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insens350 [35]
3 years ago
5

3(2x+5)=45 I need help doing it in the proof form in 4 steps

Mathematics
2 answers:
Furkat [3]3 years ago
7 0
Well 2x5 is 10 add 3 13 + 32 = 45
babunello [35]3 years ago
6 0

Answer:

Step-by-step explanation:

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Help me! :( will appreciate any type of help
KengaRu [80]

Answer:32

Step-by-step explanation: (2+3x)= 98 then solve

8 0
3 years ago
Danny answered 70 % questions correctly on his math test. if he answered 35 questions correctly, how man y were on the test
liraira [26]

Answer:

50 questions.

Step-by-step explanation:

70% - 35

100% - \frac{100}{70} × 35 = 50

6 0
3 years ago
A radio transmission tower is 170 feet tall. how long should a guy wire be if it is attached 15 feet from the top and is to make
beks73 [17]
The image of the given scenario is attached below.

A right angled triangle is formed, with one angle equal to 27 degrees. The perpendicular side is 155 and we are to find the length of guy wire which makes the hypotenuse of the right angled triangle.

Using the formula of sine, we can write:

sin(27)= \frac{155}{x}  \\  \\ 
x= \frac{155}{sin(27)} \\  \\ 
x=341

Rounding to nearest whole number, the length of the guy wire that must be attached is 341 feet. 

5 0
3 years ago
Evaluate: (5x) expression 2 - 3 if x=2 <br><br> Help please
charle [14.2K]
Assuming that you mean 5x(2-3) for your equation, you would just have to plug 2 into where x is. This makes your equation 5*2(2-3). This gives you 10(-1) because 5*2=10, and 2-3=-1. Then simply multiply the two to get:

-10

Hope this helped!
4 0
3 years ago
Match the mean, median, mode, and range for the data set below. 2, 7, 8, 4, 8, 2, 5, 5, 7, 2
dusya [7]

Answer:

Mean - 5

Median - 5

Mode - 2

Range - 6

Step-by-step explanation:

Mean-

If you add 2 + 7 + 8 + 4 + 8 + 2+ 5+ 5+ 7 +2= 50

50 divided by 10 (the amount of numbers in the equation) = 5 for the mean

Median-

Put the numbers in order which is

2,2,2,4,5,5,7,7,8,8 and the number is the middle is 5

Mode-

The number that repeats the most is 2

Range-

The largest number is 8 and the smallest number is 2 so 8-2=6

5 0
3 years ago
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