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3 years ago

Write the word sentence as an inequality. Then solve the inequality.

Mathematics

1 answer:

ss7ja [257]3 years ago

6 0

Answer:

x/7<-3

x<-21

Step-by-step explanation:

x/7<-3

multiply the seven to get rid of x denominator

x<-21

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Hii pls help i’ll give brainliest if you give a correct answer

Alina [70]

Answer:

east to west i think im not too sure

7 0

3 years ago

Read 2 more answers

Which equation has no solution?

konstantin123 [22]

Answer:

B) 4x-5-3x=x+5 has no solution.

Step-by-step explanation:

A) 4x+4=4-4x

4x-(-4x)+4=4

4x+4x+4=4

8x+4=4

8x=4-4

8x=0

x=0/8

x=0

------------------

B) 4x-5-3x=x+5

4x-3x-5=x+5

x-5=x+5

x-x-5=5

-5=5

no solution.

------------------------

C) 4x+15-9x=5x+15

4x-9x+15=5x+15

-5x+15=5x+15

-5x-5x+15=15

-10x+15=15

-10x=15-15

-10x=0

x=0/-10

x=0

------------------------

D) 4x+2-x=4+3x-2

3x+2=3x+4-2

3x+2=3x+2

infinitely many solutions.

8 0

2 years ago

Help please! I’ll give brainliest.

Lapatulllka [165]

9514 1404 393

Answer:

(a) not proportional

(b) k = 7/8

Step-by-step explanation:

When a linear equation is of the form ...

y = mx + b

with b ≠ 0, the relation is NOT PROPORTIONAL.

If b=0, so the equation is of the form ...

y = kx

then the relation IS PROPORTIONAL. The constant of proportionality is k.

(a) Not proportional

(b) Proportional with k = 7/8

8 0

3 years ago

Simplify the expression: –3(3 + 2n)

noname [10]

Answer:

-9 - 6n is the answer

8 0

3 years ago

Read 2 more answers

N Example 3, the points are(0,3500) and (5,1750). Write an equation that represents the distance y (in feet) remaining after x m

Cerrena [4.2K]

Answer:

<h2>The time needed is 10 months.</h2>

Step-by-step explanation:

The given points are (0, 3500) and (5, 1750).

First, we use the formula below to find the slope of the line

$m=\frac{y_{2}-y_{1} }{x_{2} -x_{1} }=\frac{1750-3500}{5-0}=\frac{-1750}{5}=-350$

Which means the function is deacrasing with a ratio of 350 feet per month.

Now, we use the slope and one point to find the equation

$y-y_{1} =m(x-x_{1} )\\y-1750=-350(x-5)\\y=-350x+1750+1750\\y=-350x+3500$

This linear function shows that the situation started at the y-intecept (0, 3500), which means the month 0 had already 3500 feet. In other words, the total distance is 3500 feet. Now, the x-intercept will tell us the time needed to travel that distance.

$0=-350x+3500\\-3500=-350x\\x=\frac{-3500}{-350}\\ x=10$

Therefore, the time needed is 10 months.

3 0

3 years ago