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tangare [24]
3 years ago
15

Select the correct answer from each drop-down menu.

Mathematics
1 answer:
erik [133]3 years ago
7 0

Answer: she invested $2500 at the rate of 10%.

she invested $1500 at the rate of 6%.

Step-by-step explanation:

Lisa invests $x in bond A and $y in bond B.

Lisa invests $4,000 in two types of bonds, bond A and bond B. This means that

x + y = 4000

Bond A offers a 10% return, and bond B offers a 6% return. Therefore,

Interest on bond A is 0.1x

Interest on bond B is 0.06y

Her total return on the investment is $340. It means that

0.1x + 0.06y = 340

Therefore, The system of linear equations defining the situation is

x + y = 4000

0.1x + 0.06y = 340 - - - - - - - - - - -1

Substituting x = 4000 - y into equation 1, it becomes

0.1(4000 - y) + 0.06y = 340

400 - 0.1y + 0.06y = 340

- 0.1y + 0.06y = 340 - 400

- 0.04y = - 60

y = - 60/ - 0.04

y = 1500

x = 4000 - 1500

x = 2500

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Answer:

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3 years ago
Helpp!!!
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9514 1404 393

Answer:

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Step-by-step explanation:

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Novay_Z [31]
(4,-3) I believe- I got it bc x1 is 3 away from x2 and same with y1 and y2
5 0
3 years ago
How would you know the answer (important)
SSSSS [86.1K]

Answer:

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7 0
2 years ago
5a/5a+5 x 10a +10/10​
DIA [1.3K]

Answer: 50a+2

Step-by-step explanation:

1. Simplify 5a5a\​5a​​5a​​ to 1.

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2.Simplify 5×10a to 50a.

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3.Cancel 10.

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4. Collect like terms.

50a+(1+1)

5. Simplify.

50a+2

6 0
3 years ago
Read 2 more answers
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