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2 years ago

11

Simplifying by combining like terms. 2 3/4c + 3 1/8c + 7 Please help!:)

2 answers:

Lorico [155]2 years ago

7 0

Answer:

5 7/8 c + 7

Step-by-step explanation:

2 6/8 c + 3 1/8 c + 7

5 7/8 c + 7

Igoryamba2 years ago

3 0

Answer:

5 7/8c + 7

Step-by-step explanation:

2 3/4 c and 3 1/8c can be combined because they both have the same variable.

7 cannot be combined because it does not have a variable.

2 3/4c + 3 1/8c = 5 7/8c

therefore leaving the equation to be simplified from 2 3/4c + 3 1/8c +7 to

5 7/8c+7

Hope this helps! :)

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Which one is the answer? please help!!

Vitek1552 [10]

Answer:

Its 100 percent B

Step-by-step explanation:

first u multiply 3 which will give u 3V on the left side.

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3 years ago

Suppose Miss Roxanne Davenport is 25 years old right now and puts away $1,800 per quarter in an account that returns 6% interest

Lena [83]

We have been given that miss Roxanne is 25 years old and she puts 1800 dollars per quarter that returns 6% interest.

(a) We need to figure out how much will be in the account when she turns 65 years old. When she turns 65 years old, the number of years during which she made deposits would be 40. Since she made quarterly deposits. She made a total of 160 deposits. We can now figure out the final amount in the account using future value of annuity formula.

$A=P\frac{(1+r)^{n}-1}{r}$

We have the values P=1800, r=6/4% = 1.5% = 0.015 and n=160.

Therefore, the amount in the account would be:

$A=1800\frac{(1+0.015)^{160}-1}{0.015}=1179415.39$

Therefore, miss Roxanne will be 1179415.39 dollars in her account when she turns 65 years old.

(b) In this part we need to figure out the total amount she deposited.

The total amount she deposited would be $1800*160=\$288000$ .

(c) We can find the interest earned by subtracting her contribution from the answer of part (a).

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7 0

3 years ago

Read 2 more answers

PLEASE HELP ME!

-Dominant- [34]

Answer:

a/8 = b/15

Step-by-step explanation:

a/b = 8/15 -- divide both side by 8 and multiple both side by b

a/8 = b/15

6 0

3 years ago

Sanjay graphs a quadratic function that has x-intercepts of –3 and 7. Which functions could he have graphed?

kykrilka [37]

we will select each options and find zeros

(a)

$g(x)=x^2-4x-21$

for finding x-intercept , we can set g(x)=0

and then we can solve for x

$g(x)=x^2-4x-21=0$

now, we can factor it

$(x-7)(x+3)=0$

we get

$x=7,x=-3$

so, this is TRUE

(b)

$g(x)=(x-3)(x+7)$

we can set it to 0

and then we can solve for x

$g(x)=(x-3)(x+7)=0$

we get

$x=3,x=-7$

so, this is FALSE

(c)

$g(x)=3x^2-12x-63$

we can set it to 0

and then we can solve for x

$g(x)=3x^2-12x-63 =0$

$3(x^2-4x-21) =0$

$3(x-7)(x+3) =0$

$x=-3,x=7$

so, this is TRUE

(d)

$g(x)=-(x+3)(x-7)$

now, we can set it to 0

and then we can solve for x

$g(x)=-(x+3)(x-7)=0$

$x=-3,x=7$

so, this is TRUE

(e)

we have

$g(x)=x^2+4x-21$

now, we can set it to 0

and then we can solve for x

$g(x)=x^2+4x-21=0$

$(x+7)(x-3)=0$

$x=-7,x=3$

so, this is FALSE

5 0

3 years ago

Read 2 more answers

A parallelogram has vertices E(-8,3), F(2,-2), G(-1,3), and H(-5,-2). What are the coordinates of the midpoint of each diagonal?

d1i1m1o1n [39]

Hello,
Please, see the attached file.
Thanks.

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3 years ago