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Lemur [1.5K]
3 years ago
15

Need help 10 POINTS !!!

Mathematics
2 answers:
kotegsom [21]3 years ago
6 0

Step-by-step explanation:

Use Pythagoras theorem to get line BD

BD = √7.5²+5² = 9cm

No idea for BC

docker41 [41]3 years ago
5 0
You need to use Sin to find the length of BC and the answer is 8.
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Mr. Scruggs got some money for his birthday. He spent 1/5 of it on dog treats. Then, he divided the remainder equally among his
Mariulka [41]

Answer:

a. \frac{4a}{15}

b. $225

Step-by-step explanation:

Let Mr. Scruggs got money for his birthday be 'a'

He spent \frac{1}{5} of it on dog treats = a × \frac{1}{5}

                                                                      = \frac{1}{5}a

remainder amount would be = a - \frac{1}{5}a

                                                = \frac{4a}{5}

Then he divided the remainder money equally among 3 favorite charities.

\frac{\frac{4a}{5}}{3}

= \frac{4a}{15}

a. Each charity receive \frac{4a}{15}

b. If he donated $60 to each charity.

\frac{4a}{15}=60

a=\frac{15\times 60}{4}

a = $225

Mr. Scruggs received $225 for his birthday.

6 0
3 years ago
What is 20-7x=6x<br><br> Please help
Naily [24]

Answer

mixed number form

1  7/13    

Exact form

20/13

Step-by-step explanation:

7 0
3 years ago
Mia paints interior walls at a rate of 12\dfrac{\text{m}^2}{\text{h}}12 h m 2 ​ 12, start fraction, m, start superscript, 2, end
Travka [436]

Answer:

2,000\ \frac{cm^{2}}{min}

Step-by-step explanation:

<u><em>The correct question is</em></u>

Mia paints interior walls at a rate of 12 m^2/h. At what rate does she paint in cm^2/min?

Remember that

1\ m=100\ cm

1\ h=60\ min

Convert m^2/h to cm^2/min

substitute the values

12\ \frac{m^{2}}{h}=12\frac{(100)^{2}}{60}=2,000\ \frac{cm^{2}}{min}

7 0
3 years ago
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