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RideAnS [48]
3 years ago
7

estimate the sum or difference. 4/5+3/7, round 4/5 to its closest benchmark. round 3/7 to its closest benchmark. add to find the

estimate.
Mathematics
1 answer:
Ann [662]3 years ago
7 0

Answer:

About 1.5

Step-by-step explanation:

We can round 4/5 to 1.

We can round 3/8 to 4/8 = 1/2.

So our estimate is

4/5 + 3/8 =

about 1 + 1/2 = 1.5

(Shh... let's check using the calculator... it's 1.2. We were pretty close!)

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Wait is this a anime? Can you tell what anime is please?
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Andre is in charge of cooking brócoli and zucchini for a large group he had to spend all 17$ he has and Cary 10 pounds of veggie
nataly862011 [7]

Answer:

This is an example of equation with two unknowns. Andre bought x pounds of zucchini and y pounds of broccoli and we also know that there was 10 pounds of veggies in total. So, we can write:

$1.5 • x + $2 • y = $17

x + y = 10

From the second equation we can say that:

y = 10 - x

We can now enter this value of y into the first equation:

1.5 • x + 2 • (10-x) = 17

1.5 • x + 20 - 2 • x = 17

1.5x - 2x = 17 - 20

-0.5x = -3

0.5x = 3

x = 6

If x=6, then y=10-6, which is 4.

That means that Andre bought 6 pounds of zucchini and 4 pounds of broccoli.

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4 years ago
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3 years ago
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The probability distribution for a
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Answer:

0.50

Step-by-step explanation:

X ___ - 5 ___ 3 __ - 2 __ 0 __ 12 __ 3

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3 years ago
The temperature at 6 pm was 0f. At 10 pm the temperature was -11.2f. Write an expression that you can use to find the average ch
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Answer:

Average change in temperature is - 2.8 Fahrenheit per hour.

Step-by-step explanation:

Average change in temperature is the change in temperature divided by the time taken for the change.

Change in temperature = (-11.2) F- 0 F

                                       = -11.2 F

Time taken for the change in temperature = 10 pm - 6 pm

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Average change in temperature = Change in temperature / time taken for the change

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                                                      = - 2.8 Fahrenheit per hour

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