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3 years ago

If 3 times a certain number is increased by 4 the result is 28. What is the number?

1 answer:

8 0

3x+4=28 because 3 times an unknown number was mentioned first and mentioned together so they will be together, increased by 4 is +4 and comes after, the result of is the same as equals so you put the equals sign and whatever number they gave after.

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If u=(0,3), what is the magnitude of 3u

Rina8888 [55]

Answer:

9.

Step-by-step explanation:

3 * √)0^2 + 3^2)

= 3*3

= 9.

4 0

3 years ago

Which of the following is the equation of a line perpendicular to the line 7= –3/2 x + 4

frosja888 [35]

Answer:

Option c is correct !!

Step-by-step explanation:

[ Refer to the attachment ]

As y = mx + c is an equation to represent the straight line ; we equate the given line with this equation !!

Where m is slope of the line

and c is y intercept !!

We get , m = -3/2 and c = 4

Also, two perpendicular lines follows the equation :-

$(m1)(m2) = - 1$

Where m nth is slope of nth line !!

8 0

3 years ago

Express $112 for 14 hours as a unit rate

Blizzard [7]

14 hours = $112
1 hour = 112 ÷ 14 = $8

-----------------------------------------------
Answer: It is $8/hour
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3 0

3 years ago

Read 2 more answers

What is 100 miles in 2.5 hours

xenn [34]

Answer:

40 Miles Per Hour

Step-by-step explanation:

If this is traveling 100 Miles in 2.5 hours...

100/2.5 = 40

You would have to go 40 Miles Per Hour.

7 0

3 years ago

Read 2 more answers

Evaluate (2 - 3)^(4) - 9÷3 ⭕ -7 ⭕ -2 ⭕ 1 ⭕2 which one??

kupik [55]

Answer:

Step-by-step explanation:

(2 - 3)^(4) - 9÷3

-1^4-(-3)

-1-(-3)

-1+3=2

So the answer is 2,

Hope this Helps!

3 0

3 years ago