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3 years ago

What’s the answer?2/5+(4/7+3/5)

Mathematics

1 answer:

alexira [117]3 years ago

6 0

Answer:

1 4/7

Step-by-step explanation:

2/5 x 7/7 = 14/35

4/7 x 5/5 = 20/35

3/5 x 7/7 = 21/35

14/35 + 20/35 + 21/35 = 55/35

55/35 = 1 20/35 = 1 4/7

Hopefully this helps you :)

pls mark brainlest ;)

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if mr sulivan drove 7hrs within 385 miles and then he drives 3 hrs in the distance of 165 miles is the amount of time of the two

ehidna [41]

the amount of time of the two trips is a proportional relationship

<h3>What is proportional relationship?</h3>

mathematical expressions are said to be proportional if there unit rate are equal. this means that the expressions will give similar results when similar values are substituted into the equation.

<u>solution:</u>

Driving 7 hrs within 385 miles represents a unit rate of 385 / 7 = 55 miles per hour or 55 mph

while 3 hrs in 165 miles represents a unit rate of 165 / 3 = 55 mph

since both situations gave similar speed in miles per hour they are said to have a proportional relationship.

Read more on proportional relationship here: brainly.com/question/12242745

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1 year ago

What is 2x + 11y when x = 4 and y = 2?<br><br> A. 30<br><br> B. 38<br><br> C. 48<br><br> D. 136

Alla [95]

The correct answer is A

6 0

3 years ago

Read 2 more answers

Help I just not that smart

Lubov Fominskaja [6]

Answer:

$1\frac{1}{9}$ gallons of paint

Step-by-step explanation:

paint =

2/3 ---- 3/5

x ---- 1

$x = \frac{\frac{2}{3} }{\frac{3}{5} } =\frac{(2)(5)}{(3)(3)} =\frac{10}{9}$

$x=1\frac{1}{9}$

Hope this helps

4 0

2 years ago

Read 2 more answers

Y=2x-10 substitution <br> Y=4x

Arada [10]

X=5
Work:

y=2x-10
4x=2x-10
2x=10, then divide 2x on each side
x=5

4 0

3 years ago

The following data is a randomly selected sample of 20 state populations. find the measures of central tendency. you may use tec

GuDViN [60]

The mean is 6394530.35 and the median is = 3355572.5

The missing data is attached in the answer.

Mean is the average value of the data points , it is determined by dividing the total sum of the data points to the number of data points.

Mean and Median is the measure of the central; tendency of the data.

Mean is given by

Sum of the observations/number of observations

= (741894 + 6931071....)/20

= 6394530.35

2) To find median

The data needs to be arranged in ascending order

Then the median is the middle number of the arranged data

Here the median is = 3355572.5

To know more about Mean

brainly.com/question/13451489

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3 0

2 years ago