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9966 [12]
3 years ago
15

4 is 80% of what number?

Mathematics
1 answer:
ZanzabumX [31]3 years ago
3 0
"<span>4 is 80% of what number?</span>" translates to 4 = 0.8 × n

So divide both sides by 0.8 and you will get n = 4/0.8 = 5

Final answer: 5
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Round 0.868 to the nearest tenth.
Anna11 [10]

Answer: 0.9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is 56.398 rounded to the nearest tenth?
Vesna [10]
Well when you round to the nearest 10 it will be 1 number after the point (this is due to that 10 only has one 0.) now we know that if there is a number bigger than 5 besides the number they ask you in this case the first after the point you will add 1 to that number. in this case you will add 1 to the 3. this will give you the answer of 56.4

Hope this helps
6 0
3 years ago
What is the answer to this? −1.3≥2.9−0.6r
Karolina [17]

Answer:

Inequality Form:

r ≥ 7

Interval Notation:

[7, ∞)

Step-by-step explanation:

−1.3 ≥ 2.9 − 0.6r

Rewrite so r is on the left side of the inequality.

2.9 − 0.6r  ≤ −1.3

Move all terms not containing r to the right side of the inequality.  

Subtract 2.9 from both sides of the inequality.

−0.6r  ≤ −1.3 − 2.9

Subtract 2.9 from −1.3.

−0.6r  ≤ −4.2

Divide each term by −0.6 and simplify.

      Divide each  term in −0.6r  ≤ −4.2 by −0.6. When multiplying or dividing both sides of an

      inequality by a negative value, f lip the direction of the inequality sign.

       −0.6r /−0.6 ≥  −4.2 /−0.6

       Cancel the common factor of −0.6.

                  −4.2

          r ≥    ______

                  −0.6

 Divide −4.2 by −0.6.

r ≥ 7

The result can be shown in multiple forms.

Inequality Form:

r ≥ 7

Interval Notation:

[7, ∞)

6 0
3 years ago
Tim has 393939 pairs of headphones and 131313 music players. Tim wants to sell all of the headphones and music players in identi
viktelen [127]

Answer:

131313

Step-by-step explanation:

The greatest number of packages which includes pairs of headphones and music players is the  greatest common factor of the two numbers:

which is equal to 131313

So, there are 131313 packages that Tim can make with its greatest number. and in each package , there will be 3 pair of headphones and 1 pair of music player.

3 0
3 years ago
Read 2 more answers
A sequence is defined by the recursive function f(n + 1) =
ella [17]

Answer:

f(1)=9

Step-by-step explanation:

Given \ f(n+1)=f(n)\\f(3)=f(2)\\f(2)=f(1)\\f(1)=f(2)=f(3)\\f(1)=f(3)\\f(1)=9

6 0
3 years ago
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