Mathematics Middle School

,if the swimmer is in a 100m race she swims the first half of the race and 32.34 seconds and the last half of the race and 34.83 seconds how long did it take her to swim the whole race?

Answers

Answer 1

the swimmer will take 67.17 second.

Answer 2

The swimmer took 67.17 seconds to swim the whole race. You just need to add 32.34 and 34.83

Related Questions

Write the ratio 4/12 as a decimal.

Answers

4/12 as a decimal is 0.3, all you simply have to do is divide 4 and 12 and youll get your answer .

The ratio 4/12 converts to a decimal by dividing 4 by 12, resulting in 0.333 when rounded to the nearest thousandth.

To write the ratio 4/12 as a decimal, you simply divide the numerator (4) by the denominator (12). Let's do this step-by-step:

Divide 4 by 12, which equals 0.3333...

Since the division results in a repeating decimal, round it to the nearest thousandth for simplicity, which gives us 0.333.

The ratio 4/12 as a decimal is 0.333.

The top number (numerator) is what you're dividing, and the bottom number (denominator) is what you're dividing by.

In our case, 4 divided by 12.

which number , when rounded to the nearest hundredth, is equal to 2.39?

Answers

2.385 or another thousandths place decimal

order the following sets from least to greatest {1/8, -0.025, 0.2, -1/7}

Answers

-1/7, -0.025, 1/8, 0.2

hope this helps

-0.025, 0.2, 1/8, 1/7

REWRITE THE EXPRESSION WITHOUT USING GROUPING SYMBOLS 7(X -19)

Answers

distribute the 7

7(x-19) = 7x - 133

write a linear function with the given values f(0) = 7,f(3) = 1

Answers

f(x)=-2x+7
Hope this helps. Ask any questions if you need.

Which phrase best describes what this graph demonstrates

Answers

the awnser is a. sorry that i am late.

The answer IS "A) This graph shows that both chlorophyll a and chlorophyll b absorb some higher energy light as well as some lower energy light"

I will give you all the answer to the test

asnwer Mitochondria

Q] Why do the cells in all living things need energy?

A]To fuel their chemical reactions

Q]What process takes place in chloroplast?

A] photosynthesis

Q}which option is a balanced equation for cellular respiration

A} C6H12O6+6O2->6CO2+6H2O

The high temperature on Tuesday was 5 degrees warmer than the high temperature on Monday. If the high temperature on Monday was -12F, what was the high temperature on Tuesday?

Answers

-7 because -12+5 equals -7

W = 3x + 7y solve for y

Answers

Answer:

The value of the equation [tex]y=\frac{W-3x}{7}[/tex].

Step-by-step explanation:

Consider the provided equation.

[tex]W = 3x + 7y[/tex]

We need to solve the provided equation for y.

Subtract 3x from both side.

[tex]W-3x= 3x-3x+ 7y[/tex]

[tex]W-3x=7y[/tex]

Divide both sides by 7.

[tex]\frac{7y}{7}=\frac{W-3x}{7}[/tex]

[tex]y=\frac{W-3x}{7}[/tex]

Hence, the value of the equation is [tex]y=\frac{W-3x}{7}[/tex].

To solve the equation W = 3x + 7y for y, subtract 3x from both sides and then divide by 7 to isolate y, resulting in the solution y = (W - 3x) / 7.

To solve for y in the equation W = 3x + 7y, we need to isolate y. First, we subtract 3x from both sides of the equation so that the terms with y are on one side:

W - 3x = 3x + 7y - 3x

This simplifies to:

W - 3x = 7y

Next, we divide both sides of the equation by 7 to solve for y:

(W - 3x) / 7 = y

Therefore, the solution for y in terms of W and x is y = (W - 3x) / 7.

Divide 6⁄13 by 6⁄12 .

A. 1⁄12
B. 9⁄16
C. 12⁄13
D. 13⁄12

Answers

6/13÷6/12=12/13 so C.

Hope this helps!

The answer is C, 12/13.
I got the answer by using my graphing calculator, hope I helped! :0)

If 5/8 of the people in water aerobics class are over age 65 and 1/4 of the people in the class are under age 40,what fraction of the people in the class are either over 65 or under 40?

Answers

I think the answer's 7/8. If you convert 1/4 to 2/8 and add them together, you add 5/8 and 2/8 to get 7/8.

Final answer:

To find the fraction of people in the class who are either over 65 or under 40, we add the fractions of people in each age group. The maximum fraction is 1.

