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Sav [38]
3 years ago
12

Help plz with this it is very hard

Mathematics
1 answer:
krok68 [10]3 years ago
6 0

Answer:

I don't know how to do my brother has know you will say at my brother

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What is 20% as a decimal
morpeh [17]

Answer is 0.2

To fnid the decimal, dovide the percentage by 100. 20/100 is 0.2.


I hope youre still around to read this

6 0
3 years ago
Read 2 more answers
Q is directly proportional to r.<br> Q is 76 when r is 20.<br> Work out q when r is 45
r-ruslan [8.4K]

Answer:

171

Step-by-step explanation:

Q~r

find k (k is the constant)

Q=kr

76=k×20

76=20k divide 20 on both sides giving you

k=3.8

then Q=k×r

Q=3.8×45

Q=171

3 0
3 years ago
-1+5x≥-16 I dont know how to solve
olasank [31]

Answer:  x \ge -3

Explanation:

Follow PEMDAS in reverse to undo what's happening to x.

We first add 1 to both sides, then divide both sides by 5 to fully isolate x.

Refer to the steps below to see what I mean.

-1 + 5x \ge -16\\\\5x \ge -16+1\\\\5x \ge -15\\\\x \ge -15/5\\\\x \ge -3\\\\

The inequality sign stays the same the entire time. The only time it flips is when you divide both sides by a negative number.

The solution set for x is anything -3 or larger.

If x was an integer, then we could say the solution set is {-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, ...}

7 0
2 years ago
What percent of 3/5 is 9/10 ? <br> A. 1.5% <br> B. 7% <br> C. 15% <br> D. 67% <br> E. 150%
maw [93]
.67%
hope this helps.
0.6/0.9= 0.666667
7 0
3 years ago
Read 2 more answers
what is 900+100 I'm stuck 100 points for the people who can answer i know its 1000 still 100 points go listen to (joey trap) bar
charle [14.2K]

Answer:

1000

Step-by-step explanation:

x = 1, y = -1, and z = 2

5 0
2 years ago
Read 2 more answers
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