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Scilla [17]
3 years ago
13

Please show how 1200.00 is an estimate of 31×43?

Mathematics
1 answer:
Vika [28.1K]3 years ago
4 0
Ok so you round 31 to 30 and 43 to 40 and then you multiply 30 by 40 and get 1200. 1200 is the same thing as 1200.00 bc you can take off the zeros after the decimal and it will be the same. Hope this helped and if your still confused you let me know I'll try to explain it more.
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Morty spent $54 on tulips and roses and bought a total of 14 flowers. If tulips cost $5 and roses $3
Tom [10]

Answer:

a) Let's define the variables:

t = number of tulips bought

r = number of roses bought

We know that each tulip costs $5, and each rose costs $3.

Then the total cost will be:

$5*t + $3*r

We know that Morty spent a total of $54, then we have the equation:

$5*t + $3*r = $54

We also know that he bought a total of 14 flowers, then:

r + t = 14

Then the system of equations is:

$5*t + $3*r = $54

r + t = 14

b) To solve the system, first, we need to isolate one of the variables in one of the equations. I will isolate r in the second one:

r = 14 - t

Now we can replace this into the other equation:

$5*t + $3*r = $54

$5*t + $3*(14 - t) = $54

Now we can solve this for t.

$5*t + $3*14 - $3*t = $54

$2*t + $42 = $54

$2*t = $54 - $42 = $12

t = $12/$2 = 6

t = 6

He bought 6 tulips.

Now we can use the equation r = 14 - t

r = 14 - 6 = 8

r = 8

He bought 8 roses.

4 0
3 years ago
The price of 25 tickets is $2705 dollars. Find the price of 8 tickets​
mojhsa [17]

Answer:

Step-by-step explanation:

25 tickets = $2705

1 ticket = \frac{2705}{25}

            = $108.20

8 tickets= 108.20×8

             =$865.60

7 0
3 years ago
Read 2 more answers
The given graph represents the function f(x) = 2(5)*x
Sauron [17]

Answer:

f(x) = 2(5)*x

y=(2)(5)x

Y=10x

Step-by-step explanation: is this steps help you

6 0
3 years ago
Mercury
cestrela7 [59]
It’s the sizes I’m pretty sure
4 0
1 year ago
9. The regular price of an item at a store is p
Fittoniya [83]

Answer: C: Expression B and D

Step-by-step explanation:

Say the item is $100. 20% of 100 is equal to 100 (20/100)

When you simplify, it equals 20. So 20% of 100 is 20. This $20 is the amount of discount you receive.

So you have to subtract $20 from the $100 to find the sale price. The sale price is $80.

Now plug in 100 for p in each equation. The equation that equals 80 is the answer.

Only equation B and D equals 80 when 100 is plugged in.

8 0
3 years ago
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