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polet [3.4K]
2 years ago
6

Solve the following systems of equations using the substitution method.

Mathematics
1 answer:
ira [324]2 years ago
8 0

Answer:

(-1,2)

Step-by-step explanation:

x = 3-2y

then

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

15 -10y +3y = 1

14 = 7y

y = 2

then

x = 3-2(2)

x = -1

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krek1111 [17]

Answer:

x=5

y=3

Step-by-step explanation:

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Now, consider a right triangle with legs of lengths 5 cm and 12 cm. what is the length c of the hypotenuse of this triangle?
Rufina [12.5K]
Hypotenuse^2=12^2+5^2=144+25=169

⇒ hypotenuse =V169=13 cm


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Which equation describes the statement shown?
uranmaximum [27]
Y=2x+1
x is the input, so the 2x will make it twice the input, and the +1 will make it one more, therefore y(the output) is one more than twice the input :)
3 0
3 years ago
HELP URGENT I WILL GIVE 20 POINTS
Lunna [17]

h = 9.2 cm

Solution:

Base of smaller triangle = 5 cm

Height of smaller triangle = 2.3 cm

Base of larger triangle = 15 cm + 5 cm = 20 cm

Height of larger triangle = h

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$\frac{2.3}{5}=\frac{h}{20}

Multiply by 20 on both sides.

$20 \times \frac{2.3}{5}=\frac{h}{20} \times 20

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So that Ryan should have add 15 and 5 to get a denominator of 20 on the right sides of the first line. Doing so gives the correct value, h = 9.2 cm.

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3 years ago
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