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2 years ago

Help with my math please!!!

Mathematics

2 answers:

madam [21]2 years ago

7 0

Answer:

x-12≤7

x≤19

Step-by-step explanation:

less than means it comes after

x-12

is at most means less than or equal to

x-12≤7

Add 12 to each side

x-12+12≤7+12

x≤19

bija089 [108]2 years ago

4 0

Answer:

X - 12 ≤ 7; X ≤ 19

Step-by-step explanation:

Using the keywords less than, at most, and 'a number' we can identify the expression.

Now let's solve for x:

x - 12 ≤ 7

+12 +12

X ≤ 19

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How many solutions does the equation have? -4x - 9 = 12 - 4x

pickupchik [31]

Answer:

No Solution

Step-by-step explanation:

-4x - 9 = 12 - 4x

You add 4x on both sides

-9 ≠ 12

No Solution

4 0

2 years ago

Please help meeeeeeeee

kiruha [24]

Answer:

24 units²

Step-by-step explanation:

Surface area of a cube = 6a² , where a = the side given

=> 6(2)²

=> 6(4)

=> 24 units²

Hope this helps!

4 0

2 years ago

Read 2 more answers

Solve for x.

S_A_V [24]

Answer:

x = {-2, 2/3}

Step-by-step explanation:

2x = -4

x = -2

3x = 2

x = 2/3

x = {-2, 2/3}

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2 years ago

Using Euler’s formula, how many edges does a polyhedron with 20 faces and 12 vertices have?

astra-53 [7]

Euler's formula for a polyhedron is given by:

$\begin{gathered} F+V=E+2 \\ \text{where,} \\ F=\text{faces} \\ V=\text{vertices} \\ E=\text{edges} \end{gathered}$

Make E, the subject of the formula:

$\begin{gathered} F+V=E+2 \\ E=F+V-2 \end{gathered}$

Put F = 20, V = 12, to obtain E,

$\begin{gathered} E=20+12-2 \\ E=30 \end{gathered}$

Therefore, there are 30 edges

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9 months ago

17 dozen cookies are made in 2 hours. At this rate, how many are made in 5 hours?

prohojiy [21]

Answer:

= 12 miles per hour

Step-by-step explanation:

thats the answer i promise plus im in 6th grade

7 0

2 years ago