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3 years ago

When you add two numbers with the same sign, what sign do you use for the sum?

Mathematics

2 answers:

KiRa [710]3 years ago

7 0

Answer:

The answer is opposite

Step-by-step explanation:

Not needed.

Dafna11 [192]3 years ago

3 0

You keep the same sign. So:-

4 + 4 = 8 and

--4 + -4 = -8

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It costs $50.00 to deliver 6 floral arrangements. It costs $80.00 to deliver 12 floral arrangements. What is the constant rate o

german

The constant rate for 1 floral arrangement is $5.00 and inital value is $20.00

Equation: f(z)=20+5z

Step-by-step explanation:

Given,

Delivery cost of 6 floral arrangements = $50.00

Delivery cost of 12 floral arrangements = $80.00

Let,

x be the constant rate for each floral arrangement.

y be the initial value.

According to given statement;

6x+y=50.00 Eqn 1

12x+y=80.00 Eqn 2

Subtracting Eqn 2 from Eqn 1

$(12x+y)-(6x+y)=80.00-50.00\\12x+y-6x-y=30.00\\6x=30.00$

Dividing both sides by 6

$\frac{6x}{6}=\frac{30.00}{6}\\x=5.00$

Putting in Eqn 1;

$6(5.00)+y=50.00\\30.00+y=50.00\\y=50.00-30.00\\y=20.00$

The constant rate for 1 floral arrangement is $5.00 and inital value is $20.00

Equation for the function;

Let z be the number of floral arrangements.

f(z) = initial fee + 5*Number of floral arrangements

f(z) = 20+5z

Keywords: function, subtraction

Learn more about functions at:

#LearnwithBrainly

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4 years ago

Is the pattern 2,3,5,8,12 arithmetic explain

stira [4]

No becvause the numbers dont increase by a constant amount

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4 years ago

The first step in simplifying a rational expression is to ____ it's numerator and denominator.

SSSSS [86.1K]

Answer:The answer is C i.e. Factor

Step-by-step explanation:

A rational expression is an expression containing fractions in which both numerator and denominator are polynomials

So to simplify a rational expression we have to make the factor of it

For example: $\frac{x^2-9}{x^3-27}$

When we simplify it

we make factors of $x^2-9$ and $x^3-27$

= $\frac{(x+3)(x-3)}{(x-3)(x^2+9+3x)}$

= $\frac{x+3}{x^2+9+3x}$

which is a simplified expression

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3 years ago

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To solve a problem, we often _________ the given information into algebraic expressions and equations.

bulgar [2K]

$\frac{-b\pm\sqrt{b^2-4ac}}{4a}$

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4 years ago

Alden's fish tank has 28 fish. There are 11 goldfish in the tank and the rest of the fish are tetras. Which ratio represents the

Georgia [21]

Answer: 11:17

Step-by-step explanation:

Number of fishes= 28

Goldfish= 11

Tetras= 28-11 = 17

Ratio of goldfish to tetras will be 11:17

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3 years ago

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