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3 years ago

What does 280 become when you add 25% to it?

Mathematics

2 answers:

Basile [38]3 years ago

8 0

Answer: 350

Step-by-step explanation:

25 percent of 280 is 70 so it is 350

sergeinik [125]3 years ago

7 0

Answer: 350

Step-by-step explanation:

You multiply it by the percent but you'll add 1 to it so it'll look like this

280 x 1.25 = 350

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NO LINKS!! Use the method of substitution to solve the system. (If there's no solution, enter no solution). Part 11z

Roman55 [17]

Answer:

$(x,y)=\left(\; \boxed{-1,-8} \; \right)\quad \textsf{(smaller $x$-value)}$

$(x,y)=\left(\; \boxed{5,16} \; \right)\quad \textsf{(larger $x$-value)}$

Step-by-step explanation:

Given system of equations:

$\begin{cases}y=x^2-9\\y=4x-4\end{cases}$

To solve by the method of substitution, substitute the first equation into the second equation and rearrange so that the equation equals zero:

$\begin{aligned}x^2-9&=4x-4\\x^2-4x-9&=-4\\x^2-4x-5&=0\end{aligned}$

Factor the quadratic:

$\begin{aligned}x^2-4x-5&=0\\x^2-5x+x-5&=0\\x(x-5)+1(x-5)&=0\\(x+1)(x-5)&=0\end{aligned}$

Apply the <u>zero-product property</u> and solve for x:

$\implies x+1=0 \implies x=-1$

$\implies x-5=0 \implies x=5$

Substitute the found values of x into the <u>second equation</u> and solve for y:

$\begin{aligned}x=-1 \implies y&=4(-1)-4\\y&=-4-4\\y&=-8\end{aligned}$

$\begin{aligned}x=5 \implies y&=4(5)-4\\y&=20-4\\y&=16\end{aligned}$

Therefore, the solutions are:

$(x,y)=\left(\; \boxed{-1,-8} \; \right)\quad \textsf{(smaller $x$-value)}$

$(x,y)=\left(\; \boxed{5,16} \; \right)\quad \textsf{(larger $x$-value)}$

6 0

11 months ago

Read 2 more answers

Gina can trade empty bottles for money at the grocery store. She returned a few bottles worth $0.10 each and 6 bottles worth $0.

Irina18 [472]

Answer:

5 bottles

Step-by-step explanation:

a total of $0.80 was paid

6 $0.05 bottles were returned= $0.05×6= $0.30

remainder= $0.80-$0.30= $0.50

amount of $0.10 bottles returned= $0.50÷$0.10= 5

3 0

2 years ago

What is the product of 3/5 x 4/9 written in simplest form?

frosja888 [35]

Mmm... I think it is 5/8... I think.

3 0

2 years ago

Read 2 more answers

Shipping rates for Company A and Company B are shown in the tables below. Which company has shipping rates that you can represen

Vikentia [17]

Answer:

OMG I KNOW THE ANSWER!!!!!!!!

Step-by-step explanation:

its b.

5 0

2 years ago

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The French Club ordered 16 pizzas for a party. Each pizza had 6 slices. Jose ate 7 of the slices. How many slices were left for

NikAS [45]

16 x 6 = 96
96 - 7 = 89
or
14 pizzas and 5 slices

Answer : 89 slices

4 0

2 years ago