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ollegr [7]
3 years ago
12

2/3x + 2 = 7/4 Please help and explain

Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0

Answer:

x=8/3

Step-by-step explanation:

2/3x+2=7/4

2+2*3x/3x=7/4

2+6x/3x=7/4

(2+6x)*4=7*3x

8+24x=21x

24x-21x=8

3x=8

x=8/3

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Vikram drinks 6/10 of a liter of water after gym class and 33/100 hours of a liter of juice with
algol13

The Vikram is not correct as he said that he drank a total of 39/100

of a liter in gym class and in his lunch, but he drank a total of 39/100 of a liter.

<h3>What is the fraction number?</h3>

A fraction number is the number which is a part of a whole number. It is written with a numerator and denominator. Fraction number are written as,

\dfrac{a}{b}

Here (a) is the numerator and (b) is the denominator.

Vikram drinks 6/10 of a liter of water after gym class and 33/100 hours of a liter of juice with his lunch.

Thus, the total amount he drank is,

n=\dfrac{6}{10}+\dfrac{33}{100}\\

Take the LCM 100, to solve it further,

n=\dfrac{60+33}{100}\\n=\dfrac{99}{100}\\

Now, Vikram says he drank a total of 39/100 of a liter, which is an incorrect claim.

Thus, the Vikram is not correct as he said that he drank a total of 39/100

of a liter in gym class and in his lunch, but he drank a total of 39/100 of a liter.

Learn more about the fraction number here:

brainly.com/question/78672

#SPJ1

4 0
2 years ago
Grace is standing 14 feet from a lighthouse and Kelly is standing 12 feet from Grace. The angle that Grace looks up to see the t
mezya [45]
To find the height of the lighthouse, use tan45= \frac{h}{14} to get that h = 14 (the tangent of 45 is 1).  Now for the next question, you have to use the height you just solved for to find angle y.  Use tan(y)= \frac{14}{26} and the inverse tangent button on your calculator tells us that the angle is 28.3. Now for the last question, use the supplement of 45 to get that the angle adjacent to y is 135.  180 - 135 - 28.3 = 16.7  That's your x value.
6 0
4 years ago
Select the expressions that are equivalent to 8 2/3
user100 [1]
To change a mixed fraction, you'd multiply the number upfront, times the denominator, and then add that product to the numerator
that IS the new numerator, and you keep the denominator
thus \bf 8\frac{2}{3}\iff \cfrac{8\cdot 3+2}{3}
6 0
3 years ago
Find the area of a triangle with sides a=5, b=8 and c=11
Lynna [10]

Answer:

440

Step-by-step explanation:

5x8=40

40x11=440

Have a good day :P :P

5 0
3 years ago
Read 2 more answers
In which direction does the graph of the function shown below open?
sp2606 [1]

Answer:

D. Up

Step-by-step explanation:

When a parabola has the form  y=ax^2+bx+c , It is vertical (opens up or down).

Because the variable "x" is squared.

If  "a" is positive, then the parabola opens up, but if it is negative, then the parabola opens down.

In this case you have the quadratic function:

f(x) = 2x^2+5x-4

Which can be rewritten as:

 y = 2x^2+5x-4

Therefore, it is vertical, because it has the form:  y=ax^2+bx+c

You can observe that the value of "a" is:

a=2

Then, since "a" is positive, the parabola opens up.

5 0
3 years ago
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