2 years ago

Which of the following is the standard form of the equation 5x2 - 20x = 15?

Mathematics

1 answer:

Finger [1]2 years ago

5 0

x= +7 or x=2-7 let me know if you need an explanation <3

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30 pts AWNSER ASAP In 2 hours, Nolan can bake 5 1/2 dozen cookies. What is his unit rate in dozen cookies per hour?

seraphim [82]

Answer:

2 3/4 dozen cookies per hour

Step-by-step explanation:

To find his unit rate per hour, divide 5 1/2 by 2:

5.5/2

= 2.75 or 2 3/4 dozen cookies

So, his unit rate in dozen cookies per hour is 2 3/4

6 0

2 years ago

How do I solve equations with fractions?

ratelena [41]

2y - 3/5 = 1/2

Add 3/5 to both sides.

2y = 1/2 + 3/5

Let's make the two fractions have common denominators.
Multiply 1/2 by 5/5 and 3/5 by 2/2.
1/2 * 5/5 = 5/10
3/5 * 2/2 = 6/10

2y = 5/10 + 6/10

Add the two fractions.

2y = 11/10

Divide both sides by 2.

11/10 ÷ 2
Use the Keep, Change, Flip method.
Keep 11/10, change ÷ to ×, and flip the 2 (reciprocal).
11/10 × 1/2 = 11/20

y = 11/20

4 0

2 years ago

the half-life of a new experimental drug in your bloodstream is 15 hours how long will it take for the drug to Decay to 60% of t

Ierofanga [76]

4 hours? i may be wrong

i did - 60 * 15

seems about right, since 50% would be 7.5 hours?

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2 years ago

Write an equation of the line below.

iVinArrow [24]

(0,-2)

(5,-7)

hope it helps u

5 0

2 years ago

Read 2 more answers

Plzzzzzzzzzzzzzz helpppppppp meeeeeee

zepelin [54]

Y = -3/4x + 6

you write in the y=mx+c form!
m= the slope
c = the y-intercept. (it is the second number of the coordinates)

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2 years ago