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Nutka1998 [239]
3 years ago
9

5. If three tacos and two drinks cost $13.00, and four tacos and one drink costs $15.25, how much does

Mathematics
1 answer:
Firdavs [7]3 years ago
5 0

Answer:

D. 3.50

Step-by-step explanation:

3t+2d=$13.00

4t+d=$15.25

3t+2d=$13.00

8t+2d=$30.50

E2-E1

5t=$30.50-$13.00

t=3.5

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Step-by-step explanation:

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3 years ago
17. Solve the following:<br> x – 3y = 5<br> 5x – 2y = -1
Phantasy [73]

Answer:

(- 1, - 2 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 5 → (1)

5x - 2y = - 1 → (2)

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x = 5 + 3y → (3)

Substitute x = 5 + 3y in (2)

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Solution is (- 1, - 2 )

8 0
3 years ago
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seraphim [82]
The answer is A and D
3 0
3 years ago
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Alja [10]

Answer:

(20,-7)

Step-by-step explanation:

6 0
3 years ago
The following graph shows data regarding the population of a town in thousands. At what rate was the population​ changing?
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the rate or average rate of change, namely the slope will then be 

\bf \begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~{{ 1965}} &,&{{140}}~) &#10;%  (c,d)&#10;&&(~{{ 1990}} &,&{{ 100}}~)&#10;\end{array}&#10;\\\\\\&#10;% slope  = m&#10;slope = {{ m}}\implies &#10;\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{100-140}{1990-1965}\implies \cfrac{-40}{25}\implies -\cfrac{8}{5}
4 0
3 years ago
Read 2 more answers
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