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3 years ago

Find the sum -12+-5=

Mathematics

1 answer:

Evgen [1.6K]3 years ago

8 0

-12+-5=-17

hope it helps

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the sum of Ages of two brother is 18the elder brother is 10 years older than younger brother then what are the ages of those bro

NemiM [27]

Answer:

Age of younger brother is 4 years..

And age if elder brother is 14 years.

Step-by-step explanation:

Let us denote 'x' as the age of smaller brother,

then, the age of younger brother will be x+10 years.

x+x+10 = 18

2x+10 = 18

2x = 18-10

2x = 8

x = 8/2

x = 4

Age of younger brother is 4 years.

Age of elder brother = x + 10

= 4 + 10

= 14 years.

4 0

2 years ago

Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends a

Elis [28]

Answer:

Equation: 3x + 2 = 50

# of friends: 16

Step-by-step explanation:

3 chocolates each or 3x because what "each" means is not known yet-

<em>Note: Always use x for an unknown value</em>

2 remaining chocolates-

3x + 2

50 total chocolates-

3x + 2 = 50

Remove two to keep the x alone-

3x = 48

Remove the 3 or the "Coefficient" by dividing-

48/3 = 16

x = 16

Equation: 3x + 2 = 50

# of friends: 16

8 0

2 years ago

In a certain year, about 11/5000 of a country’s population were female nursing home residents and about 7/5000 of a country’s po

Goshia [24]

Answer:

18/5000 or 9/2500

Step-by-step explanation:

Since we know both male and female nursing home residents, we can just add the two together to find the total.

8 0

2 years ago

Which represents the solution(s) of the graphed system of equations, y = x2 + x – 2 and y = 2x – 2? (–2, 0) and (0, 1) (0, –2) a

Luda [366]

ANSWER

$(0,-2), (1,0)$

EXPLANATION

The first equation is

$y = {x}^{2} + x - 2$

The second equation is

$y = 2x - 2$

We equate both equations to get,

${x}^{2} + x - 2 = 2x - 2$

${x}^{2} + x - 2x - 2 + 2 = 0$

Simplify

${x}^{2} - x = 0$

Factor

$x(x - 1) = 0$

Either

$x = 0$

$x - 1 = 0$

$x = 1$

Put x=0 or x=1 into the second equation to get,

$y = 2(0) - 2 = - 2$

$y = 2(1) - 2 = 0$

Therefore the solutions are;

$(0,-2), (1,0)$

3 0

2 years ago

Read 2 more answers

Solve the equation and enter the value of x below.<br> x+ (9) = -15<br> X=

Wittaler [7]

Answer:

x=-24 is the correct answer

3 0

2 years ago