Explanation:

To find the fraction of people in the class who are either over 65 or under 40, we need to add the fractions of people in each age group. First, we find the fraction of people over 65 by multiplying the total fraction by the fraction of people over 65: 5/8 * 1 = 5/8. Next, we find the fraction of people under 40 by multiplying the total fraction by the fraction of people under 40: 1/4 * 1 = 1/4. Finally, we add the two fractions together to find the total fraction of people who are either over 65 or under 40: 5/8 + 1/4 = 9/8. However, fractions cannot be greater than 1, so the maximum fraction is 1. Therefore, the fraction of people in the class who are either over 65 or under 40 is 1.

Learn more about Fraction here:

https://brainly.com/question/10354322

#SPJ2

Multiply: 2m4(5m3 + 4m − 1)

A. 11m8
B. 10m7 + 8m5 − 2m4
C. 10m12 + 8m4
D. 10m7 + 8m4 − 2

Answers

2m^4(5m^3 + 4m − 1)
= 10m^7 + 8m^5 - 2m^4

answer
B. 10m^7 + 8m^5 - 2m^4

Answer:

The correct option is B) [tex]10m^{7}+8m^{5}-2m^{4}[/tex]

Step-by-step explanation:

we need to multiply the given expression

Given [tex]2m^{4}(5m^{3}+4m-1)[/tex]

Multiply polynomial term wise,

[tex](2m^{4}\times 5m^{3})+(2m^{4}\times 4m)-2m^{4}[/tex]

[tex]10m^{4+3}+8m^{4+1}-2m^{4}[/tex]

[tex]10m^{7}+8m^{5}-2m^{4}[/tex]

Therefore, the correct option is B) [tex]10m^{7}+8m^{5}-2m^{4}[/tex]

Estimate to the new integer I don't understand help 23 and 25 I'm.not sure this is right

Answers

Integers is a number without a decimal point.

To do this we need to find the two perfect squares in between 23.5, which are 16 and 25. Since 23.5 is closest to 25, your answer is √25, or 5.

Doing this on the second one, We need to find the perfect cube roots that have 430 in between. It is 343 and 512. Since 430 is closer to 343, your answer is the cube root of 343, or 7.

Hope this helps!

Hello There!

An integer is a whole number.
√23.5 = 4.84767985742.
As an integer this would be 5 or √25.
The second one is ∛343 or 7.

Hope This Helps You!
Good Luck :)

- Hannah ❤

what is 6-2(x+3)=10-3x

Answers

x=10
you get 10 by multiply through parentheses by -2
eliminate the opposites
move the variable to the left collect the like terms

first do the outer bit 6-2=4. 4(x+3) is 4*3=4X AND 4*3=12=
so 4x+12=10-3x from this we can collect like tems by putting the x on one side
4x--3x=7x+12=10
7x=10-12
7x=-2
x=-2/7=0.29

The circle graph below shows that of the 440 students at Washington Middle School 40% are in grade 8 what is the total number of students in grade 8 Class

Answers

176 students are in the grade 8 class. Multiply 440 by 0.4 or 40%.

So to find this, you would simply find 40% of 440. You do this by multiplying 440 by 0.4 (or 0.40). This results in 176. So, there are 176 students at Washington Middle School who are in 8th grade. Hope this helps!

36/8 as a mixed number, in simplified form

Answers

36/8 as a mixed number in simplest form is 4 4/8. To turn improper fractions into mixed numbers, divide the numerator by the denominator, (in this case it's 36 ÷ 8), then the answer will be the whole number part, and the remainder will be the numerator.

Hope this helps! :D

~PutarPotato

Mixed Number: 4 4/8

Simplified form: 4 1/2

8x-28=44

How do you solve and graph the solution?
HELP ASAP!!

Answers

So, idrk how to graph it, but to solve it by multiplying 8 by 8, then carrying 6. Now, you multiply 2 by eight and add 6 which will give you 224. That means somehow the answer u typed in i think was wrong.

A sphere has a volume of 600 centimeters. What is the radius of the sphere? Please show work

Answers

to solve this problem, you have to know the formula for the volume of a sphere, which is V=(4/3)πr^3
in this case: 600=(4/3)πr^3 =>r^3=600/[(4/3)π]
use your calculator: r=5.23

600 = 4/3πr^3
*3/4 *3/4
450=πr^3
/π /π
143.23=r^3
•now u need to find the cube root which is..
5.23 cm

ABC, CBA, and CAB are three three-digit number; that is, three number between 100 and 999. If ABC-CBA= CAB,what are the three digit munbers

Answers

A=9
B=5
C=4

954-459=495

Finn is baking cakes for a party. The number of cups of sugar Finn needs is proportional to the number of cakes he plans to bake. Which statements are true about the number of cups of sugar Finn needs? Select each correct answer.

