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soldi70 [24.7K]
3 years ago
10

Jamie says the value of 1.43 × (− 18/35) is close to −0.75. Student A says this estimate is reasonable because the product is ne

gative and about half of 1.5. Student B says you could find the product using a calculator as follows: "Divide −18 by 35, multiply the quotient by 1.43, then round the product to the nearest hundredth." Does student B's approach to find the product justify the claim that Jamie's estimate is reasonable?
Mathematics
1 answer:
Wittaler [7]3 years ago
6 0

Answer:


Step-by-step explanation:

Yes, Student B's approach to find the product justifies the claim that Jamie"s estimate is reasonable.

The given equation is:

1.43{\times}(\frac{-18}{35})

Now, solving the above equation by dividing -18 by 35, we get

1.43{\times}(-0.5142)

Multiplying the quotient by 1.43, we get

-0.7354 which is nearly equal to -0.75. And also, if we divide 1.5 by 2, we get 0.75.

Thus, the estimate is reasonable.

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If you could show the work or an explanation
FinnZ [79.3K]

Answer:

0.35

Step-by-step explanation:

To find the mean you add all the numbers up and you divide that answer by how many numbers you have used to add.

5 0
3 years ago
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Jacques built a house that measured 75 feet long by 30 feet wide.
Sergio039 [100]
The area is 2250 square feet.
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3 years ago
Three times the sum of a number and five
Andreyy89

Answer:

Step-by-step explanation:

3(x+5)

if you want to solve it, it would be

3x+5

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3 years ago
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Bob,Cal,and Pete each made a stack of baseball cards.Bob's stack was 0.2 meter high.Cal's stack was 0.24 meter high.Pete's stack
AlekseyPX

Answer:

0.24 > 0.18

Step-by-step explanation:

Given that,

Bob's stack = 0.2m

Cal's stack = 0.24m

Pete's stack = 0.18m

To find?

A number sentence.

<em>A simple sentence is a string/collection of words that contain a subject and a verb whereas a number sentence is a sentence that consist of </em><em>mathematical operation</em><em> like +, -, /, * together with an equality such as =, <, >, and like a sentence it also tell a fact.</em>

<em> </em>So, the number sentence that compares cal's stack of cards to Pete's stack is

<h2>0.24 > 0.18</h2>

<em />

<em />

<em>  </em>

6 0
3 years ago
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Tina is saving to buy a notebook computer. She has two options. The first option is to put S200 away initially and save $10 ever
BigorU [14]
The equation for the first option is Y=10x + 200
The equation for the second option is Y=30x + 100

X = one month
To find when they would be the same about you have to set the equations equal to each other

10x + 200 = 30x + 100
-10x -100 -10x -100

100= 20x

5 = x

After five months she would save the same amount. To find how much is saved you have to plug in 5 for x in one of the equations. You can always double-check 5 by plugging it in both equations and making sure you get the same answer

Y= 10(5) + 200 = 250

Y= 30(5) + 100 = 250

She would have saved $250 after five months by using either method
6 0
3 years ago
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