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2 years ago

Please help me if you know, thank you :)

Mathematics

2 answers:

marysya [2.9K]2 years ago

7 0

294/X= -14
Cross multiply
294= -14X
Divide both sides by -14
294 : -14 = -21
-14 gets cancelled out so the X is isolated
X= -21 or -21=X it doesn’t really matter which way you put it

zzz [600]2 years ago

7 0

X is equivalent to -21

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Harlamova29_29 [7]

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So, you can go through each of your options to see which ones work with those rules.

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B. -10x - 3y = 1 No, this is not in Standard Form. A is -10, but A can't be negative.

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3 years ago

At a picnic there were 3 times as many adults as children and twice as many women as men. If there was a total of x men, women,

Dennis_Churaev [7]

Answer:

$\dfrac{x}{4}$

C is correct.

Step-by-step explanation:

At a picnic,

Number of adults is 3 times as number of children.

Number of women is twice as number of men.

Total number of men, women and children at the picnic be x

Let number of children be c

Let number of men be m

Let number of women be w

# Number of women is twice as number of men, w = 2m

# Number of adults is 3 times as number of children, w + m = 3c

2m + m = 3c (∴ w=2m )

c = m

Total number of men, women and children at the picnic be x

∵ c + m + w = x

m + m + 2m = x

4m = x

Number of men, $m=\dfrac{x}{4}$

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2 years ago

Susan incorrectly factored the expression below. 12a − 15b + 6 3 (4a + 5b + 3)

hichkok12 [17]

Answer:

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Step-by-step explanation:

The answer should have originally been 3(4a-5b+2)

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2 years ago

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Anni [7]

Answer:

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Step-by-step explanation:

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This dot can donate multiplication when in the middle of two numbers and/or fractions.

But if you're talking about some other point, then I don't know, sorry. :(

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2 years ago

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4vir4ik [10]

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3 years ago