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AVprozaik [17]
3 years ago
6

Write a formula that converts x hours to y minutes

Mathematics
2 answers:
kykrilka [37]3 years ago
6 0
Formula:
y = 60x

1 hour = 60 minutes
Nikitich [7]3 years ago
4 0

Answer:

x\text{ hours}\cdot\frac{60\text{ minutes}}{\text{Hour}}=y\text{ minutes}

Step-by-step explanation:

We are asked to write a formula that converts x hours to y minutes.

We know that 1 hour equals 60 minutes.

\text{Number of hours}\cdot\frac{60\text{ minutes}}{\text{Hour}}=\text{Number of minutes}

Substitute the given values:

x\text{ hours}\cdot\frac{60\text{ minutes}}{\text{Hour}}=y\text{ minutes}

Therefore, the formula x\text{ hours}\cdot\frac{60\text{ minutes}}{\text{Hour}}=y\text{ minutes} can be used to convert x hours to y minutes.

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Graph the inequality;y>-5x+3
Evgesh-ka [11]
Start your dot on 3 on the y axis. Move is downwards on the y axis by 5 everytime you move over once on the x axis. Shade all the stuff above the line since it says y is greater than -5x+3
7 0
3 years ago
PLS HELP!!! The snowy tree cricket is sometimes called the temperature cricket because the frequency of its chirps varies based
trasher [3.6K]

Answer:

Step-by-step explanation:

62 degrees Fahrenheit

Step-by-step explanation:

The number of snowy tree cricket chirps per minute is 148 less than 4 times the outside temperature in degrees Fahrenheit.

Let x = number of chirps

f = temp in Fahrenheit

x =  4f -148

Now let x = 100

100 = 4f-148

Add 148 to each side

100+148 = 4f-148+148

248 = 4f

Divide each side by 4

248/4 = 4f/4

62=f

3 0
2 years ago
The Johnson twins were born eleven years after their older sister. This​ year, the product of the three​ siblings' ages is exact
vodka [1.7K]
So there are 3 siblings: the first twin, the second twin, and their older sister.

Since the sister is older by 11 years, you can represent their relationship with the following equation;
age of twin = age of older sister - 11
t = s - 11

Representing this next part may be a little hard to show, but i'll do my best :)

Adding the ages together can be represented like this;
total age = t + t + s
If the product of their ages ( t * t * s ) is 1181 more than the sum, you can show it like this:
t * t * s = (t + t + s) + 1181
Now you substitute in (s - 11) for t because s = t - 11.
t * t * s = (t + t + s) + 1181\\
(s-11) * (s-11) * s = ((s-11) + (s-11) + s) + 1181\\
(s^{2}-22x+121)*s=s+s-11-11+1181\\
s^{3}-22s^{2}+121s-2s=1159\\
s^{3}-22s^{2}+118s-1159=0
Factor:
Since it's a third-degree equation, I just entered it into a polynomial solver in my calculator. There was only one factor listed, x = 19. Using (s - 19) = 0 as a factor, the equation becomes the following:
s^{3}-22s^{2}+118s-1159=0\\
(s-19)(s^{2}-3s+61)=0
Using the quadratic formula, you get:
s= \frac{-b(+-)\sqrt{b^{2}-4ac}}{2a}\\
s= \frac{-(-3)(+-)\sqrt{(-3)^{2}-4(1)(61)}}{2*1}\\
s= \frac{3(+-)\sqrt{(9)-244}}{2}\\
s= \frac{3(+-)\sqrt{-235}}{2}

Since you have a square root of a negative number, the answer will be imaginary. You cannot have an age that is imaginary, so the age of the older sister (s) is 19 years.

Because t = s - 11, that means that t = (19) - 11 = 8.
t is the age of the twins, so the twins are 8 years old.
8 0
3 years ago
There was a sale for sweaters 40% of the actual price. Abby saved $20 for one sweater. What was the actual price?
Montano1993 [528]

Answer:

$50

Step-by-step explanation:

When finding sales price you multiply. But here we are finding the original price. So now you do the opposite, divison.

20/.4 = 50

3 0
2 years ago
112<br>Work out the sum of 2/6 and 1/6<br>Give your answer in its simplest form.​
natali 33 [55]
It’s 3/6 but you simplify it to 1/2

1/2 is ur answer :)
7 0
2 years ago
Read 2 more answers
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