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3 years ago

Sarah competes in a long jump competition.

1 answer:

8 0

How to find Sarah’s best jump:
First you multiply 4.25 by 12% (or 0.12) to get 0.51 meters.
4.25 + 0.51 = 4.76 meters. So her best jump is 4.76 meters.
How to find the winning jump:
Since her best jump is 15% less than the winning jump, it must be 85% of the winning jump (as in 85 is 85% of 100).
So you divide 4.76 by 85% (or 0.85) which equals 5.6 meters.
So, the winning jump was 5.6 meters.

If you need help calculating percentages, you can use this website:

https://www.skillsyouneed.com/num/percent-calculators.html

Hope this helps!

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Help please!!!!!!!!!!

scZoUnD [109]

Answer:

f ( x ) = x² - 1

Step-by-step explanation:

hope this will help

7 0

3 years ago

Read 2 more answers

Solve the system by substitution. x – 3y = 4 2x – 6y = 8 A. no solution B. x = 4, y = 0 C. x = 0, y = 0 D. infinite solutions

ruslelena [56]

Answer:

The correct answer is option D.

Step-by-step explanation:

if the pair of equation has one or more than one solution then it is said to be consistent.

Only one solution , then independent system.
More than one solution , then dependent system.

if the pair of equation has no solution then it is said to be inconsistent.

Given : x - 3y = 4 ...[1]

2x - 6y = 8 ...[2]

Solution :

Solving equations with the help of Substituting methods:

x - 3y = 4

x = 4 +3y

Putting value of x from [1] in [2]:

$2(4+3y)-6y=8$

$8+6y-6y=8$

$6y=6y$

0 = 0

Given , system of equation will have infinite solution. Hence consistent and dependent.

The given system of equations will have infinite solutions.

4 0

4 years ago

Read 2 more answers

Inez and Joe worked at store that sells cell phones.Inez worked for 7 hrs and 23 minutes and Joel worked for 4 hrs and 51 minute

Paul [167]

Answer:

Inez worked for 2 hours 32 minutes more than Joe

Step-by-step explanation:

Here, we are to calculate the difference in the amount of time in which both of them spent working.

Mathematically, that would be the time spent by Inez minus the time spent by Joe

= 7 hrs 23 minutes - 4 hrs 51 minutes

This works like normal arithmetic subtraction;

Since we cannot subtract 51 minutes from 23 minutes, we need to borrow 1 hour ( 60 minutes) from 7 , and it becomes 6 while our minutes become (60 + 23 = 83 minutes).

So the difference here will be (6-4)hrs and (83-51) minutes = 2 hrs 32 minutes

4 0

3 years ago

the perimeters of a rectangle and an equilateral triangle are equal. what is the equation for this scenario?rectangle’s perimete

djyliett [7]

The total length of a boundary defines the perimeter of an equilateral triangle.

<h3>What is the Perimeter of an Equilateral Triangle?</h3>

The total of the three sides makes up the perimeter of an equilateral triangle.
The following fundamental characteristics define a triangle as being equilateral:

The three sides are equal.
There is a 60° angle between all three.

The sides of the triangle PQ = QR = RP in the following illustration have equal lengths.
The triangle's angles are also equal in addition to this. An equilateral triangle is what this is.
An equilateral triangle's perimeter is now equal to 3a, where a denotes one of the triangle's sides.

Perimeter of Equilateral Triangle Formula : P = 3a, where 'a' stands for one of the triangle's sides, is a simple formula for calculating an equilateral triangle's perimeter. An equilateral triangle has three equal sides, hence the sum is equal to three equal sides, or 3a.

Additional equilateral triangle formulas include the following: When we need to determine a triangle's height from its sides, we can apply the following formula: Equilateral Triangle Height = (3a)/2

The semi-perimeter of an equilateral triangle must be determined in a few situations. Half of a perimeter, or semi-perimeter, is equal to 3a/2, which is derived using the formula semi-perimeter = (a + a + a)/2.

To Learn more About equilateral triangle refer to:

brainly.com/question/15294703

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