7 times as much as the sum of 1/3 and 4/5
Answers
To add 2 fractions, they need to have the same denominator. Since 3 and 5 don't have a common factor, so you multiply 1/3 by 5, and 4/5 by 3, so you get:
Now, the two fractions got the same denominator, and you can add them by adding the numerators over the same denominator. (You don't add denominators in addition) so you get:
That's the sum of 1/3 + 4/5.
Now, they want the sum of the 2 fractions 7 times. So you multiply 17/15 by 7. And as you know, 7 = 7/1. So you get:
In multiplication no need to have the same denominator. You multiply nominators by nominators and denominators by denominators. So you get:
Since 119 and 15 don't have a common factor, so they can't be simplified.
So, the answer is 119/15.
Hope this Helps! :D
What you have to do first is to add and
,
Further Explanation
Therefore we have:
= +
= ( +
) / 15 (15 is the smallest number that divide both denominator also known as LCD)
= (5 x 1) + (3 x 4) / 15
= 5 + 12 / 15
=
Therefore, the sum of +
is
But since the question says you should determine the sum of the 2 fractions, therefore you should multiply by 7. Therefore you should have:
X 7 (7 can also be expressed as
)
= x
(notably, in multiplication there is no need for the fraction to have the same denominator. You can multiply both numbers at the top together (numerator) and do same with the denominator.
=
=
Therefore, 7 times as much as the sum of and
is
LEARN MORE:
- 7 times as much as the sum of 1/3 and 4/5 brainly.com/question/1063624
- 7 times as much as the sum of 1/3 and 4/5 brainly.com/question/282415
KEYWORDS:
- multiplication
- addition
- sum
- denominator
- numerator
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The ground temperature at Brigham Airport is 12 degrees Celsius. The temperature decreases by 6.8 Celsius for every increase of 1 kilometer above the ground. What is the overall change in temperature outside a plane flying an altitude of 5 kilometers above Brigham Airport?
Answers
So if there are 5 doors, and there are two more windows than doors, then there is 5 + 2 = 7 windows.
So, there is a total of 7 windows.
Answers
B.12.5%
C.11%
D.15%
Answers
x=9/8=1.125
.125*100=12.5%
because 10+80 equals 90
Answers
f(x) = x3 + 4x2 − x − 4
f(x) = x3 + 3x2 − 4x − 12
f(x) = x3 + 2x2 − 4x − 8
Answers
Answer:
Step-by-step explanation:
From the graph, the x-intercepts are;
These are root of the polynomial function represented by the given graph.
By the remainder theorem;
According to the factor theorem, if is a factor of
, then
This implies that;
are factors of the required function.
Hence;
We expand using difference of two squares to obtain;
We expand using the distributive property to get;
Rewrite in standard form to obtain;
Answer:
Choice A: f(x) = x^3 + x^2 − 4x − 4
Step-by-step explanation:
Here's a great and simple answer.
Ok first we need to take the x intercepts to solve.
If we look at the graph we see the x ints are -2,+1 and +2.
To solve we need to put them into factor form
= (x-2) (x+2) and (x+1)
Simplify: (x-2) (x+2) = (x^2-4) and (x+1)
Now we take (x^2-4) and (x+1) and multiply them to find our answer
(x^2-4) (x+1)
= x^2(x) and x^2(1) = x^3 and x^2.
now the other: -4(x) and -4(+1) = -4x and -4
We have nothing common here so we just join them
= x^3 + x^2 - 4x - 4, and that is the same as choice A.
B. 468.9
C. 410.3
D. 205.1
Answers
Answer:
The answer is C
Step-by-step explanation:
Fuente: Mis huevos