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Olin [163]
3 years ago
14

5x + 3y when x = 3.2 and y = 5​

Mathematics
2 answers:
kicyunya [14]3 years ago
5 0

5(3.2)+3(5)

3.2×5=16

3×5=15

16+15=31

yawa3891 [41]3 years ago
4 0

Answer:

5(3.2)+3(5)= 31

Step-by-step explanation:

When you have a question like that you just plug in the number whenever you have a number that goes to a variable. And then you solve for the answer.

5(3.2)+3(5)

16 + 15

=31

Hope this helps ☝️☝☝

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salantis [7]

Answer:

It depends if business is steady. If they make about 500 a day that is a fair estimate. Make sure that the month you are talking about has 30 days.

3 0
3 years ago
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katrin [286]

Answer:

Step-by-step explanation: so 7 out of 20 .35 right

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8 0
3 years ago
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neonofarm [45]

Answer:

(a+b,c)

Step-by-step explanation:

Note that the midpoint formula is:

(\frac{x_{1} +x_{2}}{2}, \frac{y_{1} +y_{2}}{2})

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(\frac{(2a+2b +0}{2}, \frac{2c+0}{2})\\(\frac{(2(a+b)}{2}, \frac{2c}{2})\\\\(a+b,c)


3 0
3 years ago
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You invested $19,000 in two accounts paying 4% and 8% annual interest, respectively.
saveliy_v [14]

Answer:

$9000 at 4$

and

$10000 at 8%

Step-by-step explanation:

Let's assume that "x" is the amount deposited in the 4% account and "y" is the amount deposited in the 8% account.

Recall the formula for interest as : I= P * R *t

where I is the interest, R is the annual rate of interest and t is the number of years.

Since there are two investments, we need to add both interests at the end of the one year: I1 = x (0.04) (1) = 0.04 x   and   I2 = y (0.08) (1) = 0.08 y

Total Interest = Interest (from the 4% account) + Interest (from the 8% account)

Total Interest = $1160 = 0.04 x +  0.08 y

we also know that the total invested (x + y) adds to $19,000, that is:

$19,000 = x + y

Then we can solve these system of two equations by substitution, for example solving for y in the second equation and using the y substitution in the first equation;

y = 19000 - x

1160 = 0.04 x + 0.08 (19000 - x)

1160 = 0.04 x + 1520 - 0.08 x

0.08 x - 0.04 x = 1520 - 1160

0.04 x = 360

x = 360/0.04 = $9000

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6 0
3 years ago
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Sophie [7]

Answer:

16

Step-by-step explanation:

because it is

6 0
3 years ago
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