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Ivan
3 years ago
5

Using Substitution solve: y=x+5 4x+y=20

Mathematics
1 answer:
Vladimir [108]3 years ago
4 0

Answer:

3

Step-by-step explanation:

So first, plugin y to your equation, it should look like this: 4x+x+5+20. Now, we can solve this. Next, we have two x's so we can combine them. The equation will now look like this: 5x+5=20. Now, we have an extra 5 laying around that we need to get rid of, so we can subtract that 5 to both sides of the equation and we get this: 5x-5=20-5 which ends up being 5x=15. Now, we just divide both ides by 5 and since 15 divided by 5 is 3, we get: x=3

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mestny [16]

Answer:

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5 0
3 years ago
Read 2 more answers
What is the effect on the graph of f(x) if it is changed to f(x) + 2 and f(x + 2)?
liraira [26]

Answer:

For f(x)+2, it goes along the y axis, 2 units.

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Step-by-step explanation:

6 0
3 years ago
Hi I need question 5 solved using SOH CAH TOA!
Bond [772]

According to the trigonometric functions, we can see that angle x can be found through the one that involves the adjacent side and the hypotenuse, which in this case is the cos,

cos(x)=\frac{27}{30}

then, if we apply the inverse we can find the value of x,

\begin{gathered} cos^{-1}(cos(x))=cos^{-1}(\frac{27}{30}) \\ x\cong25.8 \end{gathered}

Answer:

x\cong25.8

5 0
1 year ago
5/8 9/x the figures are similar find x
Drupady [299]
5/8 9/x

Cross multiply

9x8=72
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Rewrite the equation

72 = 5x

Divide by 5

72÷5=14.4

So, x=14.4
8 0
3 years ago
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g(x) - f(x) = -13

down 13 unit

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