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gizmo_the_mogwai [7]
4 years ago
11

2/3 + (-5/7) .........

Mathematics
2 answers:
dmitriy555 [2]4 years ago
4 0

Answer:

-1/21

Step-by-step explanation:

2/3 + -5/7

Get a common denominator of 21

2/3 *7/7 = 14/21

-5/7*3/3 = -15/21

14/21 - 15/21 = -1/21

Andru [333]4 years ago
4 0

Answer:

-1/21

Step-by-step explanation:

2/3 + (-5/7)

2/3 - 5/7

Lcm: 21

(2×7 - 5×3)/21

(14 - 15)/21

-1/21

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The two lines below intersect as shown What is the value of x?
Rufina [12.5K]

Answer:

x = 6

Step-by-step explanation:

because we know the lines intersect we also know the 2 angles are vertical meaning they are equal to each other

Knowing the angles are equal to each other you can make the equation

2x + 29 = 9x - 13

then you solve for x in this equation

2x + 29 = 9x - 13

(subtract 2x from both sides)

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(add 13 to both sides)

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6 0
3 years ago
Does anyone know how to answer this?​
Over [174]

Answer:

PQS = 59.5

RQS = 59.5

Step-by-step explanation:

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4 0
3 years ago
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ANSWER ASAP I WILL GIVE BRAINIEST
Vikentia [17]
It is A because the ratio is 2:3
3 0
4 years ago
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(3/1/2 - 9/3/4) / (-2.5)=
Alex73 [517]
<h3>Answer :</h3>

\:  \:  \:

=  \rm \large  \frac{3 \frac{1}{2}  - 9 \frac{3}{4} }{ - 2.5}

\:  \:

= \rm \large  \frac{ \frac{7}{2}  - 9 \frac{3}{4} }{ - 2.5}

\:  \:

=  \rm \large \:  \frac{ \frac{7}{2} -  \frac{39}{4}  }{ - 2.5}

\:  \:

=  \rm \large \:  \frac{ \frac{25}{4} }{ - 2.5}

\:  \:  \:

=  \rm \large \:  \frac{5}{2}

\:  \:  \:

6 0
3 years ago
Can anyone tell me if these answers are right?
k0ka [10]

Answer:

Ummm. 1 & 3 look good double check 2

Step-by-step explanation:

HELPFUL?

8 0
4 years ago
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