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Lemur [1.5K]
3 years ago
12

Aubree makes $25 a week helping her mom with her siblings. She wants to buy a computer that cost $500. How many weeks will it ta

ke her to have enough money to buy the computer?
Mathematics
1 answer:
neonofarm [45]3 years ago
5 0

Answer:

20 weeks

Step-by-step explanation:

This question, luckily, can be solved with a very simple algebraic expression.

Let w = the amount of weeks.

25w = 500

So from here, we need to divide both sides by 25 to get w by itself: w = 20

Therefore, it will take Aubree 20 weeks to have enough money to buy the computer.

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A and B are independent events. P(A) = 0.40 and P(B) = 0.20. What is<br> PA and B)?
solmaris [256]

Answer:

The value of P( A and B ) is 0.08.

Step-by-step explanation:

When two events are independent then the probability of both occurring is equal to the product of probabilities of both events individually,

That is, If X and Y are independent events,

Then, P(X∩Y) = P(X) × P(Y),

or P(X and Y) = P(X) × P(Y),

Here, P(A) = 0.40 and P(B) = 0.20,

Hence, P(A∩B) = P(A) × P(B)

= 0.40 × 0.20

= 0.08

6 0
3 years ago
Ecuación:
KIM [24]
Queremos tener todos los variables del mismo typo en un lado así que vamos a mover la -x a la izquierda, y el 15 a la derecha.
15 + 3x = 21 - x
+x +x
————————
15 + 4x = 21
-15 -15
———————
4x = 6
— —
4 4
X = 1.5 para ver si es correcto puedes tratar de poner 1.5 en lugar de la x y te saldrá una ecuación correcta :), déjame saber si tienes preguntas espero que eso hizo sentido.
6 0
3 years ago
Drag each description to the correct location on the table.
77julia77 [94]
Is there supposed to be a table somewhere here?
7 0
3 years ago
Read 2 more answers
A small box of raspberries costs $2. a large box of raspberries costs $6.the large box costs ? times as much as the small box
lora16 [44]
it costs 3 times as much and 6/2= 3
3 0
3 years ago
The average mass of an ant is approximately 3 × 10 − 3 grams. The average mass of a giraffe is approximately 2 × 10 3 kilograms.
Vika [28.1K]

Given that average mass of an ant = 3 \times 10^{-3}grams.

Given that average mass of a giraffe = 2 \times 10^{3} Kilograms.

Now we have to find about how many times more mass does a giraffe have than an ant. Before carring out any comparision, we must make both units equal.

Like convert kilogram into gram or gram into kilogram.

I'm going to convert kilogram into gram using formula

1 Kg = 1000 g


So the average mass of a giraffe = 2 \times 10^{3} *10^3 grams.


Now we just need to divide mass of giraffe by mass of ant to find the answer.

\frac{2 \times 10^{3} *10^3 }{3 \times 10^{-3} }

= \frac{2 \times 10^{3} *10^3 *10^{3}}{3  }

= \frac{2 \times 10^{3+3+3}}{3  }

= \frac{2 \times 10^9}{3  }

= \frac{2}{3  } \times 10^9

=666666666.667

Hence final answer is \frac{2}{3  } \times 10^9 which is approx 666666666.667.

3 0
3 years ago
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