Sarah goes up a hill and then down again the same way. On the way up she averages 2 miles per hour. On the way down she averages 4 miles per hour. What is Sarah’s average speed in miles per hour for the whole journey? Give an exact answer.

You leaned the ladder against your house at a 30 degrees angle -> This create a right triangle, with a 30 degree angle and your ladder is the hypotenuse.

The foot of the ladder is 7 feet from the foot of your house -> The opposite side = 7 feet

In a right triangle, the side that is opposite to a 30 degree angle = 1/2 of the hypotenuse

Since your ladder is the hypotenuse, and the opposite side is opposite to the 30 degree angle, your ladder is 7 x 2 = 14 ft long.

Answer: If a magazine costs $2.35 and has a 6% sales tax, then what is the total cost of the item. First, we need to convert the sales tax percentage into a decimal

Step-by-step explanation:

Step-by-step explanation:

it's an isosceles triangle

ht will intersect the base at 90°

so x^2 =33^2+15^2

x = 36.2

Answer:

10

Step-by-step explanation:

Substitute 4 for x to solve the expression:

[tex]3x-2\\3(4)-2\\12-2\\10[/tex]

Answer:

d

Step-by-step explanation:

The correct recursive formula which models the value of his truck after each year is,

⇒ 13,000 (0.85)ⁿ

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

To Calculate the percent of a number , divide the number by whole number and multiply by 100.

Given that;

Junior bought a work truck for $13,000.

And, The value of his truck will depreciate, or decrease, by 15% each year.

Hence, We get;

The correct recursive formula which models the value of his truck after each year is,

⇒ 13,000 (1 - 15/100)ⁿ

⇒ 13,000 (1 - 0.15)ⁿ

⇒ 13,000 (0.85)ⁿ

Thus, The correct recursive formula which models the value of his truck after each year is,

⇒ 13,000 (0.85)ⁿ

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Answer:

100.10000

Step-by-step explanation:

Because tenth is 1rst number behind decimal so 1. and 1 is asking it's neighbor hundredths/1 for helps and since 1 is 4 and below it can't go up so it stays the same at 1.

Hope it helps have a great day:)

Answer: 5,400 cubic feet

Step-by-step explanation: Multiply 90 x 15 x 4 to find the volume. Although I multiplied 15 and 4 first because I know off the top of my head that it equals 60, and 60 x 90 = 5400 cubic feet

Answer:

Solution=−72

Step-by-step explanation:

Combine multiplied terms into a single fraction−18=14−18=14. Multiply by 1. Multiply all terms by the same value to eliminate fraction denominators. Cancel multiplied terms that are in the denominator. Multiply the numbers. Move the variable to the left.

this is pretty simple! there are three dictionaries.

if all three dictionaries together have 1200 words, then each dictionary will have 1/3 of 1200 words. this is 400.

if each dictionary has 400 words, eight dictionaries will have 400*8 which is 3200 words.

Answer: See below

Step-by-step explanation:

Weight of concrete nails - weight of concrete nails used = weight of concrete nails left

3.35 – 1.23 = 2.12

Weight of concrete nails left * number of workers = total weight of concrete nails

2.12 x 8 = 16.96

There are 2.12 kgs of concrete nails left in each of the boxes and there are 16.96 kgs of concrete nails altogether

Answer: 68

Step-by-step explanation:

Answer:

the answer is 68

Explanation:

Answer:

a’s average speed is 60km/h

Step-by-step explanation:

x = a’s average speed

60/40 = 90/x

Cross multiplication:

60x = 40x90

60x=3600

Divide both sides  by 60

x= 60

Person A's average speed is 60 km/h.

Speed is the ratio of the given distance and time.

It shows how fast an object is moving at a given time.

The formula is Distance / Time.

We can find the distance or time when the required values are given using this formula.

We have,

We can start by using the formula:

Distance = speed x time

Let's denote A's average speed as "S" and the time taken for both A and B as "T".

For person B, we have:

60 = 40 x T

Solving for T, we get:

T = 1.5 hours

Now we can use the same formula for person A:

90 = S x 1.5

Solving for S, we get:

S = 60 km/h

Therefore,

Person A's average speed is 60 km/h.

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Answer:

100

Step-by-step explanation:

if you are doing this you need to do 50x2 which in this case equals = 100

Answer:

x = 6 is a solution of x - 1 [tex]\leq[/tex] 7.

Step-by-step explanation:

First, plug in x = 6 into the inequality.

x - 1 [tex]\leq[/tex] 7 for x = 6

6 - 1 [tex]\leq[/tex] 7

Now, solve.

6 - 1 = 5

5 [tex]\leq[/tex] 7

The statement above is true, so x = 6 is a solution to x - 1 [tex]\leq[/tex] 7.

Please inform me of any mistakes.

Answer:

approx. 376.8mm

Formula = 2r×pi

Step-by-step explanation:

Hope this Helps!!!

