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4 years ago

Can you explain how to work 7x+3x+5

Mathematics

1 answer:

Vsevolod [243]4 years ago

5 0

Answer:

the answer is 21x+5

Step-by-step explanation:

because there are 2 x and if you multiply 7x and 3x it will be 21 than you put the x, so 21x And then add the +5 so it Will be 21x+5

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A decreased by 20% and then increased by 20% express using algebra<br> asapppppp

Ket [755]

Answer:

96%

Step-by-step explanation:

assume the whole number is x

the first thing is decreasing by 20 %

x - 20%x = 80% x

then now the 80%x is the whole number

now It's the turn of increasing

80%x + 20% * (80% x) = 80%x + 16%x = 96% x

I hope this is hlepful to you !!!!

Feel free to ask me in the comments

6 0

3 years ago

Find an upper bound and a lower bound for the zeros of the following polynomial function: h(x)=x^4+2x^3-11x^2-14x+24

storchak [24]

Https://www.tiger-algebra.com/drill/x~4-2x~3-13x~2_14x_24=0/

I hope this helps. it has the steps and explanations.

8 0

3 years ago

This is for my lil sister

Bumek [7]

Answer: yes

Step-by-step explanation:

3 0

3 years ago

A circle has a central angle measuring 3pi/4 radians that intersects an arc of length 45 in. What is the length of the radius of

Klio2033 [76]

Answer: The radius of the circle is 19.1 inches.

The length l of an arc corresponding to a central angle x (in radians) is:

$l = x\cdot r$

Given the values for l and x:

$45 = \frac{3}{4}\pi\cdot r\\\implies r = \frac{4}{3\pi}45=\frac{60}{\pi}\approx\frac{60}{3.14}\approx 19.1$

The above is in inches.

5 0

3 years ago

Dr Leonard Bernstein owner of software solving inc determines that he must mark up the software he sell to clients by 60% of sel

ElenaW [278]

Answer:

The right solution is "$1,920,000".

Step-by-step explanation:

Given:

Project cost,

= $1200000

Dr. Leonard sells by

= 60%,

The mark up value will be:

= $\frac{1200000\times 60}{100}$

= $720,000$ ($)

hence,

The selling price he should put with the bank will be:

= $Project \ cost+Mark \ up \ value$

= $1200000+720000$

= $1,920,000$ ($)

5 0

3 years ago