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3 years ago

Write the equation in standard form -5y 6y = -12

1 answer:

5 0

-5y+ 6y = -12

Ax + by = c

It's just rare to leave "ax" as negative, so we multiply everything by "-1" in order to change that;
but that is already in standard form, because it is in the ax+by= c, form.

5y - 6y = 12

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Antonia incorrectly solves the equation −2(14−54a)=6 . Her work is shown below.

bekas [8.4K]

Answer:

For the yes/no bit:

step 1: no

step 2: no

step 3: yes

step 4: yes

step 5: no

for the final answer bit: a = 2 3/5 (the last option)

Step-by-step explanation:

yes/no bit:

step 1 is wrong because she didn't multiply $-\frac{5}{4}a$ by -2

step 2 is wrong because she subtracted 1/2 instead of adding it

step 3 is correct because 6 - 1/2 = 11/2

step 4 is correct because she correctly multiplied both sides by 4

step 5 is wrong because she added 5 instead of dividing by -5.

for the final answer bit, I've attached an image below with my working out. hope this helps!

6 0

2 years ago

Simplify.

TiliK225 [7]

Answer:

53.8

Step-by-step explanation:

45+8= 8

then add the decimal 0.0+0.8= 0.8

53.8

4 0

1 year ago

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Six times a number is at least four less than eight times the number. If x represents the number which will help the number

g100num [7]

"help the number ... ?"

6x ≥ 8x-4

Then 4≥2x, or 2≥x, or x≤2.

3 0

3 years ago

Is this answer correct on problem 3

Yuri [45]

-1/4*x^2-x+3=-1/4*(x^2+4x)+3=-1/4*(x^2+4x+4)+4=-1/4*(x+2)^2+4
x0=-2

6 0

3 years ago

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What is the expression in the simplest radical form 3 square root of 120

Kipish [7]

(3×100)+(3×20)+(3×0)

4 0

3 years ago

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