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Ber [7]
1 year ago
5

If a unit price label has a unit price of 13. 5 cents per ounce, how much is the total price for a 24 ounce package? a. $0. 32 b

. $0. 56 c. $1. 78 d. $3. 24 Please select the best answer from the choices provided A B C D.
Mathematics
1 answer:
Zigmanuir [339]1 year ago
3 0

Answer:

D $3.24

Step-by-step explanation:

13.5 times 24 is 324 cents, and 324 cents is equal to $3.24

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One positive number is 9 more than twice another. If their product is 95, find the numbers.
mafiozo [28]

Answer:

The numbers are 19 and 5

Step-by-step explanation:

Given

Let the numbers be x\ and\ y.

So:

x = 9 + 2y --- First statement

x*y = 95 --- second statement

Required

Find x and y

Substitute x = 9 + 2y in x*y = 95

(9 + 2y) * y = 95

9y + 2y^2 = 95

Rewrite as:

2y^2 + 9y - 95 = 0

Expand

2y^2 -10y +19y- 95 = 0

Factorize

2y(y -5) +19(y- 5) = 0

(2y  +19)(y- 5) = 0

Solve for y

2y + 19 =0 or y - 5 = 0

2y = -19 or y = 5

y = -\frac{19}{2} or y=5

Since the numbers are positive, we take only:

y=5

Substitute y=5 in x = 9 + 2y

x = 9 + 2 * 5

x = 9 + 10

x = 19

<em>The numbers are 19 and 5</em>

5 0
3 years ago
Prove that there are infinitely many primes of the form 4k + 3, where k is a non-negative integer. [Hint: Suppose that there are
Simora [160]

Answer:

The prove is as given below

Step-by-step explanation:

Suppose there are only finitely many primes of the form 4k + 3, say {p1, . . . , pk}. Let P denote their product.

Suppose k is even. Then P ≅ 3^k (mod 4) = 9^k/2 (mod 4) = 1 (mod 4).

ThenP + 2 ≅3 (mod 4), has to have a prime factor of the form 4k + 3. But pₓ≠P + 2 for all 1 ≤ i ≤ k as pₓ| P and pₓ≠2. This is a contradiction.

Suppose k is odd. Then P ≅ 3^k (mod 4) = 9^k/2 (mod 4) = 1 (mod 4).

Then P + 4 ≅3 (mod 4), has to have a prime factor of the form 4k + 3. But pₓ≠P + 4 for all 1 ≤ i ≤ k as pₓ| P and pₓ≠4. This is a contradiction.

So this indicates that there are infinite prime numbers of the form 4k+3.

6 0
3 years ago
Read 2 more answers
If I left alabama at 10:00 am what time would I arrive in California if I drove
kirill115 [55]
You would arrive at 5 am, which would be 3 am in the california time zone.
7 0
2 years ago
Gretchen rode her snowmobile 1 1/4 miles to a snowmobile trail. She rode on the trail for 5 5/6 miles and then rode back home. W
trapecia [35]

Answer:

5 5/6+1 1/4+1 1/4, or 8 1/3 miles

7 0
3 years ago
Read 2 more answers
A) If it takes 125 chinchillas to make a coat and he needs to make 10 coats, how many chinchillas must Barton have by the end of
Nesterboy [21]


So one coat uses 125 chinchillas . So, 10 * 125 will give you how many will give you 1250 chinchillas.. this is the number of chinchillas needed for 10 coats. So for 2 years you would have to multiply it by two so, 1250 * 2 = 2500.

 

3 0
3 years ago
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