Exercice 1

Sarah, who is twenty years old, runs regularly. During her workouts, she monitors her heart rate.It thus determined its maximum recommended heart rate and obtained 193 beats per minute. When she is forty years old, her maximum heart rate will be 178 beats per minute.Is it true that over this twenty-year period his maximum heart rate will have decreased by about 8%?

Answers

Answer 1

It is true that Sarah's maximum heart rate over this twenty-year period will have decreased by approximately 8%.

How is the percentage decrease computed?

The percentage decrease is determined by ascertaining the reduction or difference in heart rate at the beginning and at forty.

This difference becomes the numerator of the division operation by the heart rate at the beginning and then multiplied by 100.

Sarah's heart rate at twenty years = 193 beats per minute

Sarah's heart rate at forty years = 178 beats per minute

Difference (Decrease) in heart rate = 15 beats per minute (193 - 178)

Percentage decrease = 7.77% (15/193 x 100)

= 8%

Thus, we can conclude that Sarah's heart rate has decreased by about 8%.

Learn more about percentage decreases at https://brainly.com/question/14808025

#SPJ1


Related Questions

help!! i cannot figure this out

Answers

Answer:

A. 12 miles

B. 9 miles

C. 2 hours

D. 5 hours

E. Max did not move

F. 9 hours

G. 5 hours

hope this helps :)

Step-by-step explanation:

I need help with my hraph

Answers

what is the rest of the question

I need help
What is y

Answers

Answer:

7

Step-by-step explanation:

7 and y are the same i think

someone solve this and tell me steps

Answers

Answer:

m<A = 35

m<B = 55

Step-by-step explanation:

Complementary angles mean the 2 angles add up to 90 so:

y - 16 + y + 4 = 90

2y - 12 = 90

2y = 102

y = 51

m<A:

y - 16

51 - 16

35

m<B:

y + 4

51 + 4

55

. Write an inequality for each
sentence:
CA. You must be older than 13 to
play in the basketball league.
B. To use one stamp, your
domestic letter must weigh
under 35 ounces.
C. You must be over 48 inches
tall to ride the roller coaster.

Answers

C is the correct answer

Mhanifa can you please help? Look at the picture attached. I will mark brainliest!

Answers

Answer:

(2,1)

Step-by-step explanation:

Answer:

Diagonals of a parallelogram bisect each other

Given vertices:

(-2,-1), (1,3), (6,3), (3,-1)

Plot the points.

We see the diagonals are:

(-2,-1) (6,3)  and (1,3), (3,-1)

The midpoint of any diagonal is the intersection of the diagonals.

Use midpoint formula to find the coordinates:

x = (x₁ + x₂)/2 = (-2 + 6)/2 = 4/2 = 2y = (y₁ + y₂)/2 = (-1 + 3)/2 = 2/2 = 1

The point is (2, 1)

Pls help asap giving brainliest waited for 5 hours oof

Answers

Answer:3rd answer down (top to bottom)

Step-by-step explanation: c=dπ so

c=96π

c=96*3.14=301.4

so 3rd one down is the answer!

Hope this helps!

Answer:

c

Step-by-step explanation:

because its true

Using diagonals from a common vertex, how many triangles could be formed from the polygon pictured below?

Answers

Using diagonals from a common vertex, the maximum number of triangles that will be formed is 5 triangles.

The given polygon is irregular heptagon (7 unequal sides).

The given polygon is irregular and the maximum number of triangles that will be Formed is explained as follows;

Choose one common vertex in the polygonDraw a diagonal line to meet other vertices from one common vertexThe maximum number of triangles that will be formed is 5

Alternatively, we can use the following formula;

number of triangles formed = 7 - 2 = 5 triangles

Thus, using diagonals from a common vertex, the maximum number of triangles that will be formed is 5 triangles.

Learn more here:https://brainly.com/question/3700915

What is the name for a company that is taxed on the individual tax forms of its owners, and never as a separate
independent entity?
A A double taxation company
B. A tax exempt corporation
C. A nonprofit corporation
D A pass-through entity

Answers

D pass through. The taxes “pass through” to the owners

The area of a rectangle is 325 cm^2. What is the area of a rectangle in cm^2 with
sides 3 times as large?
i’m stuck, pls help

Answers

Answer:

2926 cm²

Step-by-step explanation:

The area of a rectangle is 325 cm^2. What is the area of a rectangle in cm^2 with sides 3 times as large?

