HeLp HelP please please

Answer:

The other number is 14

Hope this helps (:

Answer:

35

Step-by-step explanation:

Let's make an equation. Suppose the "number" is x.

2(x)+16=86

Subtract 16 from both sides

2x=70

Divide by 2 on both sides

x=35

Answer:

$145 - $105 ≤ $40

Step-by-step explanation:

Amount earned = $145

Amount to save = $105

Amount to spend, s = $145 - $105

= $40

The inequality is

Amount earned - Amount to save ≤ Amount to spend

$145 - $105 ≤ s

$145 - $105 ≤ $40

Answer:

1.5

Step-by-step explanation:

Think of a number line, on the number line are the points 1 and 2, the number between those points is the midpoint.

You can also average 1 and 2 to get the midpoint. To average any number sequence, simply add all of the numbers and then divide the sum of those numbers by the amount of numbers there are.

In this case add 1 and 2 to get 3 then divide 3 by 2 (because there are two numbers) to get 1.5

The midpoint between 1 and 2 is 1.5.

A location that is halfway between two other points is considered to be a line segment's midway. The distance between the midway and each endpoint is the same.

Given points are 1 and 2. The midpoint is calculated by using the formula as ( x₁ + x₂ ) / 2.

Average 1 and 2 to get the midpoint. To average any number sequence, simply add all of the numbers and then divide the sum of those numbers by the number of numbers there are.

The midpoint will be calculated as:-

M = ( x₁ + x₂ ) / 2.

M = ( 1 + 2 ) / 2.

M = ( 3 ) / 2.

M = 1.5

Therefore, the midpoint between 1 and 2 is 1.5.

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Answer:

360

Step-by-step explanation:

the train is going 60 mph. 60*6=360

Answer:

I assume you can do the simple calculations to get the full answer

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)

Answer:

Thus, the y-intercept of the line is 7

Step-by-step explanation:

One given line can be expressed with the slope-intercept form as follows:

[tex]y=mx+b\qquad\qquad [1][/tex]

Where m is the slope of the line and b is the y-intercept.

We are given the following equation of the line:

7x-4y=-28

Let's transform the equation to look like the slope-intercept form [1].

Subtract 7x:

-4y=-7x-28

Divide by -4:

y=7/4x+7

Comparing with the equation [1]:

m=7/4

b=7

Thus, the y-intercept of the line is 7

Answer:

[tex]h(t) = -5(t-2)^2+20[/tex]

20 meters

Step-by-step explanation:

The vertex form of the equation is h(t) = -5(t-2)^2 - 4 and the ball was 20 meters above the ground

The standard vertex form of a quadratic equation is expressed as (a-h)^2 + k

Given the height of the ball (in meters above the ground) t seconds after Sara kicked it is modelled by h(t)=-5t^2+20t

Write in vertex form

h(t)=-5t^2+20t

h(t) = -5(t^2 - 4t)
h(t) = -5(t^2 - 4t + 2^2) - 2^2
h(t) = -5(t-2)^2 - 4

Hence the vertex form of the equation is h(t) = -5(t-2)^2 - 4

At the highest point t = -b/2a
t = -20/2(-5)
t = -20/-10
t = 2ssecs

Substitute t = 2 into the function

h(2) = -5(2)^2 + 20(2)
h(2) = -20 + 40
h(2) = 20 meters

Hence the ball was 20 meters above the ground

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Answer:

December (A)

Step-by-step explanation:

The growth per month on average is 25 people, if you continue that through June-December she will reach 375 at December.

Answer:36 weeks

Step-by-step explanation:

1757/50=35.1

Answer:

11

Step-by-step explanation:

f(t) = 2t - 3

substitute t for 7

f(7) = 2*7 - 3

f(7) = 14 - 3

f(7) = 11

Answer:

Step-by-step explanation:

Amount of cabbage bought = 6 heads of cabbage

Weight of one cabbage = 2 3/8 pounds

6 cabbage will weight x pounds

Use the equality postulate to find x:

1 cabbage = 19/8 pounds

6 cabbages = x pounds

Cross multiply

1 * x = 6 * 19/8

x = 114/8

x = 14 2/8

x = 14 1/4

Hence the cabbage altogether will weight 14 1/4 pounds

Answer:

M=104

Step-by-step explanation:

8 times 13 equals 104. Therefore is you divide by 8, you get 13 and vice versa

Answer: x^2+3x+5

Step-by-step explanation:

Substitute (x+4) in so that you get f(x)=(x+4)^2-5(x+4)+9. Then expand so you get x^2+8x+16-5x-20+9. Now simplify and you get x^2+3x+5. That is your final answer.

