All categories

2 years ago

2/5 + 1/4 + 7/10 = what's the answer

Mathematics

1 answer:

kotegsom [21]2 years ago

4 0

Convert 2/5, 1/4 and 7/10 to fractions with like denominators.

$\bf{\dfrac{2\times4}{5\times4}+\dfrac{1\times5}{4\times5}+\dfrac{7\times2}{10\times2} \ \ \to \ \ \ Multiply }$

$\bf{\dfrac{8}{20}+\dfrac{5}{20}+\dfrac{14}{20} }$

Since 8/20,5/20 and 14/20 have the same denominator, add their numerators to add them up.

$\bf{\dfrac{8+5+14}{20} \ \ \to \ \ \ Add. }$

$\green{\underbrace{\red{\boxed{\purple{\boxed{\bf{\blue{\frac{27}{20} }}}}}} \ \ \to \ \ \bf{\red{Answer}}}}$

You might be interested in

Please help I’ll give brainlieast

Assoli18 [71]

Answer:

D then A

Step-by-step explanation:

8 0

3 years ago

On the last three physics exams a student scored 89, 87, and 92. What score must the student earn on the next exam to have an av

OlgaM077 [116]

Answer:

For the average to be above 90, the marks in the fourth paper should be MORE THAN 92.

Step-by-step explanation:

The score of students in last 3 exams = 89 , 87 and 92

Let us assume the marks scored by the student in last exam = k

The average of marks should be above 90.

Now, $\textrm{The average of total marks} = \frac{\textrm{Sum of all marks obtained in 4 papers}}{\textrm{ 4 papers }}$

Sum of all 4 paper's marks = 89 + 87 + 92 + k = 268 + k

Also, 90 < Average

$\implies 90 < \frac{268 + k}{4}\\ or, 360 < 268 + k\\\implies 360 - 268 < k\\or, k > 92$

Hence,for the average to be above 90, the marks in the fourth paper should be MORE THAN 92.

4 0

4 years ago

Graph the following {(x,y): x + y = 5}

Whitepunk [10]

For this case we have the following function:

$y = 5-x$

We look for the points of intersection with the x axis, doing y = 0

$0 = 5-x\\x = 5$

We look for the points of intersection with the y axis, doing x = 0

$y = 5-0\\y = 5$

We can also observe that the slope is -1.

$y = mx + b\\y = -x + 5$

Answer:

See attached image

6 0

3 years ago

What is the slope? Loooook atttt the chartttt ✨

gavmur [86]

Answer:

m = 3/5

Step-by-step explanation:

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step 1: Find 2 coordinates

(0, 80)

(-50, 50)

Step 2: Find slope <em>m</em>

m = (50 - 80)/(-50 - 0)

m = -30/-50

m = 3/5

8 0

3 years ago

Can someone help me on this 6th grade problem? Its worth 15 points for anyone to answer

mafiozo [28]

Answer:

<u>I Believe your answer is B, put all the numbers in order then find the middle number</u>

Step-by-step explanation:

it may be thought of as the "middle" value of a data set. For example, in the data set {1, 3, 3, 6, 7, 8, 9}, the median is 6,

7 0

2 years ago

Read 2 more answers

2/5 + 1/4 + 7/10 = what's the answer ​

2/5 + 1/4 + 7/10 = what's the answer