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3 years ago

Algebra is very hard espc without teacher help - solve for x

Mathematics

1 answer:

ehidna [41]3 years ago

4 0

Answer:

In explanation

Step-by-step explanation:

First, we simplify the parentheses:

$(12x+16)-7x=(10x-20)+6$

Simplify:

$5x+16=10x-14$

Isolate x:

$30=5x$

Divide 5 by both sides

$x=6$

<em>Hope this helped! Have a good day.</em>

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Write the equation. kate has a seashell. Collection. She has 35shells in all. This is five times morethan her brother. How many

Helga [31]

The equation would be 35=5x. ‘x’ is the number of seashells her brother has, and the 5 in front of the x is showing that she has 5 times more than him. to find how many her brother has, divide both sides of the equation by 5 to make the x stand alone. you should then get 7=x, meaning that her brother has 7 shells

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3 years ago

A carpenter has boards of lengths 24, 40, and 48 inches that must be cut into smaller boards of equal length, with no scrap wood

bulgar [2K]

It would be 8 inches, because for this you just have to find the greatest common factor between all three numbers which is 8

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3 years ago

How will the perimeter of the rectangle change if each side is increased by a factor of 10? The perimeter will be 1/10 the origi

goldfiish [28.3K]

Answer:

The perimeter will be 10 times the original.

Step-by-step explanation:

Formula for Perimeter of rectangle is

2l + 2 w. From the diagram shown, the perimeter is 2×6 +2×3 = 12+6 =18cm

If if each side is increased by a factor of 10

Our length becomes 6×10= 60cm

Our width becomes 3×10= 30cm

New perimeter becomes

2×60 + 2×30

= 120+60 = 180cm

New perimeter(180 cm)= 10× original perimeter (18cm)

So The perimeter will be 10 times the original.

4 0

3 years ago

Read 2 more answers

I need help on this please can someone help me with this

hram777 [196]

Answer:

C. 11

Step-by-step explanation:

First, find the value of "x" by solving the first equation. You need to move every other number to the other side of "x". When you move a number, you have to do the opposite operation to both sides.

5x + 6 = 10 The opposite of +6 is -6.

5x + 6 - 6 = 10 - 6 Subtract 6 from both sides

5x = 10 - 6 The "6" on the left cancelled out. Simplify the right side

5x = 4 The opposite of multiply by 5 is divide by 5

5x/5 = 4/5 Divide both sides by 5

x = 4/5 Value of "x"

Substitute the value of "x", which is 4/5, in the "x" for the second equation.

10x + 3

= 10(4/5) + 3 Multiply 10 and 4/5

= $\frac{10*4}{5}$ + 3 Combine into the numerator

= $\frac{40}{5}$ + 3 Divide the top by the bottom

= 8 + 3 Add

= 11 Value of second equation

Therefore the value of 10x + 3 is 11.

4 0

3 years ago

CONVERGENT AND DIVERGENT SERIES PLEASE HELP

drek231 [11]

Answer:

Step-by-step explanation:

We are given a series

We can see that numerators are same

and denominators are

49 , 64 , 81 , .....

so,

7^2 , 8^2 , 9^2

We can write nth term

$a_n=(n+7)^2$

so, we can write as

$\sum _{n=0}^{\infty }\:\frac{1}{\left(n+7\right)^2}$

We can use p-series test

$\frac{1}{n^p}$

we can compare

and we get

$p=2>1$

So, this series is convergent

this is FALSE

5 0

3 years ago