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3 years ago

Add pairs of adjacent numbers and write their sums in the box above them. What number is at the top of the pyramid?

Mathematics

1 answer:

sergejj [24]3 years ago

7 0

Answer: 62

Step-by-step explanation HI

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Help. i don’t understand. i need to graph this. graph the inequality

Harman [31]

I really hope this helps.

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3 years ago

What is the greatest common factor of 253 and 345?

dlinn [17]

Answer:

Step-by-step explanation:

To find the Greatest Common Factor, or GCF, we need to factor the first 2 numbers and then find the greatest number that is both present in the prime factorization of both numbers.

253 = 1 * 11 * 23

345 = 3 * 5 * 23

Since 23 is both present in both numbers and is the greatest, the GCF of 253 and 345 is 23.

4 0

2 years ago

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Each of 5 boys ate 2/3 of a pizza. What is the total amount of pizza the boys ate?

Scrat [10]

They ate 3 and 1/3 of pizzas.

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3 years ago

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What equation results when you cross - multiply 17/d = 51/21

nekit [7.7K]

Answer:

$51d=357\\\\d=\frac{357}{51} \\\\d=7$

Step-by-step explanation:

A proportion is an equation that defines that two ratios are equal. When the terms of a proportion are cross multiplied, the cross products are equal. Cross multiplication is the multiplication of the numerator of the first ratio by the denominator of the second ratio and the multiplication of the denominator of the first ratio by the numerator of the second ratio:

$\frac{a}{b} =\frac{c}{d} \rightarrow ad=bc$

Therefore:

$\frac{17}{d} =\frac{51}{21} \\\\17*21=d*51\\\\357=51d\\\\Solving\hspace{3} for\hspace{3} d\\\\d=\frac{357}{51} \\\\d=7$

6 0

3 years ago

1) $740 at 12% compounded monthly for 8 years

Vinil7 [7]

$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$740\\ r=rate\to 12\%\to \frac{12}{100}\dotfill &0.12\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &8 \end{cases} \\\\\\ A=740\left(1+\frac{0.12}{12}\right)^{12\cdot 8}\implies A=740(1.01)^{96}\implies A\approx 1923.46$

5 0

3 years ago