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3 years ago

At a video arcade, the action video games this week cost $25, which is 125% of last week's price. What was its price last week?

1 answer:

8 0

First you can write it as 1.25 which it is the decimal version of the percent. Then write the 1.25x = 25. After divide both sides by 1.25. Ta da, You have your answer (which is 20).

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Express tan D as a fraction in simplest terms. 40 B 24 32 C

Dahasolnce [82]

Answer:

$\sf Tan \ D = \dfrac{4}{3}$

Step-by-step explanation:

Trigonometry ratios:

$\sf \boxed{\bf \tan \ D =\dfrac{opposite \ side \ of \ \angle \ D}{adjacent \ side \ of \ \angle D}}$

$\sf =\dfrac{BC}{DC}\\\\ =\dfrac{32}{24}\\\\=\dfrac{4}{3}$

7 0

2 years ago

Can you guys help me?

kumpel [21]

Answer:

Step-by-step explanation:

1. y = 2x

y = 2*4 = 8 Checks, therefore

y = 20 for x = 10

2. y = 3x

y = 3*(0.3) = 0.9 Checks, therefore:

y = 3*(1.5) = 4.5

y = 3*

3. y = 5/x

y = 5/(1/2) = 10 Checks, therefore:

3 = 5/x

x = 5/3

4 v = wu

7*3 = 21 Checks, therefore:

v = (3/4)*(6) = (18/4) = (9/2)

v = (2/3)wu

v = (2/3)*7*3 = 14 Checks

5 m = Kn/p [Add the K as a constant that will make m = Knp true at some value of K]

9 = K*2/(1/3)

27 = (K*2)

27 = 2K

K = (3/2)

m = (3/2) (n/p)

m = (3/2)*((1/2)/(1/3))

m = (3/2)*(3/2)

m = 1

7 0

3 years ago

I’ll give brainliest to the right answer plz help

BigorU [14]

9514 1404 393

Answer:

water

Step-by-step explanation:

Comparison of numbers can be done a couple of different ways. One way is to subtract one from the other. If the difference is positive, the minuend (first number) is the larger of the two.

Another way is to divide one number by the other. If the ratio is more than 1, then the numerator is the larger number.

For numbers in scientific notation, the division is perhaps the easiest. Here, that gives you ...

$\displaystyle\frac{\text{water mass}}{\text{oxygen mass}}=\frac{2.99\times10^{-26}\text{ kg}}{2.66\times10^{-26}\text{ kg}}=\frac{2.99}{2.66}\approx 1.12$