Which ordered pair is a solution of the equation? y = 3x+5

Mathematics

1 answer:

DedPeter [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Y=1/3y+-5/3

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If m∠A=(3x)∘and m∠D=(x+60)∘,what value of x

kenny6666 [7]

Answer:

Step-by-step explanation:

Adjacent angles of a parallelogram add up to 180 degrees, meaning that (3x)+(x+60)=180 degrees. You can use this to set up the following equation:

3x+x+60=180

4x=120

x=30 degrees. Hope this helps!

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3 years ago

For each of 3 years, the table above gives the number of different routes a runner ran, the number of runs she ran, and the tota

Ksju [112]

No way i can answer this impossible

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3 years ago

What is the solution for this problem?

Over [174]

First of all let's rearrange the equation for the given line:

4x + 7y + 3 = 0
7y = -4x - 3
y = (-4/7)x - 3/7
Now we know that the gradient of the line is -4/7

The gradients of two perpendicular lines multiply by each other to give -1, ie.
(-4/7)*m = -1
m = -1/(-4/7)
= 7/4, therefor the gradient of the perpendicular line is 7/4

Now we can substitute this and the point (-2, 1) into the equation y - y1 = m(x - x1)
y - 1 = 7/4(x - (-2))
y = 7/4x + 7/2 + 1
y = 7/4x + 9/2

If we look at the given answers then C is correct, since 9/2 = 18/4 and so the equation may also be written as y = 7/4x + 18/4

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3 years ago

Suppose Becky invests in an annuity that pays 4.3% annual interest, compounded monthly and contributes $225 every month for 20 y

aleksklad [387]

Answer:

$85365.90

Step-by-step explanation:

Let's start by finding the effective rate of interest

.043/12=.00385333

$225*\frac{(1+.00385333)^{20*12}-1}{.00385333}=85365.89513$