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Burka [1]
3 years ago
14

School health records show that 70% of the

Mathematics
2 answers:
Lena [83]3 years ago
6 0

Answer:

245

Step-by-step explanation:

.7* 350 =  245

Branilest?

almond37 [142]3 years ago
3 0

Answer:

245 children

Step-by-step explanation:

350÷100=3.5

3.5×70=245

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How is multiplication using partial products different from multiplication using regrouping?
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Partial products is breaking down every number in multiplication and adding them. Regrouping is grouping number them adding them.They are alike because they both involve breaking down the numbers and adding them.  They are different because one is taking all the numbers broken down, while the other is just a couple of the number.
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Describe two situations in which opposite quantities combine to make zero
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When one number is negative and the other is positive. 
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A submarine sits at -300 meters in relation to sea level. Then it descends 115 meters. What is it’s new position in relation to
Anna71 [15]

Answer:

A. -415m

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-300 meters is the starting point.

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3 years ago
1000 is 1/10 of what number?
Gekata [30.6K]

Answer:

10,000

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3 years ago
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Solve the equation by completing the square.Round to the nearest hundredth if necessary. X^2–x–7=0
lesya [120]
NOTE:  \left(x-\dfrac{1}{2}\right)^2=x^2-x+\dfrac{1}{4}

x^2-x-7=0 \\ \\ \underbrace{x^2-x+\frac{1}{4}}_{\left(x-\frac{1}{2}\right)^2}-7\dfrac{1}{4}=0 \\ \\  \\ \left(x-\frac{1}{2}\right)^2=7\frac{1}{4}=\frac{29}{4} \qquad /\sqrt{}\\ \\  \left|x-\frac{1}{2}\right|=\dfrac{\sqrt{29}}{2} \\ \\  x_1=\dfrac{1}{2}-\dfrac{\sqrt{29}}{2} \approx  -2.19 \\ \\ x_2=\dfrac{1}{2}+\dfrac{\sqrt{29}}{2} \approx 3.19

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