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2 years ago

Can anyone Pleaseee tell me how to do this I’m a little confused?

Mathematics

1 answer:

Nadya [2.5K]2 years ago

6 0

Answer:

Step-by-step explanation:

They are both 25.

Why because in a 45, 45, 90 triangle the formula to find the three sides is a, a, a√2.

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The formula for electrical power (P, in watts) is where V is the voltage in volts and R is the resistance in ohms. For a particu

Firlakuza [10]

Answer:v=√(pr) 4volts

Step-by-step explanation:

v=√(pr)

v=√(32×0.5)

v=√(16)

v=4volts

4 0

3 years ago

I’m not sure how to do this

Cerrena [4.2K]

It's b because you have to round up

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2 years ago

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Ashanti wants to collect more than 50 food items for the local homeless shelter. If he has already collected 13, how many more i

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The answer is 37 you have to subtract

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3 years ago

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phyllis invested 66000 dollars, a portion earning simple interest rate of 5% per year and the rest earning a rate of 7% per year

Lelechka [254]

<u>Answer: </u>

Physliis invested 32000 dollar at 5% interest rate and 34000 dollar at 7% interest rate.

<u>Solution:</u>

Let Phyllis invest ‘x’ dollar at 5% per year and (66000-x) dollar at 7% per year.

We know,

$\text { Simple interest }=\frac{\text {Principal} \times r a t e \times T i m e}{100}$

In the question it is given that Simple interest earned from both the investments at the end of the year is $3980.

Using the given below equation, we will try to find out the investments at each rate.

$\begin{array}{l}{\frac{x \times 5 \times 1}{100}+\frac{(66000-x) \times 7 \times 1}{100}=3980} \\\\ {\frac{5 x}{100}+\frac{462000-7 x}{100}=3980} \\\\ {\frac{5 x+462000-7 x}{100}=3980} \\\\ {-2 \mathrm{x}+462000=3980 \times 100} \\\\ {-2 \mathrm{x}=398000-462000} \\\\ {-2 \mathrm{x}=-64000} \\\\ {\mathrm{x}=\frac{-64000}{-2}}\end{array}$

x = 32000

We can calculate amount for 7% interest rate by,

(66000-32000) =34000

Thus Phyllis invested 32000 dollar at 5% interest rate and 34000 dollar at 7% interest rate.

8 0

3 years ago

Six chicken nuggets have 204 calories. How many calories are in 9 chicken nuggets

professor190 [17]

Answer:

306 calories

Step-by-step explanation:

By looking at the problem, we can conclude the number of chicken nuggets and the calories are directly related, when the amount of chicken nuggets go up, the calories also go up, proportionally. Because of this, we can set up an equation:

6 / 204 = 9 / x

Where x is the amount of calories in 9 chicken nuggets.

Now, we can simplify by cross multiplying:

6x = 1836

x = 306 calories

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2 years ago

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