Answers

Can you please attach the options?

Answer: Finn needs 6 cups of sugar for 4 cakes

Finn needs 1 1/2 cups of sugar for 1 cake

Step-by-step explanation:

i took the test

what is the scientific notation for 0.00000345?

7 POINTS EACH

Answers

You have to figure out how many spaces you have to move it ->. You move it right 6 times in order to get 3.45. so your answer would be 3.45 • 10^6. To check your answer, divide 3.45 / 10^6. Which is 0.00000345. :)

The answer is 3.45 x 10^-6

What is 175-18×9÷6 Order of operations

Answers

According to PEMDAS,
*Parenthesis
*Exponents
*Multiplication
*Division
*Addition
*Subtraction

You do them left to right.
18 * 9 = 162.
162 / 6 = 27
175 - 27 = 148

Hope this helps! ☺♥

The answer would be 148

math question down below

Answers

To get the average, you must add all together and divide by the amount of numbers there are

(-4 - 6 - 3 - 1 + 0 + 2 - 1 - 3)/ 8

(-16)/8 = -2

-2 is your average

hope this helps

add them all = -16
-16/8 = -2

answer
-2 in

Jenny filled 12 pitchers with an equal amount of lemonade in each. The total amount of lemonade in the 12 pitchers was 41.4 liters. How many liters of lemonade would be in 7 pitchers?

Answers

Solving the proportion, there would be 3.45 liters in each pitcher, meaning that there would be 24.15 liters of lemonade in 7 pitchers.

16 - 2t = 5t + 9

What number does t represent? I'm bored

Answers

Try not to be bored. You can take the attitude that you actually like math, and that you will some day actually be a MathGenius.

t represents an unknown quantity defined by the equation 16 - 2t = 5t + 9.

To find this value, do the following: Add 2t to both sides, and then subtract 9 from both sides. You'll end up with 7t = 7, which yields t = 1.

We call this the "solution" of the equation given.

Answer:

Same

Step-by-step explanation:

I have no explanation

How many feet are in 66 inches

Answers

there is 12 inches in 1 ft......so in 66 inches.....66/12 = 5.5 ft or 5 1/2 ft or 5 ft 6 inches

5.5 feet that the answer

30,840 in expanded form?

Answers

30,840 is expanses for by place value is 30,000 + 800 + 40. Add them together and you get 30,840.

30,840 in expanded form is 30,000

the 8 is 800

the 4 is 40.

hope this helps. (also hope Im right.)

Find (2.2 x 10^7)(5 x 10^8)/(2.5 x 10^3)(8.8 x 10^5) expressed in scientific notation.

Answers

I'm pretty sure its d

Kerry and Luke biked a total of 18 miles in one week. Kerry biked 4 miles more than Luke. Write a system of equations and solve it to find how far each boy biked

Answers

Let x = Kerry's distanceLet y = Luke's distance x + y = 18 eq1 x = y + 4x - y = 4 eq2 Our equations are: x + y = 18x - y = 4

please show hw you got your answer, and please show which one is the correct one. (coupon A or coupon B).
please tell why it is correct and please show how you got your answer.
Thank You!
Good luck!

Answers

Coupon A: $18 rebate on a $59 printer
Coupon B: 35% off of a $59 printer

With coupon A, the final price is 59-18 = 41 dollars
With coupon B, the final price is 59-0.35*59 = 38.35 dollars

So coupon B offers the lower price. The price difference between the coupon options is $2.65 (41-38.35 = 2.65); meaning that coupon B is the better option by $2.65

Use a transformation to solve the equation. f ∙ 8 = 40 a f=5 b f=32 c f=48 df=320

Answers

Using Taylor expansion, show that
f0
(x0) = f(x0 + h) − f(x0)
h − h
2
f00(ξ),
for some ξ lying in between x0 and x0 + h.
Solution: We expand the function f in a first order Taylor polynomial around x0:
f(x) = f(x0)+(x − x0)f0
(x0)+(x − x0)
2 f00(ξ)
2 ,
where ξ is between x and x0. Let x = x0 + h:
f(x0 + h) = f(x0) + hf0
(x0) + h2
2 f00(ξ).
Solving for f0
(x0), we obtain:
f0
(x0) = f(x0 + h) − f(x0)
h − h
2
f00(ξ)

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