The ratio of the walking speeds of three peoplev in race walking is 3:4:5. If their walking
distances are the same, then the ratio of the
times taken is
A. 3:4:5.
B. 9:16:25.
c. 16:15:9.
D. 20:15:12

Answers

Answer 1

Answer:

3 : 4 : 5 = 3² : 4² : 5² = 9 : 16 : 25

The answer is B.

Hope this helps.

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Round 2.15 to nearest tenth
HOW CAN YOU MAKE 7,5,6,AND 3 EQUAL 75 USING PARENTHESIS.
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the area of a rectangle is 42 square inches and one side is 12 inches long . find the perimeter of the rectangle

Answers

The area is one side times the other side
Make the other side x.
12x=42
x=42/12=3.5
The perimeter is 2x+2y where x and y are sides of the rectangle.
P= 2(3.5)+2(12)=7+24=31 inches
Hope this helps.

Answer:

The area is one side times the other side

Make the other side x.

12x=42

x=42/12=3.5

The perimeter is 2x+2y where x and y are sides of the rectangle.

P= 2(3.5)+2(12)=7+24=31 inches

Hope this helps.

1/10 and 8/100 which is the correct sum

Answers

To add 1/10 and 8/100, they must have the same denominator.

To do this, multiply 1/10 by 10/10 (which equals one, so it doesn't change the value of the fraction).

Now you have 10/100 and 8/100. To add them, simply add the numerators and keep the denominators the same.

This results in 18/100, which can be simplified to 9/50.

Jamie is buying 5 concert tickets, and he wants his total coast to be no more than $4 above or below $80. Write an inequality that models the cost x, in dollars, of a ticket?

Answers

|80 - 5x| ≤ 4

This is about absolute value inequality.

He is buying 5 tickets.

He wants his total cost to be in the range of 80 ± 4.

If the cost of one ticket is $x, then we have;

5x - 80 ≤ 4

5x ≤ 84

x ≤ 16.8

Also; 80 - 5x ≤ 4

5x ≥ 76

x ≥ 15.2

From absolute values, since;

5x - 80 ≤ 4 and 80 - 5x ≤ 4

we can express this inequality as;

|80 - 5x| ≤ 4

Read more at; brainly.com/question/13462599

Final answer:

To model the cost x, in dollars, of a concert ticket, the inequality 80 - 4 ≤ x ≤ 80 + 4 can be used.

Explanation:

To model the cost x, in dollars, of a concert ticket, we can write the following inequality:

80 - 4 ≤ x ≤ 80 + 4

This inequality states that the cost of a ticket, x, must be between $76 and $84 (inclusive),

in order for Jamie's total cost for 5 tickets to be no more than $4 above or below $80.

Learn more about Inequality for concert ticket cost here:

brainly.com/question/29092761

#SPJ12

-4x + 7 = 11 help me please!

Answers

-4x + 7 = 11

First, subtract 7 from both sides. / Your problem should look like: $-4x = 11 - 7$
Second, subtract 11 - 7. / Your problem should look like: $-4x = 4$
Third, divide both sides by -4. / Your problem should look like: $x = (4)/(-4)$
Fourth, change the fraction to a negative. / Your problem should look like: $x = -(4)/(4)$
Fifth, cancel 4 out. / Your problem should look like: $x = -1$

Answer: x = -1

you want to get "x" by its self.

-4x+7=11 (subtract 7 on both sides)
-4x=4 (divide -4 on both sides)
x=-1

What times what equals 78 and what times what equals 125 please explain !!!

Answers

Well, a good way to find out is that 78 goes into 3, because if you add 7 and 8 you get 15 and 15 goes into 3, so if you divide 78 by 3 you get 26 , and 125 goes into 25 so if you take 125 divided by 25, you get 5. So your 2 answers are 3*26=78, and 25*5=125

Which factorization of 24 includes a
perfect square?
A. 2-12
B. 3-8
C. 4-6