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Luden [163]
3 years ago
13

Louisa used a gift card to pay for 3 meals at a vegetarian restaurant. Each meat cost $7. By how much has the value of the gift

card changed after the purchase of the meals?
A.-$10
B.+$10
C.$7
D.-$21
Mathematics
2 answers:
Stells [14]3 years ago
7 0

Answer:

D

Step-by-step explanation:

romanna [79]3 years ago
5 0

Answer:

D.-$21

Step-by-step explanation:

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If like age is represented by x which of the following would represent his bother age
Zigmanuir [339]

Answer:

y but can you give more details

7 0
3 years ago
A particle, initially 15 m from the origin and travelling at -2 ms), accelerates at a constant rate and ends up -20 m from the o
tigry1 [53]

the general equation for velocity in terms of acceleration and displacement is: v² = v₀² + 2ax.

Solve for a: a = (v² - v₀²)/(2x).

You are given v₀ and v, and x is easy to calculate since you are given its initial and final values. The rest is just arithmetic.

(note also: SI expressions have a required space between the coefficient and the unit symbol. Thus you should have things such as “15 m” and “-2 m·sˉ¹” instead of “15m” and “-2m·sˉ¹”.)

5 0
3 years ago
You can tell that pi is an irrational because it has a what
8090 [49]

I'll guess the answer is <em>you can tell that pi is an irrational because it has a </em>non-terminating yet non-repeating decimal representation.<em> </em>

Of course it's not clear how we tell this.  We can't know for sure just by looking at the first trillion digits we've figured out whether it repeats or not.  Someone told us it didn't, that's really how we know.


3 0
4 years ago
A pan has an original price of $32 but is marked down by 15 percent. Which equation shows the new price of the price
sergejj [24]
We suggest, that the number 32 is 100% - because it is the output value of the task. 
<span>We suggest, that x is the value that we are looking for. </span>
<span>3. If 32 is 100%, so we can jot it down as 32=100%. </span>
<span>4. We know for sure, that x is 15% of the output value, so we can jot it down as x=15%. </span>
5. Now, these are the equations are we have.
1) 32=100%
2) x=15%
where the left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
32/x=100%/15%
6. Now we just have to work out the equation, and we'll get the answer that we want.

7. Answer for what is 15% of 32

32/x=100/15
<span>(32/x)*x=(100/15)*x       - </span>multiply both sides of the equation by x
<span>32=6.66666666667*x       - </span>divide both sides of the equation by (6.66666666667) to get x
<span>32/6.66666666667=x </span>
<span>4.8=x </span>
x=4.8

<span>15% of 32=4.8
So, the answer is $4.8
Hope this helped</span>
8 0
3 years ago
Read 2 more answers
Ill give 30 points plz asnwer ( there are multiple answers btw) tyyy
iogann1982 [59]

Answer:

7,13,

Step-by-step explanation:

that's just what I think

3 0
3 years ago
Read 2 more answers
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