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kvv77 [185]
2 years ago
11

It cost Allison $5.80 to send 58 text messages. How much would it cost to send 40 text messages?

Mathematics
1 answer:
Vitek1552 [10]2 years ago
3 0

Answer:

4$

Step-by-step explanation:
The ratio between the $5.80 spent for 58 text messages is $0.10. This means that each text message sent is $0.10. So you just multiply $0.10 and 40 text messages to find that it costs $4 to send 40 messages.

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lianna [129]
Pi/2 falls at 90 degrees on the unit circle, or 0,1. And since sin is the y value, sin (pi/2) = 1
8 0
3 years ago
The students are doing a fundraiser to help out a friend. They are selling chocolate and cookies for $3 and $2.50 respectively.
jarptica [38.1K]

Answer:

<em>At least 18 chocolates sold to collect $225</em>

Step-by-step explanation:

<em>~ Let's say x ⇒ the number of chocolates, y ⇒ the number of cookies ~</em>

1. We can see that the number of chocolates/ cookies * the cost of chocolates/cookies = the total cost of chocolates/cookies. Provided this, it would be that 3x and 2.5y would represent the cost of chocolates and cookies.

2. It is given that there was $225 sold from chocolates and cookies, so we can say that 3x + 2.5y = 225 from this assumption.

3. That being said it is also known that the cookies were sold to 60 people, so we can assume that 60 cookies were sold out, 1 were person. With this information we can see that 3x ⇒ 3 * 60 = <em>180 ⇒ cost of cookies sold</em>

4. Now we can substitute this value of 3x into the equation 3x + 2.5y = 225, as such: 3x + 2.5y = 225 ⇒ 180 + 2.5y = 225, <em>and now we can solve for y ~</em>

180 + 2.5y = 225,

2.5y = 225 - 180,

2.5y = 45,

y = 45/2.5,

y = <em>At least 18 chocolates sold to collect $225</em>

5 0
3 years ago
Find the number of gallons of sulferic acid in 50 gallons of solution in a tank, if the percent of sulfuric acid is 50%.
Leno4ka [110]

Answer:

25 gallons of sulfuric acid

Step-by-step explanation:

Find how much sulfuric acid is in the tank by finding 50% of 50 (the total gallons of solution):

50(0.5)

= 25

So, there are 25 gallons of sulfuric acid.

8 0
3 years ago
You have been asked to build a scale model of your school out of toothpicks. Imagine your school is 30 feet tall. Your scale is
Lostsunrise [7]
7.

Multiply 30 by 1.47 and that gets how many scale units you have. Then divide the scale by 6.3 and you’ll get 7.

Hope this helps!
6 0
4 years ago
HELP NEEDED QUICK<br><br> what is pqr to the nearest degree?
AleksAgata [21]

Answer:

your mom lol sooooooooooooooo

5 0
3 years ago
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