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3 years ago

Which pair shows equivalent expressions?

Mathematics

1 answer:

maria [59]3 years ago

7 0

The equivalent expression is A

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A company invests a total of $40 comma 000 of surplus funds at two annual rates of interest: 5% and 6one half %. It wishes a

vampirchik [111]

Suppose the company invests x of their surplus in the 5% rate (and thus 40000-x has 6.5%). Then we have that 5%*x+(40000-x)6.5%=6.25%*40000.
We have that solving this, 5%* x+40000*6.5%-6.5%*x =6.25%* 40000 Accumulating terms, 1.5%*x=0.25%*40000 x=40000/6= 6666.67$. We see that if we invest 6666.67$ at 5%, we get exactly the given rate. If we invest more, we obviously get less. Hence, we have that the company has to invest at 6.5% more than 40000-6666.67=33333.33$

8 0

3 years ago

Can someone help me please

Tomtit [17]

It would affect the mean the most

6 0

3 years ago

Please help!! worth 20 points !!

MaRussiya [10]

Answer:

So you have it right. 15 5/7 in

Step-by-step explanation:

C = πd

All you can do now is substitute what has been given

Diameter = 5

Pi = $\frac{22}{7}$

C = $\frac{22}{7}$ * 5

Multiply from across

22 * 5 = 110 ( numerator)

7 * 1 = 7 (denominator)

110/7 (improper fraction) = 15.71428571428571 ( as a decimal) = 15 5/7 ( as a mixed number)

Ik its 15 5/7 because 1. the 15 wont change, and 2 5/7 = 0.7142857142857143, which is the same one as above

Hope this helped!

Have a supercalifragilisticexpialidocious day!

4 0

3 years ago

Find the solution of this system of equations:

Evgen [1.6K]

Answer:

y=-3.667

Step-by-step explanation:

-4(10y-59)+10y=86

30y+196=86

30y=-110

y=-3.667

6 0

3 years ago

Kylie bought t T-shirts. The shirts came in 10 packages. Write an expression that shows how

Gekata [30.6K]

Answer:

10n=

Step-by-step explanation:

4 0

3 years ago