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salantis [7]
4 years ago
12

Last week, Hazel paid $32 to have 50 reports printed. This week, she paid $57 to have 100 reports printed. Assume the relationsh

ip is linear. Which equation models the relationship between the number of reports, x, and the cost, y?
y = 2x + 68
y=1/2x+7
y=1/2x+34
y = 2x + 34
Mathematics
2 answers:
GenaCL600 [577]4 years ago
6 0
The answer is the second one. Y=1/2x+7
aleksklad [387]4 years ago
5 0
I'm pretty sure it's (1/2×50) +7
and (1/2×100)+7
others don't work.
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I am an even, 3 digit palindrome. (example:464) The product of the digits is 8. What number am I?
Ulleksa [173]

2 x 2 x 2 = 8

so 222 would be an even number


8 0
3 years ago
Write the equation of a line this is parallel to y=0.5x-4 and that passes through the point (9,-6).
Vika [28.1K]

Answer:

y=0.5x-10.5

Step-by-step explanation:

Parallel lines have the same slope, so the slope of the line we need to find is 0.5.

Substituting into point-slope form and converting to slope-intercept form,

y+6=0.5(x-9) \\ \\ y+6=0.5x-4.5 \\ \\ y=0.5x-10.5

3 0
2 years ago
Question 1<br> Solve the equation:<br> 2z - 1 = -15<br> x=<br> Blank 1:
charle [14.2K]

Answer:

<h2>z = - 7</h2>

Step-by-step explanation:

2z - 1 =  - 15

<u>Move -1 to the right side of the equation</u>

2z =  - 15 + 1 \\ 2z =  - 14

<u>Divide both sides by 2</u>

\frac{2z}{2}  =  -  \frac{14}{2}  \\

We have the final answer as

<h3>z = - 7</h3>

Hope this helps you

3 0
3 years ago
Which choice is equivalent to the expression below ?
lys-0071 [83]

The answer is B, 7i.

sqrt(-49)

Pull out an i.

i*sqrt(49)

Take the square root to get 7i.

⭐ Answered by Hyperrspace (Ace) ⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

7 0
3 years ago
The half-life of the radioactive elements unobtanium -41 is 5 seconds. If 48 grams of unobtanium -41 are initially present, how
Igoryamba

Answer:

the remaining mass of unobtanium -41 after a 5 seconds, 10 seconds, 15 seconds and 20 seconds is 24 gr, 12 gr , 5.33 gr and 3 gr respectively

Step-by-step explanation:

the equation that governs the remaining mass m of unobtanium -41 after a time t is

m=m₀*2^(-t/T) , where t is in seconds ,m₀ represents initial mass and T=half-life

Therefore

a) for t=5 s

m=48 gr*2^(-t/5 s) = 48 gr*2^(-5 s/5 s) = 48 gr/2 = 24 gr

b)  for t=10 s

m=48 gr*2^(-t/5 s) = 48 gr*2^(-10 s/5 s) = 48 gr/4 = 12 gr

b)  for t=15 s

m=48 gr*2^(-t/5 s) = 48 gr*2^(-15 s/5 s) = 48 gr/9 = 5.33 gr

b)  for t=20 s

m=48 gr*2^(-t/5 s) = 48 gr*2^(-20 s/5 s) = 48 gr/16 = 3 gr

thus the remaining mass of unobtanium -41 after a 5 seconds, 10 seconds, 15 seconds and 20 seconds is 24 gr, 12 gr , 5.33 gr and 3 gr respectively

8 0
4 years ago
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