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3 years ago

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Mathematics

1 answer:

WINSTONCH [101]3 years ago

8 0

Answer:

$52.11

Step-by-step explanation:

6.35% = 0.0635

49+0.0635 = 52.115

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This is the last problem, Math was never my best subject ^^´´.<br> Please And Thank Youu!

Lady_Fox [76]

Answer:

15t +45 = 120
5 hours

Step-by-step explanation:

Let t represent the number of hours of lessons Audrey can take. Then 15t will be the cost of the lessons. Her total cost will be ...

15t +45 = 120 . . . an equation

15t = 75

t = 5

Audrey can afford 5 hours of lessons.

5 0

3 years ago

Read 2 more answers

Square root of 500 - square root if 180 + sqare root if 80

MA_775_DIABLO [31]

$\sqrt{500 } - \sqrt{180} + \sqrt{80}$
that is17.88

6 0

3 years ago

2x+9y=27<br> x-3y=-24 substitute

noname [10]

Answer:

x = 3(5)-24 = -9

{x,y} = {-9,5}

Step-by-step explanation:

3 0

4 years ago

A recipe for a cake instructs you to bake it at 220° C for 45 minutes. How many degrees Fahrenheit is this?

sergiy2304 [10]

This is an exercise on Thermometric scales.

We have as data:

T = 220 °C
T = °F ??

We apply the following formula:

$\large\displaystyle\text{$\begin{gathered}\sf ^{\circ}F=\frac{9}{5}\ ^{\circ}C+32 \end{gathered}$}$

We substitute data in the formula:

$\large\displaystyle\text{$\begin{gathered}\sf ^{\circ}F=\frac{9}{5}\times220+32 \end{gathered}$}$

First multiply 9 x 220, then the result of this division is divided by 5.

$\large\displaystyle\text{$\begin{gathered}\sf =396+32 \ \ \to \ \ [Add] \end{gathered}$}$

$\boxed{\large\displaystyle\text{$\begin{gathered}\sf =428 \ ^{\circ}F \end{gathered}$}}$

Therefore the cake recipe that should be baked at 220 °C for 45 minutes, on the Fahrenteir scale is 428 °F. Which indicates that it will be very hot.

3 0

2 years ago

Find the unknown angles

REY [17]

Answer:

x=62°

z=105°

y=24°

the reason are included in picture..

5 0

3 years ago