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3 years ago

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Mathematics

2 answers:

mestny [16]3 years ago

6 0

Answer:

u have it right it increases by 1:75 per time

Step-by-step explanation:

velikii [3]3 years ago

4 0

Answer:

Step-by-step explanation:

it is A because it is increasing by 1.75 each week

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The Greens want to put an addition on their house 18 months from now. They will need to save $10,620 in order to achieve this go

Elina [12.6K]

Option B would be better, pushing the addition one money would still make them short 930.00

6 0

3 years ago

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Suppose you work for a sporting goods company, and you want to order shipping boxes for bike helmets. Each helmet is already pac

madreJ [45]

Answer: $n^2+6n-135=0$

Step-by-step explanation:

The length, width and height of the smaller box are n inches , n inches and 8 inches respectively,

And, According to the question,

The shipping boxes has 2 inches extra width than that of smaller box and 4 inches extra length than that of smaller box, Also, The height of the shipping box should be the same as the helmet box.

Thus, the Length of the shipping box = (n + 4) inches

Width = (n+2) inches and height = 8 inches

Thus, the volume of the shipping box,

$V = (n+4)\times (n+2)\times 8=(n^2+6n+8)8=8n^2+48n+64$

But, V = 1,144 cubic inches,

⇒ $8n^2+48n+64=1144$

⇒ $n^2+6n+8=143$

⇒ $n^2+6n-135=0$

Which is the required equation that models the volume of the shipping box.

8 0

3 years ago

Gabriel invests $9600 in two different accounts. The first account paid 13 %, the second account paid 6 % in interest. At the en

NeX [460]

Answer:The principal for the first account is $5000

The principal for second account is $4600

Step-by-step explanation:

The formula for simple interest is expressed as

I = PRT/100

Where

P = principal

T = time in years

R = interest rate on the principal.

Let x represent the amount invested in the first account

Let y represent the amount invested in the second account

Gabriel invests $9600 in two different accounts. This means that

x + y = 9600 - - - - - - - -1

For first account, The interest rate is 13%. The duration is one year.

Therefore

P = x

T = 1 year

R = 13%

Therefore

I = (x × 13 × 1)/100

I = 0.13x

For second account, he interest rate is 6%. The duration is one year.

Let y represent the principal for the second account. Therefore

P = y

T = 1 year

R = 6

Therefore

I = (y × 6 × 1)/100

I = 0.06y

At the end of the first year he had earned $926 in interest. This means that

0.13x + 0.06y = 926 - - - - - - - -2

Substituting x = 9600 - y into equation 2, it becomes

0.13(9600 - y) + 0.06y = 926

1248 - 0.13y + 0.06y = 926

- 0.13y + 0.06y = 926 - 1248

- 0.07y = -322

y = - 322/- 0.07 = 4600

x = 9600 - y

x = 9600 - 4600

x = 5000

8 0

4 years ago

Plz help meee answer fast

bazaltina [42]

Answer: 85

Step-by-step explanation:

sorry if this is wrong did it quick. 20+30+35=85v :)

5 0

3 years ago

Help! I don’t understand.

nordsb [41]

Answer:

n exponent 5

Step-by-step explanation:

5 0

3 years ago

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