3 years ago

For every pound a company spends on advertising, it spends 43 pence on its website. Express

Mathematics

2 answers:

son4ous [18]3 years ago

8 0

Answer:

43:100

Step-by-step explanation:

this is the simplest form

Valentin [98]3 years ago

3 0

Answer:

The answer is 100:43

Step-by-step explanation:

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You borrow $500 to buy a computer. The simple interest rate is 15%. You pay off the loan after 4 years. How much do you pay for

GREYUIT [131]

Its $800 because to find interest u can use the formula I=PRT p is principal which is 500 times r which is rate-15/100(=15%) times 4

so the interest is 500×15/100×4=300
then u add 300 to 500 because the interest adds more money to the loan

4 0

3 years ago

A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.

IgorC [24]

Answer:

a = 2

Step-by-step explanation:

Let's find the equation of the line using the 2 points given.

Let's call -1 as x_1 and -5 as y_1

also, 4 as x_2 and 5 as y_2

The equation of line is :

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

<em>Let's plug the points and get the equation of the line:</em>

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y+5=\frac{5+5}{4+1}(x+1)\\y+5=2(x+1)\\y+5=2x+2\\y=2x-3$

Now, to find a, we substitute a in x and 1 in y of the equation of the line we just got:

$y=2x-3\\1=2(a)-3\\1=2a-3\\2a=4\\a=\frac{4}{2}=2$

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3 years ago

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Find f(x) if it is known that f(x−2)=2x−4.

tigry1 [53]

F(x) = 2x
___________

3 0

3 years ago

Bru how i do these 2 ?

Stells [14]

Use the pythagoream theorem A^2+B^2 then square your answer a being your adjacent side and b being your opposite leg.

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2 years ago

Megan earns $20.00 by walking dogs. She uses all of her earnings to buy a shirt for $12.85 and some stickers for $0.65 each. How

Leya [2.2K]

The answer is B: 11.

To solve it, you need to solve the equation: 20.00=12.85+0.65x

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3 years ago