Answer:

C. f(x)= |3x -8|

Step-by-step explanation:

*view attached graph*

Answer:

that's circumference is probably 11

Answer:

a. geometric sequence

b. an = 5(2)^n-1

c. an+1 = an x 2

Step-by-step explanation:

The sequence: 5, 10, 20, 40,...

a. The sequence is geometric because the sequence has a common ratio of 2, each number is made by multiplying the previous number with the common ratio (2).

b. The explicit formula for this sequence is an = 5(2)^n-1

The explicit formula for a geometric sequence is

an = a1 (r)^n-1

Substituting that with the values we know, we will get

an = 5(2)^n-1

c. The recursive formula for this sequence is an+1 = an x 2

The recursive formula for a geometric sequence is

an+1 = an x r

Substituting for the values we know, we get

an+1 = an x 2

Let me know in the comments if you have any questions! If you could mark this answer as brainliest, I would very much appreciate it

Answer:

30

Step-by-step explanation:

The Pythagorean Theorem is c2 (c squared) = a2 (a squared) + b2  (b squared).

The side lengths (24 and 18) can be plugged in for a and b. C is the length of the hypotenuse.

24 Squared + 18 Squared= c squared

Use a calculator to help you.

24 squared is 576

18 squared is 324

So, 576+324=c squared

Simplify

900=c squared

Now use the squre root on both sides to get rid of the c squared. (use a calculator)

30=c

Answer:

Answer is 6x-13

Step-by-step explanation:

Given

XZ=8x-18 and RZ=2x+5

XR=XZ-RZ

8x-18-2x+5

8x-2x-18+5

6x-13Ans

Answer:

The answer is B.

Step-by-step explanation:

Point A is on (-6,7) is you move it two left and 2 up it changes to the point (-8,9)

Hope this helped.

A brainliest is always appreciated.

Answer:

0.365 kg

Step-by-step explanation:

I hope this explains it and helps :)

Answer:Answer:

0.365 kg

Step-by-step explanation:

The first I did was turn the 250mg to grams so the conversion factor would be 1 milligram = 0.0001 gram.

Divide the 250mg by 1000g to get 0.25g.

Multiply 0.25g by 60 to get 15g.

Add 15g to the weight of the empty basket, 350g. You should end up with 365g.

The question asked for kilograms so divide 365g by 1000.

The final answer is 0.365kg.

I hope this explains it and helps :)

Still stuck? Get 1-on-1 help from an expert tutor now.

Step-by-step explanation:

Answer:

3 and 47

7 and 43

19 and 31

Step-by-step explanation:

Prime numbers up to 50:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47

Therefore,

3 + 47 = 50

7 + 43 = 50

19 + 31 = 50

Answer:

C)

Step-by-step explanation:

Given:

[tex]a_1=6=1+5\\\\a_2=7=2+5\\\\a_3=8=3+5\\\\a_4=9=4+5[/tex]

[tex]\implies a_n=n+5[/tex]

Hello.

The first fraction is

[tex]\displaystyle\frac{9}{15}[/tex]

Both the top and bottom can be divided by 3:

[tex]\displaystyle\frac{3}{5}[/tex] (Simplest Form)

Next fraction:

[tex]\displaystyle\frac{15}{40} =\frac{3}{8}[/tex]

We divided the top & bottom by 5.

Next:

[tex]\displaystyle\frac{20}{35}[/tex]

Divide the top & bottom by 5:

[tex]\displaystyle\frac{5}{7}[/tex]

Next:

[tex]\displaystyle\frac{12}{20} \\\text{Divide by 4:}\\\displaystyle\frac{3}{5}[/tex]

Next:

[tex]\displaystyle\frac{44}{48} =\frac{11}{12}[/tex]

Next:

[tex]\displaystyle\frac{5}{60} =\frac{1}{12}[/tex]

Next:

[tex]\displaystyle\frac{10}{24} =\frac{5}{12}[/tex]

next:

[tex]\displaystyle\frac{25}{30} =\frac{5}{6}[/tex]

next:

[tex]\displaystyle\frac{10}{18} =\frac{2}{9}[/tex]

next:

[tex]\displaystyle\frac{28}{40} =\frac{14}{20} =\frac{7}{10}[/tex]

[tex]\displaystyle\frac{8}{10} =\frac{4}{5}[/tex]

[tex]\displaystyle\frac{3}{9} =\frac{1}{3}[/tex]

[tex]\displaystyle\frac{15}{20} =\frac{3}{4}[/tex]

[tex]\displaystyle\frac{6}{9} =\frac{2}{3}[/tex]

[tex]\displaystyle\frac{20}{32} =\frac{5}{8}[/tex]

[tex]\displaystyle\frac{5}{35} =\frac{1}{7}[/tex]

[tex]\displaystyle\frac{2}{8} =\frac{1}{4}[/tex]

[tex]\displaystyle\frac{2}{20} =\frac{1}{10}[/tex]

[tex]\displaystyle\frac{33}{36} =\frac{11}{12}[/tex]

[tex]\displaystyle\frac{15}{40} =\frac{3}{8}[/tex]

[tex]\displaystyle\frac{32}{36}=\frac{8}{9}[/tex]

[tex]\displaystyle\frac{14}{20} =\frac{7}{10}[/tex]

I hope it helps.

Have a great day.

[tex]\boxed{imperturbability}[/tex]