All categories

3 years ago

(3 3/4)÷(−2 1/2) IM IN A TIME CRUNCH PLEZZZ HALPPPP

Mathematics

2 answers:

Lorico [155]3 years ago

6 0

For this question the answer is -3/2

OLga [1]3 years ago

4 0

Answer:

-1.5

Step-by-step explanation:

You might be interested in

Find the value of 3u-8 given that -7u + 9=2

bulgar [2K]

Answer:

-5

Step-by-step explanation:

-7u+9=2

-7u=2-9

-7u=-7

7u=7

u=7/7

u=1

3(1)-8=3-8=-5

8 0

3 years ago

Read 2 more answers

The capacity of a water can is 24 liters. Peter filled one third of the can. How much does he have to fill now?

joja [24]

24/3=8

Therefore one third of the can is 8 liters.

24-8=16.

Peter has to fill 16 liters.

4 0

2 years ago

Help with quadratic graphs asap!

zlopas [31]

x= -0.25 and 1.25

x = -0.5 and 1.5

x = 0 and 1

x = -0.375 and 1.625

Step-by-step explanation:

Given equation of the curve is

$y = 4x^2 -4x-1$

(i)

First equation $4x^2 -4x-1 =0$

Here y = 0

In x-axis the value of y = 0

The graph cuts the x-axis at(-0.25,0) and (1.25,0)

So, x= -0.25 and 1.25

(ii)

$4x^2 -4x-1 =2$

here y = 2

The line y= 2 cuts the curve at (-0.5,2) and (1.5,2)

So, x = -0.5 and 1.5

Given equation of the curve is

$y= 3x^2-3x -1$

(i)

$3x^2-3x +2 =2$

$\Leftrightarrow 3x^2-3x -1 = -1$

Here y = -1

The line y = -1 cuts the curve at (0,-1) and (1,-1)

So x = 0 and 1

(ii)

$3x^2-3x -1 =x+1$

Here y = x+1

The line y -x =1 cuts the curve at (-0.375,0.5) and (1.625,2).

So x = -0.375 and 1.625

3 0

3 years ago

Add fractions and simplify the answer 1/2 + 2/3

IrinaVladis [17]

$\frac{1}{2} +\frac{2}{3} =\\\\ \frac{1\times 3}{2\times3} + \frac{2\times2}{3\times2} =\\\\\frac{3}{6} +\frac{4}{6}=\\\\\frac{7}{6} =\\\\ 1\frac{1}{6}\\\\ \frac{1}{2} +\frac{2}{3} =\boxed{\bf{\frac{7}{6} = 1\frac{1}{6}}}$

7 0

3 years ago

Read 2 more answers

The profit function p(x) of a tour operator is modeled by p(x) = −2x^2 + 700x − 10000, where x is the average number of tours he

pav-90 [236]

Answer:

Range of the average number of tours is between 150 and 200 including 150 and 200.

Step-by-step explanation:

Given:

The profit function is modeled as:

$p(x)=-2x^2+700x-10000$

The profit is at least $50,000.

So, as per question:

$p(x)\geq50000\\-2x^2 + 700x-10000\geq 50000\\-2x^2+700x-10000-50000\geq 0\\-2x^2+700x-60000\geq 0\\\\\textrm{Dividing by 2 on both sides, we get}\\\\-x^2+350x-30000\geq 0$

Now, rewriting the above inequality in terms of its factors, we get:

$-1(x-150)(x-200)\geq 0\\(x-150)(x-200)\leq 0$

Now,

$x0\\x>200,(x-150)(x-200)>0\\For\ 150\leq x\leq200,(x-150)(x-200)\leq 0\\\therefore x=[150,200]$

Therefore, the range of the average number of tours he must arrange per day to earn a monthly profit of at least $50,000 is between 150 and 200 including 150 and 200.

7 0

3 years ago