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Anika [276]
3 years ago
9

URGENT PLEASE ANSWER WILL MARK BRAINLIEST FOR THE FIRST RIGHT ANSWER

Mathematics
2 answers:
masha68 [24]3 years ago
7 0

Answer:

1) The rate of change is constant ($$ 2) The line passes through the origin (0, 0). 3) The equation of the direct variation is $$ y =1 x or simply $$

CaHeK987 [17]3 years ago
6 0

Answer:

1) The rate of change is constant ($$ 2) The line passes through the origin (0, 0). 3) The equation of the direct variation is $$ y =1 x or simply $$

Step-by-step explanation:

I know this because I done this last week

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In one full day, a kudzu vine can grow 15 inches in length. How many inches per hour is this?
Rus_ich [418]
1.66666666667 inches per hour
8 0
4 years ago
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One day of the week is selected at random. To the nearest tenth of percent, what is the probability that the chosen day is Satur
andriy [413]

Answer:

C

Step-by-step explanation:

=1/7 X 100

=14.3

I hope this helps a bit

4 0
3 years ago
What is the slope of a line parallel to y=2x+3?
andrey2020 [161]

Answer:

2

Step-by-step explanation:

2 is the slope of y=2x+3 and any line parralel would have the same slope. therefore the parallel slope would be 2

5 0
3 years ago
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A particular metal alloy a has 20% iron and another alloy b contains 60% iron. how many kilograms of each alloy should be combin
Veronika [31]
Let t and s represent the masses of 20% and 60% alloys respectively.

t+s=80, s=80-t

(0.2t+0.6s)/80=0.52  multiply both sides by 80

0.2t+0.6s=41.6, now using s=80-t in this equation gives us:

0.2t+0.6(80-t)=41.6  perform indicated multiplication on left side

0.2t+48-0.6t=41.6  combine like terms on left side

-0.4t+48=41.6  subtract 48 from both sides

-0.4t=-6.4  divide both sides by -0.4

t=16, since s=80-t

s=64

So 16kg of 20% alloy is mixed with 64kg of 60% allow to make 80kg of a 52% alloy.
5 0
4 years ago
Which facts could be applied to simplify this expression? Check all that apply. (-5x-3y)-(-x-3z).
Mademuasel [1]

Answer:

The correct options are 1, 2, 4 and 6.

Step-by-step explanation:

The given expression is

(-5x-3y)-(-x-3z)

To subtract like term subtract like terms, subtract the coefficients, not the variables.

Therefore option 1 is correct.

Like terms are terms that contain the same variable, raised to the same power. For example: 3xy and 5xy, 4x² and 3x².

Therefore, option 2 is correct.

Using distributive property we get

-5x-3y-(-x)-(-3z)

-5x-3y+x+3z

Only combine terms which contain the same variable.

Therefore option 4 is correct.

(-5x+x)-3y+3z

-4x-3y+3z

The simplified expression is -4x-3y+3z. Therefore option 6 is correct.

3 0
3 years ago
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