MATHEMATICS MIDDLE SCHOOL

Write and solve a real world problem that can be represented by the expression (-3)(5)+10

Answers

Answer 1
Answer: i have rows of cookies, with 5 cookies in each row. i have to give 3 rows away, but after i do that then my friend gives me 10 cookies from their bag, what is the change in the total number of cookies i have.

this gets you the -3(5) and then + 10 which -3(5)+10 = -5

I lost 5 cookies
Answer 2
Answer:

Problem:

The initial temperature of a room is equal to 10 degrees Celsius. The temperature of the room decreases by 3 degrees per day. Find the temperature of the room in 5 days.

Solution:

The temperature of the room in five days is given by the expression:

Resolving the expression we have:

Therefore, the temperature of the room for day number 5 is equal to -5 degrees Celsius.

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Need help on this problem

Help! A:The base is 4 units and the height is 9 units
B:The base is 5 units and the height is 7 units
C:The base is 5 units and the height is 9 units
D:The base is 9 units and the height is 3 units.

Answers

C because the base id the bottom which is 5 ( count the boxes at the bottom ) and the height is 9 is the side the long side

Final answer:

To find the area of a rectangle you need to multiply the base and the height of the rectangle. In this case, for A it's 36 square units, for B it's 35 square units, for C it's 45 square units and for D it's 27 square units.

Explanation:

The question is asking to find the area of a rectangle for four different measurements. In Mathematics, the area of a rectangle is calculated by multiplying the base and the height. So for A the area is 4 units * 9 units = 36 square units, for B the area is 5 units * 7 units = 35 square units, for C the area is 5 units * 9 units = 45 square units, and for D the area is 9 units * 3 units = 27 square units.

Learn more about Area of a Rectangle here:

brainly.com/question/8663941

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When do you need to use two number lines to compare two fractions

Answers

You would use 2 number lines to compare fractions because if you were trying to see which fraction was larger than you would use a number line.
To see which one is bigger when comparing it

ashton is saving money to buy a new bike.he needs $120 but has only saved 60% so far how much money does ashton need to buy the scooter?

Answers

Answer:

Ashton needs $48 to buy the bike

Step-by-step explanation:

The cost of the bike is $120. In this moment Ashton has saved 60 % to convert it to money we have to multiply the cost of the bike and the percentage saved and divide it by 100 % to eliminate the percentage units.

(120 * 60)/(100)= 72

So in this moment Ahston has save $72 for the bike. Now, we just have to substract the total cost of the bike and the saved money.

120 - 72 = 48

Ashton needs $48 to buy the bike
120 x .60 =72


or in fraction form it would be  120/1 x 60/100 = 7200/100 which simplifies to 72.

So the answer would be 120- 72 = $48

Is -2 + 4y +2=8x a direct variation equation

Answers

Direct variation

Explanation:

Given –2 + 4y + 2 = 8x.

To find the given expression –2 + 4y + 2 = 8x is direct variation or not.

If y varies directly as x, then y = kx.

If y varies inversely as x, then y=(k)/(x)

⇒ –2 + 4y + 2 = 8x

Combine like terms together.

⇒ –2 + 2 + 4y = 8x

⇒ 4y = 8x

Divide both sides of the equation by 4, we get

⇒ y = 2x

Which is in the format of y = kx.

Thus y varies directly as x.

Hence, –2 + 4y + 2 = 8x is direct variation.

a rectangular tank is filled with water from a tap which flows into the tank at 6.5 litre per minute . How long will it take to fill up 2/3 of the tank ?

Answers

If the tank is the size of a swimming pool, then it will take longer than an aquarium. The dimensions of the tank are important to know.

There are 3392 people a month how many people are there in Surat

Answers


Using the information given in the question, there's no way to
calculate the answer.  The only thing we can say for sure is that
it's not more than 3,392 a month .. IF that statistic refers to Surat.
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