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3 years ago

Sara has 10 apples and four bannas she gives Peter 2 apples how many do Sara has left

Mathematics

2 answers:

rusak2 [61]3 years ago

4 0

8 Apples and 4 bananas

Leya [2.2K]3 years ago

4 0

U have 8 apples left an 4 bananas still

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Tyrone weighed 1 box of macaroni on a scale and found it weighed 0.6 pounds. What could Tyrone do to find the total weight of 10

ollegr [7]

Answer:

He could multiply the amount one box ways by 100, or 0.6*100.

Step-by-step explanation:

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3 years ago

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What is RT, OB, and US equal PLEASE HELP !!!

Lina20 [59]

Answer:

RT = 20, BT = 19, US = 9

Step-by-step explanation:

You calculate the other letters: IR only R is 2, UT, T = 0 and B = 1. US, U = 0 and S = 9.

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4 years ago

PLEASEE HELPppp. Will give brainliest :)))))) Enter the coordinates of the vertices of (r(180°, O) ∘ T⟨3, –2⟩)(QRST).

nignag [31]

Answer:

(x, y) → (-x, -y)

Q"(4, 1) → Q'(-4, -1)

R"(6, -5) → R'(-6, 5)

S"(3, -4) → S'(-3, 4)

T"(1, -1) → T'(-1, 1)

Step-by-step explanation:

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3 years ago

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The expression (2x^2+6x+5)-(6x^2+3x+5) is equivalent to

oksano4ka [1.4K]

Answer:

-4x^2+3x

Step-by-step explanation:

collect like terms

(2x^2-6x^2) + (6x-3x) + (5-5)

simplify

-4x^2 + 3x

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4 years ago

Find the dimensions of a rectangle (in m) with area 1,000 m2 whose perimeter is as small as possible. (Enter the dimensions as a

Amanda [17]

The perimeter of the rectangle is the sum of its dimensions

The dimensions that minimize the perimeter are $\mathbf{10\sqrt{10 },10\sqrt{10 }}$

The area is given as:

$\mathbf{A = 1000}$

Let the dimension be x and y.

So, we have:

$\mathbf{A = xy = 1000}$

Make x the subject

$\mathbf{x = \frac{1000}{y}}$

The perimeter is calculated as:

$\mathbf{P = 2(x + y)}$

Substitute $\mathbf{x = \frac{1000}{y}}$

$\mathbf{P = 2(\frac{1000}{y} + y)}$

Expand

$\mathbf{P = \frac{2000}{y} + 2y}$

Differentiate

$\mathbf{P' = -\frac{2000}{y^2} + 2}$

Set to 0

$\mathbf{ -\frac{2000}{y^2} + 2 = 0}$

Rewrite as:

$\mathbf{ -\frac{2000}{y^2} = -2}$

Divide both sides by -1

$\mathbf{\frac{2000}{y^2} = 2}$

Multiply y^2

$\mathbf{2000 = 2y^2}$

Divide by 2

$\mathbf{1000 = y^2}$

Take square roots of both sides

$\mathbf{y = \sqrt{1000 }}$

$\mathbf{y = 10\sqrt{10 }}$

Substitute $\mathbf{y = \sqrt{1000 }}$ in $\mathbf{x = \frac{1000}{y}}$

$\mathbf{x = \frac{1000}{\sqrt{1000}}}$

$\mathbf{x = \sqrt{1000}}$

$\mathbf{x = 10\sqrt{10 }}$

Hence, the dimensions that minimize the perimeter are $\mathbf{10\sqrt{10 },10\sqrt{10 }}$