Sylvan drove 128.6 km each day for 8 days. He drove 44.3 km each day for 12 days. What was the total distance Sylvan drove?

Answers

Answer 1

Answer:

If x and y are the hours she drove at the different rates, then:

x+y=5

80x+100y=440

-------

80x+100y=440

80x+80y=400

20y=40

y=2

x=3

She drove 3 hours at 80 kmh and 2 hours at 100kmh!!!!!!!

Step-by-step explanation:


Related Questions

GIVING BRAINLIST. 6 dimes if what percent of a dollar

Answers

Answer:

60%

Step-by-step explanation:

6 dimes is 10x6 and a dollar would have 10 dimes so 60%

9) A car dealer offers a discount of 20% off the normal price of a car, for cash. Peter intends to buy a car which usually cost £6800. He intends to pay by cash. Work out how much he will pay.

10) A month ago, John weighed 97.5 kg. He now weighs 4.5% more. Work out how much John now weighs. Give your answer to 1 decimal place.

Answers

Answer:

1360

Step-by-step explanation:

40 - 10 + 20

Don’t answer until when it’s one min later....there is a timer on my math probs so ya

Answers

Answer:

The answer is 50

Step-by-step explanation:

40-10=30

30+20=50

Every morning, Jim goes for a morning walk. His normal walking speed is 3 1/2 km per hour, and he walks a total distance of 10 km every day. How much time does he take to cover one km?

Hint 1 Notice the unit of Speed.

Hint 2 Can you figure out the distance covered in one hour​

Answers

Answer:

Jim's walking speed = 312kmph

covered distance = 10km

time taken for one hour = ?

we know that: Distance =speed × time

=>Time = Distance/speed

=> Time = 10/312=5/156 hours

= Time = (5×60)/156=300/156=75/39=1.9 minutes

Step-by-step explanation:

Find the slope of BG, and HL using the coordinates; B(-4, 3), G(-2, 4), H(1, -2), L(-1, -3). then determine if the lines are parallel.​

Answers

Answer:

0.5 or [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

BG = [tex]\frac{4-3}{-2--4}[/tex] = 0.5

HL = [tex]\frac{-3--2}{-1-1}[/tex] = 0.5

This mean that the lines are parallel ..

The population of a city has been increasing by 2% annually. In 2000, the population was 315,000. Predict the population of the city in 2020. Round your answer to the nearest thousand.​

Answers

Answer:

In 2020 there will be 468,073 people.

Step-by-step explanation:

Giving the following information:

Growth rate (g)= 2% = 0.02

Population 2,000= 315,000

Number of periods (n)= 20 years

To calculate the population in 2020, we need to use the following formula:

FV= PV*(1+g)^n

FV= 315,000*(1.02^20)

FV= 468,073

In 2020 there will be 468,073 people.


There are 8 red, 5 blue, and 2 green marbles in a hat. Without looking, you picked a blue marble. Without putting the blue
marble back, what is the probability of picking a green marble?

Answers

The answer of picking a green marble is 2/14 which is 1/7.

Answer:

1/3

Step-by-step explanation:

Please tell me if these questions are like or unlike!! (Math)

Answers

Answer:

1. like

2.unlike

3.unlike

4.like

5. ......

6. ......

Step-by-step explanation:

Answer:

The number 5 and 6 is both unlike

I hope i it help's you

Find the area of this figure around your answer to the nearest 100. use 3.14 to approximate 3.14 as pi

Answers

Answer:

Area = 49.12 ft²

Step-by-step explanation:

The area of the figure = area of triangle + area of half of a circle

= ½*bh + ½(πr²)

b = 6 ft

h = 8 ft

r = ½ of 8 ft = 4 ft

π = 3.14

Plug in the values

Area of the figure = ½*6*8 + ½(3.14*4²)

Area = 24 + 25.12

Area = 49.12 ft²

Answer:

49.12

Step-by-step explanation:

A circle that has a center at the origin and a diameter of 12

Answers

Answer:

A≈113.1

Step-by-step explanation:

A=πr2

A=π·62

A≈113.09734

A=113.1 is your answer have a great rest of your day :)

What is the domain?
(-∞,∞)

[0,∞)

(-∞,0]

-2, 2

Answers

Answer:

(-∞,∞)

Step-by-step explanation:

The domain is the possible x values, so for this function x^2 , the possible x values are all the values

(-infinity , infinity)

WILL MARK BRAINLYIST

Answers

Answer:

12

Step-by-step explanation:

You solve for x in 2 methods 7x+10=94 Or 4x-6=42

7x=84

x=12

If lines r and s are parallel, what would be the measurement of angle 6 if angle 1 was 2x+4 and angle 2 was 6x+8?

Answers

Answer: 134

Step-by-step explanation:

Angle 1 and 2 are supplementary and Angle 2 is congruent to Angle 6

Thus, first solve for x

8x+12=180

x = 21

Then solve for angle 2 which is congruent to angle 6

6(21) + 8 = 134


Help please please!!!!!

Answers

Answer:

x=28

Step-by-step explanation:

Look at attached image.

