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Leto [7]
3 years ago
5

What is the value of 4-4

Mathematics
2 answers:
icang [17]3 years ago
5 0

Answer:

0

Step-by-step explanation:

If you take 4 cars from a person who as only 4 cars. now he has 0 cars

11111nata11111 [884]3 years ago
4 0

Answer:

0?

Step-by-step explanation:

4-4=0

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Square root of x^2 is x
square root of 144 is 12
(x-12) (x+12)
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Christine went shopping and bought each of her ten nephews a gift, either a video costing $14.95 or a cd costing $16.88. she spe
JulsSmile [24]
She got 9 videos, and 1 cd.
7 0
3 years ago
Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’
lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

x-0.1x+2.70=56.70

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the <em>original price of the jeans</em>.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans <em>after</em> the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is <em>not</em> a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

(70)-0.1(70)+2.7\stackrel{?}{=}56.70

Multiply:

70-7+2.7\stackrel{?}{=}56.7

Subtract:

63+2.7\stackrel{?}{=}56.7

Add:

65.7\neq56.7

However, we <em>can</em> verify that 60 <em>is</em> the solution by substituting. So, substitute 60 for every x:

(60)-0.1(60)+2.7\stackrel{?}{=}5.7

Multiply:

60-6+2.7\stackrel{?}{=}56.7

Subtract:

54+2.7\stackrel{?}{=}56.7

Add:

56.7\stackrel{\checkmark}{=}56.7

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0
3 years ago
Read 2 more answers
1+1 need help too du(mb
makkiz [27]
2 YES CHILEEEEEEE Chile chicle Chile choemmdkemsndnsjjsjsksksksks
8 0
3 years ago
4) You and a friend go out for lunch. Each of you paid $6.50 for the meal including a 6% sales tax.
noname [10]

Answer:6:11

Step-by-step explanation:

I hope this helps

8 0
3 years ago
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