MATHEMATICS HIGH SCHOOL

Solve for w.
4 = 0.25(w-4.3)

Answers

Answer 1
Answer:

W=20.3

solve what's in the parenthesis, move the terms, calculate, then divide both sides.
Answer 2
Answer:

Answer:

20.3

Step-by-step explanation:

I did it and it was right on khan

Related Questions

If 75 pairs of jeans are sold, what is the company’s profit?
16,900,000 in scientific notation
.If two checks were written and one deposit was made into an account in one day, the account’s ending balance on that day ____________ its starting balance on that day.cannot be less thanmust be less thanmight be less thannone of the above
athan had an infection, and his doctor wanted him to take penicillin. Because Nathan’s father and paternal grandfather were allergic to penicillin, Nathan had a 75% chance of having the same allergy. The doctor performed a skin test to see whether Nathan would react to it. The test is 98% accurate. What is the probability that Nathan is allergic to penicillin and the test predicts it?
Solve the following systems of equations:- 7x + y = 48x - 3y = 1X=y =

Penn stacks all of his snowballs in a square pyramid. The number of snowballs, P(n), in n layers of the square pyramid is given by P(n) = P(n-1) + n^2 Which could not be the number of snowballs Penn has? 5, 30, 25, 14

Answers

Naturally, a pyramid of zero layers doesn't need any snowballs, so P(0) = 0. Then using the given recurrence, we find

P(1) = 1

P(2) = 1 + 4 = 5

P(3) = 1 + 4 + 9 = 14

P(4) = 1 + 4 + 9 + 16 = 30

and so on; luckily, three of these are listed among the answer choices, which leaves 25 as an insufficient number of snowballs to make such a pyramid.

More generally, we would end up with

P(n) = 1^2 + 2^2 + 3^2 + \cdots + n^2 = \displaystyle \sum_(k=1)^n k^2 = \frac{n(n+1)(2n+1)}6

Then given some number of snowballs S, you could try to solve for n such that

S = n (n + 1) (2n + 1)/6

and any S that makes n a non-integer would be the answer.

. Lisa spent $67 for a skateboard and $25 for a protective helmet.. . . . What percent of the total amount that Lisa spent was the price of the skateboard? A. . . 62.7%. . . . . . . . .
B. . . 72.8%. . . . . . . . .
C. . . 75%. . . . . . . . .
D. . . 81.7%. .

Answers

Total amount: $67 + $25 = $92
p = ( 67 x 100 ) : 92 = 72.826 ≈ 72.8 %
Answer: 72.8 %

What is the solution of the system? Use elimination.3x - 4y = 9
-3x + 2y = 9

A. (3,9)
B. (-27,9)
C. (-3,-6)
D. (-9,9)

Answers

(one way is to subsitute since both equal 9 you do 3x-4y=-3x+2y then add 3x to both sides 6x-4y=2y add 4y to both sides 6x=6y divide by 6 x=y now subsitute 3x-4x=9 -x=9 multiply -1  x=9  x=y y=-9)


use elimination
add them together to cancel x terms
3x-4y=9
-3x+2y=9  +
0x-2y=18
-2y=18
divide by 2
-y=9
multiply -1
y=-9
subsituete

3x-4y=9
3x-(4 times -9)=9
3x-(-36)=9
3x+36=9
subtract 36 from both sides
3x=-27
divide both sides by 3
x=-9

x=-9
y=-9

the answer is  in (x,y) form
(-9,-9)
the answer is none of them (D is closest)

Answer:

(-9,-9)


Explanation:

The two given equations are:

3x - 4y = 9

-3x + 2y = 9


First step is to add the two equations in order to eliminate the x.

This will give us:

-4y + 2y = 9 + 9

-2y = 18

y = -9


Now, we substitute with the value of y in any of the equations to get x as follows:

3x - 4y = 9

3x - 4(-9) = 9

3x + 36 = 9

3x = -27

x = -9


Hope this helps :)

What is 3.21 rounded to the nearest tenth ?

Answers

3.2
...........
............
:)

GEOMETRY! What transformation transforms (p, q) to (q, p)​?

a) a reflection over the y-axis

b) a reflection over y = x

c) a rotation of 90° about the origin

d) a reflection over the x-axis

Answers

(q, p) is transformed from (p, q) by a reflection over y = x

What are the coordinates of B and how is that the answer ?

Answers

Step-by-step explanation:

Point A = (-1, -3).

Midway of AB = (-3, 2).

Let Point B = (x, y).

Then (-1, -3) - (-3, 2) = (-3, 2) - (x, y).

=> (2, -5) = (-3-x, 2-y).

We have -3 - x = 2 and 2 - y = -5.

So x = -5 and y = 7.

Hence, point B = (-5, 7).
Other Questions
A deer population is estimated to be 4,350. The growth rate of the population is given by the equation y=4350(1.07) . What is the percent rate of growth of the deer population?43.5%107%7%0.07%Algebra 2
One route along flat terrain from Hermansville to Melville is to drive straight north from Hermansville for 120 miles to Jamestown, then, at Jamestown, to drive straight west for 80 miles to Melville. If a straight,flat road existed between Hermansville and Melville,approximately how many miles long would it be?
Solve using order of operations.16 + (4 ∙ 2) – 3
1.a crew took 24 days to complete 40% of a job; how much additional time to complete the job? 34,35,36 or 38 days?2.a gas tank is 3.6 full. it takes 90 gallons to fill the tank. the total number of gallons the tank can hold is? 50, 89, 144 or 225?