3 years ago

Solve for y y-(-5)=-7

2 answers:

7 0

Y - (-5) = -7
---------------------------
Simplify
y + 5 = -7
-------------------------------------
Subtract 5 from each side
y + 5 - 5 = -7 - 5
y = -12
--------------------------------------------
y = -12 is your answer

nataly862011 [7]3 years ago

4 0

So,
y+5=-7
subtract both sides by -5
y=-7-5
y=-12

You might be interested in

Amy earned $93 at work yesterday. She gets paid $8 per hour, plus she received a $45 bonus. Write an equation that can be used t

seropon [69]

93 = 8x + 45.

Have to have 20 characters so sorry for this sentence.

6 0

3 years ago

Read 2 more answers

What is the interest rate?<br><br> A=500(1.0325)^12

saul85 [17]

I think you need to multiply

7 0

3 years ago

Y = 0.5x + 1; if x = 10

Basile [38]

Answer:

if you substitute x for 10 y would equal 6

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

121-a2=0 maths find equation

Aloiza [94]

Answer:

a=121/2

Step-by-step explanation:

121-2a=0

-2a=-121

-2a/-2= -121/-2

a=121/2

7 0

3 years ago

Read 2 more answers

The time needed to complete a final examination in a particular college course is normally distributed with a mean of 79 minutes

bagirrra123 [75]

Answer: a) 0.0088

b) 0.2997

c) 5

Step-by-step explanation:

Given : Mean : $\mu = 79$ minutes

Standard deviation : $\sigma = 8$ minutes

The formula for z-score :

$z=\dfrac{x-\mu}{\sigma}$

a) For x = 60 minutes

$z=\dfrac{60-79}{8}=-2.375$

The p-value = $P(z\leq-2.375)=0.0087745\approx0.0088$

b) For x = 75 minutes

$z=\dfrac{75-79}{8}=-0.5$

The p-value = $P(60$

$=P(-0.5)-P(-2.375)=0.3085-0.0088=0.2997$

c) For x = 90 minutes

$z=\dfrac{90-79}{8}=1.375$

The p-value = $P(z>1.375)=1-P(z$

$=1-0.9154342=0.0845658$

If the number of students in the class = 60 .

Then , the number of students will be unable to complete the exam in the allotted time = $0.0845658\times60=5.073948\approx5$

7 0

3 years ago