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lara31 [8.8K]
3 years ago
6

Juan charges $3.50 per hour for babysitting. Write a rule to describe the amount of money (M) earned is a function of the number

of hours (h) spent baby-sitting. HELP PLEASE
Mathematics
1 answer:
ratelena [41]3 years ago
6 0
M(earned money)=h(worked hours)*$3.50
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Plzz help Solve for x x ÷3 3/10 =2 2/5
Svet_ta [14]

Answer:

\huge\boxed{x=7\dfrac{23}{25}}

Step-by-step explanation:

x\div3\dfrac{3}{10}=2\dfrac{2}{5}\\\\\text{convert the mixed number to the impropper fraction}\\\\3\dfrac{3}{10}=\dfrac{3\cdot10+3}{10}=\dfrac{33}{10}\\\\2\dfrac{2}{5}=\dfrac{2\cdot5+2}{5}=\dfrac{12}{5}\\\\x\div\dfrac{33}{10}=\dfrac{12}{5}\\\\x\times\dfrac{10}{33}=\dfrac{12}{5}\qquad\text{multiply both sides by}\ \dfrac{33}{10}\\\\x\times\dfrac{10\!\!\!\!\!\diagup}{33\!\!\!\!\!\diagup}\times\dfrac{33\!\!\!\!\!\diagup}{10\!\!\!\!\!\diagup}=\dfrac{12}{5}\times\dfrac{33}{10}\\\\x=\dfrac{396}{50}

x=\dfrac{198}{25}\\\\x=\dfrac{175+23}{25}\\\\x=\dfrac{175}{25}+\dfrac{23}{25}\\\\x=7\dfrac{23}{25}

3 0
3 years ago
Karmen returned a bicycle to Earl's Bike Shop. The sales receipt showed a total paid price of $211.86, including the 7% sales ta
MakcuM [25]

Answer:

$198

Step-by-step explanation:

198x.07=13.86

198+13.86=211.86

7 0
3 years ago
Identify the number of solutions or zeros<br><br> 2x^2+5x-9=0
Anon25 [30]
There are going to be two solutions because the "biggest" x is x^2 but you can factor to find what they actually are.

6 0
3 years ago
How do I find the vertex and the standard form? Plz explain
xenn [34]

Answer:

Vertex form

y = -4(x + 3)^2 + 10

Standard form;

y = -4x^2-24x - 26

Step-by-step explanation:

Mathematically, we have the vertex form as

y = a(x-h)^2 + k

(h,k) represents the vertex

We have h as -3 and k as 10

y = a(x+3)^2 + 10

To get a, we substitute any of the points

Let us use (-1,-6)

-6 = a(-1+3)^2 + 10

-6-10 = 4a

4a = -16

a = -16/4

a = -4

So we have the equation as;

y = -4(x+3)^2 + 10

For the standard form;

We expand the vertex form;

y = -4(x + 3)(x + 3) + 10

y = -4(x^2 + 6x + 9) + 10

y = -4x^2 - 24x -36 + 10

y = -4x^2 -24x -26

7 0
2 years ago
What is the perimeter of this pentagon?
exis [7]

Answer:

the perimeter of the Pentagon is 2.75cm

Step-by-step explanation:

add each side together in decimal form

8 0
2 years ago
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