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kondor19780726 [428]
3 years ago
7

Elizabeth goes on a 5-mile run each Saturday.Her run typically takes her 40 minutes.She wants to increase the distance to 7 mile

s.
Mathematics
1 answer:
xenn [34]3 years ago
3 0
It would take Elizabeth 56 minutes.
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How much interest is earned on a principle of $1,500 at 6.3% for 5 years?
STatiana [176]

Answer:

472.5$

Step-by-step explanation:

1500$*.063=94.5$

94.5#*5years=472.5$

5 0
3 years ago
Is 16x^2-56x+49 a perfect square trinomial? How do you know ? If it is, factor the expression. Please show your work
daser333 [38]

Answer:

  • yes
  • (4x -7)^2

Step-by-step explanation:

If it is, the first and last terms are perfect squares, and the middle term is twice the product of the roots of those squares.

  16x^ = (4x)^2 . . . . a perfect square

  49 = 7^2 . . . . . . . a perfect square

  -2(4x)(7) = -56x . . . . . matches the middle term, so the factoring is ...

  16x^2 -56x +49 = (4x -7)^2

_____

The sign in the binomial factors is the same as the sign of the middle term of the trinomial.

6 0
3 years ago
If 20% of a number p is 10, what is 10% of p?
kobusy [5.1K]

Answer:

5

Step-by-step explanation:

20% of p = 10

20% = 0.2

Multiply

0.2p = 10

Multiply both sides of the equation by 5

p = 50

Find 10% of p

10% = 0.1

Multiply

0.1(50)

5

10% of p is 5

Hope this helps :)

8 0
3 years ago
Read 2 more answers
11) Ms. Ripa's family is planning to come visiting her from New York. She hopes to take
Natasha_Volkova [10]
$88

Explanation:
Adults $12x5 = 60
Child $7x 4=28
60+28=88
5 0
3 years ago
3. The math department needs to buy new textbooks and laptops for their
Alenkasestr [34]

Let they be x.

Cost of textbooks + laptops cant greater than total amount.

(cost of 1 textbooks * number of textbooks) + (cost of 1 laptop * number of laptops ≤ 6500

(30*116) + (x*439) ≤ 6500

3480 + 439x ≤ 6500

439x ≤ 3020

x ≤ 6.8(approx)

Last natural number is 6, says, they can buy 6 laptops at max.

3 0
4 years ago
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