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nekit [7.7K]
3 years ago
15

Help me plz I don't understand this

Mathematics
2 answers:
neonofarm [45]3 years ago
7 0

Answer:

D. \frac{10}{15} and \frac{14}{21}

Step-by-step explanation:

Proportional ratios are ratios that represent the same relationship. One way to check this is to reduce the ratios, because if they are proportional, they will equal the same thing. Both \frac{10}{15} and \frac{14}{21} simplify to \frac{2}{3}.

Hope this helps!!

aliina [53]3 years ago
5 0

Answer:

its D

Step-by-step explanation:

if you divide 10/15 its .666 and if you divide 14/21 its .666 so there equal  BRAINLEIST????

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A=1/2h(B+b); A=45, B=4, b=5
klemol [59]
Answer: h=10

Solving Steps:
45 = 1/2h x (4+5)
45 = 1/2h x 9
45 = 9/2h
10 = h
h = 10
4 0
3 years ago
PLEASE HELP:))))))) 15points
Zielflug [23.3K]

Answer:7 cm

Step-by-step explanation: you know everything except the radius. Use this equation to help you: 44=2*pi*radius

Divide 44 by 2pi. Then u have your radius which is 7

7 0
3 years ago
peter inherits 15000 dollar and place money with a bank.the interest rate are 3 percent .how many money will he get after 1 year
irakobra [83]
He gets $15450 after 1 year.... interest at 3% is $450
8 0
3 years ago
The Maine Public Health Department reported that there have been 90 flu cases requiring hospitalization in Portland, ME (populat
Zigmanuir [339]

Answer:

The prevalence rate of flu cases requiring hospitalization thus far in 2018 is:

= 0.13%

Step-by-step explanation:

a) Data and Calculations:

Population of Portland, ME = 70,000

Number of flu cases requiring hospitalization on February 1st, 2018 = 43

Number of flu cases requiring hospitalization on July 4th, 2018 = 90

The prevalence rate of flu cases requiring hospitalization thus far in 2018 = 90/70,000 * 100 = 0.13%

b) The prevalence rate represents the proportion of the population of Portland, ME, who have the flu at the time that the Maine Public Health Department reported the number of flu cases requiring hospitalization on July 4th, 2018.

3 0
3 years ago
Find the volume of a pyramid with a square base, where the perimeter of the base is 16.9\text{ cm}16.9 cm and the height of the
worty [1.4K]

Answer:

Volume of square based pyramid = 116.62 cm³

Step-by-step explanation:

Given:

Perimeter of square base = 16.9 cm

Height of pyramid = 19.6 cm

Find:

Volume of square based pyramid

Computation:

Perimeter of square base = 16.9 cm

4[Side] = 16.9

Side = 4.225 cm

Area of square = Side x Side

Area of square = 4.225 x 4.225

Area of square = 17.85 cm²

Volume of square based pyramid = [Area of square][Height of pyramid] / 3

Volume of square based pyramid = [17.85][19.6] / 3

Volume of square based pyramid = 349.86 /3

Volume of square based pyramid = 116.62 cm³

7 0
3 years ago
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