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g100num [7]
3 years ago
10

PLEASE HELP WILL MARK BRAINLIEST!!!!

Mathematics
2 answers:
iragen [17]3 years ago
8 0

Answer:

y = -5x + 20

Step-by-step explanation:

(2,10) and (3,5)

Slope = (y-y)/(x-x)

(10-5)/(2-3) = 5/-1 = -5

y-intercept (any point) = y - (slope times x)

y-intercept = 5 - (-5)(3) = 5 + 15 = 20

Lyrx [107]3 years ago
5 0

Answer:

y = -5x + 20

Step-by-step explanation:

Lets start with the first given values for x and y

(2,10)

Lets try out the first equation

y = 5x + 4

y = 5(2) + 4

y = 14

This equation wouldn't work because the y value is not 10 when the x value is 2

y = 5x + 20

y = 5(2) + 20

y = 30

This equation doesn't work either

y = -5x + 20

y = -5(2) + 20

y = -10 + 20

y = 10

This would be the correct equation since your y value is 10 when the x value is 2

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henry is mixing concrete. to make concrete he needs to mix cement, sand and gravel in the ratio 5 : 4 : 1 by weight. henry needs
MaRussiya [10]

Answer:

cement by 5 Kg

Step-by-step explanation:

add the parts of the ratio, 5 + 4 + 1 = 10 parts

Divide the quantity of concrete by 10 to find the value of one part of the ratio.

110Kg ÷ 10 = 11Kg ← value of 1 part of ratio , thus

5 parts = 5 × 11Kg = 55Kg ← cement required

4 parts = 4 × 11Kg = 44Kg  ← sand required

1 part = 11Kg ← gravel required

He requires 55Kg of concrete but only has 50Kg.

He requires 44Kg of sand and has 55Kg

He requires 11Kg of gravel and has 15Kg

Thus he is 5Kg short of cement.

7 0
3 years ago
A peach weighs 65 grams. If you buy 10 peaches and they sell for $5.50 per kilogram, how much will they cost? Please helpppppp!!
zzz [600]

Answer:

$3.57 per kilogram

Step-by-step explanation:

65 grams = 0.065 kilograms = weight of a single peach

0.65 = weight of 10 peaches

0.65 x $5.50 = cost of 10 peaches = 3.575

6 0
3 years ago
The graph translated horizontally two units right, vertically four units down and reflected across x-axis from its parent functi
Keith_Richards [23]

Parent Function:              f(x) = x^2

Right 2 units:                    f(x) = (x^2 - 2)

Down 4 units:                   f(x) = (x^2 - 2) - 4

Reflection over x-axis:     f(x) = - (x^2 -2) + 4

Answer:                            f(x) = - (x^2 -2) + 4

3 0
3 years ago
Find the common ratio of the geometric sequence-15,-30,-60
Law Incorporation [45]

Answer:

2

Step-by-step explanation:

A geometric sequence means that each term is the previous term multiplied by a certain common ratio. For instance, here, -30 is 2 times -15, and -60 is 2 times -30. Hope this helps!

6 0
3 years ago
I WILL GIVE BRAINLIEST!!!!<br><br> whose bored!!!!<br><br> 2+2=4
DENIUS [597]

Answer:

Yes and no, there are many different ways to put it ;)

8 0
3 years ago
Read 2 more answers
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