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Morgarella [4.7K]
3 years ago
9

Can you help me on his question

Mathematics
2 answers:
liraira [26]3 years ago
7 0
C 2 (-20)

He withdrew (took out) money twice.
That's -20 two times.
cestrela7 [59]3 years ago
3 0
How do you subtract an inter from another integer without using a number line or counters
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Construct a circle graph that represents the following data concerning the monthly expenses for a family budget.
rodikova [14]

Answer:

The circle graph is attached.

Step-by-step explanation:

a) Data and Calculations:

Monthly Expenses for a Family Budget

Expenses   Percentage   Degree

Housing            35%        130°  (360° * 35%)

Food                  14%         50°  (360° * 14%)

Clothing            17%          60°  (360° * 17%)

Entertainment  12%          40°  (360° * 12%)

Auto                22%           80°  (360° * 22%)

b) The result shows that Housing expense took more than one-third of the circle with auto expenses occupying the next biggest chunk of the circle.  Clothing came third to occupy one-sixth of the circle, with food and entertainment trailing behind with less than one-sixth of the circle respectively.

Download xlsx
6 0
3 years ago
Dan's school is selling tickets to a play. On
katrin [286]

Answer: $9.50

Step-by-step explanation:Let's define the variables:

A = price of one adult ticket.

S = price of one student ticket.

We know that:

"On the first day of ticket sales the school sold 1 adult ticket and 6 student tickets for a total of $69."

1*A + 6*S = $69

"The school took in $150 on the second day by selling 7 adult tickets and student tickets"

7*A + 7*S = $150

Then we have a system of equations:

A + 6*S = $69

7*A + 7*S = $150.

To solve this, we should start by isolating one variable in one of the equations, let's isolate A in the first equation:

A = $69 - 6*S

Now let's replace this in the other equation:

7*($69 - 6*S) + 7*S = $150

Now we can solve this for S.

$483 - 42*S + 7*S = $150

$483 - 35*S = $150

$483 - $150 = 35*S

$333 = 35*S

$333/35 = S

$9.51 = S

That we could round to $9.50

That is the price of one student ticket.

4 0
2 years ago
Where are the x-intercepts for f(x) = −4cos(x − pi over 2) from x = 0 to x = 2π?
yKpoI14uk [10]
Recall that to get the x-intercepts, we set the f(x) = y = 0, thus

\bf \stackrel{f(x)}{0}=-4cos\left(x-\frac{\pi }{2}  \right)\implies 0=cos\left(x-\frac{\pi }{2}  \right)
\\\\\\
cos^{-1}(0)=cos^{-1}\left[ cos\left(x-\frac{\pi }{2}  \right) \right]\implies cos^{-1}(0)=x-\cfrac{\pi }{2}
\\\\\\
x-\cfrac{\pi }{2}=
\begin{cases}
\frac{\pi }{2}\\\\
\frac{3\pi }{2}
\end{cases}

\bf -------------------------------\\\\
x-\cfrac{\pi }{2}=\cfrac{\pi }{2}\implies x=\cfrac{\pi }{2}+\cfrac{\pi }{2}\implies x=\cfrac{2\pi }{2}\implies \boxed{x=\pi }\\\\
-------------------------------\\\\
x-\cfrac{\pi }{2}=\cfrac{3\pi }{2}\implies x=\cfrac{3\pi }{2}+\cfrac{\pi }{2}\implies x=\cfrac{4\pi }{2}\implies \boxed{x=2\pi }
3 0
3 years ago
What is the constant of proportionality in the equation y = 5/9 x ?
Mazyrski [523]

The constant of proportionality is 5/9

y= kx  where k is the constant of proportionality

y = 5/9 x

k = 5/9

6 0
3 years ago
Through her bike 6 miles from her house to the library and then another two and 250 miles to her friend Milo's house and Carson'
Katarina [22]
25 ok i think that
 ok byeeeeee
4 0
3 years ago
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