Step 1

A rectangle has both Length and Width

Let us assume the Length = Width

The area of a rectangle is 325 cm²

Area = Length × Width

325 cm² = L²

L = √325 cm²

L = 18.027756377 cm

Approximately = 18.03 cm = Widtdh

Step 2

What is the area of a rectangle in cm² with sides 3 times as large?

From Step 1

L = 18.03cm

3 times as large = 18.03 cm × 3

= 54.09 cm

The Area for this rectangle

= A = L²

A =( 54.09 cm)²

A= 2925.7281 cm²

Approximately = 2926 cm²

The table represents Ginny's check register. Her checking account had a balance of $478.25 on March 11. Use the information in the check register to determine the balance of Ginny's checking account after the transaction on March 30. Enter your answer in the box​

Answers

Answer:

$430.35

Step-by-step explanation:

you have to subtract the 2 withdrawls, and then add 25 for the deposit to get the total amount

Akiko is making a pizza. The radius of the pizza is 19 inches. What is the circumference of the pizza (use 3.14 for pi and round to nearest tenth)?

Answers

Answer:

≈119.3

Step-by-step explanation:

The area for circumference is as follows:

[tex]C = 2\pi r\\or\\C = d\pi[/tex]

The above equations mean the same thing, because the diameter is just 2 times the radius.

Anyhow, we insert this value into the equation...

[tex]C = 2\pi(19)\\C = 38(3.14)\\C = 119.32\\[/tex]

This rounds to:

≈119.3

HELP ME PLEASE

In square PQRS the measure of <PRQ is 45°. What is the measure of <PRS in degrees?

Answers

Answer:

<PRS = 45

Step-by-step explanation:

In a square, all 4 angles are complementary so:

<PRS + <PRQ = 90

<PRS + 45 = 90

<PRS = 45

what is?
[tex] \frac{x}{y} + x[/tex]

Answers

Answer:

[tex]\frac{x+xy}{y}[/tex]

Step-by-step explanation:

Given

[tex]\frac{x}{y}[/tex] + x

Multiply x by [tex]\frac{y}{y}[/tex] to create a common denominator

= [tex]\frac{x}{y}[/tex] + x × [tex]\frac{y}{y}[/tex]

= [tex]\frac{x}{y}[/tex] + [tex]\frac{xy}{y}[/tex]

= [tex]\frac{x+xy}{y}[/tex]

A circle has a diameter of 42 inches. What is
the circumference of the circle? Use ?? for it.
(A) 33 inches
© 132 inches
D 264 inches
(B) 66 inches

Answers

Answer: C. 132 inches

Step-by-step explanation: Find the radius- 42/2=21 then use the formula C=2πR

What is the volume of the composite figure?

Answers

Answer:

1428 in³

Step-by-step explanation:

To find the volume of this figure, we will need to use two formulas. The volume of a Rectangular Prism [tex](A=l*w*h)[/tex] and volume of a triangular prism.

[tex](A=\frac{1}{2} (b*h )[/tex]

If we look at the Rectangular Prism, we can find that l = 17, w = 8, and h = 5. Multiply these to find the volume:

17 × 8 × 5 = 680 in³.

Solving for the triangular prism gives us:

A = 1/2 (11 ×  8 × 17)

A = 748.

Add these two volumes to find the volume of the composite figure:

748 + 680 = 1428 in³

Hope this helps!

(THERE ARE NO LINKS STOP REPORTING ME)

English alphabets ....letters ?

Answers

Step-by-step explanation:

a e I o u y are all vowels if that helps

aeiou (somtimes y) ... not sure what the question is

7. The price of a bike at Store A is 5/6 the price at store B. The price at store A is $150.60. Write and solve an equation to find out how much the bike is at store B. How much did you save by buying the bike at Store A.​

Answers

As a little tip that's helped me personally when I was taking algebra, making equations for word problems feels a lot easier when you "translate" equations you make into words to make sure that you're using the right equation.

Let's boil down what the question tells us. 5/6 of the price tag of a bike from Store B is the price of a bike from Store A, which is $150.60. Let's use the variable 'b' to represent the price of Store B's bike.

[tex]\frac{5}{6}[/tex] * b = 150.60

Try "translating" the equation above. "5/6 of the price of a Store B bike is equal to 150.60." That seems about right, doesn't it? Let's isolate 'b' so we can get an official answer.

