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Triss [41]
3 years ago
8

5a - 2(4a + 1) + 6(4a - 1)​ simplify it show workpls

Mathematics
2 answers:
pickupchik [31]3 years ago
6 0

Answer:

21a-8

Step-by-step explanation:

MrMuchimi3 years ago
3 0

Answer:

21a - 8

Step-by-step explanation:

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At the movie theatre, child admission is 6.30 and adult admission is 9.50 . On Sunday, four times as many adult tickets as child
Lady_Fox [76]

According to the characteristics of <em>ticket</em> sales and the resulting system of linear equations we find that 122 children bought each one a ticket on Sunday.

<h3>How many children went to the movie theatre?</h3>

In this question we have a <em>word</em> problem, whose information must be translated into <em>algebraic</em> expressions to find a solution. Let be x and y the number of children and adults that went to the movie theatre, respectively.

We need two <em>linear</em> equations, one for the number of people assisting to the theatre and another for the total sales:

x - 4 · y = 0     (1)

6.30 · x + 9.50 · y = 1063.20     (2)

By algebraic procedures the solution to this system is: x = 122.559, y = 30.639. Since the number of tickets sold are integers, then we truncate each result: x = 122, y = 30.

According to the characteristics of <em>ticket</em> sales and the resulting system of linear equations we find that 122 children bought each one a ticket on Sunday.

To learn on systems of linear equations: brainly.com/question/27664510

#SPJ1

4 0
1 year ago
Which two numbers add up to be 8 and multiply to be -84
Kisachek [45]
Righ, so negative times positive=negative
negative+positive=positive
thereofr
positive>negative

factor -84 where the negative is smaller ex -12 and 13, not -14 and 10 so

-2 and 42 nope
fast forward
-6 and 14 yes
-6+14=8
so the numbers are -6 and 14
6 0
3 years ago
Y=-2x+3???????????????????????
Ksju [112]

Answer:

Step-by-step explanation:

make y=0

0=-2x+3 (Switch the 3 sides)

-3=-2x (Divide everything by -2, cant have a negative x)

2/3=x or 0.66=x

7 0
2 years ago
I got the answer it is A I just need you to check it pls thank you
andrey2020 [161]

We have a circle of radius 5 m inside a square of side 10 m. The shaded area is:

A_{\text{Shaded}}=A_{\text{Square}}-A_{\text{Circle}}

Now, we calculate the area of the square and the circle:

\begin{gathered} A_{\text{Square}}=10^2=100m^2 \\ A_{\text{Circle}}=\pi\cdot5^2=25\pi m^2 \end{gathered}

Finally, the shaded area is:

A_{\text{Shaded}}=100-25\pi\approx21.5m^2

3 0
11 months ago
a woman earned wages of $34,600, received $1500 in interest from savings acxount, and contributed $2900 to a tax-deferred retire
xz_007 [3.2K]
Add them all.34,6000 and 15000 and 2900 and 4050
4 0
3 years ago
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