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Ludmilka [50]
3 years ago
15

What is 20(-1.5r + 0.75)​

Mathematics
2 answers:
mylen [45]3 years ago
7 0

Answer:

-30r+15

Step-by-step explanation:

nirvana33 [79]3 years ago
4 0
The answer is -30r+15
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Find all solutions of the equation below.<br> 7^5-3=7^5x-19
Nutka1998 [239]

Answer:

7⁵-3=7⁵x- 19

Step-by-step explanation:

16807 - 3 = 7⁵x - 19

16804 = 7⁵x - 19

16804 = 16807x - 1

adding 19 on both sides

16804 + 19 = 16807x - 19 + 19

16823 = 16807x

x = 16823 / 16807

16823 upon 16807 is the x

3 0
3 years ago
A pile of 15 boxes is 3 metres high. What is the depth of each box?
schepotkina [342]

Answer:

15 boxes=3m=300cm

1 box=300cm÷15

=20cm

5 0
3 years ago
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Laryngeal cancer rates in smokers is 160.0 (per 100,000) and 25.0 (per 100,000) among nonsmokers. Among smokers, what percentage
Romashka [77]

Answer:

0.16%

Step-by-step explanation:

From the statement of the question;

Number of Laryngeal cancer due to smoking = 160

Population of smokers = 100,000

Hence the percentage of smokers liable to have Laryngeal cancer = 160/100000 ×100/1

=0.16%

Hence 0.16% of smokers are liable to Laryngeal cancer

4 0
4 years ago
Solve multi-step equations iready<br> -5m=3<br> m=?
gayaneshka [121]

Answer:

m = -3/5

Step-by-step explanation:

-5m = 3

Divide each side by -5

-5m/-5 = 3/-5

m = -3/5

7 0
3 years ago
Angles PTQ and STR are vertical angles and congruent.
iren [92.7K]

9514 1404 393

Answer:

  (a)  QP and SR

Step-by-step explanation:

The congruent central angles intercept congruent arcs QP and SR. Chords of congruent arcs are congruent.

chords QP and SR are congruent

4 0
3 years ago
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