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erastova [34]
3 years ago
15

A student bought a book for $7.50 and a pen.the total cost was $9.50.which of the following can be used to find the cost of the

pen?
a)p=7.5b
b)p=9.5b
c)9.50+p=7.50
d)7.50+p=9.50
Mathematics
2 answers:
zloy xaker [14]3 years ago
6 0
D: because if you take 9.50-7.50=2 you would get p=price or the price of the pen.
Hope I helped=)
kondaur [170]3 years ago
6 0
It is answer choice D.

7.50 + p = 9.50
-7.50        -7.50
the 7.50 and 7.50 cancel out and you are left with p=2.50 
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Help plz, no links.
Oksanka [162]

Answer:

1) g = -8 (one solution)

2) b = 0 (infinitely many solutions)

3) w = 5/6 (one solution)

4) c = 0 (infinitely many solutions)

Step-by-step explanation:

1) 1/2g -4 = 2g - 1/2g + 4

1/2g -2g +1/2 g = 8

-g = 8

2) 5.3-5.3 = 2.1b + b - 3.1b

0=0

3) 3/4w+ 3/4w = 10/4 - 5/4

3/2w = 5/4

w = (5/4) / (3/2)

w = 5/6

4) 5.7c + 3.2c - 7.8c - 1.1c = 1.5 - 1.5

0 = 0

7 0
2 years ago
death valley has an elevation of -282 feet to relative to sea level.Explain how to use absolute value to describe the elevation
Vanyuwa [196]
Absolute value is the distance from a value to zero. In this case, it'd be written as   | -282 |. If x = | -282 |, then x = 282
5 0
3 years ago
What is the vertex of the graph of y = 1/3 (x-9)2 + 5 Question 1 options: (9,5) (3,3) (3,5) (-9,5)
svlad2 [7]
ANSWER

The vertex of the graph of
y =  \frac{1}{3}  {(x - 9)}^{2}  + 5
is

(9,5)



EXPLANATION

The vertex form of a parabola is given by

y = a {(x - h)}^{2}  + k

where
V(h,k)
is the vertex of the parabola.


The function given to us is

y =  \frac{1}{3}  {(x - 9)}^{2}  + 5
This is already in the vertex form.


When we compare this to the general vertex form, we have,

a =  \frac{1}{3}

h = 9
and

k = 5


Therefore the vertex of the parabola is

V(9,5)

Hence the correct answer is option A.

7 0
3 years ago
Read 2 more answers
What is the value of x?
Alisiya [41]
The value of x is 3.14
7 0
3 years ago
Read 2 more answers
The Price of a machine depreciates at the rate of ₹1500 per year. If it was bought for ₹15,800, what will be its price after 5 y
saul85 [17]

Answer:

5th year= 9800

Step-by-step explanation:

1st year=15800

2nd=14300

3rd=12800

4th=11300

5th=9800

8 0
2 years ago
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