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3 years ago

10

A grandmother says her grandson is two years older than her granddaughter and that together, they are at least 12 years old. How

old are her grandson and granddaughter?

1 answer:

ivanzaharov [21]3 years ago

4 0

The grandson is at least 7 years old and the granddaughter is at least 5 years old.

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cable costs $50 for installation and $100 a month. satellite costs $200 for installation and $70 a month. what month will the co

sdas [7]

Answer: The cost will be the same on month 5.

Step-by-step explanation:

x = number of months

50 + 100(x) = $550

200 + 70(x) = $550

x = 5

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3 years ago

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How do you turn a percentage into a fraction?

enot [183]

Answer:

write the percent divided by 100

Step-by-step explanation:

1) write the percent divided by 100.

2) if the percent is not a whole number, multiply both top and bottom by 10 for every number after the decimal point.

3) reduce (simplify) the fraction.

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3 years ago

52. A 33-tt ladder leans against a building so that the angle between the ground and the ladder is 80". How high does the

Ulleksa [173]

9514 1404 393

Answer:

32.5 ft

Step-by-step explanation:

The length of the side opposite the given angle is found using the sine relation:

Sin = Opposite/Hypotenuse

height on building = (33 ft)·sin(80°) ≈ 32.5 ft

The ladder reaches about 32.5 feet up the side of the building.

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<em>Additional comment</em>

The maximum angle compliant with OSHA safety rules is 75.5°.

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3 years ago

7-2.3.10<br> Find the product<br> 11<br> 2°7

Leya [2.2K]

Answer:

Step-by-step explanation:

يميني بوثوق بوبو باق بنفي فندقه دلت

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4 years ago

A jar contains black beads and green beads. Forty percent of the beads in the jar are green. A number generator simulates random

eduard

Answer:

The number generator is not fair. In most of the experiments, considerably less than 40% of the selected are green

Step-by-step explanation:

Given

$Pr(Green) = 40\%$

See attachment for plots

Required

Is the number generator fair or not

From the number line, we have the following outcomes:

$0 \to 1$

$1 \to 1$

$2 \to 7$

$3 \to 2$

$8 \to 1$

Divide each outcome by 12, to get the proportion of green in each trial

$0 \to 1$ $\to 8.33\%$

$1 \to 1$ $\to 8.33\%$

$2 \to 7$ $\to 58.33\%$

$3 \to 2$ $\to 16.33\%$

$8 \to 1$ $\to 8.33\%$

The above shows that the proportion of green in most of the trial is less than 40%

<em>Hence, the number generator is not fair.</em>

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3 years ago

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