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2 years ago

_3x_13 =_7x+15 what is the an

Mathematics

1 answer:

Tema [17]2 years ago

3 0

Answer:

Step-by-step explanation:

_3x_13 =_7x+15 what is the anSWER?

assuming that the underscore is a minus and you are looking for the x value.

-3x - 13 = -7 + 15

-3x = -7 + 15 + 13

-3x = 8 + 13

-3x = 21

x = -7

---------------

check

-3 * (-7) - 13 = -7 + 15

21 - 13 = 8

8 = 8

the answer is good

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Find the complete factored form of polynomial : 32m^3 n^4 + 20mn^2

Dimas [21]

Answer:

$\boxed{\bold{4mn^2\left(8m^2n^2+5\right)}}$

Step-by-step explanation:

Apply exponent rule: $\bold{a^{b+c}=a^ba^c}$

$\bold{m^3n^4=mm^2n^2n^2}$

= $\bold{32mm^2n^2n^2+20mn^2}$

Rewrite 20 as $\bold{5\cdot \:4}$

Rewrite 32 as $\bold{8\cdot \:4}$

= $\bold{8\cdot \:4mm^2n^2n^2+5\cdot \:4mn^2}$

Factor out common term $\bold{4mn^2}$

= $\bold{4mn^2\left(8m^2n^2+5\right)}$

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7 0

3 years ago

What is 4/5 of 45 equle

Goryan [66]

$\frac{4}{5} \ of \ 45= \frac{4}{5} \times 45=4 \times \frac{45}{5}=4 \times 9=36$

4/5 of 45 equals 36.

5 0

4 years ago

Read 2 more answers

a woman put $580 into a savings account for one year. the rate of interest on the account was 61 1/2%. how much was the interest

kogti [31]

The amount of interest earned from a specific investment can be calculated by multiplying the principal amount with the decimal equivalent of the given percentage or interest rate. That is,

I = P x i

Substituting the known values,

I = ($580)(0.615)

I = $356.7

Answer: $356.7

4 0

3 years ago

Lance has 3 time as many pencils as Nick, and they have 84 pencils together. How many pencils does each of them have?

Rufina [12.5K]

Answer:

21 pencils for Nick and 63 pencils for Lance

Step-by-step explanation:

Lance is said to have 3 times the pencils Nick has.
Let's keep the number of pencils Nick has as x.
If Nick has x pencils that means Lance has 3x pencils.
The total number of pencils present is 84.

Now let's make an equation out of the information above:

3x + x = 84

Now solve for x.

3x + x = 84

4x = 84

x = 84/4

x = 21

So Nick has 21 pencils

Now for Lance:

3 * (21) = 63

So Lance has 63 pencils

63 + 21 = 84 pencils

8 0

3 years ago

NO LINKS!!! PLEASE HELP!!

crimeas [40]

Answer:

stay calm

Step-by-step explanation:

stay calm

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3 years ago

_3x_13 =_7x+15 what is the an​

_3x_13 =_7x+15 what is the an