Mathematics College

Can someone help me please

Answers

Answer 1

Answer:

15) 104 lbs

16) 263 miles

Step-by-step explanation:

15)

4/7 of their weight (182) = the water weight

4/7 × 182 = 104 lbs

16)

3.5 months = 920 miles

1 month = 920 ÷ 3.5

= 262.8571429 ≈ 263 miles

Answer 2

Answer:

15) 104 lb

16) 262 6/7 miles/month

Step-by-step explanation:

15)

4/7 * 182 lb = 4/7 * 182/1 lb = (4 * 182)/(7 * 1) lb = (4 * 7 * 26)/7 lb = 104 lb

Answer: 104 lb

16)

(920 miles)/(3 1/2 months) = (920 miles)/(7/2 months) =

= 920/1 miles * 2/(7 months) = (920 * 2 miles)/(7 months) =

= 1840/7 miles/month = 262 6/7 miles/month

Related Questions

Aman bought a computer for 24000 and its accessories pack worth for 1750. He sold it all for *26780. Find his gain and gain per cent.

Answers

Answer:

Step-by-step explanation:

Gain percentage = 1030/25750 x 100 = 4%

Answer:

$1,030, 4%

Step-by-step explanation:

Aman spent $25,750 on a computer and accessory packs (totally worth it). He sold it for $26,780. So let's say Aman is at 0 before he bought this. He spent $25,750, so we subtract that from 0 to get -25,750. Then he sells it all for $26,780 (again totally worth it for the person buying). So we add 26,780 to the total.

-25,750 + 26,780 = 1,030

So Aman made a profit of $1,030 (now he can buy a REASONABLY priced MacBook Air or something)

So to find the percentage that he gained, we divide 1,030 by his original spending price, namely 25,750

1,030/25,750 = 0.04

Convert that to percentage form, you get 4%

Also, it's questions like this that make me question whether the people who write these questions into the textbooks should be talked to lol.

Combine the like terms to create an equivalent expression:
−
2
k
−
(
−
5
)
+
1

Answers

Answer:

-2k + 6

Step-by-step explanation:

We start out with the expression -2k - (-5) + 1. We should first distribute the negative outside of (-5), which gets us to 5: -2k + 5 + 1. Now, we can combine like terms with 5 and 1 to get 6, giving us a final answer of -2k + 6. We can't simplify any further since there aren't any like terms.

If you have any questions or need clarification on anything, let me know!

Jake needs to buy 120beverages for a party. What equation, in standard form, determines the number x of 8-packs of juice and the number y of 12-packs of water Jake can buy?

Answers

Then, we multiply both sides by 0.80 , we then get 75.

We can check with 75 × 0.80 does equal to 60!

If this answer helped, consider marking this as brainliest!

Cheers!

Can someone please help me with this question

Answers

Answer:

40 degrees

Step-by-step explanation:

i'm use......

Mrs. Miller deposited a check for $245.83 and a check for $418.72. She went to a non-company ATM and withdrew $80. She was charged a fee of $2.50. What is her current balance if she started with $50 in her account?

Play media comment.

Group of answer choices

–$692.05

$632.05

$634.55

$639.55

Answers

Answer: Your answer should be B

Step-by-step explanation: Give brainliest if it works!

Does this look correct again?

Answers

Answer:

Correct

Step-by-step explanation:

This is correct because if you divide fourteen by one fourth the answer would be fifty-six teddy bears.

Assume that adults have IQ scores that are normally distributed with a mean of ?=100 and a standard deviation ?=20. Find the probability that a randomly selected adult has an IQ less than 140.

Answers

Answer:

The probability that a randomly selected adult has an IQ less than 140 is 0.9772

Step-by-step explanation:

Given:

Standard deviation: σ=20

Mean: μ=100

P(X<140)=?

Calculate:

normalcdf(lower,higher,μ,σ) = normalcdf(0,140,100,20) = 0.9772496509 ≈ 0.9772 ≈ 97.72%

6 (31 + 163 72)6 +2=

Answers

31 + 16372 = 16403

6 x 16403 = 98418

98418 x 6 = 590508

590508 + 2 = 590510

Estimate and solve 3,836 ÷ 63

Answers

Answer:

estimating it's 548/9

Step-by-step explanation:

If 2+√3/2-√3= a+b√3 Find a and b

Answers

Answer:

a = 7, b = 4

Step-by-step explanation:

Simplify the left side:

(2 + √3)/(2 - √3) = (2 + √3)(2 + √3)/(2 + √3)(2 - √3) =(4 + 4√3 + 3)/(4 - 3) =7 + 4√3

Compare with the right side:

a = 7, b = 4

Anyone know this? ..........

Answers

Answer:

Yes, Each value in the domain goes to only one value in the range.

Step-by-step explanation:

Since each x goes to a different y value, the relation is a function

Each value in the domain goes to only one value in the range.

yeeeeeeeeeeeeetaco avatar
yeeeeeeeeeeeeetaco
05/08/2021
Mathematics
High School
answered
Alex has some marbles.
Billie has three times as many marbles are Alex.
Chris has 9 fewer marbles than Billie.
In total they have 68 marbles.
How many marbles does Alex have?

