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3 years ago

7th grade math packet

Mathematics

2 answers:

ololo11 [35]3 years ago

6 0

Answer is 11/6
Hope this helps :)

Anvisha [2.4K]3 years ago

6 0

11/6 I think that’s the answer

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Match each variable with what it represents in a sequence formula. 1. r the value of the first term 2. d the value of the nth te

irakobra [83]

Answer:

r is the common ratio (in geometric sequence)

d is the common difference (in arithmetic sequence)

n is the term number

a1 is the value of the first term

an is the value of the nth term

Step-by-step explanation:

arithmetic sequence formula:

an=a1+d(n-1)

geometric sequence formula:

an=a1•(r)^(n-1)

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3 years ago

Preform the operation (answer in a+bi form) (i meaning imaginary number).

grin007 [14]

$(3+\sqrt9)(2-\sqrt{-25})=\\
(3+3)(2-5i)=\\
6(2-5i)=\\
12-30i$

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4 years ago

Suppose that 10 years ago you bought a home for $160,000, paying 10% as a down payment, and financing the rest at 9% interest fo

Goshia [24]

Answer:

Current monthly payment on their existing mortgage would be $1158.66

Step-by-step explanation:

Total cash value = $160,000

Down payment = 10% of 160,000

Down Payment = $16,000

Balance amount = 160,000 - 16,000 = $144,000

Monthly payment formula:

$P=\dfrac{r(PV)}{1-(1+r)^{-n}}$

where,

PV is present value of home, PV=$144,000

r is rate per period , $r=\frac{9}{1200}=0.0075$

n is number of period, n=30x12 = 360

$P=\dfrac{0.0075\times 144000}{1-(1+0.0075)^{-360}}$

$P=\$ 1158.66$

Monthly payment would be same for 30 years.

Thus, Current monthly payment on their existing mortgage would be $1158.66

5 0

3 years ago

9 packages of grape cost $24 how many packages of grapes can you buy for $8

Leto [7]

Ok. First you have to find the unit rate. Since you can buy 9 packages of grapes for $24, then you can get 1 grape package for $2.6667. If you have $8, you can buy 3 packages of grapes.

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4 years ago

Read 2 more answers

Each container will be made of a material that costs $0.0015 per square inch. Explain how to determine the coat of each containe

aksik [14]

Answer:

Find total surface area. Multiply material unit cost by the total surface area.

Step-by-step explanation:

To find the cost of a container, you must first find the total surface area of the container. Then since you are given the unit cost for the material, you multiply the total surface are by the unit cost ($0.0015/in.²).

3 0

2 years ago