Write the fraction as a difference 3x - 7/12

Mathematics

1 answer:

emmainna [20.7K]4 years ago

4 0

➡3x - ( 7 over 12)

➡ [12 (3x ) - 7 ] over 12

➡ ( 36x - 7 ) over 12

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Read 2 more answers

I need help to find the measures and equation pls.

siniylev [52]

Answer:

Equation: 7x + 8x = 180

x = 12

∠CBA = 84

∠CFH = 96

Step-by-step explanation:

We can see that ∠CBA = ∠CFE and ∠CBD = ∠CFH.

We know that the sums of two angles on a straight line are going to be equal to 180.

∠CBA = 7x

∠CFH = 8x

To find the value of x, we must do the following:

7x + 8x = 180

15x = 180

15x/15 = 180/15

x = 12

Now we just substitute to find the angle measures:

∠CBA = 7 · 12 = 84

∠ CFH = 8 · 12 = 96

7 0

2 years ago

Can someone help please??

zloy xaker [14]

Answer:

○ D. 29

Step-by-step explanation:

According to the Order of Operations [GEMS\BOMDAS\PEMDAS etc.], evaluate all expressions inside grouping symbols, take care of the exponents, indices, roots, etcetera, evaluate Division & Multiplication from left to right, then evaluate Subtraction & Addition from right to left [or left to right, as long as you know what you are doing correctly]:

$(5 + 1)^{2} - (12 + {3}^{2}) \div 3 = {6}^{2} - (12 + 9) \div 3 = \\ \\ 36 - 21 \div 3 = 36 - 7 = 29$