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skad [1K]
3 years ago
15

The ratios in a equivalent ratio table are 3:12, 4:16, and 5:20. If the ratio is 10, what is the second number? Justify your rea

soning.
Mathematics
1 answer:
anzhelika [568]3 years ago
5 0

Answer:

40

Step-by-step explanation:

If you look at the ratios you can see the pattern of the first number being multiplied by 4 everytime. Therefore you must multiply 10 by 4.

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5x+1=3x+y=-15, what is x?
lidiya [134]

Answer:

-2

Step-by-step explanation:

:)

3 0
3 years ago
Read 2 more answers
2x + 6y= 386<br> 4x +4y=292
Vilka [71]

Answer:

x = 13  ,y = 60

Step-by-step explanation:

Solve the following system:

{2 x + 6 y = 386 | (equation 1)

4 x + 4 y = 292 | (equation 2)

Swap equation 1 with equation 2:

{4 x + 4 y = 292 | (equation 1)

2 x + 6 y = 386 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{4 x + 4 y = 292 | (equation 1)

0 x+4 y = 240 | (equation 2)

Divide equation 1 by 4:

{x + y = 73 | (equation 1)

0 x+4 y = 240 | (equation 2)

Divide equation 2 by 4:

{x + y = 73 | (equation 1)

0 x+y = 60 | (equation 2)

Subtract equation 2 from equation 1:

{x+0 y = 13 | (equation 1)

0 x+y = 60 | (equation 2)

Collect results:

Answer: {x = 13  ,y = 60

3 0
3 years ago
Graphing Natural Exponential Functions In Exercise,sketch the graph of the function.See Example 1.
nata0808 [166]

Answer:

The graphic is attached

Step-by-step explanation:

Hi

x H(x)

0 6

≥5 lim┬(x→∞)⁡〖h(x)=5〗

≤5 lim┬(n→-∞)⁡〖h(x)= ∞〗

when x tends to infinity the function approaches five above (horizontal asymptote).

when x tends to infinity the function tends to infinity.

Success with your homework.

Download pdf
6 0
3 years ago
If x=3+root8 and y =3- root 8 find 1/x^2+1/y^2
KonstantinChe [14]

Answer:

34

Step-by-step explanation:

x=3+√8

y =3-√8

now,

1/x^2+1/y^2

=1/(3+√8)² + 1/(3-√8)²

= [(3-√8)²+(3+√8)²] / (3+√8)²(3-√8)²            [L.C.M  = (3+√8)²(3-√8)² ]

=[(3-√8+3+√8)²-2(3-√8)(3+√8) ] / [(3+√8)(3-√8)]²  

=[6²-2.(3²-√8² )] / (3²-√8²)²                 [ a²+ b²=(a+b)²-2ab]

=[36-2(9-8) ]/ (9-8)²

=[36-2.1] / 1²

=34

3 0
3 years ago
5x-2y=305x−2y=30
Snezhnost [94]

Answer:

that is 1/-10.

30 \div  - 300  = 1 \div  - 10

7 0
3 years ago
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