Answers

can you say me from which cource is this

Some banks now use continuous compounding of an amount invested. In this case, the equation that models the value of an initial investment of P dollars in t years at an annual
interest rate of r is given by A = Pelt. Using this equation, find the value in 5 years of an investment of $2000 that earns 7% annual interest. (Round your answer to the nearest cent.)

Answers

Answer:

In this case, the equation that models the value of an initial investment of P dollars in t years at an annual interest rate of r is given by A = Pert.

Step-by-step explanation:

−4 1/3 ÷ (2 3/5)
For brainliest :3

Answers

Answer:

lskzjkkzjzbzniziakanzjs

Answer:

-5/3

Step-by-step explanation:

change numbers into fractions

KCF(keep change flip)

simplify

x-10<-26
help lololololol

Answers

Hope this will help you!! <3

Answer:

Step-by-step explanation:

1) -90 ≥ 18x

Divide both sides by 18

-90/18 ≥ 18x/18

-5 ≥ x

2)x/3 > -8

Multiply by 3,

3*(x/3) > -8*3

x> -24

3)x - 10 < -26

Add 10 to both sides

x < -26 +10

x < -16

4) 19 -x ≥ 21

Subtract 19 from both sides,

-x ≥ 21 - 19

-x ≥ 2

Divide both sides by (-1)

x < -2

A meter is a unit of length approximately equal to 39.37 inches. If someone is 77 meters tall, what is his or her approximate height in inches?

Answers

Answer:

It is 3031.49 Inches.

Step-by-step explanation:

77 times 39.37

= 3031.49

1. given w(x)=4x
a. graph r(x)=4 x w(x). then complete the table of corresponding points on r (x). How do you graph this?

Answers

Answer:

Step-by-step explanation:

a). When graph w(x) is transformed to r(x) = 4 × w(x), graph of w(x) is vertically stretched by a scale factor of 4.

Table for the corresponding points will be,

x w(x) r(x)

0 0 0×4 = 0

15 60 60×4 = 240

30 120 120×4 = 480

45 180 180×4 = 720

b). As discussed in part (a), graph of w(x) will be vertically stretched by a scale factor of 4 to produce the graph of r(x).

c). Since, w(x) = 4x

and r(x) = 4[w(x)]

r(x) = 4(4x) = 16x

r(x) = 16x

Which of the following functions has a maximum value of m, where m is a positive constant?
With explanation please.

Answers

The value of m in the fourth equation does not tend to zero, hence the function that has a maximum value of m, where m is a positive constant is[tex]f(x)=-(m+x)^2[/tex]: Option D is correct.

For any function to have a maximum, the differential of the function must be equal to zero.

If the functions in options A and B and C are differentiated and equated to zero, the values of m in each function will tend to zero as well.

For the function [tex]f(x)=-(m+x)^2[/tex]

[tex]f'(x) = -2(m+x)\times 1\\f'(x)=-2(m+x)\\0 = m+x\\m = -x[/tex]

Since the value of m in the fourth equation does not tend to zero, hence the function that has a maximum value of m, where m is a positive constant is[tex]f(x)=-(m+x)^2[/tex]

Learn more here: https://brainly.com/question/12185438

A worker gets paid overtime at the rate of normal time plus one third. One week he works 40 hours of normal time and 6 hours overtime. If his hourly rate is $15 how much did he earn for that week?

Answers

Answer:

$ 720

Step-by-step explanation:

Normal time $ 15

Overtime: 15 x 1/3 = $5 + $15 = $20

(40 x 15) + (6 x 20) = 600 + 120

PLEASE HELP ITS MATH THANK YOUUUU

Answers

9 inches = 14 yard

Formula: divide the value in inches by 36 because 1 yard equals 36 inches. So, 9 inches = 936 = 14 or 0.25 yard.

Answer:

4 yards

Step-by-step explanation:

Use a ratio and then cross multiply

120 yd x yd

--------- = ---------

270 in 9 in

270x = 1080

x= 1080 / 270

x = 4 yd

Will give brainliest answer

Answers

B, A

random text so that it would let me send.

how to find root hair

Answers

I'll proceed by evaluating total length and surface area by scanned images. For measurements, I suggest to use winrhizo or any similar software. In this case the most important thing to think about is to use the appropiate acquisition parameters, I mean, to set a good resolution during scanning. Pixels of the aquired image should be smaller than root hairs diameter. Therefore, let me try to suggest you a good acquisition resolution. Making a quick research, it seems that hair root diameters range between 0,012 and 0,017 mm, so I suggest a resolution that will give a pixel dimension of 0,002 mm. Root hair diameters should be composed by 6-8 pixels, that is enough for winrhizo measurements. Resolution is measured in dpi, so in "dots/pixel per inch". A inch is 25,4 mm. We need pixels with a diameter of 0,002 mm, so in 25,4 mm we found 12700 pixels. That means 12700 dpi. It's a very high resolution, you need a good scanner and much space in your computer.

PLS HELP
Worth 20 Points
Easy
I will give brainilest

Answers

Answer:

x-axis

Step-by-step explanation:

Answer:

Step-by-step explanation:

How much greater is the surface area of the rectangular prism than the surface area of the cube?

A. 36 cm2
B. 33 cm2
C. 18 cm2
D. 45 cm2

Answers

Answer: 18 cm2

Step-by-step explanation: the surface area of the cube is 54 cm2 and the rectangular prism is 72 cm2 so 72 - 54 = 18

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