MATHEMATICS HIGH SCHOOL

Solve the equation for x
3/10x-1/5=1

Answers

Answer 1
Answer:

Answer:

x=4

Step-by-step explanation:

(3)/(10)x-(1)/(5)=1\n \n(3)/(10)x=(6)/(5) \n3x=12\nx=4

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Which are correct select all that apply
Write the equation for the perpendicular bisector of a segment that has endpoints (–1, 10) and (3, 6).A) y = x – 7B) y = x + 7C) y = –x + 9D) y = x + 11
You earn $22,000. The tax table says you owe $3,456 in taxes. During the year, your tax withholdings were $5,333. What is your refund?

Which function has a y-value of 12, if the x-value is 3?y = x - 6
y = 4x
y = x + 8
y = 3x

Answers

answet no.2
bec 4×3 =12

40% of what number is 68?

Answers

0.4 * x = 68
x = 68/0.4
x = 170

check:

0.4 * 170 = 68
0.40% of a number is 68
40% of n = 68

40% = (40)/(100) = 0.4

0.4 × n = 68

(0.4n)/(0.4) = (68)/(0.4)
n = 170

40% of 170 is 68

For the equation y = 3x2 − 4x + 11, choose the correct application of the quadratic formula. x equals four plus or minus the square root of negative four squared minus four times three times eleven, all divided by two ti x equals negative four plus or minus the square root of negative four squared minus four times three times eleven, all divided x equals negative three plus or minus the square root of three squared minus four times negative four times eleven, all divided x equals three plus or minus the square root of three squared minus four times negative four times eleven, all divided by two t

Answers

y = 3x² - 4x + 11
0 = 3x² - 4x + 11
x = -(-4) ± √((-4)² - 4(13)(11))
                     2(3)
x = 4 ± √(16 - 4(143))
                     6
x = 4 ± √(16 - 572)
                   6
x = 4 ± √(556)
              6
x = 4 ± 2√(139)
             6
x = 2 ± √(139)
             3

Answer:

What he said below was that it was your second choice

(hope this helps or at least thats what i got from it)

Ana bought a van that holds 20.75 gallons of gas and gets an average of 15.5 miles per gallon. How many miles can she expect to drive on a full tank of gas? *

Answers

The van holds 20.75 gallons.

The van gets an average of 15.5 miles per gallon.

To find your answer, multiply 20.75 by 15.5.

So, 20.75 x 15.5 = 321.625.

Round off to the nearest hundred to get 300 miles.

Jeremy got a haircut and paid 15% as a tip.A. what percent of the cost did jeremy pay the barber, including the tip:

B. what is the cost of the haircut

C. calculate the total cost of the haircut, including the tip

D.If you only wanted to know the tip amount, how would you change the process you used in part c to calculate the total cost

Answers

Answer:

Sure! Here are the answers:

A. Jeremy paid 100% + 15% = **115%** of the cost to the barber, including the tip.

B. Let's say the cost of the haircut is x dollars. Then, Jeremy paid a tip of 15% of x which is 0.15x dollars. Therefore, the cost of the haircut is x + 0.15x = **1.15x** dollars.

C. The total cost of the haircut, including the tip is 115% of the cost of the haircut. So, if the cost of the haircut is x dollars, then the total cost is 115% of x which is 1.15x dollars.

D. If you only wanted to know the tip amount, you would calculate 15% of the cost of the haircut which is 0.15 times x or **0.15x** dollars.

I hope this helps!

Step-by-step explanation:

A​ penny a​ nickel a​ dime and a quarter are tossed. what is the probability of obtaining four tailsfour tails on the​ tosses?

Answers

Probability  of a tail for any on coin = 1/2
As the  tosses of the 4 coins are independent of each other we multyiply the probs:-
P(4 tails) = 1/2 * 1/2*1/2*1/2 = 1/16
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