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3 years ago

The product of a number and 3 is 87 what is the number

Mathematics

2 answers:

IrinaK [193]3 years ago

8 0

The awnser would be 29

n200080 [17]3 years ago

3 0

Answer:

Hey buddy, here is your answer. Hope it helps yo.

Step-by-step explanation:

Let the unknown number be x,

x * 3=87. To find out the x we need to divide 87 by 3. That gives you 29. So the unknown number is 29. 29*3=87.

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A 21 foot tower must be secured with a wire anchored 7 feet from the base of the tower. What angle will the wire make with the g

weqwewe [10]

Answer:

Step-by-step explanation:

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4 years ago

Write the equation of each line in slope intercept form (If possible please show work)

kow [346]

Answer:

y = -2/3x-9

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

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7 0

3 years ago

Which of the binomials below is a factor of this trinomial?<br> 4x2 + 21x + 5

guapka [62]

Answer:

B. 4x + 1

Step-by-step explanation:

4x^2 + 21x + 5

= (4x + 1)(x + 5)

Factors of this trinomial are (4x + 1) and (x + 5)

Answer

(4x + 1)

8 0

3 years ago

I’m stuck, need help, please?

Ymorist [56]

Answer:

C. Line 3

Step-by-step explanation:

4 0

3 years ago

A car's speedometer has a percent error of 5%. The speedometer currently shows that the car is traveling at a speed of 60 mph.

Minchanka [31]

Answer:

The actual speed of the car is either 57 mph or 63 mph

Step-by-step explanation:

Given as :

The measured speed o the car = 60 mph

The percentage error in speedometer = 5 %

Let The actual speed of car = x mph

Now, percentage error = $\dfrac{\textrm actual value - \textrm measured value}{\textrm measured value}$ × 100

So, $\frac{5}{100}$ = $\frac{x - 60}{60}$

or, $\frac{5}{100}$ × 60 = x - 60

Or, 3 = x - 60

∴ x = 63 mph

Hence The actual speed of the car is either 57 mph or 63 mph . Answer

8 0

3 years ago