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3 years ago

20 POINTS!!!! Please explain will give brainliest!!!

Mathematics

1 answer:

masha68 [24]3 years ago

4 0

X ≤ 30

This means that x, the your mph, can be equal to or less than 30 mph. If over, say 30 < x , then you will be over the speed limit and you'll get a ticket.

hope this helps

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Twenty-five students reported how many email accounts they have. The dot plot below shows the data collected:

Salsk061 [2.6K]

Answer:

The dots above the number 3 represent that 5 students have 3 email accounts

Step-by-step explanation:

each dot represents 1 out of the 25 students

The 3 on the horizontal line is Number of Email Accounts

Visual representation:

3 0

2 years ago

Read 2 more answers

1, 1, 4, 7, 8, 8, 8, 11, 15<br> What is the mode of this list of numbers?<br><br> answer asap!!!!

wlad13 [49]

Answer:

Step-by-step explanation:

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3 years ago

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A shopper bought shoes 45.00. the sales tax is 65%. How much did the shopper pay in all

Yuri [45]

45*65= 29.45
29>45= 74.25

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3 years ago

FURTHER MATHEMATICS Use determinants to solve the systems of equation:

maw [93]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}2x+1y+2z&=&13\\1x+1y-2z&=&8\\1x+2y+1z&=&11\\\end{array}\right.\\\\\\\Delta=\left| \begin{array}{ccc}2&1&2\\1&1&-2\\1&2&1\end{array}\right| =2*\left| \begin{array}{ccc}1&\frac{1}{2}&1\\1&1&-2\\1&2&1\end{array}\right| =2*\left| \begin{array}{ccc}1&\frac{1}{2}&1\\0&\frac{1}{2}&-3\\0&1&3\end{array}\right| =2*(\frac{3}{2}+3)=9\\\\$

$\Delta_1=\left| \begin{array}{ccc}13&1&2\\8&1&-2\\11&2&1\end{array}\right| =2*\left| \begin{array}{ccc}13&1&2\\8&1&-2\\\frac{11}{2}& 1&\frac{1}{2}\end{array}\right| =2*\left| \begin{array}{ccc}13&1&2\\-5&0&-4\\\frac{-5}{2}& 0&\frac{5}{2}\end{array}\right| \\\\=2*(-1)*(\frac{-25}{2}-\frac{20}{2}) =45\\$

$\Delta_2=\left| \begin{array}{ccc}2&13&2\\1&8&-2\\1&11&1\end{array}\right| \\\\\\=\left| \begin{array}{ccc}3&21&0\\3&30&0\\1&11&1\end{array}\right| \\\\\\=1*(90-63) =27\\$

$\Delta_3=\left| \begin{array}{ccc}2&1&13\\1&1&8\\1&2&11\end{array}\right| \\\\\\=\left| \begin{array}{ccc}0&-1&-3\\0&-1&-3\\1&2&11\end{array}\right| \\\\\\=0\\$

$\left\{\begin{array}{ccc}x=\dfrac{\Delta_1}{\Delta}=\dfrac{45}{9}=5\\\\y=\dfrac{\Delta_2}{\Delta}=\dfrac{27}{9}=3\\\\z=\dfrac{\Delta_3}{\Delta}=\dfrac{0}{9}=0\\\end{array}\right.$

8 0

3 years ago

If the divisor is 30, what is the least 3 digit dividend that will give you a remainder of 8?

m_a_m_a [10]

The dividend would be 128 because 128 divided by 30 equals to 4 R 8

3 0

2 years ago