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4 years ago

Adding integers 7th grade

Mathematics

1 answer:

dmitriy555 [2]4 years ago

7 0

Answer:

Integers are a series of positive and negative numbers. When adding such numbers students have to pay attention to the sign that precedes the numbers in the equation. Generally, adding a value to a negative value is like subtracting the negative value from the positive one.

Step-by-step explanation:

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Pleaseee I needed the answerrr now

loris [4]

Step-by-step explanation:

Given,

a=3,b=2,c=5

a)a(b+c)

=3(2+5)

=3×7

=21.

B)2ac^2

=2×3×(5)^2

=6×25

=150

5 0

3 years ago

Use the following work shown below to answer the following question.

zysi [14]

Answer:

$\frac{3 + \sqrt{3x} }{3 - x}$

Step-by-step explanation:

You can use the work they gave you and continue from there:

$\frac{\sqrt{3}(\sqrt{3}) + \sqrt{3}(\sqrt{x}) }{(\sqrt{3}) ^{2} - (\sqrt{x} )^{2} }$

First, simplify the numerator:

$\frac{3 + \sqrt{3x} }{(\sqrt{3}) ^{2} - (\sqrt{x}) ^{2} }$

Finally, simplify the denominator:

$\frac{3 + \sqrt{3x} }{3 - x}$

3 0

4 years ago

Use the formula for compound amount:$14,800 at 6% compounded semiannually for 4 years

GalinKa [24]

SOLUTION

Given the question in the question tab, the following are the solution steps to answer the question.

STEP 1: Write the formula for calculating compound amount

$A=P(1+\frac{r}{n})^{nt}$

where

A = final compounded amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

STEP 2: Write the given data

Semiannually means that n will be 2

$P=14,800,r=\frac{6}{100}=0.06,n=2,t=4$

STEP 3: Calculate the compound amount

$\begin{gathered} A=14800(1+\frac{0.06}{2})^{2\times4}\Rightarrow A=14800(1+0.03)^{2\times4} \\ A=14800(1.03)^8 \\ A=14800\times1.266770081 \\ A=\text{\$}18,748.1972 \end{gathered}$

Hence, the compounded amount after 4 years is $18,748.1972

6 0

1 year ago

Please help on this equation: 7s+20=4s-13. and please if you can, show your work. Thank You!

jonny [76]

7s + 20 = 4s -13
7s - 4s = -13 -20
3s = -33
s = -33/3
s = -11

6 0

3 years ago

Sean bought 68 3/4 inches of rope . How many 15-inches ropes can he make from it

choli [55]

Length of rope bought by Sean = 68 3/4 inches
   = 275/4 inches
Then
The number of 15 inch rope that can be made by Sean = (275/4)/15
   = 275/(4 * 15)
   = 275/60
   = 4.58
So we can see from the above deduction that Sean can make 4 complete 15 inches ropes and there will be 0.58 inches of rope excess. <span>I hope the procedure and the method of solving is absolutely clear to you. This is the easiest way to get to the solution for such problems.</span>

6 0

3 years ago

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