Answer:

Amount of 22% acid solution needed = 29 ml

Amount of 8% acid solution needed = 72 ml

Step-by-step explanation:

Let x=amount of 22% solution needed

Then 101 - x= amount of 8% solution needed

The pure acid in the 22% solution (0.22x) plus the amount of pure acid in the 8% solution 0.08(101 - x) has to equal the amount of pure acid in the final mixture (0.12*101).

The equation to solve is:

0.22x + 0.08(101 - x) = (0.12*101)

0.22x + 8.08 - 0.08x = 12.12

0.14x = 12.12 - 8.08

0.14x = 4.04

x = 4.04 / 0.14

= 28.86

x = 29 ml to the nearest ml

Amount of 22% acid solution needed = 29 ml

Amount of 8% acid solution needed = 101 - x

= 101 - 29

= 72ml

Answer:

Volume

Step-by-step explanation:

x axis is always independant y axis is always dependant

Answer:

Total area of paint = 110 ft²

Step-by-step explanation:

Given:

Measurement of wall = 10 feet tall by 13 feet wide

Measurement window = 2.5 feet wide by 4 feet tall each

Find:

Total area of paint

Computation:

Total area of paint = Area of wall - 2[Area of window]

Total area of paint = [10 x 13] - 2[2.5 x 4]

Total area of paint = [130] - [20]

Total area of paint = 110 ft²

The area of the wall Brenda is going to paint = 110 sq. ft.

Recall:

Given:

Measurement of the wall = 10 feet tall by 13 feet wide

Area of the wall = 10 × 13 = 130 sq. ft

Measurement of a window = 2.5 feet wide by 4 feet tall

Area of a window = 2.5 × 4 = 10 sq. ft

The windows won't be painted, therefore, the area of the wall that Brenda is going to paint = Total area of the wall - 2(Area of a window)

Area of the wall to be painted = 130 - 2(10)

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Answer:

The trip will take 4.8 hours

Step-by-step explanation:

Firstly, we need to calculate the distance from Boston to Washington

Mathematically:

Distance = speed * time

Distance = 80 mph * 6 hours = 480 miles

Now we want to calculate the time it will take a train that travels at a speed of 100 mph

Mathematically;

time = distance/speed

time = 480/100 = 4.8 hours

Answer:

2√10

Step-by-step explanation:

√5*√8

=√40

simplify:

2√10

Answer:

36 bottles for $4

Step-by-step explanation:

First you need to calculate the price for one bottle, the lower the cost, the better buy. Do this by dividing the price by the amount of bottles:

= $3 ÷ 24

= 0.125 cents

= $4 ÷ 36

= 0.111 cents

The cheaper option and the better buy is the 36 bottles for $4.

Answer:

Its the one all the way to the right.

Step-by-step explanation:

Answer:

Options (C) and (E)

Step-by-step explanation:

Given polynomial is,

6x⁴+ 4x³- 7x² + 5x + 8

So all the polynomials which are (look alike) similar in terms of degree and number of terms to the given expression will be equivalent.

Option (A).

[tex]16x^{10}[/tex]

It's a monomial. So not the answer.

Option (B).

6x⁵ + 4x⁴ - 7x³ + 5x² + 8

This polynomial is a 5th degree polynomial, will not be equivalent to the given polynomial expression with 4 degree.

Option (C).

6x⁴ + 4x³ - 7x² + 5x + 8

All the terms and signs between the terms of this expression are similar to the given polynomial expression,  

Expression will be equivalent to the given polynomial expression.

Option (D)

8 + 5x + 7x² - 4x³ + 6x⁴

= 6x⁴- 4x³ + 7x² + 5x + 8

Both are similar in number of terms and degree but signs between the terms are different.

Therefore, both the expressions are will not be equivalent.

Option (E).

8 + 5x - 7x² + 4x³ + 6x⁴

= 6x⁴ + 4x³ - 7x² + 5x + 8

Since, both the polynomials are similar so they are equivalent.

Answer:

Lo siento, no puedo ayudarte, ya es debido

Answer:

40%

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

Answer:

You multiply the 15 and 140 by four. Then you will have your 60 minutes which equals an hour and your 560 calories per hour.

Step-by-step explanation:

Answer:

I answered in the picture

Answer:

1846 - 21.37% increase

1847 - 7.75% decrease

1848 - 9.92% increase

Hope this helps!

Answer:

Equation is 7n-9, a10=61

Step-by-step explanation:

nth term of an arithmetic sequence with first term a and common difference d is a+(n-1)d

Here, a=-2 , d=7

nth term is -2+(n-1)7=7n-9

a10=7*10-9=70-9=61

Answer:  37.5 minutes

Step-by-step explanation:

1. divide 52 by 13

52/13 = 4

2. take divide 150 (minutes in 2.5 hours) by 4

150/4 = 37.5

your answer is 37.5 minutes