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3 years ago

Difference 77/8 -31/4=

Mathematics

2 answers:

ad-work [718]3 years ago

3 0

The answer is 15/8
simplified: 1 7/8

Nutka1998 [239]3 years ago

3 0

You can find this answer by finding a common denominator in both fractions. I highly suggest you multiply. After you do that you add or subtract as needed and simplify as needed. Hope this helped :)

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You have $25.00. You want to buy chocolate for Valentines Day. Each box costs $6.99?Do you have enough money to buy three boxes?

mestny [16]

Answer:

yes and u will have and u will have 0.28 left over

Step-by-step explanation:

25/7=0.28

4 0

3 years ago

Which of the following graphs shows the solution for the inequality. y-4>2(x+2)

Crazy boy [7]

Answer:

Step-by-step explanation:

First, isolate the y:

$y-4>2(x+2)$

$y-4>2x+4$

$y>2x+8$

First, since there is no "equal to", we can ignore B and D since their lines are shaded.

Since the y is greater than, we need to pick the graph that is shaded above the line.

The answer is C as the shaded portion is above the graph and the graph is dotted.

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3 years ago

A parking garage has 6 levels. Each level has 15 rows. Each row has the same number of parking spaces. There are 2,250 parking s

VladimirAG [237]

Answer:

$25$

Equation: $90x=2250$

Step-by-step explanation:

Let parking spaces in each row $=x$

In $1$ level there are $15\ rows$ so total number of parking spaces in 1 level $=15\times x=15x$

There are $6$ level so total number of parking spaces $=6\times 15x=90x$

$90x=2250\\\\x=\frac{2250}{90}\\\\x=25$

4 0

4 years ago

Given two sets of polar coordinates that could be used to play the given point

topjm [15]

Answer: a. (2.5, 300°) and (-2.5, 120°)

b. (4, 270°) and (-4, 90°)

<u>Step-by-step explanation:</u>

Polar coordinates are written as (r, θ) where

r is the radius
θ is the angle

In the first graph, the radius is 2.5 and the angle is 300° --> (2.5, 300°)

You can also list the radius as -2.5 at angle 120° --> (-2.5, 120°)

↓

(300 - 180)

In the second graph, the radius is 4 and the angle is 270° --> (4, 270°)

You can also list the radius as -4 at angle 90° --> (-4, 90°)

↓

(270 - 180)

5 0

3 years ago

Which expression is equivalent to the expression below? StartFraction m + 3 Over m squared minus 16 EndFraction divided by Start

Kamila [148]

Option B: $\frac{1}{(m-4)(m-3)}$ is the correct answer.

Explanation:

The given expression is $\frac{(\frac{m+3}{m^2-16}) }{(\frac{m^2-9}{m+4} )}$

Simplifying the expression, we have,

$\frac{m+3}{m^{2}-16}\times\frac{m+4}{m^2-9}$

Factor the equations, $m^{2}-16\right$ and $m^{2}-9$ ,we get,

$m^{2}-16\right=m^{2}-4^{2}=(m+4)(m-4)$

$m^{2}-9=m^{2}-3^2=(m+3)(m-3)$

Substituting these factored expressions in the above expression, we have,

$\frac{m+3}{(m+4)(m-4)}\times\frac{m+4}{(m+3)(m-3)}$

Cancelling the common terms $m+3$ and $m+4$ , we get,

$\frac{1}{(m-4)(m-3)}$

Thus, the expression equivalent to $\frac{(\frac{m+3}{m^2-16}) }{(\frac{m^2-9}{m+4} )}$ is $\frac{1}{(m-4)(m-3)}$

Hence, Option B is the correct answer.

3 0

3 years ago

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