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White raven [17]
3 years ago
7

ASAP When 4(0.5x+2.5y-0.7x-1.3y+4) is simplified, what is the resulting expression?

Mathematics
2 answers:
adell [148]3 years ago
6 0

Answer:

The answer is A.

Step-by-step explanation:

4(0.5x+2.5y-0.7x-1.3y+4)

2x+10y+-2.8x+-5.2y+16

2x-2.8x+10y-5.2y+16

= -0.8x+4.8y+16

IgorC [24]3 years ago
5 0
The answer to your question is A
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A science class has a ratio of 3 boys and 2 girls. Can there be 24 students in the class?
guajiro [1.7K]

Answer:

Let 3x be the number of boys

Let 2x be the number of girls

3x + 2x = 24

5x = 24

x = 4.8

3(4.8) = 14.4 boys

2(4.8) = 9.6 girls

There can't be 24 students for a ratio of 3 boys and 2 girls, because there can't be 14.4 boys and 9.6 girls, it has to be an exact number, otherwise it wouldn't make any sense.

For example, you and I are both 1 person, we can't be half a person or 0.6 of a person, only 1.

3 0
3 years ago
Read 2 more answers
Seven times the smaller
Taya2010 [7]

Given:

Seven times the smaller  of two consecutive even  integers  is the same as  -300 minus 4 times the  larger integer.

To find:

The integers .

Solution:

Let the smaller even integer be x.

So, larger even integer is x+2 because they are consecutive even  integers.

Seven times the smaller  integer = 7x

-300 minus 4 times the  larger integer = -300-4(x+2)

Now,

7x=-300-4(x+2)

7x=-300-4x-8

7x+4x=-308

11x=-308

Divide both sides by 11.

x=\dfrac{-308}{11}

x=-28

So, the smaller even integer is -28.

x+2=-28+2=-26

So, the larger even integer is -26.

5 0
3 years ago
What is the slop of a line perpendicular to the line whose equation is 4x+6y=108. Reduce your answer
ahrayia [7]

<u>Answer:</u>

The slope of a line perpendicular to the line whose equation is 4x+6y=108 is \frac{3}{2}

<u>Solution:</u>

Given, line equation is 4x + 6y = 108.

We have to find the slope of the line which is perpendicular to the given line equation.

We know that, <u><em>product of slopes of perpendicular lines equals to – 1</em></u>

So, now, let us find the slope of the given line equation.

\text { Slope of a line }=\frac{-x \text { coefficient }}{y \text { coefficient }}=\frac{-4}{6}=\frac{-2}{3}

Now,

slope of given line \times slope of its perpendicular line = -1

\frac{-2}{3} \times slope of perpendicular line = -1

\text { Slope of perpendicular line }=-1 \times \frac{3}{-2}=\frac{-3}{-2}=\frac{3}{2}

Hence, the slope of the perpendicular line is \frac{3}{2}

3 0
3 years ago
PLEASE HELP!!!! <br> Solve the system of equation. Write the solution as a coordinate point.
Dovator [93]

We can just substitute y = 4x+1 in the second equation.

6x-2(4x+1)=-3\\6x-8x-2=-3\\6x-8x-2+3=0\\-2x+1=0\\-2x=-1\\x=\frac{1}{2}

We know the value of x, substitute x in any equations to get the y-value.

4x+1=y\\4(\frac{1}{2})+1=y\\2+1=y\\3=y

The value of y is 3 and the value of x is 0.5 aka 1/2

Since you want the solution as a point then It's below here.

5 0
3 years ago
Order from least to greatest:<br><br> 3/4 3/8 2/3
daser333 [38]
In order from least to greatest it is: 3/8, 2/3, 3/4. To find this on your own get common denominators and compare. Hope this helps.
3 0
4 years ago
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