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3 years ago

Add One-seventh + 1One-fifth. pls hurry

Mathematics

2 answers:

marishachu [46]3 years ago

8 0

Answer:

12/35

Step-by-step explanation:

1/7 + 1/5

Find a common denominator:

Multiply the top and bottom to get that denominator:

1/7 * 5/5 = 5/35

1/5 * 7/7 = 7/35

Add the numerators:

7+5=12

12/35

Anettt [7]3 years ago

4 0

Answer:

0.14084507042

Step-by-step explanation:

lmk if u want the 1/4 or 5/5 like taht pig

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Y = x2 + 4 y = x + 6

Nataliya [291]

Answer:

X=2

Y=8

Step-by-step explanation:

Since both equations are equal to y we can equal both equations

2x+4=x+6

x=2

y=2(2)+4

y=8

4 0

2 years ago

12. Find three consecutive even integers such that

borishaifa [10]

Answer:

10, 11, 12

Step-by-step explanation:

Hi there!

Let x be equal to the smallest integer.

Let x+1 and x+2 be equal to the consecutive integers.

We're given that:

⇒ smallest integer + 2 × middle integer = 20 + largest integer

Construct an equation:

$(x)+2(x+1)=20+(x+2)$

Combine like terms:

$(x)+2(x+1)=20+(x+2)\\x+2x+2=20+x+2\\3x+2=22+x\\2x=20\\x=10$

Therefore, the smallest integer is 10.

This makes the consecutive integers 11 and 12.

I hope this helps!

6 0

2 years ago

Solve each of the following system of equations by substitution!!! x-5y=-49 y=-2x+1

saul85 [17]

Answer:

(-4,9)

Step-by-step explanation:

substitute the given value for y into the first equation

x-5(-2x+1)=-49

distribute

x+10x-5=-49

add like terms

11x-5=-49

add 5 to both sides

11x=-44

divide both sides by 11

x=-4

now plug x into into the second equation

y=-2(-4)+1

y=8+1

add like terms

y=9

8 0

2 years ago

½(4k + 3r) ÷ 3^1 k = 9 r = 6 show work

vampirchik [111]

Answer:

The solution is given below:

Step-by-step explanation:

$\\ \frac{1}{2} (4k + 3r) \div {3}^{1}$

As we know the value of k and r so the equation will be

$\\ \frac{1}{2} (4 \times 9 + 3 \times 6) \div {3}^{1}$

$\\ = \frac{1}{2} (36 + 18) \div 3$

$\\ = \frac{1}{2} \times 54 \div 3$

$\\ = \frac{1}{2} \times 18$

$\\ = 9$

3 0

2 years ago

Read 2 more answers

Of the 240 available seats for a concert, 63 seats were reserved. What fraction of seats was reserved? Write your answer in simp

Olin [163]

63/240 seats or 21/80
The greatest common denominator is 3, so you would divide both by 3.

6 0

2 years ago