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Sholpan [36]
2 years ago
9

Joe bought some CD's and DVD's at the store.

Mathematics
1 answer:
Elina [12.6K]2 years ago
7 0

Answer: x=8 and y=4

Step-by-step explanation:

x+y=12           x=12-y                     x=12-4

14x+22y=200                                x=8

14(12-y)+22y=200

168-14y+22y=200

-168                 -168

-14y+22y=32

8y=32

8y/8=32/8

y=4

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Which statements are true for the functions g(x) = x2 and h(x) = –x2 ? Check all that apply.
Andre45 [30]
If x=0 then they have same value

1st and 2nd options are out

for x=-1
g(-1)=1
h(-1)=-1
3rd is true

4th
false

for all values except zero, g(x)>h(x)


correct ones are

g(x) > h(x) for x = -1.
For positive values of x, g(x) > h(x).
For negative values of x, g(x) > h(x).

6 0
2 years ago
Read 2 more answers
Determine if each statement is always, sometimes, or never true.
Allushta [10]
1.always
2.always
3.never
5 0
2 years ago
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Complete the square to solve the equation below x^2 + 10x - 13 = 17
liberstina [14]

Answer:

See below in exact form

or

2.42, -12.42   to the nearest hundredth.

Step-by-step explanation:

x^2 + 10x - 13 = 17

(x + 5)^2 - 25 - 13 = 17

(x + 5)^2 = 17 + 38 = 55

x + 5 = +/- √55

x =  -5 + √55,  -5 - √55.

6 0
2 years ago
Read 2 more answers
An ice cream shop chose 25 customers at random and asked each to name a favorite flavor. The results are summarized in the pie c
Artemon [7]

Answer: 6 customers

Step-by-step explanation:

From the pie chart,

Given;

Cookies and creams = 24%

Mint chocolate chips = 28%

Straw berry = 20%

Vanilla = 12

Butterscotch = 16

No of customers = 25

Solution

How many of the 25 customers named cookies and cream

= 25 x 24/100

= 25 x 0.24

= 6 customers

6 customers named cookies and cream

3 0
2 years ago
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A school cafeteria sells milk at 25 cents per carton and salads at 45 cents each. one week the total sales for these items were
denis-greek [22]

solution:

Lets start with the most amount that could have been sold.......using guess and check, we can figure out that 290 salads could have been sold, while 8 cartons of milk would have been sold.

The least amount of salads that could have been sold were none.

so,

you have  0<s<290

at least none were sold, and at most 290 were sold

but I do believe you are missing part of the question


4 0
2 years ago
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