Ask question

Ask question

All categories

3 years ago

13

Sam has a small paper delivery business. His parents require him to save $1 for every $5 he earns. If he made $200 this month ho

w much will he need to save?

1 answer:

olchik [2.2K]3 years ago

4 0

Answer:

$40

Step-by-step explanation:

$1 for $5

$? for $200

= 200*1/5

You might be interested in

Grandma baked 1.5 times as many pancakes as waffles. After she baked 45 more waffles, and her grandchildren ate 12 pancakes, the

Komok [63]

Step-by-step explanation:

let x represent the no of pancakes,

she baked 1.5 times pancakes more than waffles,

so from this, no of pancakes = 1.5x,

then she baked more 45 waffles,

no of waffles = (x +45)

so you had 1.5x pancakes and the children ate 12 out of them. the no of pancakes has then been reduced by 12.

thus, no of pancakes = ( 1.5x -12 )

now they see that they have 17 more waffles that pancakes left. this means that :

no of waffles - no of pancakes = 17

(x+45) - (1.5x - 12) = 17

x - 1.5x + 45 + 12 = 17

x = -50 / -0.5

x = 100

hence, there were 100 waffles initially.

hope you understand this,

-s.

4 0

3 years ago

Simplify completely x^2+7x-30/x+10

marta [7]

Answer:

(x-3)

Step-by-step explanation:

we have

$\frac{x^{2}+7x-30}{x+10}$

step 1

Simplify the numerator

Complete the square

Equate the equation to zero

$x^{2}+7x-30=0$

$x^{2}+7x=30$

$x^{2}+7x+3.5^{2}=30+3.5^{2}$

$x^{2}+7x+12.25=42.25$

Rewrite as perfect squares

$(x+3.5)^{2}=42.25$

Take square root both sides

$(x+3.5)=(+/-)6.5$

$x=-3.5(+/-)6.5$

$x=-3.5(+)6.5=3$

$x=-3.5(-)6.5=-10$

therefore

$x^{2}+7x-30=(x-3)(x+10)$

substitute in the numerator

$\frac{x^{2}+7x-30}{x+10}=\frac{(x-3)(x+10)}{x+10}=x-3$

8 0

4 years ago

A circular bicycle reflector has a diameter of 5 cm. What is the approximate area of the reflector? Use 3.14 to approximate pi a

grandymaker [24]

Answer:

Step-by-step explanation:

Area=pi×radius^2 so if diameter is 5 then radius is half that which is 2.5. So it should be a=3.14 × 2.5^2. I hope that's right.

7 0

4 years ago

How do you show whole number multiplication with the numbers 5/6x3

Westkost [7]

Whole numbers start from 0 so i am guessing that you can find the decimal for 5/6=0.833 and then multiply .

4 0

3 years ago

Read 2 more answers

Can you please help me answer questions 1-6 thank you

Veseljchak [2.6K]

3. Divide by 5
4. Add 12
5. Multiplying by -8
6.subtracting by -6

3 0

3 years ago

Read 2 more answers