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lesya692 [45]
2 years ago
12

Simplify completely -4m(9m+5)​

Mathematics
2 answers:
harina [27]2 years ago
3 0

Answer:4x

Step-by-step explanation:

Alekssandra [29.7K]2 years ago
3 0

Answer:

−36m2−20m

Step-by-step explanation:

Multiply yy by yy by adding the exponents.

−4⋅9m2−20m-4⋅9m2-20m

Multiply −4-4 by 99.

−36m2−20m

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andre is writing a paper for science class he can type 30 words per minute what is the ratio of words to minutes
soldi70 [24.7K]

Answer:

30words

60

30/ 60 = 1/2

The ratio is 1:2

Thank you and please rate me as brainliest as it will help me to level up

7 0
3 years ago
Jerry says that if a store has a sale for 35% off and the sale price of a stairmaster is $137, then you can figure out what the
wel
Don't know if it's right, but do let me know! use percentage to visualise your workings. :)

7 0
2 years ago
I need help and steps of how u got it
Gnom [1K]

Answer:

A)  4

Step-by-step explanation:

There are a couple of ways to get this but this is how I did it:

1.  Multiply the second equation by 1/4 to get the same fraction for y as the one in the first equation

1/4 x + 1/8 y = 2

1/4 (1/3 x + 1/2 y = 4)

1/12 x + 1/8 y = 1

2.  Subtract the first equation from the new equation

    1/12 x + 1/8 y = 1

<u>    - 1/4 x - 1/8 y = -2</u>

-1/6 x= -1

3.  Divide both sides by -1/6

  <u>-1/6</u> x= <u>-1</u>

   -1/6    -1/6

     x = 6

4. Substitute 4 in for x in the original equation:

1/4 (6) + 1/8y = 2

6/4 + 1/8y = 2

1/8y = 1/2

  y = 4

3 0
3 years ago
Chen is bringing fruit and veggies to serve at an afternoon meeting. He spends a total of $28.70 on 5 pints of cut veggies and 7
cricket20 [7]

Answer:

The price of a pint of veggies is $1.75

Step-by-step explanation:

* Lets change the story problem to equations and solve them to find

 the answer

- Chen is bringing fruit and veggies to serve at an afternoon meeting

- He spends a total of $28.70 on 5 pints of cut veggies and 7 pints

 of cut fruit

- The food cost is modeled by the equation 5 v + 7 f = 28.70, where

  v represents the cost of one pint of cut veggies and f represents

  the cost of one pint of cut fruit

∴ The first equation is 5 v + 7 f = 28.70 ⇒ (1)

- The cost of each pint of fruit is $2.85

∵ f represents the cost of one pint of cut fruit

∴ f = 2.85

- Substitute the value of f in equation (1) to find the value of v

∵ 5 v + 7 f = 28.70 ⇒ (1)

∵ f = 2.85

∴ 5 v + 7 (2.85) = 28.70

∴ 5 v + 19.95 = 28.70

- Subtract 19.95 from each side

∴ 5 v = 8.75

- Divide both sides by 5

∴ v = 1.75

∵  v represents the cost of one pint of cut veggies

∴ The price of a pint of veggies is $1.75

7 0
3 years ago
Solve 3^2x-5=81<br> Please show work
Strike441 [17]
Let's solve your equation step by step
(3^2)(x)-5=81
step 1:simplify both sides of the equation
(3^2)(x)-5=81
simplify.
9x-5=81
step 2:Add 5 to both sides.
9x-5+5=81+5
9x=86
divide both sides by 9.
9x/9=86/9
x=86/9
Answer:86/9

Hope this helps!
5 0
3 years ago
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