All categories

3 years ago

Please solve. (1 1/2 x 3 3/4) - ( 2 3/5 / 1 1/2)

Mathematics

2 answers:

ale4655 [162]3 years ago

7 0

First convert the mixed numbers to improper fractions

= (3/2 * 15/4) - (13/5 * 3/2)

= 45/8 - 39/10

= 225/40 - 156/40

= 69/40

= 1 29/40 Answer

Nostrana [21]3 years ago

5 0

For that answer i got 3 -2/120 but I'm not sure about it

You might be interested in

Please Help I Will Mark Brainly.

Evgesh-ka [11]

Answer:

-1

675

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

60 cars to 20 cars indenify percent of change

Margaret [11]

Answer: -66.67%, but if the answer is supposed to positive then the answer is 66.67%.

<em>* Hopefully this helps:) </em>

7 0

2 years ago

2v^2-12 =-12v <br> Would really appreciate it loves❤️

Black_prince [1.1K]

For this case we have the following equation:

$2v ^ 2-12 = -12v$

Rewriting we have:

$2v ^ 2 + 12v-12 = 0$

Dividing by 2 to both sides of the equation:

$v ^ 2 + 6v-6 = 0$

We apply the quadratic formula:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

We have to:

$a = 1\\b = 6\\c = -6$

Substituting:

$x = \frac {-6 \pm \sqrt {6 ^ 2-4 (1) (- 6)}} {2 (1)}\\x = \frac {-6 \pm \sqrt {36 + 24}} {2}\\x = \frac {-6 \pm \sqrt {60}} {2}\\x = \frac {-6 \pm \sqrt {4 * 15}} {2}\\x = \frac {-6 \pm2 \sqrt {15}} {2}$

Thus, we have two roots:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

ANswer:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

7 0

2 years ago

What does 10 = 4y equal to

boyakko [2]

69 ghcfhhggghjjohufdhhdjc

7 0

2 years ago

Read 2 more answers

What is the value of a?

Luda [366]

Answer:

a = 62

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees

a + 47+71 = 180

Combine like terms

a +118 = 180

Subtract 118 from each side

a+118-118=180-118

a =62

7 0

3 years ago