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2 years ago

4

Stuart owns a window washing business. He can wash the windows on 9 houses in 4 hours. At this rate, how long would it take him

to wash the windows on 45 houses? How many houses could he wash in 12 hours?

1 answer:

pav-90 [236]2 years ago

4 0

Answer:

20 Hours = 45 Houses

27 = 12 Hours

Step-by-step explanation:

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Tina has 60 grams of popcorn. She wants to give all of her popcorn to her 4 friends. She says there are 2 ways that she can give

timurjin [86]

Answer:

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Step-by-step explanation:

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2 years ago

Triangle MNO is an equilateral triangle with sides measuring 16 StartRoot 3 EndRoot units. Triangle M N O is an equilateral tria

Lesechka [4]

Answer:

The correct option is second one i.e 24 units.

Therefore the height of the triangle is

$NR=24\ units$

Step-by-step explanation:

Given:

An equilateral triangle has all sides equal.

ΔMNO is an Equilateral Triangle with sides measuring,

$NM = MO = ON =16\sqrt{3}$

NR is perpendicular bisector to MO such that

$MR=RO=\dfrac{MO}{2}=\dfrac{16\sqrt{3}}{2}=8\sqrt{3}$ .NR ⊥ Bisector.

To Find:

Height of the triangle = NR = ?

Solution :

Now we have a right angled triangle NRM at ∠R =90°,

So by applying Pythagoras theorem we get

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

Substituting the values we get

$(MN)^{2} = (MR)^{2}+(NR)^{2}\\\\(16\sqrt{3})^{2}=(8\sqrt{3})^{2}+(NR)^{2}\\\\(NR)^{2}=768-192=576\\Square\ rooting\ we\ get\\NR=\sqrt{576}=24\ units$

Therefore the height of the triangle is

$NR=24\ units$

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2 years ago

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Anderson has $50 in his savings account. He deposits $5 every week. His father also deposits $20 into the account every time And

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Part A: 5 is the coefficient, w is the variable, 50 is the constant

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2 years ago

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Ahmad just put some money into a cd that pays 11.3% interest compounded semiannually according to the rule of 72 in approximatel

lilavasa [31]

The "rule of 72" says that the doubling time in years is approximately 72 divided by the interest rate in percent. To make the money grow by a factor of 4 requires that it double twice, so will take twice as long as the period to double once.
2×72/11.3 ≈ 12.7 . . . . years

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2 years ago