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Nadya [2.5K]
2 years ago
8

Help please!!!!!!!!!!!!!!!!!!!!!!!!11111

Mathematics
1 answer:
yaroslaw [1]2 years ago
8 0
1/3

Hope this helps! :)

(I’m actually doing IXL too lol)
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Select all the equations that are true when x = 4
V125BC [204]

Answer:

B and E

Step-by-step explanation:

A. 8x = 2

8(4) = 2

32 = 2

B. 19 + x = 23

19 + 4 = 23

23 = 23

C. 40/x = 5

40/4 = 5

10 = 5

D. -3x = 12

-3(4) = 12

-12 = 12

E. x - x - x - x = -8

4 - 4 - 4 - 4 = -8

0 - 4 - 4 = -8

-4 - 4 = -8

-4 + (-4) = -8

-8 = -8

7 0
3 years ago
What is <img src="https://tex.z-dn.net/?f=%5Cfrac%7B14-7x%7D%7B7%7D" id="TexFormula1" title="\frac{14-7x}{7}" alt="\frac{14-7x}{
BartSMP [9]

Answer:

<h2><u><em>2-x</em></u></h2>

Step-by-step explanation:

(14 - 7x)/7 =

[7(2-x)]/7 =

2-x

4 0
2 years ago
Can anyone help me solve all of this? Please help
disa [49]
They are all pretty easy all you do is multiply the cost by the amount of things you buy. For example number 4 your variables are cost (c) and songs (s). Your equation is c•s so $0.99 • s. 50 songs would be .99 • 50 which is $49.50
6 0
2 years ago
In the late nineteenth century, the scientist Marie Curie performed experiments that led to the discovery of radioactive substan
gtnhenbr [62]

Answer:

Step-by-step explanation:

Half life is the time taken by a radioactive substance to reduce of half of its original size

If the half life of radium is 1600, this means that the original radioactive substance N0 have reduced to N0/2 after 1600 years

if we are given N0 = 1000grams

The amount of the substance that will remain after 1600 years will be N0/2 i.e 1000/2 = 500g

<em>Hence 500 grams of radium will be left after 600years</em>

5 0
3 years ago
Can someone help with this?! The answer choices are 1, 1.3, 1.45, and 1.9!
Zarrin [17]
The answer is 1.45 ......
7 0
3 years ago
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