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IgorLugansk [536]
3 years ago
6

Find 8x+y when x=2 and y=5.

Mathematics
1 answer:
fgiga [73]3 years ago
7 0

Answer:

21

Step-by-step explanation:

8x+y, when x=2 and y=5,

then 8*2+5. Because the 2 is right next to the 8, it isn't '82', but '8*2'

According to  PEMDAS, multiplication is done first, so

8*2= 16,

16+5, which is 16+5= 21

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Two life insurance companies determine their premiums using different formulas:
Pie

Answer:

<em>The age at which both companies charge the same premium is 44 years</em>

Step-by-step explanation:

<u>Graph Solution to System of Equations</u>

One approach to solving systems of equations of two variables is the graph method.

Both equations are plotted in the same grid and we find the intersection point(s) of both graphs. Those are the feasible solutions.

The annual premium p as a function of the client's age a for two companies are given as:

Company A: p= 2a+24

Company B: p= 2.25a+13

The graphs of both functions are shown in the image below.

The red line indicates the formula for Company A and the blue line indicates the formula for Company B.

It can be seen that both lines intersect in the point with approximate coordinates of (44,112).

The age at which both companies charge the same premium is 44 years

8 0
3 years ago
2. A pizza restaurant charges y amount for a pizza based on the x number of toppings you select. What
Lapatulllka [165]

Answer:

slope should be 1.50x and your y-intercept should be 7.50

Step-by-step explanation:

5 0
3 years ago
1 sq yards is = how many sq ft?
Dahasolnce [82]

Answer:

9 sq ft

Step-by-step explanation:

6 0
3 years ago
Blanca's house is assessed at $149,000 and her property tax rate is 2.3%. How much is her annual property taxes?
mrs_skeptik [129]
$3,427 because you take 149000 and multiply by .023 for 2.3%.
5 0
3 years ago
Read 2 more answers
Y is directly related to x and y is 81 when x is 27 the constant of.variation is
suter [353]

Answer:

The constant of variation is 3

Step-by-step explanation:

Given.

y=81

x=27

And y is directly related to x

y ∝ x

Here k is constant of variation

y=kx

k=\frac{y}{x}--------------(1)

Put the y and x value in equation 1.

k=\frac{81}{27}

k=3

So, the constant of variation is 3.

6 0
3 years ago
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