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bulgar [2K]
2 years ago
12

Please solve this!!!!!

Mathematics
1 answer:
vfiekz [6]2 years ago
4 0

Answer:

(1, 2 )

Step-by-step explanation:

Given the 2 equations

3x + y = 5 → (1)

5x - 4y = - 3 → (2)

Rearrange (1) expressing y in terms of x by subtracting 3x from both sides

y = 5 - 3x → (3)

Substitute y = 5 - 3x into (2)

5x - 4(5 - 3x) = - 3 ← distribute and simplify left side

5x - 20 + 12x = - 3

17x - 20 = - 3 ( add 20 to both sides )

17x = 17 ( divide both sides by 17 )

x = 1

Substitute x = 1 into (3) for corresponding value of y

y = 5 - 3(1) = 5 - 3 = 2

Solution is (1, 2 )

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Wendy walks 2 miles in 22 minutes. She continues to walk at the same rate. How many minutes will it take her to walk 11 miles? U
Paladinen [302]

Answer:

121 minutes

Step-by-step explanation:

<em>First, we divide the time by the miles</em>

22 ÷ 2 = 11

<em>So now that we have the unit rate, 1 mile for every 11 minutes, we can multiply 11 (the unit rate minutes) by 11 (the given miles she wants to reach)</em>

11 x 11 = 121

<em>So, in 121 minutes, Wendy can walk 11 miles. </em>

<em>(the double number line will look something like this, but going all the way until 121:11)</em>

6 0
3 years ago
What does this equal? <br>-1/5p=-16
Vlad [161]
P=80 <---this is the answer
5 0
3 years ago
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Vanyuwa [196]

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Step-by-step explanation:

4 0
2 years ago
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Find the GCF of the polynomial, 20ab³ + 16a²b + a
Elza [17]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Eric purchased three music CDs and a sweatshirt from a band's online store and received a 20% discount. He paid $100 for his pur
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60(4c+2s)=12000  divide both sides by 60

4c+2s=200  divide both sides 2

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s=100-2c, and from earlier we saw that s=125-3c, since s=s:

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100+c=125  subtract 100 from both sides

c=25, and since s=100-2c

s=50

So cds cost $25.00 and sweatshirts cost $50.00
6 0
2 years ago
Read 2 more answers
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