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2 years ago

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two investments earn an annual income of $645. an investment earns an annual simple interest rate of 7.7%, and the other investm

ent earns an annual simple interest rate of 6.9%. the total amount invested is $9000. how much is invested in each account?

1 answer:

Andreas93 [3]2 years ago

6 0

In how many months or years if just one month a little under 3000 each

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Estimate the circumference of a circle that has a radius of 11 m simplify it.

Zanzabum

ANSWER

$C=22\pi \: m$

EXPLANATION

The circumference of a circle is calculated using the formula:

$C=2\pi \: r$

where r=11 meters is the radius of the circle.

Let us substitute the radius into the formula to obtain,

$C=2\pi \: \times 11$

This simplifies to:

$C=22\pi$

When we substitute

$\pi = 3.14$

We get

$C=22(3.14) = 69.08m$

to the nearest hundredth.

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2 years ago

there are 125 vehicles in a car dealership's lot. at least 88 of them are hybrid vehicles. write solve an inequality that descri

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Answer:

it is 37.

Step-by-step explanation:

125 - 88 is 37

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2 years ago

1: Explain Why (4,1) is not a solution to the equation y=3x+1

guapka [62]

1. (4,1) is not a solution because when u sub it into the equation, it does not come out correct. It would be correct if it was (1,4).

2. C = 2.50d.....where C is the cost and d is the number of drinks bought. And if u pick any number for d, then u can solve for the cost (C).

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3 years ago

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g Recall the method used to obtain a confidence interval for the difference between two population means for matched samples. (a

Dovator [93]

Answer:

Step-by-step explanation:

Population 1: 11, 7, 9, 12, 13, 15, 15

Population 2: 6, 6, 4, 5, 8, 13, 12

Mean = sum of terms/number of terms

For population 1,

number of terms = 7

Mean = (11 + 7 + 9 + 12 + 13 + 15 + 15)/7 = 82/7 = 11.7

For population 2,

Number of terms = 7

Mean = (6 + 6 + 4 + 5 + 8 + 13 + 12)/7 = 7.71

The difference value for each element is

(11 + 7 + 9 + 12 + 13 + 15 + 15) - (6 + 6 + 4 + 5 + 8 + 13 + 12) = (5, 1, 5, 7, 5, 2, 3)

The difference between the two means is

Mean of population 1 - mean of population 2

Difference = 11.7 - 7.71 = 3.99

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2 years ago

. A recipe for cookies calls for 2/3 of a cup of sugar per batch of cookies. Elena used 5 and 1/3 cups of sugar to make multiple

Cerrena [4.2K]

Answer: 8 batches
Step-by-step explanation:
To get the number of batches she made, we can just use proportion to solve it. But first, we need to convert 5 1/3 to improper fraction
5 1/3 = 16/3
Then we can now use the proportion to solve
2/3 cups = 1 batch
16/3 cups = x (note:5 1/3=16/3)
cross multiply
2/3 × x = 16 /3
2x/ 3 = 16/3
we need to make x the subject of the formula, to do that we will multiply each side of the equation by 3/2
2/3 × 3/2 x = 16/3 × 3/2
6x /6 = 48 / 6
x = 8
Therefore she made 8 batches of cookies.

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2 years ago

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