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2 years ago

Help me I am stuck ❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❗️❕❗️

Mathematics

2 answers:

julsineya [31]2 years ago

6 0

Answer:

8. x=-5 and y=7

9. x=-2 and y=0

10. x=-6 and y=-10

11. x=8 and y=-4

12. x=9 and y=-9

13.x=4 and y=10

14. x=5 and y=-7

Step-by-step explanation:

Vikki [24]2 years ago

4 0

Answer:

8. x=-5 and y=7

9. x=-2 and y=0

10. x=-6 and y=-10

11. x=8 and y=-4

12. x=9 and y=-9

13.x=4 and y=10

14. x=5 and y=-7

Step-by-step explanation:

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A number is less than 15 translating inequalities

Illusion [34]

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According to the statement of the question, let X be any number. If this number X has to be less than 15, we can write:

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3 years ago

F (x) =2x -4; find f (-4)

NemiM [27]

Answer:

f(-4) = -12

Step-by-step explanation:

$f(x)=2x-4$

To calculate f(-4), we need to substitute x in our equation above with -4:

$f(x)=2x-4\\f(-4) = 2*(-4) - 4\\f(-4) = -8-4 = -12$

Note that 2*(-4) = -8

Answer: f(-4) = -12

6 0

3 years ago

Pls help asap

VMariaS [17]

Answer: Addition

Step-by-step explanation: You can represent that as 10^5*10^-5

If you add the exponent values, you get 10^0 which is equal to 1. If you multiply them, you get 10^-25 which is wrong.

3 0

2 years ago

Read 2 more answers

Estimate 61.68 - 48.225 by first rounding each number to the nearest whole number.

jarptica [38.1K]

Answer:

Step-by-step explanation:

61.68 = 62

48.225= 48

62-48= 14

4 0

3 years ago

Read 2 more answers

The difference between two numbers is 15. If 8 is added to twice the greater number, the result is 4 less than 3 times the lesse

yuradex [85]

Answer:

Step-by-step explanation:

Let $x$ be the greater number and $y$ be the smaller number. We know that their difference is 15, so we have

$x-y=15$

Then, we have the following information: if we add twice the greater (2x) and 8 (2x+8), the result is 3 times the lesser (3y) minus four (3y-4). So, we have

$2x+8 = 3y-4 \iff 2x-3y = -12$

So, we have the follwing system:

$\begin{cases} x-y=15\\2x-3y = -12\end{cases}$

From the first equation, we can derive $x = y+15$ , and substitute this expression in the second equation to get

$2(y+15)-3y = -12 \iff 2y + 30 -3y = -12 \iff -y = -42 \iff y = 42$

Substitute this value for y in the first equation to get

$x-42=15 \iff x=15+42 \iff x = 57$

8 0

3 years ago