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Vinvika [58]
3 years ago
11

Which ordered pair is a solution to this system of equations. 7x+5y=59 and 3x-9y=159

Mathematics
2 answers:
Helen [10]3 years ago
8 0

Answer:

the answer is c

Step-by-step explanation:

7(17)+5(-12)=59

3(17)-9(-y)=159 - two negative signs cancels each other and becomes a positive

alina1380 [7]3 years ago
7 0
Your is answer should be D
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I need help please!!!
seraphim [82]

Answer: number 1

Step-by-step explanation:

That is how you would write the ratio word for word.

- hope this helped!

7 0
3 years ago
The Baker Family spent $28 on 5 tickets.
White raven [17]

Answer:

I cannot not give the correct solution, need more context. How many children are there, how many adults are in the family? So I will explain in my explanation.

Step-by-step explanation:

If more context were given, for example:<em> 2 adults and 2 children.</em>

Then the bakers would have bought 2 adult tickets for ___ each

Then the bakers would have bought 3 children's tickets for ___ each

So using what we know we can create an equation:

<em>2A+3C=28</em>,<em> </em>

meaning 2 adult tickets plus 3 children's tickets costs a total of $28.

So we divide 28 by 5, which is the total amount of tickets.

28/5=5.6

So to figure the cost of children's tickets multiply the cost by amount.

3*$5.6=$16.8, C=16.8

To figure out the cost of the adults tickets multiple the cost by the amount.

2*$5.6=$11.2, A=11.2

a) the bakers would have bought <u>2</u> adult tickets for <u>5.6</u> each.

b) the bakers would have bought <u>3</u> children's tickets for <u>5.6</u> each.

8 0
4 years ago
if there are 20 questions on a test and I get 45% on the test how much is each question worth percent wise??
kompoz [17]
It’s most likely a D
3 0
2 years ago
Need help please...............................
Hunter-Best [27]
Note that the side adjacent to angle XYZ is given (6 cm) and that the hypo is also given (15 cm).  Thus, cos XYZ = adj / hyp = 6 cm / 15 cm  = 2/5 = 0.4.

XYZ is then  arc cos 0.4.  Use the arccos function on your calculator to determine XYZ and give XYZ in both degrees and radians.
7 0
3 years ago
The position d of bicyclist (measured in kilometres) is a linear function of time t (measured in minutes). At time t= 5 minutes,
satela [25.4K]

Answer:

<h2>               21 km    </h2>

Step-by-step explanation:

If the bicyclist travels 7 km for every 5 minutes then it is directly proportional

5 min        7 km

15 min          x

x=\dfrac{15\cdot7}{5}=3\cdot7=21\,km

3 0
3 years ago
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