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2 years ago

6 identical toys weigh 1.8 kg.

Mathematics

1 answer:

Natali [406]2 years ago

7 0

Step-by-step explanation:

a)1.8kg=1.8*1000=1800g

b)6toys=1800

1toy=300g

c)4toys=4*300=1200g=1.2kg

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Complete the equation of the line through (-9,7) & (-6,-3)

scZoUnD [109]

Answer:

$y=-\frac{10}{3}x-23$

Step-by-step explanation:

we have the points

(-9,7) and (-6,-3)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{-3-7}{-6+9}$

$m=-\frac{10}{3}$

step 2

Find the equation in point slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{10}{3}$

$(x1,y1)=(-6,-3)$

substitute

$y+3=-\frac{10}{3}(x+6)$ ---> equation in point slope form

step 3

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$y+3=-\frac{10}{3}(x+6)$

Isolate the variable y

Distribute right side

$y+3=-\frac{10}{3}x-20$

subtract 3 both sides

$y=-\frac{10}{3}x-20-3$

$y=-\frac{10}{3}x-23$

7 0

3 years ago

I need help on this what's the answer for it 2/7 + 2/3 =

slava [35]

20/21 is the answer to your problem.

3 0

3 years ago

Read 2 more answers

Research studies show that the relationship between the tire pressure of a vehicle's tires and the life of the tires is

algol13

Answer:

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8 0

3 years ago

PLEASEEE HELP USER THATS CORRECT GETS 50 POINTS AND BRAINLY CROWN Using the diagram, name two pairs of complementary and two pai

SVETLANKA909090 [29]

Answer:

Complementary: (2,3) & (1,9)

Supplementary: (6,7) & (5,8)

Step-by-step explanation:

8 0

2 years ago

What's the answer? Can't figure it out

soldier1979 [14.2K]

9x⁹ - 90x⁸ - 351x⁷

What do each of these numbers have in common?

They ALL have 9x⁷ in them!

So, divide each one of these by 9x⁷

9x⁹ ÷ 9x⁷ = 9x²

-90x⁸ ÷ 9x⁷ = -9x

-351x⁷ ÷ 9x⁷ = -39

So, factorized completely, it is :

9x² - 9x - 39

~Hope I helped!~

4 0

3 years ago