Multiply both sides by 6 to get rid of the denominator:

[tex]\frac{5b}{6}[/tex] * 6 = 150.60 * 6

5b = 903.6

Divide both sides by 5 to get rid of b's coefficient:

[tex]\frac{5b}{5}[/tex] = [tex]\frac{903.6}{5}[/tex]

b = 180.72

The price of a bike from Store B is $180.72

If you need any help on anything I just did here, don't be afraid to ask. Good luck on your Algebra endeavors!

- breezyツ

Which value of "X" is a solution to this equation?
4x2 +22x +10

Answers

Answer:

Two solutions: X = -5 and X = -0.5

Step-by-step explanation:

4x^2 + 22x + 10 = 0 // divide by 2

2x^2 + 11x + 5 = 0

delta = 11^2 - 4 * 2 * 5 = 121 - 40 = 81

sqrt(delta) = 9

x1 = (-11 - 9) / 4 = -5

x2 = (-11 + 9) / 4 = -0.5

solve for each variable. PLEASE ANSWER SENSIBLY ​

Answers

Answer:

1.

(x+2)/x=20/12

(x+2)/x=5/3

doing crisscrossed multiplication

3x+6=5x

5x-3x=6

x=6/2=3

:.

x=3

x+2=3+2=5

WHICH ARE A PROPORTIONAL RELATIONSHIP PLS

Answers

Answer:

Graph E

You're welcome.

A computer lab has an average of 5 students per hour. Find the probability that
there will be exactly 8 students in the lab for a certain hour

Answers

Answer:

prob. (8std.)=8/(5+8)


The time it takes to travel to a destination varies inversely with the average speed. It takes two hours when the average speed is 40mph.
If the average speed changes to 80mph, what is the new travel time?

Answers

Answer:

1 hour

Step-by-step explanation:

The time it takes to travel to a destination varies inversely as its speed

T= k/S

K= TS

Time= 2 hours

Speed= 40mph

K= 2×40

= 80

Therefore if the average speed changes to 80mph then the new travel time can be calculated as follows

T= 80/80

= 1 hour

Hence the new travel time is 1 hour

help me please???????

Answers

Answer:

c

Step-by-step explanation:

its c because I'm a scholar B)

Boundxvoltz967 avatar
Boundxvoltz967
19 minutes ago
Mathematics
High School
*WILL GIVE BRAINLIEST FOR BEST ANSWER DONT ANSWER IF YOU DONT KNOW AND NO VIRUS LINKS OR I WILL REPORT YOU!!!*
A computer randomly selects a number from the given set.

{2, 4, 6, 9, 16, 44, 51, 60, 78}

What is the probability that a number less than 10 is selected?

Enter your answer as a fraction, in simplest form, in the box.

P(< 10) =

Question 3 options:

A. 59

B. 49

C. 29

D. 89

Answers

Answer:

ur gay.....lollllllllllllllllllll

Step-by-step explanation:

milk

add me on sn4p h4h4...... sophia_ordaz12

Answers

Answer:

ok

Step-by-step explanation:

If you take a French fry and dip it in some ice cream you’ll get a orgasm

help no links please

Answers

Answer:

Impossible

Step-by-step explanation:

Good luck

What is the slope of the line that passes through the points (3, -2) and (9, -2)?

a) 0
b) 3
c) -3
d) undefined

Answers

Answer:

a) 0

Step-by-step explanation:

the equation of the slope (m) for a line from two points is given as (y2-y1)/(x2-x1)

we are given the points (3,-2) and (9,-2)

we can label the points:

x1=3

y1=-2

x2=9

y2=-2

now substitute into the equation:

m=(-2--2)/(9-3)

simplify

m=(-2+2)/6

m=0/6

m=0

the slope of the line is 0, which is option a

Hope this helps!

-
Evaluate the expression for m
=7 and n = 10.
m + n =

Answers

Answer:

7 + 10 = 17

Step-by-step explanation:

Hey there!

m + n


= 7 + 10


= 10 + 7

= 17


Therefore, your answer is: 17


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)


Two intersecting segments form the diagonals of a quadrilateral. What additional information do you need to
know about the diagonals to prove that the quadrilateral is a parallelogram?

a.they must be perpendicular

b.they must bisect each other

c.they must intersect in the center of the quadrilateral

d.they must be congruent

Answers

Answer:

B. They must bisect each other

Step-by-step explanation:

Found the answer on quizziz

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