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3 years ago

Emma has twelve 2 1/2 inch building blocks. If they were stacked one on top of another, how tall would the stack be ?

Mathematics

2 answers:

love history [14]3 years ago

6 0

Answer:

30 inches

Step-by-step explanation:

you multiply the 2 1/2 cubes by the amount(12) which gets you 30 inches or 2 1/2 feet

Marat540 [252]3 years ago

5 0

Answer:

30-inches

Step-By-Step-Explanation

2 1/2 * 12= 30

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What is the value of k?

yawa3891 [41]

Answer:

Step-by-step explanation:

The vertex is (d, e)

for quadratic function: f(x) = ax² + bx + c we have:

d = -b/a and d = (x₁ + x₂)/2

a = 1, b = k, x₁ = -4, x₂=-2

so:

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4 years ago

What is the ratio of 7/8

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Step-by-step explanation:

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3 years ago

1 Subtracting Fractions

antoniya [11.8K]

Step-by-step explanation:

The question is not properly structured but we can as well find the sum of 5/7 and 10 as shown;

$\frac{5}{7}+ \frac{10}{1} \\The \ LCM \ is \ 7\\\\= \frac{5(1)+10(7)}{7}\\\\= \frac{5+70}{7}\\\\= \frac{75}{7} \\\\= 10 \frac{5}{7}$

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3 years ago

A lake was closed because of an accidental pesticide spill. The concentration of the pesticide after the spill was 848 parts per

DochEvi [55]

Answer:

Step-by-step explanation:

$a_{n}=a_{1}r^{n-1}\\0=848(0.75)^{n-1}\\or~(0.75)^{n-1}=0\\0.75$

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Hence lake will never be free of pesticide.

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3 years ago

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A football stadium holds 17,700 seats. The lower level has 300 seats less than 4 times the number of seats in the upper level. T

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Answer:

6x + 200 = 17,000

Step-by-step explanation:

Lower level = 4x - 300

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Combine like terms

4x × 2x + 500 - 300 = 17,000

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2 years ago

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