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Sphinxa [80]
3 years ago
13

3/4 − 2/5 in a fraction

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
6 0

Answer:

7/10

Step-by-step explanation:

Rzqust [24]3 years ago
4 0

Answer:

0.35

Step-by-step:

\frac{3}{4} - \frac{2}{5} =  \frac{3 \times 5}{4 \times 5} - \frac{2 \times 4}{5 \times 4} =  \frac{15}{20} -   \frac{8}{20} =  \frac{15 - 8}{20} =  \frac{7}{20} = 0.35

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When twice a number is subtracted from 29 the result is 21 find the number
Gre4nikov [31]
X= a number

29 - 2x= 21
subtract 29 from both sides
-2x= -8
divide both sides by -2
x= 4

CHECK:
29 - 2x= 21
29 - 2(4)= 21
29 - 8= 21
21= 21

ANSWER: The number is 4.

Hope this helps! :)
4 0
3 years ago
What is the sum to 27 plus 11
SSSSS [86.1K]

Answer: 38

Step-by-step explanation: 27+11=38

8 0
4 years ago
Read 2 more answers
What is the value of y when x = 43<br><br> PLS HELPP
Goryan [66]

Answer:

Hi there~

y=87

X side. Y side  

1. 3

2. 5

3. 7

4. 9

5. 11

Step-by-step explanation:

We can see that ix x = 1 and y = 3, then that means 1+2

then its 2+3 then 3+4 and so on

So 43 + 44 = 87

So y should equal 87 :)

3 0
3 years ago
The length of a picture is 15.75 inches shorter than twice the width. If the perimeter of the picture is 106.5 inches, find its
Vladimir79 [104]

Answer:

Length = 45.37 in

Width = 30.56 in

Step-by-step explanation:

Let the width of the picture be 'w' inches.

Given:

Perimeter of the picture is, P=106.5\ in

Length is 15.75 inches shorter than twice the width. So, length is:

l=2w-15.75

Now, we know that the perimeter of a rectangular shape is given as the sum of all of its side. So, the picture is also of rectangular shape and hence the perimeter is given as:

P=2l+2w

Plug in the values of 'l' and 'P' and solve for 'w'. This gives,

106.5=2w-15.75+2w\\106.5=4w-15.75\\106.5+15.75=4w\\4w=122.25\\w=\frac{122.25}{4}=30.56\ in

Therefore, the width of the rectangular picture is 30.56 inches.

Length of the picture is, l=2(30.56)-15.75=61.12-15.75=45.37\ in

So, length of the picture is 45.37 inches and width is 30.56 inches.

3 0
3 years ago
Ned's frog jumped 38\100 meter.Then his frog jumped 4\10 meter.How far did Ned's frog jump in all?
yanalaym [24]
So first, we need to find a common denominator, make the numbers below the line equal to each other
to do this, we multiply the denominator AND numerator of 4/10 so you can get the equivilent fraction with a denominator of 100
4*10=40
10*10=100
4/10=40/100
now we add the two fractions together and we get 
38/100+40/100= 
78/100 of a meter
8 0
3 years ago
Read 2 more answers
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