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Schach [20]
3 years ago
12

7 is less than or equal to 0.5v + 10

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0
X is less than or equal to -1.5
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Bella and Heather put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes af
Hatshy [7]

Answer:

\boxed{ \text{B. 10 weeks, \$310 }}\\

Step-by-step explanation:

We have two conditions:

\begin{array}{lrcll}(1) & y & = & 25x + 60 & \\(2) & y & = & 30x + 10 & \\ & 25x + 60 & = & 30 x + 10 & \text {Set (1) = (2)} \\ & 50 & = & 5x & \text{Subtracted 25x from each side} \\& x & = & 10 &\text{Divided each side by 5} \\\end{array}\\$ $\\\boxed{ \textbf{The number of weeks is }x = 10}\\

   

    Bella: y = 25x + 60 = 25(10) + 60 = 250 + 60 = 310  

Heather: y = 30x + 10  = 30(10) +  10 = 300 + 10  = 310

7 0
3 years ago
The weather report states that the probability it will rain on Wednesday is 30 percent and the probability that it will rain on
Sauron [17]
Since these 2 events are independent , the probability of them both occurring is obtained by multiplying them

P(rain on Wed and Sat) =0.30* 0.60 = 0.18

 which is 18%
3 0
3 years ago
Read 2 more answers
The table shows a linear function. <br><br> Which equation represents the function.
mote1985 [20]

Answer:

\large\boxed{f(x)=\dfrac{3}{2}x-1}

Step-by-step explanation:

\text{The slope-intercept formula:}\\\\y=mx+b\\\\m\ -\ slope\\b\ -\ y-intercept\\\\\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{From the table we hve two points (0, -1) and (2, 2). Substitute:}\\\\m=\dfrac{2-(-1)}{2-0}=\dfrac{3}{2}

\text{Therefore the equation is}\ f(x)=\dfrac{3}{2}x-1\\\\\text{Check for  the point (4, 5):}\\\\f(4)=\dfrac{3}{2}(4)-1=(3)(2)-1=6-1=5\qquad\ CORRECT

7 0
3 years ago
Sales associates at an electronics store earn different commission
Katen [24]

Answer:

how am i gonna solve the equation if i cant see the actual chart?

Step-by-step explanation:

4 0
3 years ago
I don’t understand this, need help.
zaharov [31]

Answer:

8 units

Step-by-step explanation:

3 0
3 years ago
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