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irina1246 [14]
3 years ago
6

PLease help!!!!!!!!!!!!!!!!!!!!!!1

Mathematics
2 answers:
Andrew [12]3 years ago
5 0
4(5x-20)=-20
20x-80=-20 ======> Add 80 to both sides
20x-80+80=-20+80
20x=60======> Divide both sides by 20
20/20x=60/20
x=3
schepotkina [342]3 years ago
3 0
4(5x-20)= -20

20x-80= -20
      +80  +80
____________

20x=60
_______
      20

x=3
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73590 rounded to the nearest thousand
11Alexandr11 [23.1K]
Okay, so here is a small lesson on rounding. When you round you MUST know the place value of each number. Ones, tens, hundreds, thousands, millions.
So, when we look at this number what do we have in the ones place --there is a 0 -- in the tens place we have a 9 and in the the thousands place we have 5. to round this number look at the tens place. if the number is greater than 5 you round 73590 to 73600, if it is 4 and lower it stays the same and the numbers behind change to zero--> like so 73500. But for this problem it would round up to 73600.
5 0
3 years ago
If you had a slope of 3 and a y-intercept of 2, the equation should be
Lady bird [3.3K]

Answer:

y=3x+2

Step-by-step explanation:

There is enough information to make a equation in slope-intercept form.

y=mx+b

'm' is the slope. 'b' is the y-intercept.  

In the given question, 3 is the slope and 2 is the y-intercept. This means that:

m = 3

b = 2

Plug in the appropriate values:

y=mx+b\rightarrow\boxed{y=3x+2}

Hope this helps.

7 0
3 years ago
Mary went up the Old Tower taking 3 steps per second. Then she carefully came down from the tower taking 2 steps per second. It
Inessa [10]

Answer:

old town has 150 steps

Step-by-step explanation:

Let the number of steps in the old tower be m

Mathematically, time = distance/speed

In this case, the distance is the number of steps while the speed is the rate of climbing or descending

For climbing, time spent = m/3

For descending time spent = m/2

Since it took her 25 longer when descending;

This means that;

m/2 - m/3 = 25

(3m-2m)/6 = 25

m/6 = 25

m = 6 * 25

m = 150 steps

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=If%20w%3D2x%2C%20then%20%5Cint%5Climits%5E2_0%20%7Bf%282x%29%7D%20%5C%2C%20dx%20%3D" id="TexFo
elena-14-01-66 [18.8K]
First, you should solve for f(2x), which equals 2*(2x)=4x.  Now, solve the integral of f(2x)=2*(2x)=4x, to get that\int\ {(f(2x)=4x)} \, dx= 2x^2.  You can check this by taking the integral of what you got.  Now by the Fundamental Theorem\int\limits^2_0 {4x} \, dx=[2x^2] ^{2}_{0}=2(2)^{2}-2(0)^2=8.

This should be the answer to your question, if I understood what you were asking correctly. 
8 0
3 years ago
Help me please and thank u
marin [14]

\large \mathfrak{Solution : }

As we know :

Dividend = Divisor × Quotient ( taking remainder as 0 )

So, Quotient = Dividend ÷ Divisor

by using the above relation we can say :

  • q = t ÷ 23

therefore, correct option is C. t ÷ 23

6 0
3 years ago
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