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3 years ago

Please someone help me with this question4x-3=2x+7

Mathematics

2 answers:

ruslelena [56]3 years ago

6 0

X = 5

more words because it wont send ;-;

Tasya [4]3 years ago

6 0

Answer:

x=5

Step-by-step explanation:

4x-3+3=2x+7+3

4x=2x+10

4x-2x=2x+10-2x

2x=10

10/2=5

x=5

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Emily is preparing cookies for her friends she is at the market where she sees a 14 ounce bag of chocolate chips for 3.50 the ma

g100num [7]

Answer:

Bag 2

Step-by-step explanation:

Given

Bag 1:

$14\ ounce = 3.50$

Bag 2:

$24\ ounce = 5.28$

Required

Which is a better buy

To get which buy is better, we first get the unit price of each bag.

$Unit\ Price = Amount/Size$

For bag 1:

$Unit\ Price = 3.50/14$

$Unit\ Price = 0.25$

For bag 2:

$Unit\ Price = 5.28/24$

$Unit\ Price = 0.22$

The best buy is the one with smaller unit price

Hence, bag 2 is better to buy

4 0

3 years ago

Write an equation that shows the relationship 64% of why is 40

DerKrebs [107]

Answer:

I am not share what the question is, can you please rephrase the question.

Step-by-step explanation:

3 0

4 years ago

Which ratio is equivalent to 9/27 A. 6/9 B. 1/2 C. 1/3 D. 3/12

shusha [124]

The correct answer is c.

a.6/9

b.1/2

c.1/3

d.3/12

8 0

4 years ago

Helppop!!A car and van are driving on a highway. The table shows the amount y (in gallons) of gas in the cars gas tank after dri

Korvikt [17]

Answer:

The car uses less gas

They use the same amount of gas after $\frac{640}{7}$ miles

Step-by-step explanation:

Given

The table represents the car mileage

$y = -\frac{1}{5}x + 31$ --- The van

First, calculate the car's slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

From the table, we have:

$(x_1,y_1) = (60,13.5);\ \ (x_2,y_2) = (180,10.5)$

So, we have:

$m = \frac{10.5 - 13.5}{180 - 60}$

$m = \frac{-3}{120}$

$m = -\frac{1}{40}$

Calculate the equation using:

$y = -\frac{1}{40}(x - 60)+13.5$

$y = -\frac{1}{40}x + 1.5+13.5$

$y = -\frac{1}{40}x + 15$

$m = -\frac{1}{40}$ implies that for every mile traveled, the car uses 1/40 gallon of gas

Also:

$y = -\frac{1}{5}x + 31$ --- The van

By comparison to: $y = mx + b$

$m = -\frac{1}{5}$

This implies that for every mile traveled, the van uses 1/5 gallon of gas.

By comparison:

$1/40 < 1/5$

This means that the car uses less gas

Solving (b): Distance traveled for them to use the same amount of gas.

We have:

$y = -\frac{1}{5}x + 31$ --- The van

$y = -\frac{1}{40}x + 15$ --- The car

Equate both

$-\frac{1}{5}x + 31 =-\frac{1}{40}x + 15$

Collect like terms

$\frac{1}{40}x -\frac{1}{5}x =-31 + 15$

$\frac{1}{40}x -\frac{1}{5}x =-16$

Take LCM

$\frac{x - 8x}{40} = -16$

$\frac{- 7x}{40} = -16$

Solve for -7x

$-7x = -640$

Solve for x

$x = \frac{640}{7}$

5 0

3 years ago

Jon is hanging a picture. He wants to center it horizontally on the wall. The picture is 32 1/2 inches long, and the wall is 120

frozen [14]

Answer:

44.125 inches

Step-by-step explanation:

Given that:

Length of picture = 32 1/2 inches

Length of wall = 120 3/4 inches

Hence, to center picture horizontally ;

Distance from the edge of the wall in which the picture should be placed :

(Length of wall - length of picture) / 2

(120 3/4 - 32 1/2) / 2

(483/4 - 65/2) / 2

Take the L. C. M of 4 and 2 = 4

((483 - 130) / 4) ÷ 2

(353 / 4) ÷ 2

(353 / 4) * (1 / 2)

= 353 / 8

= 44 1/8

= 44.125 inches

8 0

3 years ago

Please someone help me with this question4x-3=2x+7​

Please someone help me with this question4x-3=2x+7