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3 years ago

9

What is the sum of -1/2 + 2/3?

2 answers:

alekssr [168]3 years ago

6 0

0.16666666666 is the sum of your question

satela [25.4K]3 years ago

6 0

the answer is 1/6 because you have to convert them to have a common denominator, so you would have -3/6+ 4/6

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There are 52 weeks in a year. The plant runs for 12 months. How many weeks let when 52 weeks are divided by 12 months?

xxMikexx [17]

Step-by-step explanation:

in one month , it runs for 52/12 weeks

that is 4 weeks

3 0

2 years ago

Solve the system of equations. y=6x+5 y=8x-7 what does x and y equal?

My name is Ann [436]

8x-7 = 6x+ 5
2x = 12
X = 6, plug into equation
Y= 6(6) + 5
Y = 41

7 0

2 years ago

Is 15 a factor or a multiple

Nady [450]

Answer:

Factors of 15 include 3 and 5; multiples of 15 include 30, 45, 60, etc.

Step-by-step explanation:

Factors and multiples are different things. But they both involve multiplication. Factors are what we can multiply to get the number. Multiples are what we get after multiplying the number by an integer

5 0

2 years ago

The sum of 2 fractions is 5/6. Their difference is 1/2. Their least common denominator is 6. The denominator of one is twice the

valentinak56 [21]

Answer:

Step-by-step explanation:

Alright, lets get started.

Suppose the first fraction is : $\frac{a}{b}$

Suppose the second fraction is : $\frac{c}{d}$

The sum of both fraction is given as : $\frac{5}{6}$

$\frac{a}{b}+\frac{c}{d}=\frac{5}{6}$ .......................equation (1)

The difference of both fraction is given as : $\frac{1}{2}$

$\frac{a}{b}-\frac{c}{d}=\frac{1}{2}$ .........................equation (2)

Adding equation (1) and equation (2)

$\frac{c}{d} \ will \ be \ cancelled$

$\frac{2a}{b}=\frac{5}{6}+\frac{1}{2}$

making common denominator

$\frac{2a}{b}=\frac{5}{6}+ \frac{3}{6}$

$\frac{2a}{b}=\frac{8}{6}$

Hence,

$\frac{a}{b}=\frac{2}{3}$

Plugging the value of $\frac{a}{b}$ in equation (1)

$\frac{2}{3}+\frac{c}{d}=\frac{5}{6}$

Subtracting $\frac{2}{3}$ in both sides

$\frac{c}{d}=\frac{5}{6}-\frac{2}{3}$

$\frac{c}{d}=\frac{1}{6}$

Hence both fractions are $\frac{2}{3} \ and \ \frac{1}{6}$ ...................Answer

Hope it will help :)

7 0

2 years ago

A construction contractor used the equation Y=KX to determine it would cost him $4.90 to buy 2 boxes of nails. How much in each

dem82 [27]

Data: (adopting)
Y = <span>$4.90
K = 2 boxes
x = ? (how much in each box)

Solving:
</span> $Y = K*X$
$4.90 = 2*X$
$4.90 = 2X$
$2X = 4.90$
$X = \frac{4.90}{2}$
$\boxed{\boxed{X = \$\:2.45\:each\:box}}\end{array}}\qquad\quad\checkmark$ <span>
</span>

8 0

2 years ago