Which statement best describes the events in Group 1?<br> PLEASE HELP ME IM BEGGINGG

Find the sum (3/7m-3+4n)+(2/7m-2m+6)

aleksley [76]

Answer:

(5/7)m + 2n + 3

Step-by-step explanation:

Rewrite 3/7m as (3/7)m for added clarity, also 2/7m as (2/7)m.

Adding (3/7)m and (2/7)m results in (5/7)m.

Next, combine -3 and 6, which yields 3.

I expected that there'd be only one term in m in both quantities. (3/7)m - 3 + 4n does have only one term, but (2/7)m - 2m + 6) seems to have two m terms. I will assume that you actually meant (2/7)m - 2n + 6).

Combining like terms, we get (5/7)m + 3 + 4n - 2n, or

(5/7)m + 2n + 3

4 0

3 years ago

3. As a fundraiser the school has a pie eating contest. Matt eats 2.75 pies in 300 seconds. b. Use place value, multiplication w

sweet-ann [11.9K]

Answer:

Using equivalent fractions, the time Matt takes to eat 1 pie is 1200/11 which is the same as $109\frac{1}{11}$ seconds

Step-by-step explanation:

The number of pies Matt eats = 2.75 pies

The time duration Matt eats 2.75 pies = 300 seconds

Mathematically, the time duration for Matt to eat one pie is given as follows;

The time to eat 2.75 pies = 300 seconds

Dividing both sides of the equation by 2.75 gives;

The time to eat 2.75/2.75 pie = 300/2.75 seconds

2.75/2.75 = 1, therefore, we have;

The time to eat 1 pie = 300/2.75 seconds

The equivalent fraction of 3000/2.75 = 1200/11

Therefore;

The time Matt takes to eat 1 pie = 1200/11 seconds

6 0

2 years ago

Solve for x: 0= 2y^2-8y-10

Nutka1998 [239]

Answer:

x=5, -1

Step-by-step explanation:

I think you mean 2x^2-8x-10=0

2x^2-8x-10=0

Factor out a 2 (0/2 is still 0)

2(x^2-4x-5)=0

Divide by 2

x^2-4x-5=0

Find something that MULTIPLIES to get -5 and ADDS up to get -4, then factor

(x-5)(x+1)=0

Make each set =0

x-5=0

x+1=0

x=5, -1

5 0

2 years ago

A rope is cut into three pleces. The lengths are given as 2ab(a - b), 3^2(a + 2b), and b^2 (2a - b).

gladu [14]

Answer:

Step-by-step explanation:

Hello, please consider the following.

$2ab(a-b)+3a^2(a+2b)+b^2(2a-b)\\\\=2a^2b-2ab^2+3a^3+6a^2b+2ab^2-b^3\\\\=\boxed{3a^3-b^3+8a^2b}$

For a = 2, b = 3 the total is

$3\cdot 2^3-3^3+8\cdot 2^2 \cdot 3\\\\=3*8-27+96\\\\=24-27+96\\\\=\boxed{93}$

Thank you

6 0

2 years ago

Read 2 more answers

If a rectangle is (x+2) wide and (x-7) in length, the area of the rectangle is?

Maru [420]

Answer: x² - 5x - 14

Step-by-step explanation: Start with the formula for the area of a rectangle.

Area = length x width

To multiply these two binomials, let's use the F.O.I.L. method.

The product of the first terms is x².

The product of the outer terms is -7x.

The product of the inner terms is 2x.

The product of the last terms is -14.

So we have x² - 7x + 2x - 14 which simplifies to x² - 5x - 14.

3 0

3 years ago

Which statement best describes the events in Group 1? PLEASE HELP ME IM BEGGINGG