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prisoha [69]
3 years ago
8

True or false. the sum of the intrtior angles of a quadrilateral equals 340 degrees

Mathematics
2 answers:
lara [203]3 years ago
6 0

False . The sum of the interior angles = 360°

A quadrilateral can be split into 2 triangles each with a sum of 180°

thus the sum of the interior angles of a quadrilateral = 2 × 180° = 360°



elena55 [62]3 years ago
3 0
1angle = 90
4 angles =360
the answer is false
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Marla has $4.55 in dimes and quarters. If she has 7 more quarters than dimes, how many quarters does she have?
Natalka [10]

Answer:

She have <u>15 quarters</u>.

Step-by-step explanation:

Given:

Marla has $4.55 in dimes and quarters.

Now, to find the quarters she have, if she has 7 more quarters than dimes.

Let the number of dimes be x.

And the number of quarters be 7+x.

As the value of dime = $0.10.

And the value of quarter = $0.25.

So, according to question:

⇒0.10x+0.25(7+x)=4.55

⇒0.10x+1.75+0.25x=4.55

⇒0.35x+1.75=4.55

<em>Subtracting both sides by 1.75 we get:</em>

⇒0.35x=2.8

<em>Dividing both sides by 0.35 we get:</em>

⇒x=8

Thus, the number of dimes = 8.

And the number of quarters = 7+x = 7+8 = 15.

Therefore, she have 15 quarters.

6 0
3 years ago
Sally can buy 3 pieces of candy for $1.20 or 5 pieces for $2.50, which has a better unit rate? Explain.
Julli [10]

Answer: The 3 pieces of candy- one candy under that costs only 40 cents. The five pieces separated cost 50 cents each

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Imagine a new pasture with grass growing on it. Every day after the seeds have germinated, the number of blades of grass in the
Arisa [49]

Answer:

It took 17 days for the pasture to be one-third covered in grass

Step-by-step explanation:

* Lets explain how to solve the problem

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∵ The number of blades of grass is triple every day

∴ The next day the number of blades of grass will be 3x

∴ The formula to find the number of blades of grass after d days is

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- After 18 days, the entire pasture is completely covered in grass

∵ d = 18

∴ The number of blades of grass = x(3)^{18}

- We need to know the the number of days that took for the pasture

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∵ The number of blades of grass for 1/3 covered = (\frac{1}{3})x(3)^{18}

∴ (\frac{1}{3})x(3)^{18}=x(3)^{d}

- Remember  \frac{1}{3}=3^{-1}

∴ 3^{-1}x(3)^{18}=x(3)^{d}

- Remember we add the power of the same bases when we

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∴ x(3)^{-1+18}=x(3)^{d} ⇒ divide both sides by x

∴ (3)^{17}=(3)^{d}

- Remember if the two bases equal in the equation, then their

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3 years ago
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kap26 [50]

Answer:

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If rectangular containers are used for all, then 143 are needed.

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c) How many cylindrical containers will be necessary to package 6,400 candles?

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d) Which container should the company use to minimize costs?

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If only one shape container is used, the company should use rectangular containers to minimize cost. If either shape can be used, cost will be minimized by using one cylindrical container for the remnant of the order.

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* This question is directed solely at the cost of materials required for packaging. We have advocated that both rectangular and cylindrical containers be made available. As a practical matter, the cost to the company of maintaining inventory of both sizes of containers may exceed the savings associated with using a cheaper container for smaller orders.

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Answer:

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Step-by-step explanation:

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2 years ago
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