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IgorC [24]
3 years ago
13

Find the value of each expression in simplest form. Show all work

Mathematics
1 answer:
Makovka662 [10]3 years ago
3 0

Answer:

Step-by-step explanation:

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Find the sum -0.3 + 25/100
Evgesh-ka [11]

Answer:

-0.05

Step-by-step explanation:

8 0
3 years ago
Which graph best represents the solution to the system of equations shown below? (5 points) y = −4x − 19 y = 2x − 1 A coordinate
Oksana_A [137]

Answer:

Wait wait wait this makes no sense?

Step-by-step explanation:

3 0
2 years ago
An element with mass 130 grams decays by 22% per minute. How much of the element is remaining after 7 minutes, to the nearest 10
shepuryov [24]

22.8 grams of element will be remaining after 7 minutes

Further explanation:

Given

Mass\ of\ element=130g\\Percentage\ of\ reduction=22\%

The element reduces (1-22%) in one minute.

The process will be repeated 7 times for 7 minutes

If we have to calculate the amount of element after 7 minutes

then the total reduction will be: (1-22%)^7

Remaining\ amount=130*(1-22\%)^7\\=130*(1-0.22)^7\\=130*(0.78)^7\\=130*0.18\\=22.84g\\Rounding\ off\ to\ nearest\ tenth\\=22.8g

22.8 grams of element will be remaining after 7 minutes

Keywords: Decay, Percentage

Learn more about percentage at:

  • brainly.com/question/11286417
  • brainly.com/question/11566221

#LearnwithBrainly

6 0
3 years ago
Seven times the difference of x and 4 is -10
Delicious77 [7]

Answer:

7*(x-4)=-10

Step-by-step explanation:

4 0
3 years ago
What is the equation of the line that is parallel to the line 2x − y = 3 and passes through the point (2, −1)?
Ivanshal [37]

Answer:

C. y = 2x − 5

Step-by-step explanation:

Given equation of line

2x − y = 3

rewriting the equation in slope intercept form as answer are given slope intercept form

y = 2x - 3

slope intercept form of equation is

y = mx + c

where m is the slope

c is y intercept

thus

slope for y = 2x - 3 when comparing with y = mx + c is 2

now we know slope of two parallel line is same

thus,

the slope of  line that is parallel to the line 2x − y = 3

is 2

Let the equation of required line be y = mx + c

where m = 2

thus

y = 2x + c is the new required equation

it passes through the point (2, −1)

using y = -1 and x = 2 in y = 2x + c

-1 = 2*2 + c

c = -1 - 4

c = -5

thus,

equation of required line is option c

y = 2x - 5 ----answer

7 0
3 years ago
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