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3 years ago

Solve for x!

2 answers:

7 0

First multiply by 9x. 7 = 378x. Divide each side by 378 to isolate x. 1/54 = x. Check your answer: 7/(1/6) does indeed equal 42.

attashe74 [19]3 years ago

6 0

I'm assuming you meant (7/9)x = 42.

If that's correct, then we can quickly and easily solve for x by multiplying both sides of this equation by 9/7:

(9/7)(7/9)x = (9/7)(42) = 54. x = 54

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58% of what number is 29

Mandarinka [93]

Method 1:

$p\%=\dfrac{p}{100}\\\\58\%=\dfrac{58}{100}=0.58\\\\n-a\ number\\\\0.58n=29\ \ \ \ |:0.58\\\\\boxed{n=50}$

Method 2:

$\begin{array}{ccc}58\%&-&29\\100\%&-&n\end{array}\ \ \ \ \text{cross multiply}\\\\58n=2900\ \ \ \ |:58\\\\\boxed{n=50}$

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3 years ago

What is the area of the triangle?

xxMikexx [17]

Answer:

Step-by-step explanation

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3 years ago

Read 2 more answers

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AysviL [449]

Answer:

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Step-by-step explanation:

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3 years ago

Shalina uses the expression 3x to determine the cost of x notebooks. What is the cost of 24 notebooks?

PIT_PIT [208]

Answer:

$72

Step-by-step explanation:

Let's use substitution to identify the cost of 24 notebooks.

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$3x = ?$

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3 0

2 years ago

Matt decided to go out to eat. He ordered a soda for $2.15, some chicken for $8.77 and a slice of cake for $4.10. What would his

nikklg [1K]

Answer: $ 17.72

Step-by-step explanation:

Cost of soda = $2.15 , Cost of chicken = $8.77 , Cost of slice of cake = $4.10.

Total bill amount = (Cost of soda ) + (Cost of chicken) +(Cost of slice of cake)

= $ (2.15 + 8.77 +4.10)

= $ 15.02

Tip amount = 18% of Total bill amount

= 0.18 (15.02)

= $ 2.7036 ≈ $2.70

Entire bill = Total bill amount + Tip amount

= $ ( 15.02+2.70)

= $ 17.72

Hence, entire bill = $ 17.72

7 0

2 years ago