago
If you select a card at random, what is the probability of getting:A number smaller than 5 (counting the ace as a 1)?
garri49 [273]

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4 0
3 years ago
Need help with a math question
Margaret [11]

Answer:

90 sq inches

Step-by-step explanation:

The lateral area is the side area of the pyramid. In this case, there are 3 sides because the base is a triangle.  Since the base is an equilateral triangle, all sides are of equal dimensions.  So, the sides of the pyramid are also all of the same size, area.

We then just have to figure out the area of one of the side triangles, then multiply it by 3 to get the total lateral area of that pyramid.

We know how to calculate the area of a triangle: A = (b * h)/2

In this case, b = 5 in, h = 12 in. So,

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Each side triangle has an area of 30 sq inches.

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LA = 3 * 30 = 90 sq inches

8 0
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Answer:

(4,6)

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