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Gemiola [76]
3 years ago
10

Math is not my thing! Can you help?

Mathematics
2 answers:
aksik [14]3 years ago
8 0

Answer:

12

Step-by-step explanation:

Equation: 5x + 9 - 4x

Plug in x = 3

New equation: 5(3) + 9 - 4(3)

Simplify: 15 + 9 - 12

Simplify: 12

<u>Answer: 12</u>

V125BC [204]3 years ago
6 0

Answer:

x+9

Step-by-step explanation:

5+9−4

1+9

x + 9

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What is 7,5444+789=?
lisov135 [29]

Answer:

76233

Step-by-step explanation:

Add the numbers together:

75444 + 789 = 76233

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3 years ago
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A pack of folders has a length of 5 inches, a width of 12 inches, and a height of 1 inch. The pack of folders will be shipped in
777dan777 [17]

Answer:

A) Each pack of folders has a volume of 60 cubic inches.

B) The box has a volume of about 720 cubic inches

D) If the box help 20 packs of folders, it would have a volume of about 1,200 cubic inches.

Step-by-step explanation:

<em><u>Verify each statement</u></em>

<em>A) Each pack of folders has a volume of 60 cubic inches.</em>

The statement is True

Because

The volume of each pack of folders is equal to

V=(5)(12)(1)=60\ in^{3}

<em>B) The box has a volume of about 720 cubic inches</em>

The statement is True

Because

The volume of the box is equal to the volume  of one pack of folders multiplied by 12

so

V=(12)60=720\ in^{3}

<em>C) If the box held 15 packs of folders, it would have a volume of about 1,200 cubic inches</em>

The statement is False

Because

Applying proportion

\frac{12}{720}\frac{packs}{in^{3}}=\frac{15}{x}\frac{packs}{in^{3}}\\ \\x=720*15/12\\ \\x=900\ in^{3}

900\ in^{3}\neq 1,200\ in^{3}

<em>D) If the box help 20 packs of folders, it would have a volume of about 1,200 cubic inches.</em>

The statement is True

Because

Applying proportion

\frac{12}{720}\frac{packs}{in^{3}}=\frac{20}{x}\frac{packs}{in^{3}}\\ \\x=720*20/12\\ \\x=1,200\ in^{3}

1,200\ in^{3}= 1,200\ in^{3}

<em>E) Each pack of folders has a volume of 24 cubic inches.</em>

The statement is False

Because

The volume of each pack of folders is equal to

V=(5)(12)(1)=60\ in^{3}

7 0
3 years ago
Which angle is complementary to Angle C O D?
zepelin [54]

Answer:

<u>Angle B O C</u>

<u />

Step-by-step explanation:

<em>Complementary angles add up to </em><em>90</em>

<em>Angles COD and BOC form a right angle which means they add up to </em><em>90</em><em>.</em>

<em />

8 0
3 years ago
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Please help meeeeeee...
dangina [55]
Parallel means lines that never meet, and perpendicular are lines that meet at right angles.

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3 years ago
The diagonal of rectangle ABCD measures 2 inches in
ryzh [129]

Answer:

B. √3

Step-by-step explanation:

Edge 2021

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