3 years ago

Students picked

Mathematics

1 answer:

Ainat [17]3 years ago

8 0

144 divided by 16, 9 pounds

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Sara needs 48 apples. There are 10 apples in each box. How many boxes should Sara buy?

olasank [31]

She should buy 5 boxes because if she bought 4 then she would have 8 without a box

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3 years ago

It will cost $ 8.94 for the ingredients to make one cake of 16 pieces. what is the unit cost of each piece of cake?

Arlecino [84]

Each piece of cake costs $.56 ($.55875)
I divided 8.94 by 16 to find how much one piece costs.

6 0

3 years ago

Select the correct product.<br><br> (x 2 + 4x + 8)(2x - 1)

marusya05 [52]

Answer:

$\large\boxed{(x^2+4x+8)(2x-1)=2x^3+7x^2+12x-8}$

Step-by-step explanation:

Use FOIL: <em>(a + b)(c + d) = ac + ad + bc + bd</em>

$(x^2+4x+8)(2x-1)\\\\=(x^2)(2x)+(x^2)(-1)+(4x)(2x)+(4x)(-1)+(8)(2x)+(8)(-1)\\\\=2x^3-x^2+8x^2-4x+16x-8\qquad\text{combine like terms}\\\\=2x^3+(-x^2+8x^2)+(-4x+16x)-8\\\\=2x^3+7x^2+12x-8$

7 0

3 years ago

Read 2 more answers

4. The senior class at High School A and High School B planned separate trips to New York City. The senior class at High School

cestrela7 [59]

Answer:

van=18

bus=59

Step-by-step explanation:

Let v=van & b=bus

1v+6b=372

1v=372-6b

4v+12b=780

Lets divide by 4

1v+3b=195

then

1v=195-3b

substitute in first expression

372-6b=195-3b

simplify

177=3b

b=59

then substitute

1v=195-3(59)

1V=18

3 0

3 years ago

Read 2 more answers

Bearing question please use working out if you used it

nignag [31]

Answer:

40.80 km

Step-by-step explanation:

Given: AP (opposite)= 33 km

PB(adjacent)= 24 km

Now, finding the value of AB (hypotenous)

Using the pythagorean theoram to solve it.

$AB^{2} = AP^{2} + PB^{2}$

⇒ $AB^{2} = 33^{2} + 24^{2}$

⇒ $AB^{2} = 1089+576$

⇒ $AB^{2} = 1665$

Taking square root on both side, remember; $\sqrt{x^{2} } = x$

⇒ $AB= \sqrt{1665}$

∴ AB= 40.80 km

8 0

4 years ago