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Scilla [17]
3 years ago
9

Write a proportion for: a test is worth 50 points; test score of 40%

Mathematics
2 answers:
DochEvi [55]3 years ago
7 0
The proportion for a test of 50 points with a test score of 40%:

You need to multiply 0.4 and 50. Which is 0.4 • 50 = 20

Hope this helps! :)
stepladder [879]3 years ago
3 0
It would be 50:20 or 25:10 or 5:2
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3 years ago
1/3 x 3/4<br> Help me plss
EastWind [94]

Answer:

1/4

Step-by-step explanation:

this should be it

(hope it helps)

8 0
2 years ago
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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B%28%20%5Cfrac%7B1%7D%7B8%7D%20%20-%20x%29%7D%20%20%3D%20%20-%20%20%5Cfrac%
Rashid [163]

∛(1/8 - <em>x</em>) = -1/2

Take the 3rd power of both sides and solve:

(∛(1/8 - <em>x</em>))³ = (-1/2)³

1/8 - <em>x</em> = -1/8

2/8 = <em>x</em>

<em>x</em> = 1/4

7 0
2 years ago
All of number one thank you
Vadim26 [7]
I'm going to divide number one to 6 parts
1. \frac{4}{10} = \frac{40}{100}
2. \frac{7}{10} = \frac{70}{100}
3. \frac{2}{10} = \frac{20}{100}
4. \frac{9}{10} = \frac{90}{100}
5. \frac{18}{10} = \frac{180}{100}
6. \frac{26}{10} = \frac{260}{100}

because to make the denominator to 100, you need to multiply 10 by 10 which is 100.
and because you multiply 10, you also have to multiply the numerator by 10.
EXAMPLES: \frac{3}{10} = \frac{3}{10} × \frac{10}{10} = \frac{30}{100}
6 0
2 years ago
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Homes in your neighborhood appreciates at a rare Of 3.5% annually. The family purchase a home in your neighborhood with a value
svet-max [94.6K]

Answer: it will take 13 years for the home to be valued at 250,000

Step-by-step explanation:

The growth rate is exponential. We would apply the formula for exponential growth which is expressed as

y = b(1 + r)^ t

Where

y represents the value of the house after t years.

t represents the number of years.

b represents the initial value of the house.

r represents rate of growth.

From the information given,

b = 160000

y = 250000

r = 3.5% = 3.5/100 = 0.035

Therefore

250000 = 160000(1 + 0.035)^t

250000/160000 = (1.035)^t

1.5625 = (1.035)^t

Taking log of both sides to base 10

Log 1.5625 = log1.035^t = tlog1.035

0.1938 = t × 0.0149

t = 0.1938/0.0149

t = 13 years

8 0
3 years ago
Read 2 more answers
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