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3 years ago

7

sally and marta Had the same number of postcards. After sally sold 18 of her postcards,Marta had 4 times as many post cards as s

ally How many post cards did each girl have to begin with?

1 answer:

bekas [8.4K]3 years ago

5 0

The answer is 20 okay

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Ater a blizzard the amount of snow on the ground melted by 3 inches one day and then another 8 inches the next day. Write an exp

Hoochie [10]

Answer:

11 inches

Step-by-step explanation:

Let the level of ground level be g

On first day, amount of snow melted by 3 inches

So, level of ground melted= (g- 3) inches

Next day, amount of snow melted by 8 inches

So, level of ground level melted = (g- 3-8 )inches

Hence, total change in the ground level = ( g- 11) inches

Hence, amount of snow on ground level melted by 11 inches

Hence, the correct answer is 11 inches

6 0

3 years ago

Which line is NOT a line of symmetry? photo above<br><br><br> Please HELP Me

MrRissso [65]

Answer: I believe it is "It also has a reflectional symmetry

Step-by-step explanation: Because even if you rotate the picture if you fold it in half it will fit perfectly with each other

4 0

2 years ago

Read 2 more answers

Mark is buying a game from an online store. He has not heard of the store or the online payment service before, but the price is

Semenov [28]

It could be B but I want to say D because it relates more to the question.

3 0

3 years ago

If the factors of function f are (x - 6) and (x - 1), what are the zeros of function f?

lidiya [134]

X=6 and x=1

You can find your zeros by determining what you have to plug into the function in order for it to equal zero

If we plug in 6, for example we’d get (6-6)(x-1)

Simplified this is 0(x-1)

Anything times 0 is 0, so this is one of our zeros.

Same goes for x-1, we just need to plug in 1 for it to equal 0

Therefore there are zeros at x=1 and x=6 :))

7 0

3 years ago

Preform the subtraction: (5x^2 -3xy +10y^2) - (12x^2 +11xz- 7z^2)

Rzqust [24]

we are given

$(5x^2 -3xy +10y^2) - (12x^2+11xz-7z^2)$

we have to subtract

step-1: Distribute negative sign

$=5x^2 -3xy +10y^2-12x^2-11xz+7z^2$

step-2:Combine like terms

$=5x^2 -12x^2-3xy -11xz+10y^2+7z^2$

$=-7x^2-3xy -11xz+10y^2+7z^2$

we get

$=-7x^2-3xy -11xz+10y^2+7z^2$ ............Answer

3 0

3 years ago