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True [87]
1 year ago
9

Emma has money into savings accounts. One rate is 8% and the other is 12%. If she has $450 more in the 12% account and the total

interest is $220, how much is invested in each savings account?
Mathematics
1 answer:
dexar [7]1 year ago
6 0

A account 8% B account 12%

A+$450 = B (1)

Ax8% +Bx12%= $220

Ax0.08 + Bx0.12 = 220

Now we replace (1) on B:

Ax0.08 + (A+450)x0.12 = 220

Ax0.08 + Ax0.12 + 54 = 220

Ax0.2 = 166

A= 830.

Now we replace the value of A on equation (1):

830 + 450 = B

B = 1280

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The answer is b. 12
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3 years ago
The parallelogram shown below has an area of 140 units^2. The base is twelve and the side is 10 help this is so hard.
faltersainse [42]

Answer:

height = 11.67 units

Step-by-step explanation:

A parallelogram is a quadrilateral with 2 pairs of parallel sides. This means opposites sides are parallel to each other. Opposite angles and sides are congruent.

From your question the base of the parallelogram is given as 12 units and the sides is 10 units. The area of the parallelogram is given as 140 units². What is left is the height of the parallelogram.

Using the formula for finding the area of a parallelogram, the height can be found.

area of a parallelogram = base × height

base = 12 units

height = ?

area = 140 unit²

area of a parallelogram = base × height

let

h = height

140 = 12h

divide both sides by 12

h = 140/12

h = 11.6666666667 units

height = 11.67 units

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marta [7]

Answer:

Answer B (proportional)

Step-by-step explanation:

The variable y and x are related by the constant of proportionality "6" in the expression

y = 6 x

Such means that if x adopts whatever value, y is always proportional to that x-value, by the multiplicative factor 6.

y is proportional to x via the proportionality constant (it has to be always a multiplicative constant) "6"

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Answer:

54% = 27/50

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97% = 97/100

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Answer: 5 the gcf is 5

Step-by-step explanation:

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