Help with Trig and special right triangles (PIC INCLUDED)

Answers

Answer:

sin a = cos C

sin C = AB/AC

tan a = BC/AB

PLEASE HELP ME WITH THIS ONE

Answers

the answer is B. 2

Both are close to 2 but a little under or a little over

Answer:

I want to say 2

Step-by-step explanation:

if you try to solve them you get 1.22.... and 2.82.... so 2 is in-between

PLEASE HELP WITH THIS BEST ANSWER GETS BRAINLIEST

This is an example of a random sample: The Student Council wants to survey 7th grade students about their favorite lunch food. They write down the names of all 7th grade students and put their names in a hat, then draw names to collect the sample of students to be asked.

True

False

Answers

True............................

Which polynomial represents the difference below? 10x^8 + 11x^6 - 2x + 5 - (8x8 + 6x7 - 5)​

Answers

Answer:

[tex]2x^8-6x^7+11x^6-2x+10[/tex]

Step-by-step explanation:

To find: [tex]10x^8+11x^6-2x+5-(8x^8+6x^7-5)[/tex]

Solution:

Like terms refer to terms with same variables and same powers.

Two like terms can be added or subtracted.

Consider the following expression:

[tex]10x^8+11x^6-2x+5-(8x^8+6x^7-5)=10x^8+11x^6-2x+5-8x^8-6x^7+5\\=(10-8)x^8-6x^7+11x^6-2x+(5+5)\\=2x^8-6x^7+11x^6-2x+10[/tex]

(Here, like terms are added or subtracted)

What three dimensional shape is made when you rotate a triangle horizontally?

Answers

Answer:

When you rotate a triangle horizontally, a cone is formed.

In ΔMNO, m = 55 inches, n = 48 inches and o=59 inches. Find the measure of ∠O to the nearest 10th of a degree.

Answers

Answer: 69.5 degree

please could i have help with this i get 336m and its not one of the choices

Answers

It’s 30m,
18msq/m + 4m x 3
= 18 m + 12m
= 30 m

Ellie shares 24 cupcakes with x friends, how many cupcakes does each friend get?

Answers

Answer:

24/ 1 + x

you would have to divide the cupcakes upon the friends.

4 ^-3 rewrite without an exponent

Answers

Answer:

(1/4)³

Step-by-step explanation:

Hope it helps you

Answer:

[tex]\frac{1}{64}[/tex]

Step-by-step explanation:

Negative exponents means you bring the base to the denominator, which becomes a fraction.

[tex]4^{-3} \\=\frac{1}{4^{3}}[/tex]

The question wants us to write without an exponent.

The [tex]4^{3} = 4 * 4* 4=64[/tex]

So, it becomes:

[tex]\frac{1}{64}[/tex]

For every hour that Jill worked, she made $10

Write an equation to model how much money she can make.?\


HELP

Answers

Answer how many hours did she work?

Step-by-step explanation:

5x10 but showing your work

Answers

Answer: 50

Step-by-step explanation: 5 times 10 means that there is going to be 5 10’s added together, so 10+10 = 20 + 10 + 10 = 40 + 10 = 50 so 5 times 10 is 50

¿cuál. es el. valor. nutricional total de la naranja ?​

Answers

Answer:

Las naranjas aportan cantidades importantes de vitamina C y folatos. Tienen un contenido apreciable de tiamina, vitamina A, calcio, potasio yfibra y destacable contenido de carotenoides y flavonoides.

Step-by-step explanation:

Answer:

Las naranjas aportan cantidades importantes de vitamina C y folatos. Tienen un contenido apreciable de tiamina, vitamina A, calcio, potasio yfibra y destacable contenido de carotenoides y flavonoides.

Step-by-step explanation:

Evaluate the expression: 8 ⋅ (1/2)^2

Answers

Answer:

2

Step-by-step explanation:

8 ⋅ (1/2)^2 = 8 * (1/2) * (1/2)

=4/2

=2

Need the answer been stuck on this

Answers

Answer:

19 cm³

Step-by-step explanation:

The figure cam be decomposed into two cuboid.

✔️Dimension of cuboid 1:

L = 2 cm

W = 1 cm

H = 8 - 3 = 5 cm

Volume = L * W * H

Volume = 2*1*5 = 10 cm³

✔️Dimension of cuboid 2:

L = 3 cm

W = 1 cm

H = 3 cm

Volume = L*W*H = 3*1*3

Volume = 9 cm³

✅Volume of the irregular figure = 10 + 9 = 19 cm³

A traveling circus with thrill rides Charge 7$ For admission $1.50 For each ride you take. If you pay $29.50 total, how many rides did you take?

Answers

Answer:

15 rides

Step-by-step explanation:

29.50 - 7 = 22.50

22.50 / 1.50 = 15

21 I think!! Hope this is right

A bag of sugar contains 420g. A
special offer packet contains an extra
15%. Work out how much extra sugar
is in the special offer packet.

Answers

Answer:

63g extra

Step-by-step explanation:

420 x 0.15 =63 g

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