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Nezavi [6.7K]
3 years ago
10

If a + b = -2a+b=−2 and x + y = -2x+y=−2, what is 4x + 5a + 4y + 5b4x+5a+4y+5b?

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

Answer:your dumb

Step-by-step explanation:

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Peter purchases a baseball card for $150 as an investment. His research tells him that the value of
creativ13 [48]

Answer:

6 years

Step-by-step explanation:

Given

Initial\ Investment = 150

Ratio = double

Required

When will it get to 4000

This question illustrates a geometric progression and will be solved using:

T_n  = ar^{n-1}

In this case;

T_n = 4000

r = double = 2

a = 150

So, we're to solve for n

4000 = 150 * 2^{n - 1}

Divide through by 150

\frac{4000}{150} = 2^{n-1}

26.67= 2^{n-1}

Take Log of both sides

Log26.67= Log2^{n-1}

Apply law of logarithm

Log26.67= ({n-1})Log2

Take Log values

1.42602301569 = (n  - 1) * 0.30102999566

Make n - 1 the subject

n - 1 = \frac{1.42602301569}{0.30102999566}

n - 1 = 4.73714591984

Add 2 to both sides

n = 1 + 4.73714591984

n = 5.73714591984

n = 6 (Approximated)

<em>Hence, it'll take 6 years</em>

7 0
2 years ago
Marci needs to rent a storage unit. She needs to determine the volume of the storage unit to decide if the storage unit is big e
stealth61 [152]

Answer:

Volume = 176ft^3

Step-by-step explanation:

Given

Height = 8

See attachment for base dimension

Required

Determine the volume of the storage unit

From the attachment, we can split the base dimension into two rectangles.

CDEF and ABCG

And the dimensions are:

<u>CDEF</u>

EF = CD = BD - BC = 5 - 2 = 3

ED = FC = FG +AB = 4 + 2 =6

So, the area of CDEF is:

Area = EF * ED

Area = 3 * 6

Area = 18

<u>ABCG</u>

<u></u>AB= GC = 2<u></u>

<u></u>AG = BC = 2<u></u>

<u></u>

<u></u>Area = AB * AG<u></u>

Area = 2 * 2

Area = 4

So, the base area is:

Base\ Area = 18 + 4

Base\ Area = 22

The volume is then calculated as:

Volume = Base\ Area * Height

Volume = 22 * 8

Volume = 176

7 0
3 years ago
24cm long 16cm wide whars the ratio
Andrej [43]
24:16 which is simplified by dividing both sides by 8 so it becomes:
3:2

Hope this helps :)
3 0
3 years ago
david quiere saber cuanto requiere invertir mensualmente para obtener $30,760.08 durante 6 meses si los invierte con el 12% capi
Akimi4 [234]

Answer:

A = $32,652.44

Step-by-step explanation:

Given: Principal (P) = 30,760.08, Annual Rate (R) = 12%, Time (t in years) = 0.5

To find: How much David needs to invest monthly

Formula: A = P(1 + r/n)^n^t

Solution: To find, simply add principal + interest

First, convert R as a percent to r as a decimal

r = R/100

r = 12/100

r = 0.12 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 30,760.08(1 + 0.12/12)(12)(0.5)

A = 30,760.08(1 + 0.01)(6)

A = $32,652.44

Therefore;  

The total amount David will obtain with 30,760.08 for 6 months, 12%is $32,652.44.

4 0
3 years ago
In what place is the digit 1 in the number 607.912<br> hundreds<br> tens<br> tenths<br> hundredths
e-lub [12.9K]

Answer:

tenths.........

Step-by-step explanation:

.....is the answer

6 0
3 years ago
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