All categories

4 years ago

What is the value of 3m- 2, if m = 7.

Mathematics

1 answer:

nadezda [96]4 years ago

8 0

Answer:

m=3

Step-by-step explanation:

3m-2=7

3(3)-2=7

9-2=7

You might be interested in

Mikayla is buying deli meat and cheese for sandwiches for a family reunion. How much will she spend on 4.5 pounds of ham and 3.5

yanalaym [24]

4.5(4.59) + 3.5(3.79) = 20.66 + 13.27 = 33.93 <==

8 0

3 years ago

Read 2 more answers

Plz help <br> People with a strong mind won't ignore

Genrish500 [490]

Answer:

28. (H) 24 ft

30. (F) $\frac{5}{52}$

Step-by-step explanation:

28. A right triangle can be formed, where the length of the cable represents the hypotenuse, and the ground represents the base of the triangle. From the pythagorean theorem,

$a^2 + b^2 = c^2$

where a and b are legs, and c is the hypotenuse of a right triangle.

$18^2 + b^2 = 30^2\\b = \sqrt{30^2 - 18^2}\\b = \sqrt{576}\\b = 24$

30. The probability of drawing a red 1 is $\frac{2}{52}$ (a red star 1 or a red heart 1), the probability of drawing a black 3 is $\frac{2}{52}$ (a black triangle 3 or a black circle 3), and the probability of drawing a six of hearts is $\frac{1}{52}$ (since there is only one six of hearts in the entire deck). Since each of the cards is mutually exclusive from one another, the probability of drawing any of them is simply all of their probabilities added together. That is,

$\frac{2}{52} + \frac{2}{52} + \frac{1}{52} = \frac{5}{52}$

6 0

4 years ago

A 66-ft vertical post casts a 14-in shadow at the same time a nearby cell phone tower casts a 119-ft shadow. How tall is the

sergij07 [2.7K]

Set up a proportion then cross multiply to solve.
14/66 = 119/x
14x= 66(119)
14x=7854
x=561 ft

3 0

3 years ago

If there are 3500 students in a school and 3/7 of them

AlexFokin [52]

Answer:

1500

Step-by-step explanation:

3/7 of 3500

=3/7 × 3500

=150

6 0

2 years ago

A manufacturing firm just received a shipment of 20 assembly parts, of slightly varied sizes, from a vendor. The manager knows t

Marat540 [252]

Answer:

a. 0.75

b. 0.5526

c. 0.1974

Step-by-step explanation:

Probability is typically expressed as a fraction where the numerator is the number of desired outcomes and the denominator is the total number of outcomes. In this case the suitable parts is the desired outcome and the total shipment is the total parts:

$\frac{suitable}{total}=\frac{15}{20}=\frac{3}{4}=0.75$

The probability the both the first and second part are suitable:

$\frac{15}{20}*\frac{14}{19}=\frac{210}{380}=0.5526$

Since the probability of getting a suitable part the first time is 15/20, then there is one less suitable part and one less part overall to choose on the second time, or 14/19.

Lastly, the probability of choosing a suitable part the first time is again 15/20, but the second part not being suitable would be 5/19:

4 0

3 years ago