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Karo-lina-s [1.5K]

4 years ago

13

8.21 Divided by 7.8=19.1

1 answer:

Mumz [18]4 years ago

7 0

Answer: Not true

Step-by-step explanation:

8.21 /7.8

8.21 × 100 divided by 7.8 ×100

821/780

= 1.05

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HELP PLS!!! ( see picture for the question )

Ulleksa [173]

Answer:

find the current mean(average), then add 10, last divide by 1.3

Step-by-step explanation:

3 0

3 years ago

The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is . What is the standard form of the

kvasek [131]

Answer:

Point-Slope form: $y+1=-\frac{6}{15}(x+5)\\$

standard form: $2x+5y=-15$

Step-by-step explanation:

The standard form is given by: $Ax+By=C$

The point-slope form is given by: $y-y_1=m(x-x_1)$

<em>Let's call $(-5,-1)$ as point $(x_1,y_1)$ , and</em>

<em>point $(10,-7)$ as point $(x_2,y_2)$ </em>

<em>We also know that the slope $m$ is given by $m=\frac{y_2-y_1}{x_2-x_1}$ </em>

Let's find the slope:

$m=\frac{-7-(-1)}{10-(-5)}=-\frac{6}{15}$

1. So, point slope form can be written as:

$y-(-1)=-\frac{6}{15}(x-(-5))\\y+1=-\frac{6}{15}(x+5)\\$

2. Rearranging this equation and bringing all x's and y's to one side and the number to another side will give us the standard form. So:

$y+1=-\frac{6}{15}x-2\\y+\frac{6}{15}x=-2-1\\y+\frac{6}{15}x=-3$

<em>But A, B, and C (standard form) needs to be integers, so to get rid of the denominator , we multiply the whole equation by 15. So we have:</em>

$y+\frac{6}{15}x=-3\\15y+6x=-45$

<em>We can factor out a 3, so it becomes:</em>

$15y+6x=-45\\5y+2x=-15$

So standard form is $2x+5y=-15$

8 0

4 years ago

Of 75is90 =120 true or false

Mariana [72]

Answer:

False

Step-by-step explanation:

8 0

3 years ago

Mhanifa please help! I will mark brainliest! I really don’t know how to do this! Random answers will be reported

BartSMP [9]

I believe the value of y is -28

also believe m
25 is 57.4

6 0

3 years ago

Read 2 more answers

Solve for x: 3x - 24 = 81<br> A-57/3<br> B-105/3<br> C-57<br> D-105<br> Helpppp please

expeople1 [14]

$Solution,solve\:for\:x,\:3x-24=81\quad :\quad x=35$

$Steps: 3x-24=81$

$\mathrm{Add\:}24\mathrm{\:to\:both\:sides}, 3x-24+24=81+24$

$\mathrm{Simplify}, 3x=105$

$\mathrm{Divide\:both\:sides\:by\:}3, \frac{3x}{3}=\frac{105}{3}$

$Simplify, x=35$

The correct answer is <u><em>B. 105/3</em></u>

<u><em>Hope this helps!!!</em></u>

<3 - austint1414

5 0

3 years ago