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Advocard [28]
3 years ago
14

Explain how to estimate the quotient using compatible numbers. 27 and two-thirds divided by 3 and StartFraction 9 over 10 EndFra

ction
Mathematics
2 answers:
Y_Kistochka [10]3 years ago
7 0

Answer:

The first fraction is between 27 and 28, closer to 28. The second fraction is between 3 and 4, closer to 4. Compatible numbers in division are numbers that can be divided mentally. 28 divided by 4 is 7. The quotient will be around 7.

djyliett [7]3 years ago
6 0

Answer:

The quotient will be around 7

Step-by-step explanation:

Compatible numbers in division, refers to numbers that can be divided mentally.

27 + 2/3 ÷ 3 + 9/10

27 + 0.67 ÷ 3 + 0.9

27.67 ÷ 3.9

Approximately

28 ÷ 4

=7

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RUDIKE [14]
11/4 or 2 3/4 =x is the answer
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3 years ago
What are vertices of the conic 16x² - 25y² = 400 ?
garri49 [273]

Answer:

(-5, 0) and (5, 0)

Step-by-step explanation:

This equation fits the form for a hyperbola with x-intercepts.  The standard form for such an equation is

\frac{x^2}{a^2}-\frac{y^2}{b^2}=1

To get the equation in the question into this standard form, divide each term by 400.

\frac{16x^2}{400}-\frac{25y^2}{400}=\frac{400}{400}\\\frac{x^2}{25}-\frac{y^2}{16}=1

To find the x-intercepts, make <em>y</em> = 0.

\frac{x^2}{25}=1\\x^2=25\\x=\pm 5

The vertices are located at the points (-5, 0) and (5, 0).

<em>Note: </em>There are no <em>y</em>-intercepts; making <em>x</em> = 0 produces no real solutions for <em>y</em>.

5 0
2 years ago
Evaluate each expression.<br> 8/7 + 4/7
Galina-37 [17]

Answer:

<u>1 4/7</u>

Step-by-step explanation:

8/7 + 4/7 = 12/7. Simplified = <u>1 4/7</u>

5 0
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lions [1.4K]

you would expect 99 duds in a box of 1430. 1430 divided by 130 is 11. therefore, multiply the amount of duds in the package of 130 times 11.


Hope this helps!!

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irina [24]

Step-by-step explanation:

x=102

I think it like this.

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